Water & air Quality Directory 2019

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WATER & AIR QUALITY DIRECTORY 2019 KERALA STATE POLLUTION CONTROL BOARD tIcf kwØm\ aen\oIcW \nb{´W t_mÀUv Data edited and compiled by V T Sajimon Chief Environmental Scienst M.H. Sherafudeen Senior Environmental Scienst K.B. Sreeja Environmental Scienst

Transcript of Water & air Quality Directory 2019

Water & air Quality Directory 2019

Kerala State Pollution Control Board tIc-f kwØm-\ a-en-\oI-c-W \n-b{´-W t_mÀUv

Data edited and compiled by

V T SajimonChief Environmental Scientist

M.H. SherafudeenSenior Environmental Scientist

K.B. Sreeja Environmental Scientist

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INTRODUCTIONKerala State Pollution Control Board with great pleasure is publishing the Water and Air Quality

Directory -2019, the 12th in its series, illustrating the status of water and air quality of our State. The water and Air quality data were generated by the laboratories of the Board during the year 2019 by monthly water quality monitoring and 24 hours Air quality monitoring. The data along with the location maps of various monitoring stations are presented in the directory. Details of monitoring conducted by the boardare shown below:-

1. National Water Quality Monitoring Programme (NWMP) : A total of 128 monitoring stations which include 65 stations in 42 Rivers, seven in Rivulets/ Tributaries, six in Reservoirs, Three in fresh water Lakes, eight in Estuarine lakes, Three in canals, Two in ponds and 34 station in Ground water under this programme.

2. State Water Quality Monitoring Programme (SWMP) at 129 stations in 22 rivers and 23 stations in 4 lakes.

3. National Ambient Air Quality Monitoring Programme (NAMP) at 27 stations in the state.

4. State Ambient Air Quality Monitoring (SAMP) at 8 stations in the state.

5. PM 2.5 monitoring commenced in all districts during 2019.

6. Monitoring Water Quality of Rural Water Supply Schemes.

7. Continuous Ambient Air Quality Monitoring Stations (CAAQMS) have been established one each at Thiruvananthapuram, Kollam, Kannur, Kozhikode and two stations at Ernakulam (one in commercial and one in industrial area).

The Designated Best Use (DBU) classification of the water bodies given in this directory is as per the Water Quality Criteria evolved by the CPCB. (Annexure IV). We express our sincere gratitude to the Central Pollution Control Board for their continuing co-operation and support, the Kerala State Remote sensing and Environment Centre for their valuable help for preparing the maps and the Board staff who collected samples, analyzed, consolidated and compiled the reports. Any suggestions and criticisms on how to improve the directory further would be entertained.As in the previous year, the trend analysis of Water Quality of major rivers and of Ambient Air Quality at the stations has also been presented incorporating the annual average data of 2019.We are proud to mention that the Board’s Central Laboratory at Gandhi Nagar, Cochin – 20 is an NABL accredited Laboratory as per ISO/IEC 17025:2017 by the National Accreditation Board for Testing and Calibration Laboratories for 61 parameters in the discipline of chemical and biological testing.

SREEKALA S PRof. K. P. SUDHEERMember Secretary Chairman

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CONTeNTs

1. RIVER STATIoNS1.1 Neyyar River ................................................................................................................. 131.2 Mamom River .............................................................................................................. 151.3 Ayroor River ................................................................................................................. 171.4 Karamana River ............................................................................................................ 191.5 Ithikkara River .............................................................................................................. 221.6 Vamanapuram River .................................................................................................... 251.7 Pallickal River ............................................................................................................... 271.8 Achenkovil River ........................................................................................................... 301.9 Kallada River ................................................................................................................. 341.10 Pamba River ............................................................................................................... 371.11 Meenachil River ......................................................................................................... 411.12 Manimala River .......................................................................................................... 441.13 Periyar River ............................................................................................................... 481.14 Muvattupuzha River ................................................................................................... 51 1.15 Chalakudy River ......................................................................................................... 541.16 Karuvannur River ....................................................................................................... 571.17 Puzhakkal River .......................................................................................................... 601.18 Keecheri River ............................................................................................................ 621.19 Bharathapuzha river .................................................................................................. 641.20 Kadalundi River .......................................................................................................... 681.21 Tirur River .................................................................................................................. 711.22 Chaliyar River ............................................................................................................. 741.23 Kabani River ............................................................................................................... 771.24 Bhavani River ............................................................................................................. 801.25 Kuttiyadi River ............................................................................................................ 831.26 Mahi River .................................................................................................................. 85

WATER QUALITY DATA of NATIoNAL WATER QUALITY MoNIToRING PRoGRAMME (NWMP) AND STATE WATER QUALITY MoNIToRING PRoGRAMME (SWMP) - 2019

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1.27 Kallai River .................................................................................................................. 871.28 Korapuzha River ......................................................................................................... 891.29 Kuppam river .............................................................................................................. 921.30 Thalassery River ......................................................................................................... 941.31 Ancharakkandy River ................................................................................................. 961.32 Ramapuram River ...................................................................................................... 991.33 Kavai River ................................................................................................................ 1011.34 Valapattanam River .................................................................................................. 1031.35 Neeleswaram River .................................................................................................. 1061.36 Kariangode River ...................................................................................................... 1081.37 Chandragiri River ..................................................................................................... 1101.38 Mogral River ............................................................................................................. 1121.39 Shiriya River ............................................................................................................. 1141.40 Uppala River ............................................................................................................. 1171.41 Manjeswaram River ................................................................................................. 1191.42 Peruvamba River ...................................................................................................... 1211.43 Thodupuzha River ..................................................................................................... 1231.44 Munnar River ............................................................................................................ 125

2. RIVULETS/TRIBUTARIES2.1 Kadambrayar .............................................................................................................. 1292.2 Chithrapuzha .............................................................................................................. 1312.3 Korayar ....................................................................................................................... 1332.4 Pullur River ................................................................................................................. 1352.5 Kalpathy Puzha ........................................................................................................... 1372.6 Maniyankode Puzha ................................................................................................... 138

3. fRESH WATER LAKES3.1 Vellayani Lake ............................................................................................................. 1413.2 Sasthamkotta Lake ..................................................................................................... 1433.3 Pookode Lake ............................................................................................................. 145

4. ESTUARINE LAKES4.1 Akkulam Lake ............................................................................................................. 1494.2 Ashtamudi Lake ........................................................................................................... 1504.3 Paravur Lake ............................................................................................................... 1514.4 Punnamada Lake ........................................................................................................ 1524.5 Vembanadu Lake ........................................................................................................ 1534.6 Kodungallur Lake ........................................................................................................ 1554.7. Kayamkulam Lake ...................................................................................................... 156

5. RESERVoIRS, PoNDS AND CANAL STATIoNS5.1 Pazhassi Reservoir ...................................................................................................... 1595.2 Edamalayar Reservoir ................................................................................................ 1605.3 Bhoothathankettu Reservoir ..................................................................................... 1615.4 Malampuzha Reservoir .............................................................................................. 1625.5 Periyar (Thekkady) Reservoir ..................................................................................... 163

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5.6 Karapuzha Reservoir .................................................................................................. 1655.7 Mananchira Pond ....................................................................................................... 1665.8 Padmatheertham Pond .............................................................................................. 1675.9 Canoli Canal ............................................................................................................... 1685.10 Palakkattuthazham Thode ....................................................................................... 1695.11 Unthithode ............................................................................................................... 170

6. WELL STATIoNS6.1 Pappanamcode .......................................................................................................... 1736.2 Nedumangad .............................................................................................................. 1746.3 Kundara ...................................................................................................................... 1756.4 KMML ......................................................................................................................... 1766.5 Kureeppuzha .............................................................................................................. 1776.6 Punalur ....................................................................................................................... 1786.7 Fathimapuram ............................................................................................................ 1796.8 Karoor ......................................................................................................................... 1806.9 Vaikom ........................................................................................................................ 1816.10 Vadavathoor ............................................................................................................. 1826.11 Cherthala .................................................................................................................. 1836.12 Sarvodayapuram ...................................................................................................... 1846.13 Vyttila ....................................................................................................................... 1856.14 Edayar ...................................................................................................................... 1866.15 Brahmapuram .......................................................................................................... 1876.16 Eloor ......................................................................................................................... 1886.17 Kalamassery ............................................................................................................. 1896.18 Poonkunnam ............................................................................................................ 1906.19 Laloor ....................................................................................................................... 1916.20 Ollur ......................................................................................................................... 1926.21 Karukamani .............................................................................................................. 1936.22 Malappuram ............................................................................................................ 1946.23 Manjeri ..................................................................................................................... 1956.24 Chungappally ........................................................................................................... 1966.25 Mavoor ..................................................................................................................... 1976.26 Vellippararamba ....................................................................................................... 1986.27 Kannur ...................................................................................................................... 1996.28 Karimbam ................................................................................................................. 2006.29 Parassinikkadavu ...................................................................................................... 2016.30 Payyannur-1 ............................................................................................................. 2026.31 Payyannur-2 ............................................................................................................. 2036.32 Punnelpettippalam .................................................................................................. 2046.33 Ambalamugal Bore well ............................................................................................ 2056.34 Chelora Trenching ground ........................................................................................ 206

7. GENERAL TREND ANALYSIS of SELECTED RIVER STATIoNS (2012-2019)7.1 Achenkovil River ......................................................................................................... 2097.2 Bharathapuzha ........................................................................................................... 2117.3 Chalakudy River ......................................................................................................... 213

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7.4 Chaliyar River ............................................................................................................. 2147.5 Chandragiri River ....................................................................................................... 2167.6 Kadalundi River .......................................................................................................... 2177.7 Kallada River ............................................................................................................... 2197.8 Muvattupuzha River ................................................................................................... 2207.9 Pamba river ................................................................................................................ 2217.10 Periyar River ............................................................................................................. 2247.11 Karamana at Moonnattumukku .............................................................................. 231

8. WATER QUALITY (APRIL) DATA-2019 ....................................................................... 235

9. RURAL WATER SUPPLY SCHEMES QUALITY of SoURCE WATER ............................249

10. GENERAL EVALUATIoN oN WATER QUALITY 2019 ................................................. 270

11. AMBIENT AIR QUALITY DATA-2019 & TREND ANALYSIS 2010-2019 11.1 Thiruvananthapuram ............................................................................................... 27411.2 Kollam ...................................................................................................................... 28211.3 Pathanamthitta ........................................................................................................ 28611.4 Alappuzha ................................................................................................................ 29011.5 Kottayam .................................................................................................................. 29411.6 Idukki ........................................................................................................................ 29811.7 Ernakulam ................................................................................................................ 30011.8 Thrissur .................................................................................................................... 31611.9 Palakkad ................................................................................................................... 32011.10 Malappuram .......................................................................................................... 32211.11 Kozhikkode ............................................................................................................. 32411.12 Wayanad ................................................................................................................ 32811.13 Kannur .................................................................................................................... 33211.14 Kasaragod ............................................................................................................... 336

12. GENERAL EVALUATIoN oN AIR QUALITY 2019 ...................................................... 340

13. BoARD’S LABoRAToRIES ......................................................................................... 341

14. CoNCLUSIoN ........................................................................................................... 347

Annexure-I. National Water Quality Monitoring programme Network-2019 ................ 348

Annexure II. State Water Quality Monitoring programme Network-2019 ...................... 351

Annexure-III. Geographical Coordinates of River Stations (NWMP & SWMP) 2019 ...... 355

Annexure-IV. Water quality criteria (CPCB) ..................................................................... 361

Annexure-V. National Ambient Air Quality Standards (NAAQS) ...................................... 362

Annexure-VI. Parameters,Units and Methods ................................................................. 363

Annexure-VII. Abbreviations ............................................................................................ 364

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RiveR StationS

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1.1 Neyyar River

The Neyyar River originates from the Western Ghats at Agasythyakoodam. The river flows through Neyyattinkara Taluk and joins the Lakshadweep Sea at Poovar near Kovalam after travelling a distance of 56 km. Neyyar Irrigation Project is situated in this river. Two stations functioning in this river are Amaravila (Amaravila bridge) on Thiruvananthapuram-Kanyakumari Highway (NH 47) and Aruvippuram (Aruvippuram bathing ghat).

2019 NEYYAR RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Aruvippuram2284 NWMP

Max 7.6 147 7.1 6.5 920 480

DMin 6.1 92 4.1 0.4 200 100

Mean 6.7 124 6.2 3.5 517 216

Std. Dev 0.4 18.06 0.9 2.2 209.47 148.54

Amaravila 1563 NWMP

Max 7.3 157 7.0 3.9 1500 600

CMin 6.0 80 3.6 0.1 400 100

Mean 6.7 118 5.9 1.6 836 256

Std. Dev 0.5 25.94 1.0 1.3 331.57 149.94

*See Annexure IV

2284 1563Pre-monsoon 6.7 6.6Monsoon 6.7 6.6Post-monsoon 6.7 6.9

6.456.5

6.556.6

6.656.7

6.756.8

6.856.9

6.95

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pH

2284 1563Pre-monsoon 139 131Monsoon 113 97Post-monsoon 112 123

020406080

100120140160

Var

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EC

Electrical Conductivity, µmhos/cm

2284 1563Pre-monsoon 6.2 5.3Monsoon 6.2 6.4Post-monsoon 6.3 6.4

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2284 1563Pre-monsoon 5.1 0.9Monsoon 3.2 2.6Post-monsoon 1.3 1.6

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Biological oxygen Demand, mg/l

2284 1563Pre-monsoon 556 760Monsoon 458 955Post-monsoon 530 803

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Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.2 Mamom River

The Mamom River originates from Panthalakuttu Hills at Vembayam. It flows through Attingal town and joins Anchuthengu kayal at Chirayinkeezhu after travelling a distance of 27 km. Sampling station of this river is located at Mamom Bridge on Thiruvananthapuram-Kollam National Highway.

2019 MAMOM RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Mamom2285 NWMP

Max 7.8 189 7.4 4.6 2500 910

CMin 6.1 102 4.1 0.5 200 100

Mean 6.7 140 5.6 2.7 1220 502

Std. Dev 0.4 29.39 1.1 1.4 763.06 332.73

*See Annexure IV

2285Pre-monsoon 6.9Monsoon 6.6Post-monsoon 6.5

6.3

6.4

6.5

6.6

6.7

6.8

6.9

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pH

2285Pre-monsoon 133Monsoon 125Post-monsoon 174

020406080

100120140160180200

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Electrical Conductivity, µmhos/cm

2285Pre-monsoon 5.6Monsoon 5.3Post-monsoon 6.1

4.85.05.25.45.65.86.06.2

Var

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Dissolved oxygen, mg/l

2285Pre-monsoon 3.8Monsoon 2.4Post-monsoon 1.6

0.00.51.01.52.02.53.03.54.0

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Biological oxygen Demand, mg/l

2285Pre-monsoon 1780Monsoon 935Post-monsoon 667

0200400600800

100012001400160018002000

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TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.3 Ayroor River

The Ayroor River originates from Navayikulam and culminates at Edava-Nadayara kayal after travelling a distance of 17 km. Important town located nearby this river is Varkala. The sampling location is at Ayroor Bridge in Elakamom panchayath

2019 AYROOR RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Ayroor2286 NWMP

Max 7.7 179 6.4 5.5 1200 310

CMin 5.9 100 1.5 1 310 100

Mean 6.7 141 5.0 2.9 807 199

Std. Dev 0.5 26.55 1.6 1.5 253.64 82.4

*See Annexure IV

2286Pre-monsoon 6.6Monsoon 6.8Post-monsoon 6.6

6.5

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6.7

6.7

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pH

2286Pre-monsoon 156Monsoon 131Post-monsoon 131

115120125130135140145150155160

Var

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Electrical Conductivity, µmhos/cm

2286Pre-monsoon 4.4Monsoon 4.8Post-monsoon 6.2

0.01.02.03.04.05.06.07.0

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2286Pre-monsoon 4.2Monsoon 1.5Post-monsoon 2.6

0.00.51.01.52.02.53.03.54.04.5

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Biological oxygen Demand, mg/l

2286Pre-monsoon 968Monsoon 608Post-monsoon 803

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Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.4 Karamana River

The Karamana River flows entirely through Thiruvananthapuram District. This River originates from the Western Ghats at Agasthyakoodam is the main water supply source of Thiruvananthapuram city and Nedumangad town. Two dams are constructed across this river at Peppara and Aruvikkara. Moonattumukku is located near the point where T.S. canal (Parvathy Puthanar) meets Karamana River. The major canals in Thiruvananthapuram city such as Vanchiyoor, Ulloor and Amayizhanjan empty into this canal. The main tributary of Karamana River is Killiyar which joins the river at Pallathukadavu. NWMP sampling stations are located at Aruvikkara and Moonattumukku and SWMP sampling stations include Peppara, Thiruvallom, Mangattukadavu and Pallathukadavu

2019 KARAMANA RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Peppara K1 SWMP

Max 7.4 94 7.9 5.5 500 200

BMin 6.1 14 4.5 0.8 100 80

Mean 6.7 64 6.1 2.5 283 107

Std. Dev 0.4 24.91 0.9 1.7 126.73 29.95

Aruvikkara3471 NWMP

Max 7.3 186 7.7 4.3 600 500

BMin 6.0 70 5.0 1.1 180 79

Mean 6.6 110 6.4 2.7 331 139

Std. Dev 0.4 30.43 0.7 1.1 144.75 117.63

MangattukadavuK2 SWMP

Max 7.7 135 6.9 4.9 2000 900

CMin 5.9 11 4.3 1.3 400 200

Mean 6.5 76 5.8 2.9 1233 408

Std. Dev 0.5 39.82 0.9 1.4 521.07 250.3

PallathukadavuK3 SWMP

Max 7.5 176 5.9 8.2 5000 3000

EMin 6.5 53 0.8 0.2 800 500

Mean 6.8 103 3.6 2.8 1558 867

Std. Dev 0.3 36.31 2.0 2.4 1157.16 697.18

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ThiruvallomK4 SWMP

Max 7.3 734 2.6 18.0 10000 4800

EMin 3.9 179 0.0 1.1 4000 600

Mean 6.5 322 1.1 8.1 5608 1942

Std. Dev 0.9 151.48 1.0 4.8 1856.42 1210.15

Moonnattumukku1155 NWMP

Max 7.2 935 2.8 10.2 410000 190000

EMin 6.4 405 0.1 2.9 8100 3100

Mean 6.7 592 1.0 6.3 58042 23217

Std. Dev 0.3 142.6 0.8 2.3 112243.3 52785.41

*See Annexure IV

K1 3471 K2 K3 K4 1155Pre-monsoon 6.5 6.3 6.4 6.7 6.6 6.6Monsoon 6.6 6.7 6.5 6.7 6.8 6.9Post-monsoon 7 6.9 6.7 6.9 5.7 6.6

012345678

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pH

K1 3471 K2 K3 K4 1155Pre-monsoon 70 110 91 100 298 621Monsoon 47 130 42 126 388 611Post-monsoon 78 81 79 77 272 518

0100200300400500600700

Var

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Electrical Conductivity, µmhos/cm

K1 3471 K2 K3 K4 1155Pre-monsoon 6 6.1 5.7 4.8 1.9 1Monsoon 5.7 6.3 5.6 1.8 1.1 1.7Post-monsoon 6.7 7 6.2 4.1 0 0.1

012345678

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Do

Dissolved oxygen, mg/l

K1 3471 K2 K3 K4 1155Pre-monsoon 2.2 2.3 2.8 3.6 8.4 7.4Monsoon 2.7 3.2 2.6 1.8 4.8 5.3Post-monsoon 2.8 2.4 3.6 2.7 11.8 5.9

02468

101214

Var

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on in

Bo

D

Biological oxygen Demand, mg/l

K1 3471 K2 K3 K4 1155Pre-monsoon 380 222 1600 2060 4420 116000Monsoon 200 413 875 1150 7825 20125Post-monsoon 233.3 403 1100 1266.7 4633.3 12000

020000400006000080000

100000120000140000

Var

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Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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The Ithikkara River originates from Ponmudi Hills in Thiruvanthapuram district. This river with a length of about 56 km flows through Kollam District and finally enters the Paravur Kayal. Ithikkara Village is located near the river stretch which is 15 km from Kollam and 2 km from Chathanoor. NWMP Sampling stations of Ithikkara River are located at Ithikkara (Ithikkara Bridge) and Ayoor and SWMP sampling stations include Kottuvamukku, Vellinalloor and Uppukadavu.

1.5 Ithikkara River

2019 ITHIKKARA RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

KottuvamukkuK5 SWMP

Max 7.9 220 7.6 2.3 680 210

BMin 6.8 99 5.8 0.8 280 90

Mean 7.4 140 6.8 1.4 407 148

Std. Dev 0.3 41 0.5 0.4 104.65 44.95

Ayoor 1564 NWMP

Max 7.6 130 6.9 2.1 410 210

BMin 7.0 118 6.0 1.2 170 70

Mean 7.2 125 6.5 1.7 278 127

Std. Dev 0.2 4.13 0.3 0.3 75.54 45.62

Vellinalloor K6 SWMP

Max 7.6 265 7.4 12.0 760 340

CMin 6.5 98 6.1 1.1 310 100

Mean 7.1 138 6.7 2.5 513 183

Std. Dev 0.3 48.93 0.4 3.0 143.93 76.55

Ithikkara 2287 NWMP

Max 7.8 9890 6.8 2.1 490 280

Below EMin 6.8 9140 5.9 1.4 260 91

Mean 7.4 9520 6.3 1.7 377 167

Std. Dev 0.3 312.56 0.3 0.2 85.53 61.58

UppukadavuK7 SWMP

Max 8.1 8760 6.9 2.2 810 320

BelowE Min 6.8 1540 5.2 1.0 310 100

Mean 7.2 4257 6.1 1.7 575 198

Std. Dev 0.3 2412.17 0.6 0.4 168.33 78.18

*See Annexure IV

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K5 1564 K6 2287 K7Pre-monsoon 7.2 7.3 7.2 7.2 7.2Monsoon 7.5 7.2 7.0 7.4 7.1Post-monsoon 7.7 7.2 7.2 7.5 7.5

6.46.66.87.07.27.47.67.8

Var

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pH

K5 1564 K6 2287 K7Pre-monsoon 6.6 6.4 6.4 6.2 5.7Monsoon 7.2 6.5 7.0 6.2 6.3Post-monsoon 6.7 6.8 6.6 6.7 6.5

0.01.02.03.04.05.06.07.08.0

Var

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Dissolved oxygen, mg/l

K5 1564 K6 2287 K7Pre-monsoon 112 124 116 9861 5771Monsoon 148 128 153 9355 4021Post-monsoon 176 122 157 9169 2047

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K5 1564 K6 2287 K7Pre-monsoon 1.5 1.8 1.4 1.9 1.2Monsoon 1.3 1.8 4.3 1.5 1.9Post-monsoon 1.5 1.3 1.9 1.7 2.0

0.00.51.01.52.02.53.03.54.04.55.0

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Bo

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Biological oxygen Demand, mg/l

K5 1564 K6 2287 K7Pre-monsoon 340 330 552 448 690Monsoon 490 283 588 373 448Post-monsoon 407 187 350 263 553

0100200300400500600700800

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TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.6 Vamanapuram River

The Vamanapuram River originates from Chemunjimotta Hills in the Western Ghats. It flows through Vamanapuram Village and finally ends at Anchuthengu after flowing a distance of 88 km. Vamanapuram River is the major drinking water source of Vamanapuram Village. The sampling station is located at Vamanapuram bridge on the MC Road.

2019 VAMANAPURAM RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Vamanapuram1442 NWMP

Max 7.8 223 7.4 6.3 2600 940

CMin 6.2 75 3.1 0.4 400 100

Mean 6.7 143 5.6 2.8 1211 376

Std. Dev 0.4 52.26 1.2 1.6 730.71 299.35

*See Annexure- IV

1442Pre-monsoon 6.6Monsoon 7.0Post-monsoon 6.7

6.46.56.66.76.86.97.07.1

Var

iati

on

in

pH

pH

1442Pre-monsoon 190Monsoon 98Post-monsoon 125

020406080

100120140160180200

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

1442Pre-monsoon 4.6Monsoon 6.0Post-monsoon 6.5

0.01.02.03.04.05.06.07.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

1442Pre-monsoon 2.5Monsoon 3.7Post-monsoon 2.0

0.00.51.01.52.02.53.03.54.0

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

1442Pre-monsoon 1738Monsoon 880Post-monsoon 773

0200400600800

100012001400160018002000

Var

iati

on

in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.7 Pallickal River

The Pallickal River, having a length of about 42 km, flows through Kollam District. The NWMP station is located at Nellimugal. The nearest town is Karunagappally. Selected SWMP stations are Adoor and Thodiyoor.

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Kerala State Pollution Control Board

2019 PALLICKAL RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Nellimugal2288 NWMP

Max 7.2 132 7.1 2.2 480 260

BMin 6.5 83 6.0 1.2 100 60

Mean 6.8 122 6.5 1.8 333 158

Std. Dev 0.2 12.68 0.4 0.3 99.12 62.06

AdoorK8 SWMP

Max 7.6 218 7.3 1.7 760 300

CMin 6.4 98 5.4 0.9 290 100

Mean 7.0 146 6.6 1.4 575 163

Std. Dev 0.3 32.61 0.6 0.2 136.15 57.1

ThodiyoorK9 SWMP

Max 7.5 198 6.7 2.0 960 230

CMin 6.8 110 5.1 1.1 290 70

Mean 7.2 144 5.7 1.6 619 155

Std. Dev 0.2 23.37 0.5 0.3 209.65 46.02

*See Annexure IV

2288 K8 K9Pre-monsoon 6.7 7.2 7.2Monsoon 6.8 6.8 7.2Post-monsoon 7.1 7.1 7.3

6.36.46.56.66.76.86.97.07.17.27.37.4

Varia

tion

in p

H

pH

2288 K8 K9Pre-monsoon 6.2 6.0 5.8Monsoon 6.6 7.2 5.5Post-monsoon 7 6.9 5.6

0.01.02.03.04.05.06.07.08.0

Varia

tion

in D

o

Dissolved oxygen, mg/l

2288 K8 K9Pre-monsoon 116 147 139Monsoon 128 149 144Post-monsoon 124 141 152

020406080

100120140160

Varia

tion

in E

C

Electrical Conductivity, µmhos/cm

2288 K8 K9Pre-monsoon 2.0 1.4 1.4Monsoon 1.8 1.4 1.8Post-monsoon 1.4 1.5 1.8

0.0

0.5

1.0

1.5

2.0

2.5

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

2288 K8 K9Pre-monsoon 360 542 582Monsoon 345 685 842.5Post-monsoon 273 483 383

0100200300400500600700800900

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.8 Achenkovil River

The Achenkovil River is formed by the confluence of Kallar and several small streams originating from the Western Ghats. It is flowing through Kollam, Pathanamthitta and Alappuzha districts. The river travels a distance of nearly 128 km and finally joins the Pamba river at Veeyupuram village near Mavelikkara (Alappuzha District). The NWMP sampling stations are located at Kallarakadavu, Thumpamon, Pandalam and Chennithala. SWMP stations include Aruvapulam, Konni, Kumpazha, Pandalam, Pallipad.

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2019 ACHENKOVIL RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

AruvapulamK10 SWMP

Max 7.7 139 7.5 1.9 600 280

BMin 6.6 61 6.2 0.5 380 110

Mean 7.2 97 6.8 1.5 500 170

Std. Dev 0.3 25.25 0.4 0.4 83.5 60.9

KonniK11 SWMP

Max 7.6 130 7.4 1.7 690 480

BMin 6.7 66 4.6 0.9 320 90

Mean 7.2 94 6.5 1.3 763 152

Std. Dev 0.3 23.27 0.9 0.3 100.37 107.01

KumpazhaK12 SWMP

Max 7.8 137 7.1 2.2 720 510

BMin 6.5 47 5.4 0.8 290 110

Mean 7.3 99 6.6 1.6 500 180

Std. Dev 0.4 29.7 0.5 0.5 129.16 111.03

Kallarakadavu3465 NWMP

Max 7.3 128 7.4 2.8 630 480

BMin 6.0 102 6.0 1.6 310 130

Mean 6.9 118 6.7 1.9 400 23

Std. Dev 0.4 6.26 0.5 0.3 90.75 97.53

Thumpamon 1342 NWMP

Max 7.3 134 6.5 2.4 480 280

BMin 6.5 114 5.3 1.6 170 70

Mean 6.9 125 5.9 2.0 318 162

Std. Dev 0.3 5.56 0.4 0.2 110.44 67.95

Pandalam3466 NWMP

Max 7.4 124 7.2 2.4 630 410

BMin 6.5 102 5.4 1.6 260 130

Mean 7.1 119 6.3 1.9 464 265

Std. Dev 0.3 6.46 0.6 0.2 125.8 98.12

Pallipad K13 SWMP

Max 8.2 153 6.8 2.3 950 240

BMin 6.8 49 4.8 0.9 320 100

Mean 7.5 116 5.8 1.7 488 158

Std. Dev 0.4 31.76 0.7 0.4 161.46 49.01

Chennithala1443 NWMP

Max 7.1 132 6.3 2.6 540 320

BMin 6.0 116 5.1 1.6 220 100

Mean 6.7 124 5.6 2.1 379 211

Std. Dev 0.3 5.18 0.4 0.3 90.9 78.33

*See Annexure IV

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K10 K11 K12 3465 1342 3466 K13 1443Pre-monsoon 7.3 7.1 7.3 6.8 6.9 6.9 7.8 6.5Monsoon 7.2 7.4 7.3 6.9 6.9 7.2 7.0 6.7Post-monsoon 7.1 7.2 7.4 7.2 7.1 7.4 7.7 7.0

5.86.06.26.46.66.87.07.27.47.67.88.0

Var

iati

on in

pH

pH

K10 K11 K12 3465 1342 3466 k13 1443Pre-monsoon 7.1 6.2 6.4 6.3 5.6 5.8 5.1 5.3Monsoon 6.7 6.5 6.6 6.9 5.8 6.5 6.0 5.6Post-monsoon 6.5 7.1 6.7 7.3 6.4 7.1 6.7 6.2

0.01.02.03.04.05.06.07.08.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

K10 K11 K12 3465 1342 3466 k13 1443Pre-monsoon 86 81 90 118 126 116 123 122Monsoon 88 83 82 120 127 120 85 128Post-monsoon 126 129 136 117 121 123 145 120

020406080

100120140160

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

K10 K11 K12 3465 1342 3466 k13 1443Pre-monsoon 1.1 1.1 1.3 2.0 2.2 2.1 1.4 2.0Monsoon 1.7 1.4 1.6 2.1 1.8 1.9 2.0 2.2Post-monsoon 1.8 1.6 2.2 1.7 1.8 1.8 2.0 2.2

0.0

0.5

1.0

1.5

2.0

2.5

Var

iati

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Bo

D

Biological oxygen Demand,mg/l

K10 K11 K12 3465 1342 3466 k13 1443Pre-monsoon 452 484 442 414 396 588 442 430Monsoon 545 443 495 435 323 420 533 398Post-monsoon 523 453 607 330 183 317 507 270

0100200300400500600700

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.9 Kallada River

The Kallada River originates from the Kulathuppuzha section of Western Ghats and merges with Ashtamudi Lake. It flows entirely through Kollam district. Perumthottamkadavu is the only NWMP station selected in this river which is near Punalur Paper Mills, Punalur. The major utility of this river is for irrigation. The SWMP sampling stations located are Kannamkottukadavu, Urukunnu, Punalur, Pathanapuram and Enath.

2019 Kallada River

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Urukunnu K14 SWMP

Max 7.8 266 7.2 1.7 770 270

CMin 6.8 51 6.1 1.3 310 110

Mean 7.2 115 6.5 1.5 518 183

Std. Dev 0.3 69.34 0.4 0.1 147.59 52.45

Punalur K15 SWMP

Max 7.5 175 7.1 2.0 870 310

CMin 6.8 65 6.1 1.2 310 100

Mean 7.1 106 6.8 1.5 514 178

Std. Dev 0.3 34.62 0.3 0.2 171.28 61.18

Perumthottakadavu 0042 NWMP

Max 7.4 118 7.1 2.1 470 280

BMin 6.5 104 6.2 1.2 210 82

Mean 7.0 114 6.7 1.6 328 181

Std. Dev 0.3 4.13 0.3 0.3 83.1 67.75

Pathanapuram K16 SWMP

Max 7.6 112 7.3 1.9 660 210

BMin 6.9 68 6.1 0.9 360 110

Mean 7.3 90 6.6 1.5 483 138

Std. Dev 0.3 13.81 0.4 0.3 102.01 37.2

Enathu K17 SWMP

Max 7.6 112 7.3 2.2 820 230

BMin 6.8 66 5.3 1.3 110 80

Mean 7.2 87 6.7 1.6 432 154

Std. Dev 0.3 12.33 0.6 0.2 176.73 52.82

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Kannankottukadavu K18 SWMP

Max 7.8 14320 7.1 2.7 820 240

EMin 6.4 7678 5.2 1.6 270 80

Mean 7.2 10665 6.4 2.2 452 141

Std. Dev 0.4 2438.75 0.5 0.4 157.28 53.36

*See Annexure IV

K14 K15 42 K16 K17 K18Pre-monsoon 7.1 7.1 6.9 7.2 7.0 7.3Monsoon 7.3 6.9 7.0 7.3 7.3 7.4Post-monsoon 7.4 7.0 7.3 7.6 7.3 6.9

6.46.66.87.07.27.47.67.8

Var

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pH

pH

K14 K15 42 k16 k17 k18Pre-monsoon 6.7 6.5 6.5 6.9 6.2 6.1Monsoon 6.4 7.0 6.8 6.6 7.2 6.5Post-monsoon 6.4 6.8 7.0 6.2 7.0 6.5

5.65.86.06.26.46.66.87.07.27.4

Var

iati

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Do

Dissolved oxygen, mg/l

K14 K15 42 K16 K17 K18Pre-monsoon 69 78 112 76 78 13294Monsoon 99 104 115 99 91 8790Post-monsoon 213 154 116 101 99 8782

02000400060008000

100001200014000

Vra

iati

on in

EC

Electrical Conductivity, µmhos/cm

K14 K15 42 K16 K17 K18Pre-monsoon 1.5 1.7 1.8 1.4 1.6 2.1Monsoon 1.4 1.3 1.6 1.7 1.7 2.1Post-monsoon 1.6 1.5 1.3 1.4 1.5 2.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

K14 K15 42 K16 K17 K18Pre-monsoon 442 454 394 444 388 470Monsoon 475 668 325 533 548 450Post-monsoon 700 410 223 483 350 427

0100200300400500600700800

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.10 Pamba River

The Pamba River originates from the Pulachi Malai Hills of the Peerumedu Plateau in the Western Ghats. It flows through Ranni, Pathanamthitta, Thiruvalla, Chenganoor, Kuttanadu, Ambalappuzha and finally reaches Vembanadu lake. The NWMP river stations are located at Pamba Down in Parumala, Chengannoor (Chengannoor Town) and Thakazhy (Near Thakazhy Bridge). SWMP sampling stations include Pulinkunnu, Edatua, Kozhencherry, Ranni, Athikayam, Vadasserikkara, Pamba U/S, Kakkiyar, Kochupamba, Njunagar.

2019 PAMBA RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Kochupampa K19 SWMP

Max 7.5 85 7.8 1.9 9000 7500

CMin 6.3 33 5.9 0.5 980 680

Mean 6.9 49 7.1 0.9 1792 1476

Std. Dev 0.3 17.8 0.6 0.4 2285.6 1915.31

Kakkiyar K20 SWMP

Max 8.0 373 7.9 3.0 69000 37500

DMin 7.0 169 4.9 0.5 990 760

Mean 7.1 241 6.9 1.2 7012 4089

Std. Dev 0.4 75.73 0.9 0.7 19528.23 10532.9

Triveni Upstream K21 SWMP

Max 8.0 90 7.8 1.7 78000 42500

DMin 7.0 46 6.1 0.2 430 210

Mean 7.3 65 6.9 0.9 8136 4846

Std. Dev 0.3 13.94 0.5 0.5 22132.61 12094.22

Njunagar K22 SWMP

Max 7.1 374 7.6 11.8 82000 62500

DMin 6.4 40 1.2 0.7 1185 740

Mean 6.7 141 5.7 2.1 8703 6753

Std. Dev 0.3 113.88 1.8 3.1 23176.08 17685.05

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Kerala State Pollution Control Board

Pamba Down (Parumala)

1565NWMP

Max 6.9 88 6.6 3.9 660 460

BMin 6.3 56 2.1 0.5 270 140

Mean 6.6 69 5.2 1.5 465 253

Std. Dev 0.2 10.19 1.2 0.9 107.24 105.67

Vadasserikkara K23 SWMP

Max 7.4 55 8.4 1.3 1990 1870

CMin 6.3 30 6.5 0.4 800 620

Mean 6.9 40 7.4 0.8 1181 942

Std. Dev 0.3 8.43 0.6 0.3 363.2 364.61

Athikkayam K24 SWMP

Max 7.9 271 7.7 1.0 2090 1970

CMin 6.4 56 6.5 0.3 800 520

Mean 7.2 121 7.2 0.7 1151 919

Std. Dev 0.5 69.1 0.4 0.2 417.34 424.18

Ranni K25 SWMP

Max 7.8 85 8.1 1.6 1800 1540

CMin 6.6 33 6.1 0.3 900 700

Mean 7.0 47 7.0 0.8 1193 918

Std. Dev 0.3 16.84 0.7 0.5 292.96 241.78

Kozhencherry K26 SWMP

Max 7.5 77 8.0 1.0 1690 1500

CMin 6.4 28 6.0 0.3 640 470

Mean 6.9 44 7.1 0.5 953 758

Std. Dev 0.3 16.63 0.6 0.2 278.96 271.09

Chengannoor 1156 NWMP

Max 6.8 72 8.0 1.5 840 630

CMin 6.1 43 5.3 0.3 380 170

Mean 6.4 57 6.4 0.7 599 364

Std. Dev 1.8 10.18 0.8 0.3 135.27 157.91

Edatua K27 SWMP

Max 7.1 78 4.8 2.0 2350 1980

EMin 6.5 38 2.0 0.6 1000 760

Mean 6.7 61 3.8 1.3 1389 1101

Std. Dev 0.2 13.52 0.8 0.5 419.47 401.17

Thakazhi1341 NWMP

Max 7.0 100 5.8 2.5 540 380

CMin 6.1 68 3.1 0.8 220 110

Mean 6.5 86.3 4.2 0.9 410 213

Std. Dev 0.2 10.64 0.9 0.5 99.82 98.75

Pulinkunnu K28 SWMP

Max 7.2 105 7.0 1.7 2020 1850

CMin 6.3 26 0.9 0.3 788 590

Mean 6.8 66 5.3 0.8 1114 928

Std. Dev 0.3 29.26 1.7 0.5 432.88 441.23

*See Annexure IV

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K19 K20 K21 K22 1565 K23 K24 K25 K26 115

6 K27 1341 K28

Pre-monsoon 7.0 7.3 7.3 6.8 6.6 6.9 7.2 6.8 6.8 6.4 6.8 6.6 6.7Monsoon 7.0 6.9 7.1 6.6 6.6 7.1 7.2 7.0 7.0 6.4 6.7 6.6 7.0Post-monsoon 6.8 6.9 7.5 6.8 6.5 6.7 7.1 7.1 6.8 6.4 6.6 6.4 6.7

5.65.86.06.26.46.66.87.07.27.47.67.8

Var

iati

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in

pH

pH

K19 K20 K21 K22 1565 K23 K24 K25 K26 115

6 K27 1341 K28

Pre-monsoon 7.2 7.3 6.7 4.5 5.1 7.6 7.2 7.1 6.9 6.3 3.3 4.7 5.5Monsoon 7.3 7.2 7.4 7.2 5.6 7.7 7.3 7.3 7.6 6.7 4.2 4.1 4.7Post-monsoon 6.4 5.8 6.7 5.8 4.7 6.7 7.2 6.3 6.8 6.1 4.0 3.6 5.4

0.01.02.03.04.05.06.07.08.09.0

Var

iati

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in

Do

Dissolved oxygen, mg/l

K19 K20 K21 K22 1565 K23 K24 K25 K26 115

6 K27 1341 K28

Pre-monsoon 48 308 70 263 72 38 187 52 45 58 62 95 71Monsoon 37 187 54 53 61 38 71 38 35 49 54 77 43Post-monsoon 68 202 72 57 78 48 76 51 54 66 69 84 80

050

100150200250300350

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

K19 K20 K21 K22 1565 K23 K24 K25 K26 115

6 K27 1341 K28

Pre-monsoon 1.0 1.2 1.0 3.7 1.9 0.7 0.7 0.5 0.4 0.9 1.0 2.0 0.7Monsoon 0.7 0.9 0.7 0.9 1.1 0.6 0.6 0.7 0.5 0.5 1.2 1.8 0.6Post-monsoon 1.1 1.4 1.3 1.2 1.4 1.1 0.9 1.3 0.8 0.8 1.7 2.0 1.2

0.00.51.01.52.02.53.03.54.0

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

K19 K20 K21 K22 1565 K23 K24 K25 K26 115

6 K27 1341 K28

Pre-monsoon 2684 1472 1666 1761 498 1280 1382 1152 1010 636 1440 454 1122Monsoon 1013 1216 623 1229 363 913 878 1040 810 465 1105 305 858Post-monsoon 1343 1890 3933 3817 547 1373 1130 1467 1047 717 1683 477 1357

02000400060008000

100001200014000160001800020000

Var

iati

on

in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.11 Meenachil River

The Meenachil River originates from the Western Ghats and flows through Erattupettah, Palai, Kidangoor, Ettumanoor and Kottayam, where it divides into its tributaries before emptying into the Vembanadu Lake. The NWMP sampling station in this river is at Kidangoor which is near Palai town. SWMP Sampling stations include Theekoy, Bharanganam, Kadapattoor, Punnathara, Thazhathangadi, Kumarakom.

2019 MEENACHIL RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Theekoy K29 SWMP

Max 7.7 71 8.2 1.4 2900 1400

CMin 6.5 36 5.0 0.1 1000 500

Mean 7.1 48 7.0 0.5 1950 1046

Std. Dev 0.4 12.29 1.1 0.4 567.69 262.38

Bharanganam K30

SWMP

Max 7.6 105 8.0 1.0 4300 2400

CMin 6.4 38 6.2 0.2 1600 800

Mean 7.2 41 7.6 0.5 2667 1350

Std. Dev 0.4 25.89 0.6 0.2 846.47 487.11

CKadappattoor K31 SWMP

Max 7.6 154 8.7 0.8 3000 1400

Min 6.9 42 6.7 0.2 1200 600

Mean 7.3 46 7.4 0.5 1846 967

Std. Dev 0.2 36 0.6 0.2 512.33 241.52

Kidangoor 1339

NWMP

Max 7.9 103 7.7 0.9 4900 2800

CMin 6.8 44 6.0 0.2 700 310

Mean 7.5 70 7.0 0.5 2625 1418

Std. Dev 0.3 20.58 0.6 0.2 1157.09 668.41

Punnathara K32 SWMP

Max 7.7 108 8.1 1.1 4350 2100

CMin 6.8 44 6.4 0.1 700 500

Mean 7.4 49 7.3 0.6 2000 1050

Std. Dev 0.2 24.24 0.5 0.3 934.93 421.58

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Thazhathangadi K33 SWMP

Max 7.7 13240 7.8 0.8 4900 2450

CMin 5.7 43 3.8 0.2 900 350

Mean 7.2 2018 6.1 0.4 2338 1204

Std. Dev 0.5 4257.53 1.2 0.2 957.06 510.11

Kumarakam K34 SWMP

Max 7.6 22820 7.1 1.2 7000 3800

CMin 4.8 102 3.4 0.1 1200 650

Mean 6.7 287 4.8 0.7 3425 1838

Std. Dev 0.9 8703.64 1.3 0.3 1683.14 971.2

*See Annexure IV

K29 K30 K31 1339 K32 K33 K34Pre-monsoon 6.8 7.0 7.1 7.4 7.3 7.2 6.6Monsoon 7.1 7.1 7.4 7.5 7.3 6.9 6.3Post-monsoon 7.4 7.5 7.4 7.7 7.6 7.5 7.5

0.01.02.03.04.05.06.07.08.09.0

Var

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pH

pH

K29 K30 K31 1339 K32 K33 K34Pre-monsoon 6.4 7.0 7.5 6.7 7.5 6.6 5.9Monsoon 7.4 7.8 7.3 7.0 7.0 5.4 4.9Post-monsoon 7.5 7.5 7.4 7.3 7.4 6.3 4.5

0.01.02.03.04.05.06.07.08.09.0

Var

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Do

Dissolved oxygen, mg/l

K29 K30 K31 1339 K32 K33 K34Pre-monsoon 56 77 103 83 91 2111 6580Monsoon 43 55 54 69 63 3362 5979Post-monsoon 40 42 49 50 51 71 209

01000200030004000500060007000

Var

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EC

Electrical Conductivity, µmhos/cm

K29 K30 K31 1339 K32 K33 K34Pre-monsoon 0.5 0.6 0.7 0.6 0.4 0.5 0.5Monsoon 0.4 0.4 0.4 0.4 0.5 0.4 0.6Post-monsoon 0.8 0.7 0.5 0.4 0.6 0.4 0.7

0.00.10.20.30.40.50.60.70.80.9

Var

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Bo

D

Biological oxygen Demand, mg/l

K29 K30 K31 1339 K32 K33 K34Pre-monsoon 1780 2230 1620 2560 2310 1930 3220Monsoon 2350 3088 2088 2075 1750 2125 3200Post-monsoon 1700 2833 1900 3467 1817 3300 4067

0500

10001500200025003000350040004500

Var

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TC

Total Coliform,MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.12 Manimala River

The Manimala River originates from the Muthavara Hills near Peerumedu in Idukki district and has a length of about 92 km. It flows through Kottayam and Pathanamthitta districts and finally joins Pamba River at Muttar in Alappuzha. Erumeli, Manimala, Mundakkayam, Chambakkulam etc are the important towns on the banks of this river. The NWMP river stations are located at Thondara and Kallooppara. SWMP river stations are located at Thottabhagam, Mallappally, Valakkayam, Pazhayidam, Erumeli, Koottikkal, Yendhayar.

2019 MANIMALA RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Kallooppara1340 NWMP

Max 7.9 330 8.1 3.0 920 610

BMin 6.9 80 5.4 0.4 100 50

Mean 7.3 256 6.8 1.6 473 263

Std. Dev 0.3 67.32 0.8 0.8 268.75 179.05

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Thondara 1384 NWMP

Max 7.6 304 8.0 2.4 1200 790

CMin 6.8 84 5.8 0.3 200 100

Mean 7.2 248 6.7 1.6 673 383

Std. Dev 0.3 60.74 0.6 0.7 269.29 189.85

Yendhayar K35 SWMP

Max 7.6 73 8.6 3.2 1100 700

BMin 6.8 20 5.4 0.4 100 50

Mean 7.1 38 7.4 1.6 458 253

Std. Dev 0.2 17.73 1.1 0.9 391.87 231.18

Kottikkal K36 SWMP

Max 7.6 170 9.8 3.3 3500 2450

CMin 6.8 34 6.1 0.9 0 0

Mean 7.2 68 7.9 1.8 750 498

Std. Dev 0.3 44.96 0.9 0.9 932.74 672.57

Erumeli K37 SWMP

Max 7.4 116 9.6 3.0 1800 1300

CMin 6.8 35 7.2 0.4 200 100

Mean 7.1 60 8.3 1.8 967 597

Std. Dev 0.2 27.33 0.6 0.9 457.93 373.54

Pazhayidam K38 SWMP

Max 7.4 100 8.3 3.1 4800 3100

CMin 6.8 48 5.9 0.2 200 100

Mean 7.1 69 7.2 1.6 1883 1048

Std. Dev 0.2 19.77 0.7 0.9 1226.85 791.19

Valakkayam K39 SWMP

Max 7.5 111 8.3 7.4 6000 4200

CMin 6.9 56 6.8 0.1 200 50

Mean 7.2 74 7.6 2.2 1092 690

Std. Dev 0.2 19.74 0.5 2.0 1590.57 1141.57

Manimala K40 SWMP

Max 7.5 110 8.9 3.2 1200 830

CMin 6.8 60 6.4 0.5 100 50

Mean 7.1 75 7.6 1.7 692 362

Std. Dev 0.2 17.75 0.6 0.9 387.2 267.51

Mallappally K41 SWMP

Max 7.3 138 8.1 3.1 6100 4300

CMin 6.8 43 6.4 0.1 200 100

Mean 7.0 71 7.3 1.6 2117 1386

Std. Dev 0.2 29.72 0.5 1.0 2402.97 1671.73

Thottabhagam K42 SWMP

Max 7.5 120 7.9 3.0 1000 400

CMin 6.5 52 5.2 0.3 200 100

Mean 7.0 71 7.0 1.4 517 231

Std. Dev 0.2 23.45 1.0 0.9 269.12 113.28

*See Annexure IV

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1340 1384 K35 K36 K37 K38 K39 K40 K41 K42Pre-monsoon 7.5 7.3 7.1 7.2 7.1 7.1 7.2 7.1 7.1 7.0Monsoon 7.3 7.3 7.2 7.4 7.2 7.3 7.4 7.2 7.0 7.0Post-monsoon 7.0 6.9 6.9 7.0 7.0 6.9 7.1 7.0 6.9 6.8

6.4

6.6

6.8

7.0

7.2

7.4

7.6

Var

iati

on

in

pH

pH

1340 1384 K35 K36 K37 K38 K39 K40 K41 K42Pre-monsoon 230 230 54 85 71 84 90 87 87 86Monsoon 297 281 30 67 57 63 68 69 62 58Post-monsoon 244 236 21 40 47 53 57 64 56 65

050

100150200250300350

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

1340 1384 K35 K36 K37 K38 K39 K40 K41 K42Pre-monsoon 6.2 6.6 6.5 7.5 8.3 6.6 7.5 7.4 7.3 6.2Monsoon 7.0 6.3 7.9 8.3 8.2 7.6 7.4 7.9 7.1 7.4Post-monsoon 7.4 7.5 8.3 8.0 8.3 7.6 8.2 7.6 7.6 7.7

0.01.02.03.04.05.06.07.08.09.0

Var

iaat

ion

in

Do

Dissolved oxygen, mg/l

1340 1384 K35 K36 K37 K38 K39 K40 K41 K42Pre-monsoon 1.9 1.9 2.4 2.6 2.7 2.4 2.8 2.6 2.4 2.2Monsoon 1.3 1.6 1.0 1.2 1.3 1.4 0.9 1.1 0.9 0.8Post-monsoon 1.4 0.9 1.3 1.4 0.8 0.5 2.9 0.8 1.0 0.9

0.00.51.01.52.02.53.03.5

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

1340 1384 K35 K36 K37 K38 K39 K40 K41 K42Pre-monsoon 556 720 320 1280 1340 940 1680 400 4460 620Monsoon 480 723 575 325 775 3100 550 900 300 350Post-monsoon 327 530 533 433 600 1833 833 900 633 567

0500

100015002000250030003500400045005000

Var

iati

on

in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.13 Periyar River

The Periyar River is the longest river in Kerala. It originates from the Sivagiri hills of the Western Ghats. It has a length of 244 km. Major hydroelectric projects of Kerala which are Pallivasal, Chengulam, Idukki, Panniyar, Neriyamangalam, Edamalayar, Lower Periyar etc. are located in this river. The river bifurcates at Alwaye as Mangalapuzha branch and Marthandavarma branch. Several major, minor and small scale industries are located on the banks of these two branches. Periyar River is the main drinking water source of Cochin Corporation, Aluva and Paravur towns and a lot of Panchayaths like Kadamakudy, Puthencruz etc.The sampling stations of Periyar are located in the upper, middle and lower stretches. The sampling stations are at Eloor, Kalady, KWA water intake at Aluva, Sewage discharge point at Aluva, Pathalam, Kalamassery, Purappillikkadavu and Muppathadam.

2019 PERIYAR RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Kalady0018 NWMP

Max 7.6 56 8.2 2.6 7000 3800

CMin 6.6 32 4.0 0.5 460 170

Mean 7.1 42 6.7 1.1 2683 1477

Std. Dev 0.3 7.49 1.3 0.6 2267.11 1345.43

KWA Aluva 3468 NWMP

Max 7.5 64 8.8 2.7 5400 3500

CMin 6.5 30 5.3 0.3 14 10

Mean 7.0 47 6.7 1.1 1395 756

Std. Dev 0.3 8.5 1.0 0.7 1573.61 1041.35

SDP Aluva1338 NWMP

Max 7.3 78 7.7 2.1 7900 7000

CMin 4.1 38 4.8 0.4 1200 580

Mean 6.7 54 6.2 1.4 4417 2307

Std. Dev 0.9 12.11 1.0 0.6 2237.63 1854.67

Muppathadam 2333 NWMP

Max 7.7 92 7.9 1.6 5400 3500

CMin 6.8 35 4.5 0.1 1100 240

Mean 7.2 58 5.8 0.9 2758 1202

Std. Dev 0.3 19.49 1.1 0.6 1231.75 894.77

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Eloor 0017 NWMP

Max 7.7 33000 9.6 2.8 43000 12000

EMin 6.6 90 4.4 0.3 400 170

Mean 7.2 12303 6.6 1.5 6369 2505

Std. Dev 0.4 14019.22 1.5 0.8 11692.56 3180.01

Pathalam 2334 NWMP

Max 7.2 29000 9.1 2.9 26000 4700

EMin 6.5 44 4.7 0.2 1400 400

Mean 6.9 7610 6.9 1.1 5683 2293

Std. Dev 0.2 9619.45 1.6 0.9 6734.69 1358.94

Purappillikadavu 2336 NWMP

Max 7.7 9600 7.2 2.8 7000 2700

EMin 6.7 49 5.3 0.1 110 40

Mean 7.2 3700 6.3 1.1 1439 591

Std. Dev 0.3 3321.74 0.6 0.9 1915.92 751.15

Kalamassery 2335 NWMP

Max 7.3 135 7.4 2.4 16000 4600

CMin 6.3 41 0.9 0.3 1700 350

Mean 7.0 77 4.8 1.1 4825 2286

Std. Dev 0.3 34.51 1.8 0.7 3694.01 1293.1

*See Annexure IV

18 3468 1338 2333 17 2334 2336 2335Pre-monsoon 7.1 7.0 6.8 7.5 7.3 6.9 7.3 7.0Monsoon 7.0 6.9 6.2 7.0 7.0 7.0 7.3 6.9Post-monsoon 7.1 7.0 7.0 7.1 7.1 6.9 7.1 6.9

0.01.02.03.04.05.06.07.08.0

Va

ria

tio

n i

n p

H

pH

18 3468 1338 2333 17 2334 2336 2335Pre-monsoon 38 47 59 67 27576 14968 7054 97Monsoon 48 48 57 56 1756 2848 1392 69Post-monsoon 40 45 42 45 911 1696 1188 54

05000

1000015000200002500030000

Va

ria

tio

n i

n E

C

Electrical Conductivity, µmhos/cm

18 3468 1338 2333 17 2334 2336 2335Pre-monsoon 6.9 6.3 5.7 6.1 7.0 6.7 6.2 4.1Monsoon 6.0 7.0 6.2 5.6 6.5 6.9 6.5 4.8Post-monsoon 7.3 7.1 7.1 5.6 6.1 7.1 6.2 5.9

0.01.02.03.04.05.06.07.08.0

Va

ria

tio

n i

n D

o

Dissolved oxygen,mg/l

18 3468 1338 2333 17 2334 2336 2335Pre-monsoon 1.1 0.7 1.1 1.2 1.0 1.3 0.7 1.7Monsoon 1.6 1.5 1.7 0.8 1.8 1.0 2.0 0.5Post-monsoon 0.6 1.2 1.3 0.4 1.8 0.7 0.6 1.0

0.0

0.5

1.0

1.5

2.0

2.5

Va

ria

tio

n i

n B

oD

Biological oxygen Demand, mg/l

18 3468 1338 2333 17 2334 2336 2335Pre-monsoon 2478 518 2920 1820 2126 4260 818 6020Monsoon 3125 2608 6350 3500 4225 8550 2700 4175Post-monsoon 2433 1238 4333 3333 16300 4233 793 3700

02000400060008000

1000012000140001600018000

Va

ria

tio

n i

n T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.14 Muvattupuzha

The Muvattupuzha River is formed by the union of three rivers viz., Thodupuzha, Kaliyar and Kothamangalam at Moovattupuzha. Malankara dam is constructed across Thodupuzha River for irrigation purpose. This river finally joins the Vaikom lake and drains into the Lakshadweep Sea. The NWMP station selected is at Vettikkattumukku. The nearby towns are Muvattupuzha and Piravom. SWMP stations include Malankara Dam, Muvattupuzha, Peruvamoozhy, Ramamangalam, Piravom, Murinjapuzha.

2019 MUVATTUPUZHA RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Malankara Dam K43 SWMP

Max 7.7 80 8.2 0.8 6000 3600

CMin 6.6 45 6.2 0.1 600 350

Mean 7.2 60 7.7 0.5 2667 1508

Std. Dev 0.3 11.73 0.6 0.3 1694.02 999.28

Muvattupuzha K44

SWMP

Max 7.3 76 7.9 0.6 5000 2700

CMin 6.5 49 6.3 0.1 1300 650

Mean 7.1 56 7.3 0.4 2717 1375

Std. Dev 0.3 9.82 0.5 0.2 1126.61 721.9

Peruvammoozhy K45 SWMP

Max 7.9 77 7.9 0.8 3400 2000

CMin 6.7 50 7.0 0.1 1150 600

Mean 7.4 62 7.5 0.4 2063 1208

Std. Dev 0.3 9.66 0.4 0.2 670.18 437.36

Ramamangalam K46 SWMP

Max 7.9 79 7.9 0.6 2650 1600

CMin 6.5 50 6.9 0.1 950 400

Mean 7.4 66 7.5 0.3 1767 917

Std. Dev 0.4 11.25 0.4 0.2 595.95 363.28

Piravom K47 SWMP

Max 7.9 107 7.9 0.6 4000 2100

CMin 6.8 52 6.6 0.1 1400 600

Mean 7.5 58 7.2 0.4 2417 1225

Std. Dev 0.3 14.74 0.5 0.1 804.34 422.39

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Vettikkattumukku 0043 NWMP

Max 7.9 86 7.8 0.8 4900 2700

CMin 6.9 54 5.7 0.2 2200 1100

Mean 7.5 70 6.9 0.5 3383 1808

Std. Dev 0.3 10.89 0.6 0.2 734.64 456.68

MurinjapuzhaK48 SWMP

Max 7.8 4154 8.0 1.1 6000 3200

CMin 6.3 70 5.4 0.3 1850 1200

Mean 7.4 1243 6.8 0.7 3808 2067

Std. Dev 0.4 1639.46 0.8 0.3 1403.38 634.73

*See Annexure IV

K43 K44 K45 K46 K47 43 K48Pre-monsoon 7.0 7.0 7.2 7.2 7.2 7.4 7.0Monsoon 7.4 7.0 7.6 7.6 7.6 7.6 7.7Post-monsoon 7.4 7.2 7.6 7.6 7.6 7.6 7.7

6.46.66.87.07.27.47.67.8

Varia

tion

in p

H

pH

K43 K44 K45 K46 K47 43 K48Pre-monsoon 7.9 7.6 7.6 7.6 7.4 7.3 7.0Monsoon 7.6 6.8 7.2 7.3 6.8 6.3 6.1Post-monsoon 7.4 7.5 7.6 7.5 7.4 7.1 7.2

0.01.02.03.04.05.06.07.08.09.0

Varia

tion

in D

o

Dissolved oxygen, mg/l

K43 K44 K45 K46 K47 43 K48Pre-monsoon 66 69 67 75 76 74 1758Monsoon 59 60 61 63 63 70 1178Post-monsoon 50 55 55 56 58 62 470

0200400600800

100012001400160018002000

Varia

tion

in E

C

Electrical Conductivity, µmhos/cm

K43 K44 K45 K46 K47 43 K48Pre-monsoon 0.6 0.5 0.5 0.4 0.4 0.6 0.7Monsoon 0.4 0.4 0.3 0.3 0.4 0.3 0.5Post-monsoon 0.5 0.3 0.3 0.3 0.3 0.7 0.9

0.00.10.20.30.40.50.60.70.80.91.0

Varia

tion

In B

oD

Biological oxygen Demand, mg/l

K43 K44 K45 K46 K47 43 K48Pre-monsoon 1360 2270 1630 1510 1920 3500 3830Monsoon 3700 2963 2250 2075 3250 3225 3088Post-monsoon 3467 3133 2533 1783 2133 3400 4733

0500

100015002000250030003500400045005000

Varia

tion

in T

C

Total Coliform,MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.15 Chalakudypuzha

Chalakudypuzha, the fifth longest river in Kerala has a total stretch of about 145 km. It originates from the Anamali and Nelliampathy ranges of the Western Ghats and flows westwards through the districts of Palakkad, Thrissur and Ernakulam. The major portion of this river flows through Thrissur district and finally joins the Periyar River near Paravur and drains into the Lakshadweep Sea. The NWMP sampling station located is at Pulickakadavu and the SWMP sampling locations are Peringalkuth Bridge, Vettilapara, Kanjirappilly, Chalakudy, Pulikkakadavu, Palapuzhakadavu.

2019 CHALAKUDY PUZHA

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Peringal Bridge K49 SWMP

Max 7.5 47 9.4 4.5 1000 800

BMin 6.2 29 7.2 0.6 100 52

Mean 6.6 41 8.0 1.7 367 190

Std. Dev 0.4 4.89 0.6 1.1 270.8 210.43

Vettilappara K50

SWMP

Max 7.6 51 13.8 6.7 400 200

BMin 6.2 35 7.5 0.4 100 20

Mean 6.9 42 8.7 2.0 208 88

Std. Dev 0.4 5.00 1.7 1.6 108.36 60.49

BKanjirapilly

K51 SWMP

Max 7.7 53 9.3 2.6 700 400

Min 5.9 31 6.6 0.3 100 68

Mean 6.7 45 8.2 1.5 342 206

Std. Dev 0.5 6.94 0.7 0.7 178.16 93.92

CChalakudy Bridge K52 SWMP

Max 7.2 60 9.3 2.5 2000 600

Min 6.1 33 6.6 0.5 100 100

Mean 6.6 49 7.9 1.6 583 217

Std. Dev 0.3 8.13 0.7 0.6 574.98 146.68

Pulikkakadavu K53 SWMP

Max 7.5 303 10.0 3.1 700 300

BMin 5.8 39 6.2 0.4 100 40

Mean 6.6 116 8.3 1.8 333 140

Std. Dev 0.4 103 1.2 0.8 182.57 78.14

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Pulickakadavu 1154 NWMP

Max 7.4 375 8.6 2.6 4700 2400

CMin 6.0 40 3.6 0.3 340 79

Mean 6.9 130 6.4 0.9 1555 696

Std. Dev 0.4 109.38 1.5 0.6 1131.34 592.68

PalapuzhakadavuK54 SWMP

Max 7.1 272 9.8 2.7 2000 500

BMin 6.1 37 6.6 0.7 100 48

Mean 6.5 127 8.1 1.6 442 158

Std. Dev 0.3 90.7 1.0 0.5 529.94 142.89

*See Annexure IV

K49 K50 K51 K52 K53 1154 K54Pre-monsoon 6.7 6.8 6.6 6.8 6.6 6.9 6.4Monsoon 6.4 6.6 6.5 6.3 6.2 6.8 6.3Post-monsoon 6.8 7.3 7.3 6.6 7.0 7.1 6.9

5.65.86.06.26.46.66.87.07.27.47.6

Var

iati

on in

pH

pH

K49 K50 K51 K52 K53 1154 K54Pre-monsoon 8.2 8.2 8.1 8.4 9.6 6.2 8.8Monsoon 7.9 8.2 8.0 7.8 7.2 6.0 7.6Post-monsoon 7.6 10.2 8.5 7.3 7.6 7.3 7.6

0.0

2.0

4.0

6.0

8.0

10.0

12.0

Var

iati

on in

Do

Dissolved oxygen ,mg/l

K49 K50 K51 K52 K53 1154 K54Pre-monsoon 42 44 51 54 207 217 195Monsoon 37 37 38 40 46 75 81Post-monsoon 45 45 43 55 57 59 74

0

50

100

150

200

250

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

K49 K50 K51 K52 K53 1154 K54Pre-monsoon 1.8 1.2 1.9 2.0 2.4 0.9 1.9Monsoon 1.1 1.8 0.9 1.3 1.1 1.1 1.4Post-monsoon 2.3 3.6 1.6 1.3 1.5 0.7 1.5

0.00.51.01.52.02.53.03.54.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

K49 K50 K51 K52 K53 1154 K54Pre-monsoon 380 220 460 880 320 884 700Monsoon 325 175 250 375 400 2435 300Post-monsoon 400 233 267 367 267 1500 200

0

500

1000

1500

2000

2500

3000

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.16 Karuvannur River

The Karuvannur River originates from the Manali Aar from the Vaniampara Hills. The Kurumali and Manali Aar join together and flow as Karuvannur River through 29 Grama Panchayats in Thrissur District and 2 in Palakkad District within the entire stretch of 48 km. Peechi and Cheemeni irrigation projects are situated in this river. The NWMP river station is located at Karuvannoor Bridge in Karuvannur town. SWMP sampling locations are Kainoorchira Bridge, Mupliyam, Palakadavu, Kottenkode, Karanchira.

2019 KARUVANNUR RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Kainoorchira Bridge K55 SWMP

Max 7.5 355 10 3.6 1300 400

BMin 5.6 61 5.4 0.8 100 60

Mean 6.5 107 7.2 2.0 458 186

Std. Dev 0.6 79.53 1.3 0.7 384.85 114.27

Mupliyam Bridge K56 SWMP

Max 7.3 395 9.2 2.6 2000 600

CMin 5.8 35 6.3 0.4 100 48

Mean 6.6 79 7.7 1.7 508 217

Std. Dev 0.5 100.41 0.9 0.6 499.92 183.98

Palakadavu K57 SWMP

Max 7.5 207 8.7 3.7 1200 800

BMin 5.6 41 5.9 1.0 200 80

Mean 6.5 69 7.2 2.0 417 226

Std. Dev 0.6 47.34 0.9 0.7 297.97 213.9

Karuvannur 2289 NWMP

Max 7.5 121 7.5 2.9 610 480

CMin 6.0 65 5.0 0.8 100 60

Mean 6.6 92 6.5 1.7 348 157

Std. Dev 0.5 18.94 0.8 0.6 180.81 121.16

Kottenkode K58 SWMP

Max 7.5 203 7.8 2.8 1000 600

BMin 6.5 44 5.5 0.5 100 20

Mean 6.7 84 6.5 1.8 392 187

Std. Dev 0.4 42.53 0.8 0.6 308.83 204.26

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Karanchira K59 SWMP

Max 7.2 204 7.9 2.5 2500 1200

CMin 6.1 54 5.5 1.3 100 40

Mean 6.6 94 6.7 2.0 533 246

Std. Dev 0.4 37.75 0.7 0.4 661.04 362.88

*See Annexure IV

K55 K56 K57 2289 K58 K59Pre-monsoon 6.5 6.6 6.6 6.5 6.6 6.6Monsoon 6.1 6.2 6.0 6.5 6.5 6.6Post-monsoon 7.0 7.0 7.0 6.9 7.0 6.9

5.45.65.86.06.26.46.66.87.07.2

Var

iati

on in

pH

pH

K55 K56 K57 2289 K58 K59Pre-monsoon 7.2 7.8 7.4 7.0 6.1 7.1Monsoon 6.8 7.9 6.6 6.0 7.1 6.4Post-monsoon 7.9 7.3 7.5 6.2 6.6 6.5

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

K55 K56 K57 2289 K58 K59Pre-monsoon 85 43 48 102 55 78Monsoon 155 136 105 89 112 116Post-monsoon 81 65 58 78 93 92

020406080

100120140160180

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

K55 K56 K57 2289 K58 K59Pre-monsoon 2.5 1.7 1.9 1.6 1.7 1.9Monsoon 1.9 1.7 1.6 1.4 1.8 1.8Post-monsoon 1.3 1.6 2.6 2.1 2.0 2.3

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

K55 K56 K57 2289 K58 K59Pre-monsoon 620 760 620 276 580 820Monsoon 275 350 275 395 200 375Post-monsoon 433 300 267 403 333 267

0100200300400500600700800900

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.17 Puzhakkal River

This river is originated by the union of several rivulets such as Parathode, Pumalathode, Meduthode and Katacharuthode and finally debouches into the Lakshadweep Sea. The sampling station is located at Puzhakkal Bridge.

2019 PUZHAKKAL RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Puzhakkal 2290 NWMP

Max 7.7 182 7.5 2.6 1000 400

BMin 5.8 85 5.0 1.0 100 55

Mean 6.7 128 5.8 1.7 449 163

Std. Dev 0.6 30.56 0.9 0.6 270.2 92.7

*See Annexure IV

2290Pre-monsoon 6.5Monsoon 6.7Post-monsoon 7.1

6.16.26.36.46.56.66.76.86.97.07.17.2

Var

iati

on

in

pH

pH

2290Pre-monsoon 139Monsoon 132Post-monsoon 104

020406080

100120140160

Var

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EC

Electrical Conductivity, µmhos/cm

2290Pre-monsoon 5.9Monsoon 6.3Post-monsoon 5.1

0.01.02.03.04.05.06.07.0

Var

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in

Do

Dissolved oxygen, mg/l

2290Pre-monsoon 1.9Monsoon 2.0Post-monsoon 1.2

0.0

0.5

1.0

1.5

2.0

2.5

Var

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in

Bo

D

Biological oxygen Demand, mg/l

2290Pre-monsoon 580Monsoon 355Post-monsoon 357

0100200300400500600700

Var

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in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.18 Keecheri River

The Keecheri River originates from the western cliffs of the Western Ghats in Thalapathi Taluk. The NWMP sampling station is located at Vadakkancherry in Thrissur District.

2019 KEECHERI RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Vadakkancherry 2291 NWMP

Max 7.8 195 7.1 2.8 790 480

BMin 6.0 88 4.9 0.9 200 100

Mean 6.6 129 6.1 2.0 424 190

Std. Dev 0.6 33.61 0.7 0.5 197.14 126.92

*See Annexure IV

2291Pre-monsoon 6.5Monsoon 6.5Post-monsoon 7.1

6.0

6.2

6.4

6.6

6.8

7.0

7.2

Var

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in

pH

pH

2291Pre-monsoon 152Monsoon 120Post-monsoon 105

020406080

100120140160

Var

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in

EC

Electrical Conductivity, µmhos/cm

2291Pre-monsoon 5.8Monsoon 6.5Post-monsoon 6.1

5.55.65.75.85.96.06.16.26.36.46.5

Var

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in

Do

Dissolved oxygen, mg/l

2291Pre-monsoon 2.1Monsoon 1.5Post-monsoon 2.4

0.0

0.5

1.0

1.5

2.0

2.5

Var

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in

Bo

D

Biological oxygen Demand, mg/l

2291Pre-monsoon 596Monsoon 300Post-monsoon 303

0100200300400500600700

Var

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in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.19 Bharathapuzha

The Bharathapuzha River ‘otherwise called Nila River’ is the second longest river in Kerala. It stretches a length of about 209 km and has its presence in three districts namely Palakkad, Malappuram and Thrissur. This river originates from the Anamalai Hills and empties into the Lakshadweep Sea at Ponnani. The NWMP sampling stations selected in this river are Pattambi (Pattambi Bridge) near Pattambi Town and Kuttippuram (Kuttippuram Bridge). SWMP sampling locations are at Arngottukulumb, Lakkidi, Mangalam, Naragampilly, Parali, Shornur, Thootha, Tripalur, Thavannoor, Nariparamba.

2019 BHARATHAPUZHA RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Naragampilly K60 SWMP

Max 8.2 1510 6.9 4.0 900 500

BMin 7.5 318 5.8 1.4 10 10

Mean 7.9 929 6.3 2.4 276 158

Std. Dev 0.3 403.55 0.4 1.1 360.28 231.86

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Arangottukulumbu K61 SWMP

Max 8.2 1566 7.8 29.6 1000 100

BMin 7.2 328 2.6 0.3 20 10

Mean 7.7 925 5.9 5.1 331 74

Std. Dev 0.3 417.42 1.4 9.3 381.23 39.75

Parali K62 SWMP

Max 8.4 1156 7.0 5.8 1000 800

BMin 6.7 241 5.1 1.1 20 10

Mean 7.4 492 6.1 2.6 261 216

Std. Dev 0.5 252.35 0.6 1.3 316.07 291.02

Thrippalur K63 SWMP

Max 8.0 580 7.8 4.8 3000 800

CMin 6.8 222 4.6 0.9 10 100

Mean 7.6 347 6.5 2.3 528 450

Std. Dev 0.4 108.33 0.9 1.4 1042.54 494.97

Mangalam K64 SWMP

Max 7.6 405 7.2 6.6 2300 1400

CMin 6.4 105 4.2 0.7 10 10

Mean 7.1 206 6.4 2.4 509 430

Std. Dev 0.4 111.94 0.8 1.8 780.7 593.13

Lakkidi K65 SWMP

Max 8.3 684 7.6 2.4 900 600

BMin 6.2 172 4.6 0.9 20 20

Mean 7.4 315 6.6 1.6 364 230

Std. Dev 0.5 135.42 0.9 0.5 306.44 254.17

Shornur K66 SWMP

Max 8.4 488 7.8 2.7 2000 1500

BMin 7.1 158 5.9 0.5 30 10

Mean 7.5 272 6.7 1.6 421 299

Std. Dev 0.4 84.16 0.5 0.7 542.8 539.92

Pattambi 2332 NWMP

Max 8.2 508 7.1 2.6 1300 1200

BMin 6.5 160 5.7 1.1 31 0

Mean 7.4 271 6.3 2.0 367 159

Std. Dev 0.5 89.36 0.4 0.5 372.5 341.64

Thootha K67 SWMP

Max 7.9 151 7.7 2.4 1200 700

BMin 6.7 56 6.4 0.3 20 20

Mean 7.3 95 7.0 1.2 350 239

Std. Dev 0.4 27.78 0.4 0.5 333.66 238.71

Kuttipuram 2331 NWMP

Max 8.2 360 7.2 2.9 840 260

BMin 6.0 96 5.3 0.8 31 2

Mean 7.3 186 6.5 1.8 328 102

Std. Dev 0.7 72.44 0.5 0.7 249.19 76.67

Thavannoor K68 SWMP

Max 8.0 310 8.8 6.3 68 28

BMin 6.7 102 4.0 0.8 4 4

Mean 7.4 218 7.0 2.9 26 15

Std. Dev 0.3 80.92 1.4 1.5 18.25 11.12

Nariparamba K69 SWMP

Max 8.5 311 8.6 5.3 74 32

BMin 6.8 95 5.6 0.8 8 8

Mean 7.4 220 7.4 2.8 29 16

Std. Dev 0.4 83.56 1.0 1.3 17.53 8.52

*See Annexure IV

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K60 K61 K62 K63 K64 K65 K66 2332 K67 233

1 K68 K69

Pre-monsoon 7.7 7.5 7.3 7.2 6.9 7.2 7.5 7.3 7.2 7.5 7.4 7.4Monsoon 8.2 7.7 7.2 7.6 7.1 7.4 7.4 7.4 7.2 7.2 7.3 7.3Post-monsoon 7.9 8.0 7.8 7.9 7.4 7.9 7.7 7.5 7.4 7.0 7.6 7.7

6.26.46.66.87.07.27.47.67.88.08.28.4

Var

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pH

pH

K60 K61 K62 K63 K64 K65 K66 2332 K67 233

1 K68 K69

Pre-monsoon 1183 1193 430 297 285 277 239 255 120 189 284 280Monsoon 442 429 377 307 185 239 234 220 80 122 146 158Post-monsoon 1163 1153 746 437 154 479 380 365 74 266 201 204

0200400600800

100012001400

Var

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EC

Electrical Conductivity, µmhos/100cm

K60 K61 K62 K63 K64 K65 K66 2332 K67 233

1 K68 K69

Pre-monsoon 6.5 5.1 6.2 7.1 6.8 7.2 7.1 6.5 7.3 6.9 7.0 7.7Monsoon 6.1 6.7 5.8 5.8 5.9 6.1 6.4 6.2 6.7 6.4 6.3 6.9Post-monsoon 6.1 6.0 6.1 6.7 6.7 6.3 6.3 6.0 6.9 6.2 8.1 7.7

0.01.02.03.04.05.06.07.08.09.0

Var

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Do

Dissolved oxygen, mg/l

K60 K61 K62 K63 K64 K65 K66 2332 K67 233

1 K68 K69

Pre-monsoon 3.2 12.4 3.1 2.7 4.2 1.6 1.6 2.1 1.6 2.1 3.2 3.5Monsoon 2.3 1.4 2.4 2.9 2.0 1.5 1.9 1.7 0.8 1.6 2.3 2.5Post-monsoon 1.8 1.4 1.8 1.2 1.1 1.6 1.2 2.0 1.1 1.6 3.1 1.9

0.02.04.06.08.0

10.012.014.0

Var

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Bo

D

Biological oxygen Demand, mg/l

K60 K61 K62 K63 K64 K65 K66 2332 K67 233

1 K68 K69

Pre-monsoon 180 360 207 25 10 340 308 224 206 284 17 25Monsoon 47 67 73 57 90 110 78 146 193 148 24 23Post-monsoon 600 567 567 1333 1233 733 1067 900 800 643 44 45

0200400600800

100012001400

Var

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TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.20 Kadalundi River

The Kadalundi River is formed by the union of tributaries Olipuzha and Veliyar which originate from Cherakombanmala and Erattukombanmala of the Silent Valley. It has a length of nearly 120 km and finally debouches into the Lakshadweep Sea. A famous bird sanctuary is located on the banks of Kadalundi River near Beypore port. The NWMP stations selected are Thiroorangadi and Hajiyarapilly. SWMP stations are located at Oravambrum, Anakkayam, Manikuth, Kooriyad.

2019 KADALUNDI RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Oravambrum K70 SWMP

Max 7.5 138 8.7 3.9 80 40

AMin 6.5 42 4.0 0.6 12 4

Mean 6.9 77 6.7 1.7 27 18

Std. Dev 0.3 31.68 1.6 0.9 19.91 12.4

Anakkayam K71 SWMP

Max 7.3 117 9.2 4.4 72 40

AMin 6.3 57 5.3 0.6 8 4

Mean 6.9 83 7.0 2.0 25 16

Std. Dev 0.4 22 1.2 1.3 16.37 11.91

Hajiyarappally 2293 NWMP

Max 7.6 140 8.3 2.1 61 40

AMin 6.5 60 4.6 0.6 20 4

Mean 7.1 100 6.7 1.3 36 19

Std. Dev 0.4 29.08 1.1 0.4 13.53 10.03

Manikuth K72 SWMP

Max 7.4 117 9.0 2.6 60 28

AMin 6.3 59 3.5 1.2 12 12

Mean 6.9 85 6.9 1.8 32 18

Std. Dev 0.4 17.06 1.5 0.6 14.28 7.02

Kooriyad K73 SWMP

Max 7.4 145 8.6 4.4 49 28

AMin 6.5 63 4.0 0.8 12 6

Mean 7.0 93 6.8 2.0 29 13

Std. Dev 0.3 27.72 1.4 1.0 12.66 9.07

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Thiroorangadi 1566 NWMP

Max 7.9 158 8.0 3.4 81 70

BMin 6.0 65 4.0 0.8 8 4

Mean 7.0 103 6.6 2.1 37 21

Std. Dev 0.5 28.11 1.0 0.9 26.34 20.11

*See Annexure IV

K70 K71 2293 K72 K73 1566Pre-monsoon 7.0 7.1 7.2 7.0 7.1 7.2Monsoon 6.8 6.8 7.1 6.8 6.9 7.0Post-monsoon 6.8 6.7 6.7 6.8 6.8 6.5

6.06.26.46.66.87.07.27.4

Var

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pH

pH

K70 K71 2293 K72 K73 1566Pre-monsoon 6.8 7.3 6.8 7.0 7.1 6.6Monsoon 6.4 6.6 6.5 6.4 6.2 6.2Post-monsoon 6.9 7.2 6.9 7.3 7.1 7.2

5.45.65.86.06.26.46.66.87.07.27.4

Var

iati

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Do

Dissolved oxygen, mg/l

K70 K71 2293 K72 K73 1566Pre-monsoon 105 97 124 97 108 123Monsoon 53 79 93 81 92 97Post-monsoon 55 64 72 69 70 78

020406080

100120140

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

K70 K71 2293 K72 K73 1566Pre-monsoon 1.6 2.4 1.4 2.0 2.7 2.5Monsoon 2.2 1.9 1.5 1.6 1.4 1.7Post-monsoon 1.5 1.5 0.9 1.7 1.7 1.9

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

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Bo

D

Biological oxygen Demand, mg/l

K70 K71 2293 K72 K73 1566Pre-monsoon 19 18 33 31 33 23Monsoon 39 21 37 35 16 39Post-monsoon 29 43 39 31 40 57

0

10

20

30

40

50

60

Var

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TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.21 Tirur River

The Tirur River originates from the Athavanad village and has a length of 48 km, joins Bharathapuzha at Ponnani and finally reaches the Lakshadweep Sea. The selected NWMP river station is at Thalakkadathur (Thalakkadathur Bridge) in Malappuram District. SWMP river stations include Mangatteri, Kooloopalam, Ezhur, Thazhepalam.

2019 TIRUR RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Kooloopalam K74 SWMP

Max 7.6 232 8.1 3.4 48 24

CMin 6.3 67 1.8 0.2 12 8

Mean 7.1 118 4.8 1.4 28 15

Std. Dev 0.5 65.04 2.1 1.0 13.86 6.66

Ezhur K75 SWMP

Max 7.5 203 6.6 4.3 48 18

CMin 6.5 71 3.8 0.8 20 8

Mean 6.7 124 4.6 1.8 29 13

Std. Dev 0.3 50.5 0.8 1.2 9.62 3.93

Thazhepalam K76 SWMP

Max 7.6 33090 8.6 3.4 80 40

Below EMin 5.8 109 2.3 0.4 16 8

Mean 6.8 11547 4.5 1.2 34 21

Std. Dev 0.5 13128.78 2.0 0.8 22.58 12.95

Thalakkadathur 2292 NWMP

Max 7.5 39650 6.7 3.2 63 48

Below EMin 6.0 74 2.1 0.8 17 8

Mean 6.7 10058 4.5 1.3 40 20

Std. Dev 0.5 14070.24 1.6 0.7 14.02 10.89

Mangattiri K77 SWMP

Max 8.0 37180 6.6 2.7 52 26

Below EMin 5.9 113 1.6 0.4 12 4

Mean 7.1 13831 4.4 1.3 27 15

Std. Dev 0.5 16905.08 1.5 0.8 10.83 7.89

*See Annexure IV

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K74 K75 K76 2292 K77Pre-monsoon 7.0 6.6 7.1 6.5 7.1Monsoon 7.1 7.0 6.8 6.8 6.8Post-monsoon 7.1 6.7 6.6 7.0 7.4

6.06.26.46.66.87.07.27.47.6

Var

iati

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in

pH

pH

K74 K75 K76 2292 K77Pre-monsoon 7.8 4.1 4.8 3.9 4.1Monsoon 4.6 5.1 4.4 5.0 4.4Post-monsoon 2.9 4.8 4.2 4.8 5.0

0.01.02.03.04.05.06.07.08.09.0

Var

iati

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in

Do

Dissolved oxygen, mg/l

K74 K75 K76 2292 K77Pre-monsoon 222 177 24410 21374 26500Monsoon 81 88 3953 3378 8133Post-monsoon 85 90 233 105 314

0

5000

10000

15000

20000

25000

30000

Var

iati

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in

EC

Electrical Conductivity,µmhos/cm

K74 K75 K76 2292 K77Pre-monsoon 1.9 2.0 1.2 1.3 1.6Monsoon 1.9 1.9 1.6 1.6 1.1Post-monsoon 0.6 1.2 0.6 1.1 1.1

0.0

0.5

1.0

1.5

2.0

2.5

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

K74 K75 K76 2292 K77Pre-monsoon 18 34 18 34 22Monsoon 33 29 53 38 34Post-monsoon 29 23 33 54 25

0

10

20

30

40

50

60

Var

iati

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in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.22 Chaliyar River

The Chaliyar River is the fourth longest river in Kerala. It has a length of about 169 km and flows through Malappuram and Kozhikode districts and finally joins the Lakshadweep Sea at Kozhikkode. It originates from the Western Ghats at Elambalan Hills located near Cherambadi Town in Nilgiri district of Tamilnadu. This river is a significant transportation route for raw materials of the wood industries located at Nilambur and Kallai areas. The selected NWMP River stations are at Nilambur (up stream station) Koolimadu and Chungapally (down stream station). SWMP stations arelocated at Mundayamthodu, Vadapuram, Kuruvanpuzha, Areakode and Feroke.

2019 CHALIYAR RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Nilambur 3464 NWMP

Max 8.1 160 8.2 1.9 6300 4900

CMin 6.1 28 6.0 0.0 260 150

Mean 7.1 78 7.4 0.7 2902 1972

Std. Dev 0.7 33.21 0.7 0.6 2445.7 1662.51

Kuruvanpuzha K78 SWMP

Max 8.3 116 9.4 2.3 4100 2500

CMin 6.1 20 4.8 0.1 280 120

Mean 7.0 47 7.4 1.1 1634 1123

Std. Dev 0.8 26.51 1.2 0.7 1176.83 844.86

Vadapuram K79 SWMP

Max 8.1 142 8.3 2.1 8000 5400

CMin 6.0 36 4.9 0.2 150 100

Mean 6.9 73 7.2 1.0 3495 2408

Std. Dev 0.7 29.21 0.9 0.6 2863.63 2098.39

Mundayamthodu K80 SWMP

Max 7.3 231 7.7 2.0 5300 4600

CMin 5.8 26 2.7 0.1 960 280

Mean 6.6 66 6.5 0.9 3279 2211

Std. Dev 0.5 63.84 1.6 0.7 1567.41 1510.01

Areacode K81 SWMP

Max 8.0 119 10.0 2.6 9800 5600

CMin 6.0 32 6.3 0.1 40 30

Mean 7.1 81 7.7 1.2 3812 1981

Std. Dev 0.7 29.71 0.9 0.8 3772.9 1921.65

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Koolimadu 0020 NWMP

Max 7.9 128 8.7 1.7 6300 5600

CMin 6.2 26 6.1 0.0 140 100

Mean 7.2 70 7.6 0.7 2391 1685

Std. Dev 0.6 28.14 0.8 0.6 2251.31 1718.94

Chungappally 0021 NWMP

Max 7.7 42100 9.2 1.5 7000 4600

EMin 6.1 34 5.1 0.0 81 60

Mean 7.2 12090 7.2 0.5 2904 1820

Std. Dev 0.6 16439.89 1.1 0.5 2709.57 1524.09

Feroke K82 SWMP

Max 8.0 50350 7.9 1.9 9200 7000

EMin 5.7 49 5.8 0.3 500 300

Mean 7.4 22346 6.8 1.1 3817 2225

Std. Dev 0.8 22490.63 0.7 0.6 3487.86 2043.23

*See Annexure IV

3464 K78 K79 K80 K81 20 21 K82Pre-monsoon 7.6 7.5 7.6 6.9 7.7 7.6 7.6 7.9Monsoon 6.4 6.2 6.2 6.0 6.3 6.6 6.7 6.5Post-monsoon 7.2 7.3 6.8 6.7 7.0 7.2 7.2 7.6

0123456789

Varia

tio in

pH

pH

3464 K78 K79 K80 K81 20 21 K82Pre-monsoon 7.5 6.8 6.9 4.7 7.8 7.5 6.4 6.4Monsoon 7.0 7.9 7.3 7.5 7.6 7.7 7.7 7.1Post-monsoon 7.9 7.8 7.4 7.3 7.7 7.6 8.1 7.3

0.01.02.03.04.05.06.07.08.09.0

Varia

tion

in D

o

Dissolved oxygen, mg/l

3464 K78 K79 K80 K81 20 21 K82Pre-monsoon 106 69 96 115 108 89 28910 43242Monsoon 52 32 59 47 58 55 83 11065Post-monsoon 66 30 53 36 67 59 64 2558

05000

100001500020000250003000035000400004500050000

Varia

tion

in E

CElectrical Conductivity, µmhos/cm

3464 K78 K79 K80 K81 20 21 K82Pre-monsoon 1.0 1.5 1.5 1.2 2.2 1.0 0.7 1.5Monsoon 0.3 0.9 0.8 0.8 0.8 0.4 0.5 0.9Post-monsoon 0.5 0.6 0.4 0.6 0.6 0.6 0.2 0.7

0.0

0.5

1.0

1.5

2.0

2.5

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

3464 K78 K79 K80 K81 20 21 K82Pre-monsoon 504 562 648 1370 748 418 1010 1360Monsoon 5250 2650 5800 3900 6925 4625 4925 6725Post-monsoon 3767 2067 5167 4567 4767 2700 3367 4033

010002000300040005000600070008000

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.23 Kabani River

The Kabani River, the main tributary of Cauvery River originates from the Pakramtalam Hills situated near Mananthavadi, Wayanad district and has a length of about 210 km. It flows eastward and joins the Cauvery River in Karnataka State. The Panamaram River joians Kabani at Payyampally. After traversing a distance of nearly 2 km from the confluence point, Kabani forms an island called Karuva spreading over 520 acres which is noted for its flora and fauna. The river station is located at Muthankara in Mananthavadi town.SWMP sampling locations include U/S of Panamaram (Neerattadi), D/S of Panamaram (Changadakadavu), At DTPC, At Forestkadavu, At Thonikadavu, U/S of Mananthavady and D/S of Mananthavady.

2019 KABANI RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Muthankara 1207

NWMP

Max 7.7 166 7.8 1.8 196 104

BMin 6.6 43 4.1 0.2 24 6

Mean 7.0 99 6.8 0.8 90 32

Std. Dev 0.4 39.97 1.0 0.5 57.64 27.58

U/S of Panamaram K83 SWMP

Max 7.8 178 8.0 1.8 160 52

BMin 6.7 33 4.2 0.1 30 4

Mean 7.3 95 6.6 0.9 80 28

Std. Dev 0.3 44.12 1.2 0.6 43.32 16.5

D/S of Panamaram K84 SWMP

Max 8.0 176 8.6 2.3 140 64

BMin 6.8 42 5.2 0.1 30 4

Mean 7.3 106 6.9 0.9 76 20

Std. Dev 0.4 40.31 1.1 0.7 34.82 18.94

At DTPC K85 SWMP

Max 7.5 167 7.9 1.9 160 126

BMin 6.5 42 4.3 0.3 44 14

Mean 7.1 103 6.8 0.8 93 40

Std. Dev 0.3 38.99 1.0 0.5 39.62 29.13

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At Forest kadavu K86 SWMP

Max 7.3 172 7.2 1.3 202 82

BMin 7.1 111 6.0 0.1 52 30

Mean 7.2 138 6.5 0.6 145 53

Std. Dev 0.1 31.21 0.6 0.6 81 26.63

At Thonikadavu K87 SWMP

Max 7.4 174 8.2 1.8 220 52

BMin 6.5 78 5.1 0.1 34 18

Mean 7.0 121 7.3 1.0 91 34

Std. Dev 0.2 27.49 0.9 0.6 56.96 11.31

U/S of Mananthavadi K88 SWMP

Max 7.9 204 8.6 2.3 184 50

BMin 6.7 32 2.6 0.1 10 0

Mean 7.2 90 6.2 0.8 91 30

Std. Dev 0.4 49.31 1.6 0.7 49.47 15.17

D/S of Mananthavadi K89 SWMP

Max 7.8 109 7.6 1.3 144 132

BMin 6.5 29 4.4 0.1 1 0

Mean 7.1 64 6.7 0.7 84 39

Std. Dev 0.4 23.17 1.1 0.4 39.08 35

*See Annexure IV

1207 K83 K84 K85 K87 K88 K89Pre-monsoon 7.1 7.3 7.1 7.2 7 7 7Monsoon 7.0 7.5 7.6 7.0 7 8 7Post-monsoon 6.9 7.2 7.2 7.0 7 7 7

6.26.46.66.87.07.27.47.67.8

Varia

tion

in p

H

pH

1207 K83 K84 K85 K87 K88 K89Pre-monsoon 6.5 6.8 7.3 6.7 7.3 6.8 6.7Monsoon 7.0 6.7 6.6 6.6 7.2 5.7 6.4Post-monsoon 6.9 6.3 6.5 7.1 7.4 6.1 7.1

0.01.02.03.04.05.06.07.08.0

Varia

tion

in D

o

Dissolved oxygen, mg/l

1207 K83 K84 K85 K87 K88 K89Pre-monsoon 132 133 137 137 143 82 79Monsoon 76 67 81 77 111 86 55Post-monsoon 75 70 88 80 98 110 49

020406080

100120140160

Varia

tion

in E

C

Electrical Conductivity, µmhos/cm

1207 K83 K84 K85 K87 K88 K89Pre-monsoon 1.1 1.0 1.1 1.1 1.3 0.8 0.8Monsoon 0.4 1.2 1.0 0.9 0.9 1.1 0.6Post-monsoon 0.7 0.2 0.4 0.4 0.6 0.4 0.8

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

1207 K83 K84 K85 K87 K88 K89Pre-monsoon 112 108 81 99 98 132 103Monsoon 76 49 92 82 93 71 81Post-monsoon 74 74 44 99 77 47 55

0

20

40

60

80

100

120

140

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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80

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1.24 Bhavani River

The Bhavani River has a length of the about 217 km. This river originates from the Nilgiri Hills of the Western Ghats at Mukkli in Kerala. It flows through Attappadi plateau for nearly 25 km stretch and through Coimbatore and Erode in Tamilnadu and merges with Cauvery River. It flows through three States- Kerala, Tamilnadu and Karnataka. The major portion of this river flows through Tamilnadu. The NWMP sampling station is located at Elachivazhi near Agali in Palakkad district and SWMP stations are Kottathara and Thavalam.

2019 BHAVANI RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml

CLASS*

Thavalam K90 SWMP

Max 8.1 108 8 2.9 2700 800

BMin 6.5 59 5.5 0.3 10 100

Mean 7.4 84 6.9 1.3 442 325

Std. Dev 0.5 16.87 0.7 1.0 856.82 320.16

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82

K90 K91 1208Pre-monsoon 7 7 8Monsoon 7 7 8Post-monsoon 8 8 8

77777888

Varia

tion

in p

H

pH

K90 K91 1208Pre-monsoon 6.3 6.7 7.0Monsoon 7.2 7.0 7.2Post-monsoon 7.4 7.2 7.5

5.65.86.06.26.46.66.87.07.27.47.6

Var

iati

on in

Do

Dissolved oxygen, mg/l

K90 K91 1208Pre-monsoon 94 276 258Monsoon 65 145 131Post-monsoon 92 161 159

0

50

100

150

200

250

300

Varia

tion

in E

C

Electrical Conductivity, µmhos/cm

K90 K91 1208Pre-monsoon 2.3 1.2 1.4Monsoon 0.7 1.2 0.8Post-monsoon 0.6 0.9 0.5

0.0

0.5

1.0

1.5

2.0

2.5

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

K90 K91 1208Pre-monsoon 140 150 77Monsoon 117 53 208Post-monsoon 1070 1267 1637

0200400600800

10001200140016001800

Varia

tion

in T

C

Total Coliform, MPN/100ml

Kottathara K91 SWMP

Max 8.1 371 7.8 2.6 2900 1700

BMin 7.1 58 4.1 0.1 10 10

Mean 7.6 204 6.9 1.1 446 340

Std. Dev 0.3 106.86 1.0 0.7 881.3 616.93

Elachivazhi1208 NWMP

Max 8.2 290 8.2 2.5 3800 2500

CMin 7.3 80 6.2 0.3 0 0

Mean 7.7 191 7.2 1.0 511 278

Std. Dev 0.3 81.78 0.6 0.7 1064.47 708.4

*See Annexure IV

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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84

1.25 Kuttiyadipuzha

This 74 km long river originates from Marikottai (Western Ghats). Oripuzha, Thottilpalam and Kannathil are the major tributaries of this river. A dam intented for power generation and agricultural purpose was built across this river. The NWMP river station selected is at Estatemukku. Nearest town is Kuttiyadi in Kozhikode district.

2019 KUTTIYADI RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Estatemukku 1567 NWMP

Max 7.7 44 9.9 1.5 1700 1400

CMin 6.2 24 6.8 0.0 70 50

Mean 6.9 29 8.5 0.7 518 379

Std. Dev 0.5 5.94 0.7 0.5 526.31 434.68

*See Annexure IV

1567Pre-monsoon 6.9Monsoon 7.1Post-monsoon 6.9

6.86.86.96.97.07.07.17.1

Var

iati

on in

pH

pH

1567Pre-monsoon 27Monsoon 31Post-monsoon 31

242526272829303132

Var

iati

on in

EC

Electrical onductivity, µmhos/cm

1567Pre-monsoon 8.1Monsoon 8.6Post-monsoon 9.1

7.47.67.88.08.28.48.68.89.09.2

Var

iati

on in

Do

Dissolved oxygen, mg/l

1567Pre-monsoon 0.7Monsoon 0.6Post-monsoon 0.8

0.00.10.20.30.40.50.60.70.80.9

Var

iati

n in

Bo

D

Biological oxygen Demand,mg/l

1567Pre-monsoon 159Monsoon 680Post-monsoon 900

0100200300400500600700800900

1000

Var

iati

on in

TC

Total Coliform,MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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86

1.26 Mahe River

The Mahe River otherwise named as Mayyazhipuzha originates from the western slopes of Wayanad hills (Western Ghats). It flows through a distance of 54 km and finally falls into the Lakshadweep sea at Mahi (Pondicherry). This river is mainly used for inland navigation. NWMP sampling station is located at Valayam in Kozhikode district.

2019 MAHE RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Valayam 1568 NWMP

Max 7.7 102 8.6 2.4 7000 3400

CMin 6.4 33 5.7 0.0 460 180

Mean 6.9 59 7.1 0.8 2425 1347

Std. Dev 0.4 22.97 0.8 0.8 2463.35 1278.82

*See Annexure IV

1568Pre-monsoon 7.1Monsoon 6.7Post-monsoon 6.8

6.56.66.76.86.97.07.17.2

Var

iati

on

in

pH

pH

1568Pre-monsoon 75Monsoon 51Post-monsoon 45

01020304050607080

Var

iati

on

in

EC

Electrical Conductivity,µmhos/cm

1568Pre-monsoon 6.7Monsoon 7.5Post-monsoon 7.2

6.26.46.66.87.07.27.47.6

Var

iati

on

in

Do

Dissolved oxygen, mg/l

1568Pre-monsoon 1.0Monsoon 0.3Post-monsoon 1.0

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

1568Pre-monsoon 744Monsoon 3695Post-monsoon 3533

0500

1000150020002500300035004000

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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88

1.27 Kallaipuzha

Kallai River originates from the Cherukulathur village in Kozhikode and joins at Arabian Sea after flowing through Kovoor, Olavanna and kallai. The sampling station is located at Kallai near Kozhikode town.

2019 KALLAI RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Kallai Bridge 2294 NWMP

Max 7.9 52300 5.8 4.6 28000 12800

Below EMin 7.0 126 2.1 0.2 400 200

Mean 7.5 31630 4.3 1.5 11833 5942

Std. Dev 0.3 15832.06 1.3 1.3 7954.34 3874.73

*See Annexure IV

2294Pre-monsoon 7.5Monsoon 7.8Post-monsoon 7.3

7.07.17.27.37.47.57.67.77.87.9

Var

iati

on in

pH

pH

2294Pre-monsoon 39272Monsoon 28934Post-monsoon 22489

05000

1000015000200002500030000350004000045000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2294Pre-monsoon 3.6Monsoon 5.1Post-monsoon 4.2

0.0

1.0

2.0

3.0

4.0

5.0

6.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

2294Pre-monsoon 1.4Monsoon 0.8Post-monsoon 2.8

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

2294Pre-monsoon 11760Monsoon 11450Post-monsoon 12467

10800110001120011400116001180012000122001240012600

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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90

90

1.28 Korapuzha River

This 40 km long river is formed by the confluence of Alakapuzha and Punnoorpuzha. It originates from the mountains of Wayanad district. It empties into the Lakshadweep Sea at Elattur. The NWMP river station is located at Kanayankode near Kozhikode. SWMP stations are located at Purakkattiri and Anaparakadavu.

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2019 KORAPUZHA RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Kanayankode 2295 NWMP

Max 7.9 33250 7.9 2.4 5000 4600

Below EMin 6.4 218 4.1 0.1 400 200

Mean 7.2 16123 5.9 0.9 1867 1319

Std. Dev 0.5 14739.06 1.0 0.8 1199.5 1126.95

Purakkattiri K92 SWMP

Max 7.7 41810 7.0 2.9 9000 7100

Below EMin 6.0 97 4.1 0.3 700 100

Mean 7.1 21875 5.8 1.3 2675 1883

Std. Dev 0.5 18096.19 0.9 0.7 2414.02 1911.13

Anapparakadavu K93 SWMP

Max 8.3 48290 8.2 5.4 13400 11000

Below EMin 6.9 298 4.9 0.3 500 300

Mean 7.6 31844 6.5 1.8 4158 3300

Std. Dev 0.4 16284.79 1.1 1.4 4744.85 3942.77

*See Annexure IV

2295 K92 K93Pre-monsoon 7.5 7.3 7.8Monsoon 6.9 7.1 7.4Post-monsoon 7.0 6.9 7.6

6.46.66.87.07.27.47.67.88.0

Varia

tin in

pH

pH

2295 K92 K93Pre-monsoon 5.9 5.4 6.3Monsoon 5.2 5.6 5.9Post-monsoon 6.7 6.7 7.6

0.01.02.03.04.05.06.07.08.0

Varia

tion

in D

o

Dissolved oxygen,mg/l

2295 K92 K93Pre-monsoon 30520 38692 45418Monsoon 8654 13795 26327Post-monsoon 2088 4620 16577

05000

100001500020000250003000035000400004500050000

Varia

tion

in E

C

Electrical Conductivity, µmhos/cm

2295 K92 K93Pre-monsoon 1.5 1.6 2.1Monsoon 0.2 1.5 2.0Post-monsoon 1.0 0.6 1.3

0.0

0.5

1.0

1.5

2.0

2.5

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

2295 K92 K93Pre-monsoon 1540 1300 2940Monsoon 2275 2900 5000Post-monsoon 1867 4667 5067

0

1000

2000

3000

4000

5000

6000

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.29 Kuppam River

This river originates from the Padinalkad Ghats reserve forest in the Coorg district of Karnataka. It has a length of about 83 km. It joins the River before emptying into the Lakshadweep Sea. The sampling stations selected are at Taliparamba in Kannur and Rayoram near Alakkode.

2019 KUPPAM RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Rayoram 2298 NWMP

Max 7.8 125 8 2.9 610 130

BMin 6.8 32 4.8 0.0 80 10

Mean 7.3 69 7.2 1.3 338 57

Std. Dev 0.3 27.11 0.9 95.0 179.28 36.43

Thaliparambu 1569 NWMP

Max 7.5 41800 8.2 2.8 790 120

Below EMin 6.2 64 4.9 0.3 49 10

Mean 7.0 17670 6.6 1.4 416 81

Std. Dev 0.4 18630.47 1.3 0.9 219.92 40.1

*See Annexure IV

2298 1569Pre-monsoon 7.6 7.2Monsoon 7.1 6.8Post-monsoon 7.2 6.8

6.26.46.66.87.07.27.47.67.8

Var

iati

on in

pH

pH

2298 1569Pre-monsoon 83 33540Monsoon 70 10633Post-monsoon 45 602

05000

10000150002000025000300003500040000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2298 1569Pre-monsoon 6.9 5.8Monsoon 7.2 7.1Post-monsoon 7.7 7.3

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on in

Do

Dissolved oxygen,mg/l

2298 1569Pre-monsoon 1.3 1.8Monsoon 1.2 0.9Post-monsoon 1.6 1.3

0.00.20.40.60.81.01.21.41.61.82.0

Var

iati

on in

Bo

D

Biological oxygen Demand,mg/l

2298 1569Pre-monsoon 336 368Monsoon 433 490Post-monsoon 217 396

0

100

200

300

400

500

600

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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94

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Kerala State Pollution Control Board

1.30 Thalassery River

The Thalasserry River otherwise named as Ponnayam River has a length of 28 km and originates from Kannoth reserve forests of the Western Ghats.It has its presence in the villages of Cheruvancheri, Mudiyanga, Pattyam, Mokeri and Pandakal before joining the Lakshadweep Sea. The selected NWMP river station is at Pathipalam near Thalassery town.

2019 THALASSERY RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Pathipalam 2296 NWMP

Max 7.4 122 8 2.1 740 150

BMin 6.2 56 1.3 0.3 100 10

Mean 6.6 88 5.3 1.0 390 71

Std. Dev 0.3 0.32 2.0 0.6 174.2 46.8

*See Annexure IV

2296Pre-monsoon 6.9Monsoon 6.4Post-monsoon 6.4

6.16.26.36.46.56.66.76.86.97.0

Var

iati

on

in

pH

pH

2296Pre-monsoon 105Monsoon 81Post-monsoon 70

0

20

40

60

80

100

120

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2296Pre-monsoon 4.3Monsoon 5.8Post-monsoon 6.4

0.01.02.03.04.05.06.07.0

Var

iati

on in

Do

Dissolved oxygen,mg/l

2296Pre-monsoon 0.8Monsoon 1.0Post-monsoon 1.1

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Vri

atio

n in

Bo

D

Biological oxygen Demand,mg/l

2296Pre-monsoon 460Monsoon 305Post-monsoon 387

050

100150200250300350400450500

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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96

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1.31 Ancharakkandy River

The Ancharakkandy River originates from Kannoth reserve forest. It has a total stretch of 48 km. It is strengthened by the confluence of small tributaries namely Kapputhodu and Idumbathodu near Kunderipoyil. This river branches into two at Orikkara and one branch meets the Lakshadweep Sea at Thalassery. The selected NWMP river stations are at Ancharakkandy and Meruvambai. The adjoining town is Koothuparamba. This river has the main water supply schemes of Kuthuparamba, Kizhallur and Mangathadam grama panchayath.

2019 ANCHARAKANDY RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Meruvambai 2297

NWMP

Max 7.4 135 8 2.5 560 150

BMin 6.4 48 4.2 0.2 100 20

Mean 6.9 82 6.2 1.2 299 66

Std. Dev 0.3 32.86 1.4 0.8 155.71 39.08

Ancharakkandy 2319 NWMP

Max 7.4 22000 8.8 2.1 650 170

Below EMin 6.1 56 4.6 0.1 120 20

Mean 6.8 5938 6.5 0.9 392 78

Std. Dev 0.4 8495.66 1.1 0.6 159.76 45.18

*See Annexure IV

Directory 2019

Kerala State Pollution Control Board

98

98

2297 2319Pre-monsoon 7.2 7.2Monsoon 6.7 6.4Post-monsoon 6.8 6.9

5.86.06.26.46.66.87.07.27.4

Var

iati

on in

pH

pH

2297 2319Pre-monsoon 5.8 6.3Monsoon 6.3 6.4Post-monsoon 6.6 6.9

5.25.45.65.86.06.26.46.66.87.07.2

Var

iati

on in

Do

Dissolved oxygen, mg/l

2297 2319Pre-monsoon 101 10434Monsoon 77 4722Post-monsoon 57 68

0

2000

4000

6000

8000

10000

12000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2297 2319Pre-monsoon 1.5 1.2Monsoon 0.9 0.7Post-monsoon 0.9 0.6

0.00.20.40.60.81.01.21.41.61.8

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

2297 2319Pre-monsoon 348 440Monsoon 228 305Post-monsoon 313 427

050

100150200250300350400450500

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

Directory 2019 99

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100

100

1.32 Ramapuram River

The Ramapuram River originates from the hills in Iringal village in Kannur district. It flows through the villages of Pariyaram, Kolapartvayal, Cherythazham and Madai. The river finally drains into the Kavai backwaters. The NWMP river station is located at Ramapuram bridge in Pazhayangady town in Kannur.

2019 RAMAPURAM RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Ramapuram 2299 NWMP

Max 7.7 53500 8.3 2.4 500 150

Below EMin 6.1 131 3.2 0.3 100 10

Mean 7.0 18506 4.8 1.4 218 39

Std. Dev 0.5 21727.85 1.4 0.6 141.49 38.46

*See Annexure IV

2299Pre-monsoon 7.5Monsoon 6.7Post-monsoon 6.8

6.26.46.66.87.07.27.47.6

Var

iati

on

in

pH

pH

2299Pre-monsoon 32990Monsoon 13818Post-monsoon 619

05000

100001500020000250003000035000

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

2299Pre-monsoon 5.5Monsoon 4.2Post-monsoon 4.3

0.0

1.0

2.0

3.0

4.0

5.0

6.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

2299Pre-monsoon 1.7Monsoon 0.9Post-monsoon 1.4

0.00.20.40.60.81.01.21.41.61.8

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

2299Pre-monsoon 190Monsoon 195Post-monsoon 293

0

50

100

150

200

250

300

350

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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102

1.33 Kavai River

This river has a length of about 31 km and originates from Cheemeni hillock. It flows through Alapadamba and Vadassery and finally enters the backwater at Udumbunthala. Check dams are constructed in the upstream and down stream of this river. The selected NWMP sampling station is at Kuttiyolpalam in Peralam Village near Payyanur.

2019 KAVAI RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Kuttiyolpalam 2301 NWMP

Max 7.3 20700 6.3 2.1 810 180

CMin 5.8 42 3.6 0.3 50 10

Mean 6.7 1803 4.8 1.1 481 99

Std. Dev 0.4 5951.15 0.9 0.6 288.27 59.21

*See Annexure IV

2301Pre-monsoon 7.0Monsoon 6.4Post-monsoon 6.8

6.06.16.26.36.46.56.66.76.86.97.07.1

Var

iati

on in

pH

pH

2301Pre-monsoon 116Monsoon 5224Post-monsoon 52

0

1000

2000

3000

4000

5000

6000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2301Pre-monsoon 4.5Monsoon 4.5Post-monsoon 5.7

0.0

1.0

2.0

3.0

4.0

5.0

6.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

2301Pre-monsoon 1.3Monsoon 1.0Post-monsoon 0.9

0.00.20.40.60.81.01.21.4

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

2301Pre-monsoon 522Monsoon 528Post-monsoon 350

0

100

200

300

400

500

600

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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104

1.34 Valapattanam River

Valapattanam River originates from Brahmagiri forests of Kodagu district in Karnataka State and joins Kuppam River and empties into the Arabian Sea. It has a length of 110 km. The irrigation project, Pazhassi Dam is in Valapattanam river. Major tributaries are Srikandapuram, Bharapuzha Valiyapuzha, Venipuzha and Aralampuzha. The NWMP stations selected are Parassinikadavu( near Parassinikadavu temple) and Pazhassi Reservoir. SWMP stations are located at Valapattanam, Chenglayi, Irikoor.

2019 VALAPATTANAM RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Pazhassi 2318 NWMP

Max 8 92 8.1 1.2 500 160

BMin 6.7 36 6.3 0.1 40 5

Mean 7.4 66 7.5 0.6 251 53

Std. Dev 0.4 17.54 0.5 0.4 167.6 42.43

Irikkoor K94

SWMP

Max 8.0 1248 7.9 2.2 800 160

BMin 6.4 36 6.9 0.1 100 10

Mean 7.4 181 7.4 1.0 371 57

Std. Dev 0.5 338.85 0.3 0.7 232.12 53.98

Chengalayi K95 SWMP

Max 8.0 29900 8.0 1.8 650 120

Below EMin 6.8 42 4.9 0.2 50 8

Mean 7.3 10266 6.8 0.9 264 41

Std. Dev 0.4 12123.93 1.0 0.5 177.43 36.05

Parassinikadavu 3473 NWMP

Max 7.6 42600 8.2 2.7 750 170

Below EMin 6.9 66 4.5 0.7 31 5

Mean 7.3 21844 6.6 1.8 265 64

Std. Dev 0.3 18398.18 1.2 0.6 238.31 59.48

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2318 K94 K95 3473 K96Pre-monsoon 7.8 7.8 7.4 7.5 7.8Monsoon 7.1 6.9 7.1 7.0 7.2Post-monsoon 7.2 7.3 7.4 7.3 7.4

6.46.66.87.07.27.47.67.88.0

Var

iati

on in

pH

pH

2318 K94 K95 3473 K96Pre-monsoon 7.6 7.5 6.3 6.0 6.1Monsoon 7.6 7.5 6.9 7.0 5.8Post-monsoon 7.1 7.2 7.3 7.0 5.7

0.01.02.03.04.05.06.07.08.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

2318 K94 K95 3473 K96Pre-monsoon 80 335 19282 38400 36580Monsoon 59 82 6626 11734 14068Post-monsoon 55 58 95 7730 22117

05000

1000015000200002500030000350004000045000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2318 K94 K95 3473 K96Pre-monsoon 0.6 1.2 0.8 1.8 1.6Monsoon 0.5 0.7 0.8 1.9 1.5Post-monsoon 0.9 0.9 0.9 1.4 2.8

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

iati

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Bo

D

Biological oxygen Demand, mg/l

2318 K94 K95 3473 K96Pre-monsoon 153 498 364 234 236Monsoon 363 370 210 348 448Post-monsoon 267 160 170 207 580

0100200300400500600700

Var

iati

on in

TC

Total Coliform, MPN/100ml

Valapattanam K96 SWMP

Max 8.0 45200 7.7 3.1 800 240

Below EMin 6.9 663 3.6 0.3 120 16

Mean 7.5 25460 5.9 1.8 393 68

Std. Dev 0.3 16324.24 1.2 1.0 211.45 65.57

*See Annexure IV

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.35 Neeleswaram River

The Neeleswaram River originates from Hosdurg taluk in Kasaragod district and joins Karingode River at Kottappuram. It has a total length of 41 km. Two NWMP stations are located in this river, one at Nambiarackal dam, a check dam for preventing saline water intrusion, near Padannakkkad and the other at Hosdurg near Kerala Agricultural University.

2019 NEELESWARAM RIVER

River Stations pH EC-µmhos/cm DO- mg/l BOD- mg/l TC-MPN/100ml FC-MPN/100ml CLASS*

Nambiarckal 2302 NWMP

Max 8.1 820 8.2 2.7 940 240

BMin 6.2 53 5.9 0.6 120 26

Mean 7.1 266 6.6 1.8 500 101

Std. Dev 0.7 292.77 0.8 0.7 246.54 61.1

Hosdurg 1570 NWMP

Max 8.1 40000 8.2 2.9 1400 390

Below EMin 6.3 75 3.0 0.4 230 32

Mean 7.1 16353 6.2 1.7 705 150

Std. Dev 0.6 19864.25 1.4 0.7 481.39 130

*See Annexure IV

1570 2302Pre-monsoon 7.6 0.8Monsoon 7.0 1.0Post-monsoon 6.5 0.5

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on

in

pH

pH

1570 2302Pre-monsoon 38818 535Monsoon 445 87Post-monsoon 122 58

05000

1000015000200002500030000350004000045000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

1570 2302Pre-monsoon 5.3 6.3Monsoon 6.4 6.7Post-monsoon 7.5 7.1

0.01.02.03.04.05.06.07.08.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

1570 2302Pre-monsoon 5.3 6.3Monsoon 6.4 6.7Post-monsoon 7.5 7.1

0.01.02.03.04.05.06.07.08.0

Var

iati

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Do

Dissolved oxygen, mg/l

1570 2302Pre-monsoon 1220 636Monsoon 365 450Post-monsoon 300 340

0

200

400

600

800

1000

1200

1400

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.36 Kariangode River

The Kariangode River flows through Hosdurg taluk. It has a total length of 64 km. This river falls into the Lakshadweep Sea. The NWMP sampling station located is at Kakkadavu near Cheemeni. During summer a check dam is constructed to divert the river to Ezhimala Naval Academy.

2019 KARIANgODE RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Kakkadavu 1571 NWMP

Max 8.1 105 8.7 1.8 840 220

BMin 6.4 54 4.1 0.0 65 16

Mean 7.2 71 7.3 0.7 296 61

Std. Dev 0.5 13.09 1.3 0.5 295.01 62.44

*See Annexure IV

1571Pre-monsoon 7.7Monsoon 7.1Post-monsoon 6.7

6.06.26.46.66.87.07.27.47.67.8

Var

iati

on

in

pH

pH

1571Pre-monsoon 76Monsoon 68Post-monsoon 66

60626466687072747678

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

1571Pre-monsoon 6.9Monsoon 7.4Post-monsoon 7.9

6.26.46.66.87.07.27.47.67.88.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

1571Pre-monsoon 0.6Monsoon 0.8Post-monsoon 0.6

0.00.10.20.30.40.50.60.70.80.9

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

1571Pre-monsoon 517Monsoon 158Post-monsoon 110

0

100

200

300

400

500

600

Var

iati

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TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.37 Chandragiripuzha

This river has a length of 105 km and originates from Puttibattu forest in Karnataka State. It flows westwards and falls into the Lakshadweep Sea. The NWMP river station located is at Padiyathadka in Kasaragod district.

2019 CHANDRAgIRI RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Padiathadka 1572 NWMP

Max 8.1 120 8.7 2.8 1200 280

BMin 6.3 39 6.3 0.3 92 17

Mean 6.9 67 7.6 1.4 350 64

Std. Dev 0.7 22.19 0.8 0.9 341.01 81.26

*See Annexure IV

1572Pre-monsoon 7.6Monsoon 6.7Post-monsoon 6.3

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on

in

pH

pH

1572Pre-monsoon 89Monsoon 59Post-monsoon 56

0102030405060708090

100

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

1572Pre-monsoon 7.5Monsoon 7.1Post-monsoon 8.4

6.46.66.87.07.27.47.67.88.08.28.48.6

Var

iati

on

in

Do

Dissolved oxygen, mg/l

1572Pre-monsoon 0.8Monsoon 1.6Post-monsoon 1.6

0.00.20.40.60.81.01.21.41.61.8

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

1572Pre-monsoon 664Monsoon 198Post-monsoon 240

0

100

200

300

400

500

600

700

Var

iati

on

in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.38 Mogral River

This river is 34 km long and originates from the forest of Nathoorkarnataka in Kasaragod district. It flows through Yatirir, Madhur and Patla and merges with the Lakshadweep Sea. The NWMP river station is located at Mogral Bridge near Mogral town.

2019 MOgRAL RIVER

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Mogral Bridge2304 NWMP

Max 7.9 49800 7.8 2.1 1720 430

Below EMin 6.2 119 4.1 0.5 150 31

Mean 7.0 21370 6.0 1.3 703 178

Std. Dev 0.6 23018.71 1.3 0.5 648.15 150.77

*See Annexure IV

2304Pre-monsoon 7.6Monsoon 6.5Post-monsoon 6.7

5.86.06.26.46.66.87.07.27.47.67.8

Var

iati

on

in

pH

pH

2304Pre-monsoon 47253Monsoon 1218Post-monsoon 5101

05000

100001500020000250003000035000400004500050000

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

2304Pre-monsoon 4.9Monsoon 6.8Post-monsoon 6.7

0.01.02.03.04.05.06.07.08.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

2304Pre-monsoon 1.5Monsoon 1.4Post-monsoon 0.9

0.00.20.40.60.81.01.21.41.6

Var

iati

on

in

Bo

D

Biological oxygen Demand,mg/l

2304Pre-monsoon 1392Monsoon 223Post-monsoon 193

0200400600800

1000120014001600

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.39 Shiriya River

The Shiriya River originates in the State of Karnataka, travels through a length of 61 km and joins the Kumbala Lake and empties into the Lakshadweep Sea. The NWMP Sampling station is at Angadimogaru town in Kasaragod district. The SWMP sampling stations are Yethdka, Bakkilapadavu, Swargathodu, Vaninagar, Sullyapadavu.

2019 SHIRIYA RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Yethadka K97 SWMP

Max 8.2 86 11.5 3.4 1560 435

BMin 6.1 64 5.6 0.5 40 4

Mean 7.0 73 8.2 1.3 442 135

Std. Dev 0.7 8.28 1.5 1.0 614.51 178.58

Bakkilapadavu K98

SWMP

Max 8.0 102 9.7 3.6 1720 448

BMin 6.1 52 5.5 0.4 50 4

Mean 6.8 64 7.9 1.4 409 109

Std. Dev 0.6 15.9 1.2 1.0 631.04 176.78

Swargathodu K99 SWMP

Max 8.1 80 8.7 1.3 1550 480

BMin 6.3 31 4.0 0.1 50 4

Mean 7.0 50 7.3 0.7 436 118

Std. Dev 0.6 13.11 1.4 0.5 591.88 173.45

Vani Nagar K100 SWMP

Max 7.8 98 9.6 2.5 1670 480

BMin 6.1 54 4.7 0.1 30 4

Mean 6.8 71 7.2 1.2 471 112

Std. Dev 0.6 16.13 1.6 0.7 684.7 176.67

Sullyapadavu K101 SWMP

Max 6.7 189 8.7 1.2 1480 416

BMin 6.0 70 5.2 0.5 30 4

Mean 6.5 98 7.6 0.9 250 70

Std. Dev 0.3 40.92 1.2 0.2 542.53 152.58

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Angadimogaru 2305 NWMP

Max 7.0 66 9.7 2.8 540 80

BMin 6.1 39 7.0 0.1 85 19

Mean 6.6 55 8.2 1.9 332 56

Std. Dev 0.3 11.5 0.8 0.8 154.36 19.82

*See Annexure IV

K97 K98 K99 K100 K101 2305Pre-monsoon 7.4 7.1 7.2 7.2 6.2 6.8Monsoon 6.9 6.4 6.6 6.5 6.3 6.8Post-monsoon 6.8 7.0 7.1 6.8 6.7 6.3

0.01.02.03.04.05.06.07.08.0

Var

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pH

pH

K97 K98 K99 K100 K101 2305Pre-monsoon 9.1 9.0 5.6 5.9 5.2 7.0Monsoon 7.6 7.0 7.5 7.1 7.6 8.3Post-monsoon 8.2 8.3 8.1 8.8 8.3 8.4

0.01.02.03.04.05.06.07.08.09.0

10.0

Var

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Do

Dissolved oxygen, mg/l

K97 K98 K99 K100 K101 2305Pre-monsoon 76 79 67 69 189 65Monsoon 74 64 42 80 92 52Post-monsoon 68 54 48 61 75 56

020406080

100120140160180200

Var

iati

on in

EC

Electrical Coductivity, µmhos/cm

K97 K98 K99 K100 K101 2305Pre-monsoon 2.6 2.4 1.0 1.7 0.9 2.0Monsoon 0.8 1.0 0.9 0.7 0.8 2.4Post-monsoon 0.8 1.3 0.4 1.3 0.9 1.1

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

iati

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Bo

D

Biological oxygen Demand, mg/l

K97 K98 K99 K100 K101 2305Pre-monsoon 1313 1500 1450 1427 1480 85Monsoon 83 123 215 63 37 363Post-monsoon 50 63 53 60 53 373

0200400600800

1000120014001600

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.40 Uppala River

The Uppala River has a length of 50 km and originates from the Veejakumbha hills in Karnataka State. It flows through Kasaragod and empties into the Lakshadweep Sea at the northern part of Uppala town. The NWMP sampling station is located at Uppala.

2019 UPPALA RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Uppala Bridge 2306 NWMP

Max 7.9 46500 9.1 3.3 1980 490

Below EMin 6.1 62 4.4 0.1 110 32

Mean 7.1 17812 6.7 1.8 701 180

Std. Dev 0.5 21491.77 1.3 0.9 730.24 173.25

*See Annexure IV

2306Pre-monsoon 7.6Monsoon 6.7Post-monsoon 7.0

6.26.46.66.87.07.27.47.67.8

Var

iati

on

in

pH

pH

2306Pre-monsoon 42086Monsoon 198Post-monsoon 838

05000

1000015000200002500030000350004000045000

Var

iati

on

in

EC

Electrical Conductivity,µmhos/cm

2306Pre-monsoon 5.6Monsoon 7.3Post-monsoon 7.9

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

2306Pre-monsoon 2.3Monsoon 1.7Post-monsoon 1.1

0.0

0.5

1.0

1.5

2.0

2.5

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

2306Pre-monsoon 1456Monsoon 160Post-monsoon 163

0200400600800

1000120014001600

Var

iati

on

in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.41 Manjeswaram River

This 16 km long river originates from the northern boundary of Jeraka, Kasaragod district. It flows through the villages of Pavoori and Badajay and finally combines with Uppala River. The selected NWMP river station is located at Bajrakkara Bridge in Kasaragod.

2019 MANJESWARAM RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Bajrakkara 2307 NWMP

Max 8.2 228 8.5 2.9 940 220

BMin 6.2 54 3.0 1.0 40 4

Mean 7.0 96 7.0 1.9 177 41

Std. Dev 0.7 57.87 1.8 0.7 286.7 67.81

*See Annexure IV

2307Pre-monsoon 8.2Monsoon 6.6Post-monsoon 6.7

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on

in

pH

pH

2307Pre-monsoon 189Monsoon 73Post-monsoon 65

020406080

100120140160180200

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

2307Pre-monsoon 4.2Monsoon 7.5Post-monsoon 8.4

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

2307Pre-monsoon 1.8Monsoon 1.9Post-monsoon 2.0

1.61.71.71.81.81.91.92.02.02.12.1

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

2307Pre-monsoon 508Monsoon 83Post-monsoon 84

0

100

200

300

400

500

600

Var

iati

on i

n TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.42 Peruvamba River

This 51 km long river originates from the Western Ghats near Pekkunnu in Vayakara village. It flows through Peringome, Kuttur, Mathamangalam and Kunhimangalam. It bifurcates at Ezhimala and one branch falls into Kavai backwaters and the other into the Lakshadweep Sea.Mancharuthuthodu, the main tributary of the river originates from Pekkunnu joins the river at Mathamangalam. The other important streams are the Challachal, the Mukkuttenkarachal and the Nitaringapuzha. The selected NWMP station in this river is at Chandapura near Taliparamba town.

2019 PERUVAMBA RIVER

River Stations pH EC µmhos/cm

DO mg/l

BOD mg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Chandrapura 2300 NWMP

Max 7.3 100 7.1 2.6 760 210

BMin 6.3 39 4.4 0.2 150 20

Mean 6.8 147 5.9 1.4 368 68

Std. Dev 0.4 300.75 1.1 0.8 178.64 54.36

*See Annexure IV

2300Pre-monsoon 7.1Monsoon 6.7Post-monsoon 6.6

6.46.56.66.76.86.97.07.1

Var

iati

on

in

pH

pH

2300Pre-monsoon 78Monsoon 310Post-monsoon 44

050

100150200250300350

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

2300Pre-monsoon 5.5Monsoon 5.7Post-monsoon 6.9

0.01.02.03.04.05.06.07.08.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

2300Pre-monsoon 1.5Monsoon 0.9Post-monsoon 1.7

0.00.20.40.60.81.01.21.41.61.8

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

2300Pre-monsoon 340Monsoon 365Post-monsoon 417

050

100150200250300350400450

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.43 Thodupuzha River

It is originated from Thodupuzha Taluk in the Idukki district and is a tributary of the Muvattupuzha river. The SWMP stations located in the river are Thookupalam, Near Chittoor, Near Vengalloor Bridge, Near Pappootty Bar & Restaurant, Near Moopilkadavu Bridge, Near Malankara Dam.

2019 THODUPUZHA RIVER

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Near Malankara DamK102 SWMP

Max 7 90 8.1 2.7 16200 4400

DMin 5.9 45 6.6 1.1 1600 500

Mean 6.3 69 7.3 1.7 5458 1892

Std. Dev 0.3 15.6 0.4 0.5 3872.62 1137.35

Near Mooppilakkadavu Bridge K103 SWMP

Max 7.0 96 7.9 2.8 12600 7400

DMin 5.8 50 6.4 0.8 1700 1100

Mean 6.4 72 7.4 1.6 6767 2867

Std. Dev 0.4 15.94 0.4 0.6 3268.4 1732.23

Near Pappootty Bar &Restaurant

K104SWMP

Max 7.5 103 8.4 2.5 18400 6400

DMin 5.9 44 6.1 1.1 1800 900

Mean 6.5 70 7.6 1.8 7783 3283

Std. Dev 0.5 17.67 0.7 0.4 4770.71 1830.96

Near Vengalloor Bridge K105 SWMP

Max 7.0 89 8.0 2.9 12800 5900

DMin 5.9 51 5.6 1.0 1400 300

Mean 6.4 71 7.3 1.7 6008 2683

Std. Dev 0.3 13.14 0.6 0.6 3299.16 1457.79

Thookkupalam Near Chittoor K106 SWMP

Max 6.6 100 8.0 2.7 8700 4700

DMin 5.9 50 5.1 1.5 3600 900

Mean 6.4 74 7.3 2.0 5892 2958

Std. Dev 0.2 14.54 0.8 0.4 1613.27 1172.77

*See Annexure IV

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K102 K103 K104 K105 K106Pre-monsoon 6.2 6.2 6.2 6.3 6.3Monsoon 6.1 6.3 6.5 6.4 6.4Post-monsoon 6.7 6.8 7.0 6.8 6.3

5.45.65.86.06.26.46.66.87.07.2

Var

iati

on in

pH

pH

K102 K103 K104 K105 K106Pre-monsoon 7.2 7.2 7.9 7.5 7.2Monsoon 7.6 7.6 7.4 7.4 7.3Post-monsoon 7.2 7.2 7.5 6.6 7.5

6.06.26.46.66.87.07.27.47.67.88.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

K102 K103 K104 K105 K106Pre-monsoon 78 86 81 80 87Monsoon 67 64 64 66 64Post-monsoon 54 59 59 61 67

0102030405060708090

100

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

K102 K103 K104 K105 K106Pre-monsoon 1.9 1.6 2.0 2.0 2.1Monsoon 1.6 1.7 1.6 1.5 1.9Post-monsoon 1.5 1.6 1.6 1.4 1.9

0.0

0.5

1.0

1.5

2.0

2.5

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

K102 K103 K104 K105 K106Pre-monsoon 4020 9440 8340 7420 7080Monsoon 8800 4850 9625 6200 5725Post-monsoon 3400 4867 4400 3400 4133

0

2000

4000

6000

8000

10000

12000

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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1.44 Munnar River

Some of the main tributaries of Periyar are Muthirapuzha, Nallathanni and Kundala. The confluence of these three rivers is called Munnar River. The SWMP sampling stations located in this river are Nallathanni, Kundala, Muthirapuzha, K.S.E.B Head Works Dam, Pambar.

2019 MUNNAR RIVER

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TC MPN/100ml

FC MPN/100ml CLASS*

Pambar K107 SWMP

Max 7.5 156 7.9 2.4 18000 6300

DMin 5.8 28 4.6 1.0 3200 400

Mean 6.7 83 6.3 1.7 6827 2900

Std. Dev 0.6 40.13 1.2 0.5 4188.34 1491.98

Nallathanni K108 SWMP

Max 6.9 114 8.0 3.5 14000 6700

DMin 5.9 31 5.1 1.6 2200 600

Mean 6.4 68 6.6 2.1 6783 2817

Std. Dev 0.3 27.36 0.8 0.5 3045.66 1618.55

Kundala K109 SWMP

Max 6.7 123 7.7 3.0 8600 3800

DMin 5.5 48 6.1 0.9 2700 500

Mean 6.4 75 7.0 1.5 5492 2283

Std. Dev 0.3 23.19 0.6 0.6 2117.23 997.12

Muthirappuzha K110

SWMP

Max 6.8 127 7.9 2.9 9200 5800

DMin 5.9 53 5.0 1.0 1300 900

Mean 6.4 81 6.9 1.8 5625 2917

Std. Dev 0.3 27.38 1.0 0.6 2438.75 1351.65

Near KSEB Head K111 SWMP

Max 7.0 126 8.1 2.5 16800 4700

DMin 6.1 32 6.0 1.4 3400 1800

Mean 6.5 76 6.8 1.9 7883 2725

Std. Dev 0.3 28.4 0.8 0.4 4857.58 867.73

*See Annexure IV

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K107 K108 K109 K110 K111Pre-monsoon 6.5 6.4 6.2 6.4 6.4Monsoon 6.5 6.4 6.4 6.4 6.4Post-monsoon 7.2 6.5 6.5 6.5 6.7

5.65.86.06.26.46.66.87.07.27.4

Var

iati

on in

pH

pH

K107 K108 K109 K110 K111Pre-monsoon 5.6 6.7 7.2 6.9 6.9Monsoon 6.5 6.4 6.9 6.8 6.9Post-monsoon 7.0 7.0 6.6 6.9 6.4

0.01.02.03.04.05.06.07.08.0

Var

iati

on I

Do

Dissolved oxygen, mg/l

K107 K108 K109 K110 K111Pre-monsoon 96 73 89 96 83Monsoon 79 53 71 73 73Post-monsoon 67 81 58 67 66

0

20

40

60

80

100

120

Var

iati

on in

EC

Electrical Conductivity,µmhos/cm

K107 K108 K109 K110 K111Pre-monsoon 1.8 2.5 1.7 1.9 2.3Monsoon 1.7 1.9 1.6 1.8 1.7Post-monsoon 1.4 1.7 1.2 1.8 1.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

iati

on in

Bo

D

Biological oxygen Demand,mg/l

K107 K108 K109 K110 K111Pre-monsoon 8280 7600 6240 5680 11000Monsoon 6700 7250 5550 6750 7025Post-monsoon 4533 4800 4167 4033 3833

0

2000

4000

6000

8000

10000

12000

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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RivuletS/tRibutaRieS

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2.1 Kadambrayar riverThe Kadambrayar is the drain from the irrigation canals of Bhoothathankettu which are well connected with the adjoining paddy fields. The Kadambrayar joins Chitrapuzha near Brahmapuram. The two stations monitoring under the National water quality Programme (NWMP) are at Brahmapuram (2337)andManakkakadavu (2338).

2019 KADAMBRAYAR

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Manakkakadavu 2338 NWMP

Max 7.6 160 8.4 4.4 7900 6300

EMin 6.5 88 0.8 0.4 340 120

Mean 7.0 118 3.5 2.2 3178 2038

Std. Dev 0.3 23.22 2.3 1.1 2414.99 2143.41

Brahmapuram 2337 NWMP

Max 7.3 210 4.8 3.6 120000 100000

EMin 6.5 94 0.8 1.2 700 200

Mean 6.8 133 1.9 2.4 28758 19765

Std. Dev 0.3 36.52 1.2 0.6 43238.15 34539.82

*See Annexure IV

2338 2337Pre-monsoon 7.0 6.9Monsoon 7.1 6.9Post-monsoon 6.7 6.7

6.56.66.76.86.97.07.17.2

Var

iati

on

in

pH

pH

2338 2337Pre-monsoon 115 120Monsoon 131 145Post-monsoon 106 140

020406080

100120140160

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

2338 2337Pre-monsoon 2.3 1.4Monsoon 5.2 2.6Post-monsoon 3.3 1.5

0.0

1.0

2.0

3.0

4.0

5.0

6.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

2338 2337Pre-monsoon 2.8 2.7Monsoon 1.6 2.4Post-monsoon 1.8 2.0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

2338 2337Pre-monsoon 1248 25320Monsoon 5075 41575Post-monsoon 3867 17400

05000

1000015000200002500030000350004000045000

Var

iati

on

in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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2.2 Chithrapuzha river

Chithrapuzha river, one of the tidal tributaries of Periyar River flowing throughAmbalamedu, receives effluent discharges from several industrial establishments in Kochi area.The upstream portion of Chitrapuzha has a link with the Kadambrayar. Sampling station under the National water quality Programme (NWMP) is at Irumpanam( 1573).

2019 CHITHRAPUZHA

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Irumpanam 1573 NWMP

Max 7.1 6500 7.1 2.8 17000 6300

EMin 6.4 149 1.4 0.4 840 170

Mean 6.6 1925 3.2 1.9 5712 3098

Std. Dev 0.2 2267.06 1.8 0.9 4154.28 1682.93

*See Annexure IV

1573Pre-monsoon 6.6Monsoon 6.6Post-monsoon 6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

Var

iati

on

in

pH

pH

1573Pre-monsoon 3874Monsoon 784Post-monsoon 197

0500

10001500200025003000350040004500

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

1573Pre-monsoon 3.8Monsoon 3.4Post-monsoon 1.9

0.00.51.01.52.02.53.03.54.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

1573Pre-monsoon 1.8Monsoon 1.9Post-monsoon 2.0

1.71.71.81.81.91.92.02.02.1

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

1573premansoo 2848Monsoon 9025Post-monsoon 6067

0100020003000400050006000700080009000

10000

Var

iato

n i

n T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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2.3 Korayar River

Korayar is one of the tributaries of river Kalpathipuzha, which in turn is a main tributary of the Bharathapuzha River, the second longest river in Kerala. The sampling station is located at Kanjikode( Nagarampally Bridge) near Pudussery town in Palakaddistrict( 2326). The Kanjikode industrial area is located on the banks of this river.

2019 KORAYAR RIVER

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Kanjikkode 2326 NWMP

Max 8 1524 7.3 3.0 920 400

BMin 6.2 300 5.4 0.7 0 0

Mean 7.5 745 6.5 2.0 469 120

Std. Dev 0.6 368.11 0.6 0.8 412.46 151.73

*See Annexure IV

2326Pre-monsoon 7.0Monsoon 7.8Post-monsoon 7.7

6.46.66.87.07.27.47.67.88.0

Var

iati

on

in

pH

pH

2326Pre-monsoon 608Monsoon 451Post-monsoon 1223

0200400600800

100012001400

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

2326Pre-monsoon 6.5Monsoon 6.4Post-monsoon 6.7

6.16.26.36.46.56.66.76.8

Var

iati

on

in

Do

Dissolved oxygen, mg/l

2326Pre-monsoon 2.5Monsoon 2.3Post-monsoon 1.1

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

2326Pre-monsoon 373Monsoon 153Post-monsoon 913

0100200300400500600700800900

1000

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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2.4 Pullur River

The Pullur River takes its origin in Pullur region in Hosdurgtaluk of Kasaragod district and is the main stream joining the Chithari River. The sampling station is located at Pullurbridge( 2303) near Kanhangad town.

2019 PULLUR RIVER

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Pullur 2303 NWMP

Max 8.2 78 9.1 3.8 1850 380

CMin 5.2 37 4.9 1.0 140 26

Mean 6.7 55 7.2 2.0 639 96

Std. Dev 0.8 14.04 1.2 1.0 611.65 107.9

*See Annexure IV

2303Pre-monsoon 6.7Monsoon 6.7Post-monsoon 6.7

6.76.76.76.76.76.76.76.76.76.7

Var

iati

on

in

pH

pH

2303Pre-monsoon 58Monsoon 47Post-monsoon 63

010203040506070

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

2303Pre-monsoon 5.5Monsoon 7.4Post-monsoon 8.0

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

2303Pre-monsoon 3.0Monsoon 1.7Post-monsoon 1.8

0.00.51.01.52.02.53.03.5

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

2303Pre-monsoon 1675Monsoon 383Post-monsoon 290

0200400600800

10001200140016001800

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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2.5 Kalpathy Puzha

Kalpathypuzha is one of the main tributaries of the Bharathapuzha River. It originates in the upper slopes of the western ghats at Chenthamarakulam, north of Walayar. It is formed by the confluence of four streams, namely Malampuzha, Walayar, Korayar, and Varattar. The river is named after the Kalpathi Siva Temple near Palakad town. Sampling station is at Kalpathy( code3460), downstream of the temple.

2019 KALPATHY PUZHA

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Kalpathy3460 NWMP

Max 8.1 1296 6.9 3.0 2200 1000

CMin 6.6 133 2.1 1.2 110 10

Mean 7.5 527 5.7 2.4 703 282

Std. Dev 0.4 356.15 1.3 0.6 622.34 316.32

*See Annexure IV

3460Pre-monsoon 7.4Monsoon 7.7Post-monsoon 7.6

7.37.37.47.47.57.57.67.67.77.77.8

Var

iati

on

in

pH

pH

3460Pre-monsoon 322Monsoon 376Post-monsoon 1019

0

200

400

600

800

1000

1200

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

3460Pre-monsoon 5.3Monsoon 6.0Post-monsoon 6.0

4.85.05.25.45.65.86.06.2

Var

iati

on

in

Do

Dissolved oxygen, mg/l

3460Pre-monsoon 2.6Monsoon 2.3Post-monsoon 2.2

2.02.12.22.32.42.52.62.7

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

3460Pre-monsoon 640Monsoon 127Post-monsoon 1383

0200400600800

1000120014001600

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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2.6 Maniyankode Puzha

ManiyankodePuzha is a tributary of river Panamaram in Wayanad district. Discharges from Kalpetta town enter into this stream. Sampling station is located at ManiyankodeBridge (code 3459)

2019 MANIYANKODE PUZHA

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Maniyankode 3459 NWMP

Max 7.6 199 7.1 2.8 170 84

BMin 6.5 66 4.2 0.2 17 2

Mean 7.0 129 5.9 1.0 80 36

Std. Dev 0.4 39.5 0.9 0.9 53.33 27.68

*See Annexure IV

3459Pre-monsoon 6.9Monsoon 7.1Post-monsoon 7.0

6.8

6.9

6.9

7.0

7.0

7.1

7.1

Var

iati

on

in

pH

pH

3459Pre-monsoon 160Monsoon 109Post-monsoon 106

020406080

100120140160180

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

3459Pre-monsoon 5.9Monsoon 5.5Post-monsoon 6.5

5.05.25.45.65.86.06.26.46.6

Var

iati

on

in

Do

Dissolved oxygen, mg/l

3459Pre-monsoon 0.5Monsoon 1.7Post-monsoon 0.8

0.00.20.40.60.81.01.21.41.61.8

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

3459Pre-monsoon 47Monsoon 30Post-monsoon 27

05

101520253035404550

Var

iati

on

in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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FReSh WateR lakeS

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3.1 Vellayani Lake

Vellayani Lake, or VellayaniKayal as it is better known in Kerala, is the largest fresh water lake in Thiruvananthapuram district. The lake water is extensively used for drinking and irrigational purposes.There are two water intake points of the Kerala Water Authority , one at Kadavinmoola and other at Vandithadam. The totalarea of the lake is reduced drastically due illegal sand mining, encroachment and land reclamation. Now the lake is under threat of pollution mainly from domestic wastes from nearby areas. The NWMP monitoring station is at Vandithadam.

141

2019 VELLAYANI LAKE

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Vandithadam 3470 NWMP

Max 7.5 225 6.2 6.4 2000 940

EMin 5.8 120 0.1 0.4 400 100

Mean 6.7 183 3.6 4.1 1028 378

Std. Dev 0.5 31.44 2.5 1.9 556.63 336.56

Kakkamoola Left K112 SWMP

Max 7.4 110 6.5 6.3 4200 2200

CMin 6.2 17 0.5 0.6 200 100

Mean 6.7 61 4.3 2.5 1975 642

Std. Dev 0.4 35.21 1.8 1.5 1687.99 672.12

Kakkamoola Right K113

SWMP

Max 7.8 99 6.7 6.1 5000 2000

CMin 6.1 14 2.4 0.9 600 100

Mean 6.8 56 4.7 2.6 2592 775

Std. Dev 0.5 31.29 1.3 1.4 1708.51 619.57

Vaavamoola Left K114

SWMP

Max 7.8 79 7.9 5.5 4200 2200

CMin 6.0 17 2.8 0.3 600 200

Mean 6.7 42 5.4 2.7 1958 983

Std. Dev 0.6 24.52 1.4 1.7 1152.44 593.65

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Vaavamoola Right K115 SWMP

Max 7.7 81 7.8 6.8 4500 1800

CMin 6.0 13 2.1 0.8 500 100

Mean 6.7 39 5.1 2.7 1908 517

Std. Dev 0.5 27.5 1.4 1.9 1298.57 523.68

Agriculture College K116 SWMP

Max 7.7 81 6.7 5.5 4000 2000

CMin 6.4 17 3.9 0.4 400 100

Mean 6.9 43 5.2 2.3 1308 508

Std. Dev 0.4 26.48 0.9 1.6 1152.44 575.97

*See Annexure IV

3470 K112 K113 K114 K115 K116Pre-monsoon 6.6 6.6 6.5 6.3 6.3 6.6Monsoon 6.8 6.6 6.9 6.8 6.8 7.1Post-monsoon 6.9 7.2 7.1 7.2 7.1 7.2

5.86.06.26.46.66.87.07.27.4

Varia

tion

in p

H

pH

3470 K112 K113 K114 K115 K116Pre-monsoon 4.1 4.8 4.9 4.7 5.0 4.8Monsoon 4.2 4.5 5.3 5.0 4.9 5.6Post-monsoon 1.9 3.1 3.5 7.2 5.5 5.4

0.01.02.03.04.05.06.07.08.0

Varia

tin in

Do

Disolved oxygen, mg/l

3470 K112 K113 K114 K115 K116Pre-monsoon 205 23 23 26 18 25Monsoon 150 97 84 35 36 38Post-monsoon 189 77 75 78 79 79

0

50

100

150

200

250

Varia

tion

in E

C

Electrical Conductivity, µmhos/cm

3470 K112 K113 K114 K115 K116Pre-monsoon 4.4 2.2 2.1 2.3 2.2 1.5Monsoon 3.0 3.3 3.5 3.9 3.7 3.0Post-monsoon 5.1 1.9 2.3 1.7 2.1 2.6

0.0

1.0

2.0

3.0

4.0

5.0

6.0

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

3470 K112 K113 K114 K115 K116Pre-monsoon 1600 3540 4080 3040 2960 2280Monsoon 588 1100 1975 1275 1350 650Post-monsoon 663 533 933 1067 900 567

0500

10001500200025003000350040004500

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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3.2 Sasthamkotta Lake

This is considered as the largest fresh water lake in Kerala. It meets the drinking water needs of half million people of Kollam district and also provides fishing resources. The lake is a designated wetland of international importance under the Ramsar Convention since November 2002.The monitoring station under the NWM Programme is at Sasthamkotta, near the pumping station of KeralaWaterAuthority .Karunagappally is the nearest town

2019 SASTHAMKOTTA LAKE

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Sasthamkotta 1385 NWMP

Max 7.2 132 7.4 2.0 430 200

BMin 6.0 114 6.2 1.2 170 10

Mean 6.7 121 6.8 1.7 278 107

Std. Dev 0.3 4.86 0.4 0.3 84.22 53.6

Ambalakkadavu K117 SWMP

Max 7.5 196 7.1 1.9 420 200

BMin 6.4 120 5.8 1.1 200 80

Mean 7.0 160 6.5 1.5 284 111

Std. Dev 0.3 25.98 0.4 0.3 71.15 32.04

KWA PumphouseK118 SWMP

Max 7.3 193 7.1 2.0 870 210

BMin 6.2 126 5.7 1.1 120 70

Mean 7.0 158 6.4 1.6 371 105

Std. Dev 0.4 20.39 0.6 0.3 220.6 40.79

Kottakuzhy K119 SWMP

Max 7.9 183 7.0 2.4 330 160

BMin 6.8 125 6.2 1.5 190 60

Mean 7.3 156 6.5 2.1 250 104

Std. Dev 0.3 17.92 0.3 0.3 43.28 27.46

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VilantharaK120 SWMP

Max 7.4 198 6.9 2.4 460 160

BMin 6.7 129 6.1 1.7 210 70

Mean 7.0 154 6.5 2.0 301 113

Std. Dev 0.2 21.74 0.3 0.2 81.85 24.62

Pottakannamukku K121 SWMP

Max 7.6 169 6.9 2.7 360 150

BMin 6.8 120 5.8 1.4 130 40

Mean 7.1 146 6.4 2.1 214 84

Std. Dev 0.2 17.58 0.4 0.4 63.17 30.29

Vattolikadavu K122 SWMP

Max 7.6 152 6.9 2.4 370 150

BMin 7.1 130 5.8 1.6 160 80

Mean 7.3 140 6.4 2.0 235 93

Std. Dev 0.2 7.41 0.3 0.3 58.39 20.15

*See Annexure IV

1385 K117 K118 K119 K120 K121 K122Pre-monsoon 6.5 6.8 6.7 7.3 7.2 7.2 7.3Monsoon 6.8 7.1 7.1 7.2 7.0 7.1 7.2Post-monsoon 7.1 7.4 7.2 7.6 6.8 7.1 7.5

5.86.06.26.46.66.87.07.27.47.67.8

Var

iati

on in

pH

pH

1385 K117 K118 K119 K120 K121 K122Pre-monsoon 6.5 6.5 6.4 6.5 6.3 6.2 6.1Monsoon 6.8 6.3 6.0 6.5 6.6 6.9 6.7Post-monsoon 7.3 6.8 6.9 6.5 6.8 6.3 6.6

0.01.02.03.04.05.06.07.08.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

1385 K117 K118 K119 K120 K121 K122Pre-monsoon 120 141 173 168 158 148 141Monsoon 123 164 153 134 147 130 137Post-monsoon 120 187 139 165 155 166 143

020406080

100120140160180200

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

1385 K117 K118 K119 K120 K121 K122Pre-monsoon 1.7 1.3 1.3 2.2 2.3 2.4 2.3Monsoon 1.8 1.5 2.0 2.2 1.8 2.0 1.9Post-monsoon 1.6 1.8 1.7 1.6 1.9 1.7 1.8

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

1385 K117 K118 K119 K120 K121 K122Pre-monsoon 312 332 478 274 354 162 220Monsoon 305 253 273 228 240 245 263Post-monsoon 183 247 323 240 293 260 223

0

100

200

300

400

500

600

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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3.3 Pookode Lake

A major tourist destination in the Wayanad district of Kerala,Pookode is a natural freshwater lake nestling amid evergreen forests and mountain slopes at an altitude of 770 meters above sea level. It is the smallest and highest altitude freshwater lake in Kerala. IIt is the smallest and highest altitude freshwater lake in Kerala. Panamaram, the rivulet which ultimately becomes Kabani River originates from the Pookode lake. It is spread across an area of 8.5 hectares and with a maximum depth of 6.5 metres. The NWMP monitoring station is at Pookode, the nearest town being Kalpetta.

2019 POOKODE LAKE

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml

CLASS*

Boat Jetty K123 SWMP

Max 7.9 42 8.4 1.3 184 166

BMin 7.1 18 5.8 0.3 24 4

Mean 7.5 27 7.3 0.8 72 37

Std. Dev 0.2 5.69 0.8 0.4 43.74 43.46

Deepest Point K124 SWMP

Max 7.7 41 9.3 2.4 122 46

BMin 7.0 20 4.8 0.2 30 2

Mean 7.4 28 7.0 1.2 56 22

Std. Dev 0.2 5.91 1.2 0.9 25.02 16.27

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146

K123 K124 K125 1580 K126Pre-monsoon 7.6 7.4 7.1 6.9 6.7Monsoon 7.5 7.4 7.3 7.2 6.9Post-monsoon 7.3 7.3 7.2 7.1 7.0

6.26.46.66.87.07.27.47.67.8

Var

iati

on in

pH

pH

K123 K124 K125 1580 K126Pre-monsoon 7.1 6.6 6.8 6.6 6.4Monsoon 7.7 7.9 7.5 7.7 7.7Post-monsoon 7.0 6.3 6.1 5.6 5.7

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

K123 K124 K125 1580 K126Pre-monsoon 31 32 33 32 32Monsoon 25 27 26 27 26Post-monsoon 23 22 22 23 22

05

101520253035

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

K123 K124 K125 1580 K126Pre-monsoon 0.9 1.1 1.2 1.4 1.0Monsoon 0.8 1.5 1.2 1.3 1.2Post-monsoon 0.7 0.9 1.0 1.1 0.4

0.00.20.40.60.81.01.21.41.61.8

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

K123 K124 K125 1580 K126Pre-monsoon 68 46 42 45 50Monsoon 56 54 49 61 49Post-monsoon 101 77 59 45 31

0

20

40

60

80

100

120

Var

iati

on in

TC

Total Coliform, MPN/100ml

Silt DepositingZone K125

SWMP

Max 7.5 45 8.4 2.6 86 40

AMin 6.5 19 4.7 0.1 20 0

Mean 7.2 28 6.8 1.2 48 17

Std. Dev 0.3 6.88 1.1 0.8 21.95 14.12

Pookode 1580 NWMP

Max 7.9 43 9.0 2.6 102 40

BMin 6.7 19 5.1 0.3 18 2

Mean 7.0 28 6.7 1.3 50 19

Std. Dev 0.3 6.74 1.8 0.7 26.73 11.46

Second Deepest Point K126

SWMP

Max 7.2 41 9.0 1.8 80 40

AMin 6.3 19 4.4 0.2 20 2

Mean 6.8 28 6.7 0.9 45 16

Std. Dev 0.2 6.08 1.2 0.5 20.11 10.66

*See Annexure IV

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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eStuaRine lakeS

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148

148

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4.1 Akkulam Lake

This lake is located in KazhakkottamandKovalam Bye pass in Thiruvananthapuram district. The Akkulam Lake is, in fact, a part of the Veli Lake, where it joins with the sea.This is a prime picnic spot for both domestic and international tourists. The lake is severely contaminated with wastes from the Thiruvananthapuramcity coming through canals. Water quality monitoring is done under the NWMP at Oruvathilkotta in Kadakampally village.

149

2019 AKKULAM LAKE

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Oruvathilkotta 1383 NWMP

Max 7.9 662 7.2 7.2 2500 1500

DMin 6.4 255 0.1 1.6 430 180

Mean 6.8 508 3.8 4.0 1263 533

Std. Dev 0.5 121.17 2.9 2.0 721.91 456.27

*See Annexure IV

1383Pre-monsoon 6.9Monsoon 6.6Post-monsoon 7.0

6.36.46.56.66.76.86.97.07.1

Var

iati

on

in

pH

pH

1383Pre-monsoon 551Monsoon 408Post-monsoon 568

0

100

200

300

400

500

600

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

1383Pre-monsoon 5.7Monsoon 4.0Post-monsoon 0.2

0.0

1.0

2.0

3.0

4.0

5.0

6.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

1383Pre-monsoon 2.9Monsoon 3.8Post-monsoon 6.2

0.01.02.03.04.05.06.07.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

1383Pre-monsoon 1284Monsoon 1030Post-monsoon 1537

0200400600800

10001200140016001800

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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4.2 Ashtamudi Lake

This lake, which flows through Kollam district is one of the largest and deepest wetland ecosystems in Kerala. Ashtamudi Wetland was included in the list of wetlands of international importance, as defined by the Ramsar Convention for the conservation and sustainable utilization of wetlands. The monitoring station under NWMP is at Neendakara Fishing Harbour which is near to its confluence point with Lakshadweep sea.

2019 ASHTAMUDI LAKE

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Neendakara 1441 NWMP

Max 8.1 19350 5.6 4.0 920 680

Below EMin 7.5 18120 3.4 1.4 480 260

Mean 7.8 18382 4.2 3.1 672 458

Std. Dev 0.2 355.02 0.7 0.9 141.43 141.75

*See Annexure IV

1441Pre-monsoon 7.9Monsoon 7.6Post-monsoon 7.7

7.57.57.67.67.77.77.87.87.97.98.0

Var

iati

on

in

pH

pH

1441Pre-monsoon 18458Monsoon 18453Post-monsoon 18159

1800018050181001815018200182501830018350184001845018500

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

1441Pre-monsoon 4.8Monsoon 3.7Post-monsoon 3.8

0.0

1.0

2.0

3.0

4.0

5.0

6.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

1441Pre-monsoon 2.3Monsoon 3.7Post-monsoon 3.8

0.00.51.01.52.02.53.03.54.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

1441Pre-monsoon 664Monsoon 805Post-monsoon 510

0100200300400500600700800900

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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4.3 Paravur Lake

Paravur Lake in Kollam district occupies an area of 6.62sq.km. The Ithikkara River empties into this lake. The monitoring station under NWMP is at Paravur near The Railway station.

2019 PARAVUR LAKE

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Paravur 1574 NWMP

Max 8 13980 6.6 2.2 410 200

Below E Min 7.4 12260 5.4 1.4 220 100

Mean 7.6 12850 6 1.8 338 152

Std. Dev 0.2 462.46 0.4 0.3 66.49 27.91

*See Annexure IV

1574Pre-monsoon 7.7Monsoon 7.6Post-monsoon 7.7

7.5

7.5

7.6

7.6

7.7

7.7

7.8

Var

iati

on

in

pH

pH

1574Pre-monsoon 13236Monsoon 12753Post-monsoon 12337

118001200012200124001260012800130001320013400

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

1574Pre-monsoon 5.8Monsoon 5.9Post-monsoon 6.5

5.25.45.65.86.06.26.46.6

Var

iati

on

in

Do

Dissolved oxygen, mg/l

1574Pre-monsoon 2.0Monsoon 1.7Post-monsoon 1.7

1.51.51.61.61.71.71.81.81.91.92.02.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

1574Pre-monsoon 346Monsoon 360Post-monsoon 293

050

100150200250300350400

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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4.4 Punnamada Lake

Punnamada Kayal in Kuttanad, Alappuzha district is a part of the Vembanad Lake which is India’s longest lake and the biggest lake in Kerala. The famous Annual Nehru Trophy Boat Race of Kerala is conducted on parts of Punnamada Lake. The Station is located at Punnamad in Alapuzha town.

2019 PUNNAMADA LAKE

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Punnamada 1579 NWMP

Max 7.6 5248 7.7 3.9 1100 600

CMin 6.8 506 2.9 2.1 10 2

Mean 7.2 1857 5.4 2.8 564 317

Std. Dev 0.3 1385.01 1.5 0.5 271.64 171.24

*See Annexure IV

1579Pre-monsoon 7.3Monsoon 7.3Post-monsoon 6.9

6.66.76.86.97.07.17.27.37.4

Var

iati

on

in

pH

pH

1579Pre-monsoon 2894Monsoon 1545Post-monsoon 546

0500

100015002000250030003500

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

1579Pre-monsoon 6.3Monsoon 5.5Post-monsoon 3.9

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

1579Pre-monsoon 3.2Monsoon 2.6Post-monsoon 2.6

0.00.51.01.52.02.53.03.5

Axi

s Ti

tle

Biological oxygen Demand, mg/l

1579Pre-monsoon 492Monsoon 505Post-monsoon 763

0100200300400500600700800900

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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4.5 Vembanadu Lake

Vembanadu Lake, the largest lake in Kerala, spans an area of 2033 sq.km thereby making the second largest wetland ecosystem in India. It is the largest of the Ramsar Sites in the state of Kerala.Vembanadu Lake is bordered by Alappuzha, Kottayam, and Ernakulamdistricts.It is situated at the sea level, and is separated from the Lakshadweep sea by a narrow barrier island. The lake is fed by 10 rivers flowing into it including the six major rivers of central Kerala namely the Achenkovil, Manimala, Meenachil, Muvattupuzha, Pamba and Periyar. The Vembanadu lake has two NWMP sampling stations viz, Pathiramanal (MuhammaGramaPanchayath, Alapuzha) and Oil Tanker Jetty (Near Offshore Road, Kochi).

2019 VEMBANADU LAKE

River Stations pHEC

µmhos/cmDO

mg/lBODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Pathiramanal 2312 NWMP

Max 7.5 9120 7.9 3.9 310 180

EMin 6.8 713 6.1 0.9 10 2

Mean 7.1 2909 7.1 2.7 128 60

Std. Dev 0.2 2376.11 0.5 0.9 94.76 57.2

Oil Tanker Jetty 1575 NWMP

Max 8.0 44000 8.4 3.6 310000 140000

Below EMin 6.8 1200 2.5 0.8 840 430

Mean 7.2 24300 5.3 2.0 48420 22040

Std. Dev 0.3 14250.76 1.6 0.9 95881.42 42217.11

*See Annexure IV

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154

2312 1575Pre-monsoon 7.1 7.2Monsoon 7.3 7.1Post-monsoon 7.0 7.6

6.76.86.97.07.17.27.37.47.57.67.7

Var

iati

on

in

pH

pH

2312 1575Pre-monsoon 6.8 4.6Monsoon 7.2 6.1Post-monsoon 7.5 5.4

0.01.02.03.04.05.06.07.08.0

Var

iati

on

in

Do

Dissolved oxygen, mg/l

2312 1575Pre-monsoon 4612 37256Monsoon 2403 13208Post-monsoon 745 17500

05000

10000150002000025000300003500040000

Var

iati

on

in

EC

Electrical Conductivity, µmhos/cm

2312 1575Pre-monsoon 3.2 1.7Monsoon 2.4 1.7Post-monsoon 2.2 3.0

0.00.51.01.52.02.53.03.5

Var

iati

on

in

Bo

D

Biological oxygen Demand, mg/l

2312 1575Pre-monsoon 140 13788Monsoon 155 6825Post-monsoon 73 161600

020000400006000080000

100000120000140000160000180000

Var

iati

on

in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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4.6 Kodungallur Lake

This is one among the major back waters in Kerala and is located in thrissur district. One of the Periyar tributary (Mangalapuzha branch) and Chalakudy River joins Kodungallur lake. The monitoring station under NWMP is located at Kodungallur.

2019 KODUNgALLUR LAKE

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Kodungallur 1577 NWMP

Max 7.8 27500 7.2 2.0 3400 2100

Below EMin 3.9 504 4.4 0.2 480 220

Mean 7 16368 6.0 1.2 1626 836

Std. Dev 1.0 8441.44 1.0 0.6 934.55 533.78

*See Annexure IV

1577Pre-monsoon 7.3Monsoon 6.6Post-monsoon 7.3

6.0

6.2

6.4

6.6

6.8

7.0

7.2

7.4

Var

iati

on in

pH

pH

1577Pre-monsoon 22168Monsoon 14669Post-monsoon 8967

0

5000

10000

15000

20000

25000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

1577Pre-monsoon 6.5Monsoon 5.2Post-monsoon 6.1

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

Var

iati

on in

Do

Dissoved oxygen, mg/l

1577Pre-monsoon 1.0Monsoon 1.5Post-monsoon 1.3

0.00.20.40.60.81.01.21.41.6

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

1577Pre-monsoon 1022Monsoon 1700Post-monsoon 2533

0

500

1000

1500

2000

2500

3000

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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4.7 Kayamkulam Lake

Kayamkulam Kayal, is a shallow brackish water lagoon stretching between Panmanaand Karthikapally in Alapuzha district. It has an outlet to the Arabian seaat Kayamkulam barrage. The monitoring station under NWMP is at Kayamkulam.

2019 KAYAMKULAM LAKE

River Stations pH EC µmhos/cm

DO mg/l

BODmg/l

TCMPN/100ml

FC MPN/100ml CLASS*

Kayamkulam 1578 NWMP

Max 8.2 65248 6.9 5.2 2700 1800

Below EMin 7.5 6458 1.1 0.5 20 2

Mean 8 31121 5.5 3.3 1246 726

Std. Dev 0.2 22035.32 1.7 1.2 907.84 601.5

*See Annexure IV

1578Pre-monsoon 8.1Monsoon 7.9Post-monsoon 7.7

7.5

7.6

7.7

7.8

7.9

8.0

8.1

8.2

Var

iati

on in

pH

pH

1578Pre-monsoon 51216Monsoon 23885Post-monsoon 7278

0

10000

20000

30000

40000

50000

60000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

1578Pre-monsoon 6.3Monsoon 4.6Post-monsoon 5.3

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

1578Pre-monsoon 3.7Monsoon 2.4Post-monsoon 3.8

0.00.51.01.52.02.53.03.54.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

1578Pre-monsoon 706Monsoon 1430Post-monsoon 1900

0200400600800

100012001400160018002000

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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ReSeRvoiRS, PondS &

Canal StationS

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158

158158

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5.1 Pazhassi Reservoir

The Pazhassi irrigation Project is intended to raise the water level of the PazhassiDam at Kuyiluracross the Valapattanam river in Kannur District. The pazhassi project aims irrigation activities in the district. KWA relies on Pazhassi project as a source of drinking water. The Japan drinking water project and the Kannur international airport are using water from the Pazhassi Reservoir. The Kerala State Electricity Board has envisaged utilization of the water for a small hydro project. The Reservoir has a live storage capacity of 97.5 MCM. Water Quality is monitoring under the NWMP Programme( code 2318) .

2019 PAZHASSI RESERVOIR

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Pazhassi 2318 NWMP

Max 8 92 8.1 1.2 500 160

BMin 6.7 36 6.3 0.1 40 5

Mean 7.4 66 7.5 0.6 251 53

Std. Dev 0.4 17.54 0.5 0.4 167.6 42.43

*See Annexure IV

2318Pre-monsoon 7.8Monsoon 7.1Post-monsoon 7.2

6.6

6.8

7.0

7.2

7.4

7.6

7.8

8.0

Var

iati

on in

pH

pH

2318Pre-monsoon 80Monsoon 59Post-monsoon 55

0102030405060708090

Var

itio

n in

EC

Electrical Conductivity, µmhos/cm

2318Pre-monsoon 7.6Monsoon 7.6Post-monsoon 7.1

6.86.97.07.17.27.37.47.57.67.7

Var

iati

on in

Do

Dissolved oxygen, mg/l

2318Pre-monsoon 0.6Monsoon 0.5Post-monsoon 0.9

0.00.10.20.30.40.50.60.70.80.91.0

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

2318Pre-monsoon 153Monsoon 363Post-monsoon 267

050

100150200250300350400

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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5.2 Edamalayar Reservoir

The Edamalayar Reservoir is created by the Edamalayar Dam located near Bhoothathankettu, on the Edamalayarriver, a tributary of the Periyar River in Kerala. This multi purpose reservoir covers 28.3 km2 in the western ghats. The reservoir storage is utilizing for hydroelectric power generation and also benefit the Edamalyar Irrigation Development Project.

2019 EDAMALAYAR RESERVOIR

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Edamalayar 2330 NWMP

Max 8 37 9.2 3 320 250

BMin 6.8 19 6.4 0.2 10 4

Mean 7.1 26 7.7 1 108 48

Std. Dev 0.4 5.92 0.8 0.9 101.45 67.84

*See Annexure IV

2330Pre-monsoon 7.0Monsoon 7.1Post-monsoon 7.3

6.96.97.07.07.17.17.27.27.37.37.47.4

Var

iati

on in

pH

pH

2330Pre-monsoon 24Monsoon 33Post-monsoon 20

0

5

10

15

20

25

30

35

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2330Pre-monsoon 7.2Monsoon 8.0Post-monsoon 8.1

6.66.87.07.27.47.67.88.08.2

Var

iati

on in

Do

Dissolved oxygen, mg/l

2330Pre-monsoon 0.7Monsoon 0.8Post-monsoon 1.7

0.00.20.40.60.81.01.21.41.61.8

Var

iati

on in

Bo

D

Biological oxyygen Demand, mg/l

2330Pre-monsoon 68Monsoon 173Post-monsoon 87

020406080

100120140160180200

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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5.3 Bhoothathankettu Reservoir

The Bhoothathankettu dam built across Periyar river lies in Pindimana village near Kothamangalam, Ernakulam district. This Dam is intended for power generation as well as for irrigation through connected channels for Periyar Valley Project.

2019 BHOOTHATHANKETTU RESERVOIR

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Bhoothathankettu 2329 NWMP

Max 7.6 47 9.3 2.7 4600 2500

CMin 6.7 21 6.6 0.2 110 58

Mean 7.1 35 7.5 1.1 1188 737

Std. Dev 0.3 7.67 0.8 0.8 1398.82 879.47

*See Annexure IV

2329Pre-monsoon 7.0Monsoon 7.3Post-monsoon 7.0

6.97.07.07.17.17.27.27.37.3

Var

iati

on in

pH

pH

2329Pre-monsoon 35Monsoon 36Post-monsoon 36

34343535353535363636

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2329Pre-monsoon 7.3Monsoon 7.5Post-monsoon 7.8

7.07.17.27.37.47.57.67.77.87.9

Var

iati

on in

Do

Dissolved oxygen, mg/l

2329Pre-monsoon 0.5Monsoon 1.5Post-monsoon 1.8

0.00.20.40.60.81.01.21.41.61.82.0

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

2329Pre-monsoon 240Monsoon 840Post-monsoon 3233

0

500

1000

1500

2000

2500

3000

3500

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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5.4 Malampuzha Reservoir

The Malampuzha reservoir is the largest reservoir in Kerala. Located in Palakkad district,the dam is built across Malampuzha river, a tributary of the Bharathapuzha. This dam has a total capacity of 226 million cubic metres. The water is mainly utilized for irrigating paddy fields of Palakkad District.

2019 MALAMPUZHA RESERVOIR

River Stations pH EC µmhos/cm DO mg/l BOD

mg/lTC

MPN/100mlFC

MPN/100ml CLASS*

Malampuzha 2328 NWMP

Max 7.6 130 7.8 2.8 700 490

BMin 6.8 82 6.2 0.6 0 0

Mean 7.2 106 7.1 1.2 234 105

Std. Dev 0.3 17.6 0.5 0.6 241.9 145.69

*See Annexure IV

2328Pre-monsoon 7.1Monsoon 7.1Post-monsoon 7.4

6.97.07.07.17.17.27.27.37.37.47.4

Var

iati

on in

pH

pH

2328Pre-monsoon 93Monsoon 123Post-monsoon 104

0

20

40

60

80

100

120

140

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2328Pre-monsoon 7.2Monsoon 6.9Post-monsoon 7.3

6.7

6.8

6.9

7.0

7.1

7.2

7.3

Var

iati

on in

Do

Dissolved oxygen, mg/l

2328Pre-monsoon 1.2Monsoon 1.4Post-monsoon 0.8

0.00.20.40.60.81.01.21.41.6

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

2328Pre-monsoon 224Monsoon 121Post-monsoon 400

050

100150200250300350400450

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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5.5 Periyar (Thekkady) Reservoir

This is a splendid artificial lake formed by the Mullaperiyar Dam across the PeriyarRiver.It lies within the Periyar wild life sanctuary which spread across 777km2 of which 360 km2 is the thick ever green forest. The Periyar Tiger Reserve is apartof it. The NWMP sampling station is at Thekkady. The sampling stations under SWMP are located at five locations ie; at Canal Shutter, Boat Landing, Dam site, Padikkayam, and at Thannikkudy.

2019 PERIYAR (THEKKADY) RESERVOIR

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Canal Shutter K127

SWMP

Max 7.6 69 6.9 0.9 3000 1300

CMin 6.6 41 4.9 0.1 400 50

Mean 7.2 51 6.3 0.5 1225 608

Std. Dev 0.3 9.44 0.6 0.3 646.49 285.11

Boat Landing K128 SWMP

Max 7.9 58 7.3 0.8 2600 1200

CMin 6.4 38 5.2 0.2 250 100

Mean 7.3 49 6.9 0.4 1075 541.67

Std. Dev 0.4 6.86 0.6 0.2 640.84 326.02

Thekkady1576

NWMP

Max 7.9 60 7.9 0.9 1100 750

CMin 6.8 41 6.2 0.1 0 0

Mean 7.5 48 7.1 0.4 554 209

Std. Dev 0.3 6.41 0.5 0.2 427.52 239.84

Padikkayam K129 SWMP

Max 8.0 61 7.9 0.9 1200 650

CMin 6.8 42 6.2 0.1 100 100

Mean 7.6 51 7.3 0.4 554 275

Std. Dev 0.3 7.26 0.5 0.2 323.62 163.64

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164

K127 K128 1576 K129 K130Pre-monsoon 7.0 7.1 7.3 7.4 7.3Monsoon 7.2 7.2 7.5 7.7 7.5Post-monsoon 7.5 7.8 7.8 7.9 7.9

6.46.66.87.07.27.47.67.88.08.2

Var

iati

n in

pH

pH

K127 K128 1576 K129 K130Pre-monsoon 6.4 7.0 6.9 7.1 7.4Monsoon 6.1 6.6 7.0 7.4 7.3Post-monsoon 6.5 6.9 7.5 7.4 7.7

0.01.02.03.04.05.06.07.08.09.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

K127 K128 1576 K129 K130Pre-monsoon 56 53 51 54 56Monsoon 52 48 50 51 48Post-monsoon 43 43 43 44 44

0

10

20

30

40

50

60

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

K127 K128 1576 K129 K130Pre-monsoon 0.4 0.4 0.5 0.3 0.4Monsoon 0.5 0.4 0.3 0.5 0.4Post-monsoon 0.5 0.4 0.3 0.5 0.4

0.0

0.1

0.2

0.3

0.4

0.5

0.6

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

K127 K128 1576 K129 K130Pre-monsoon 990 810 470 575 400Monsoon 1238 1213 675 575 575Post-monsoon 1600 1333 533 683 600

0200400600800

10001200140016001800

Var

iati

on in

TC

Total Coliform, MPN/100ml

Thannikudy K130

SWMP Max 8.0 63 7.8 0.7 1000 500

BMin 6.8 39 6.7 0.1 100 100

Mean 7.5 50 7.4 0.4 442 188

Std. Dev 0.4 7.61 0.4 0.2 306.59 148.65

*See Annexure IV

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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Kerala State Pollution Control Board

5.6 Karapuzha Reservoir

Karapuzha Dam is located in the Waynad district of Kerala, is one of the biggest earth dams in India. It is across the Karapuzha river, a tributary of the river Kabani. Situated at Vazhavatta, 16 km away from Kalpetta town, the main purpose of the reservoir is irrigation and drinking water source forKalpetta Municipality.

2019 KARAPUZHA RESERVOIR

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Karapuzha Dam 3458 NWMP

Max 7.1 190 8.0 2.0 112 56

AMin 6.5 100 5.1 0.1 15 2

Mean 6.7 123 6.8 1.1 48 20

Std. Dev 0.2 22.99 0.9 0.6 28.4 15.5

*See Annexure IV

3458Pre-monsoon 6.7Monsoon 6.7Post-monsoon 6.8

6.66.66.66.66.76.76.76.76.76.86.8

Var

iati

on in

pH

pH

3458Pre-monsoon 135Monsoon 117Post-monsoon 109

020406080

100120140160

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

3458Pre-monsoon 6.8Monsoon 6.7Post-monsoon 6.9

6.6

6.7

6.7

6.8

6.8

6.9

6.9

7.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

3458Pre-monsoon 1.4Monsoon 1.0Post-monsoon 0.8

0.00.20.40.60.81.01.21.41.6

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

3458Pre-monsoon 40Monsoon 75Post-monsoon 23

01020304050607080

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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5.7 Mananchira Pond

Mananchira is a manmade freshwater lake, which is situated at the centre of the city of Kozhikode. The lake is 3.49 acres (14,120 m2) in area, is rectangular in shape and is fed by a natural spring. The water of the lake is kept entirely for drinking purpose.

2019 MANANCHIRA POND

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Mananchira 3462 NWMP

Max 8.1 100 9.8 1.0 700 600

BMin 7.0 50 6.6 0.0 49 10

Mean 7.6 80 8.0 0.4 284 161

Std. Dev 0.4 16.01 1.1 0.3 210.78 163.24

*See Annexure IV

3462Pre-monsoon 7.7Monsoon 7.5Post-monsoon 7.8

7.3

7.4

7.5

7.6

7.7

7.8

7.9

Var

iati

on in

pH

pH

3462Pre-monsoon 85Monsoon 82Post-monsoon 69

0102030405060708090

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

3462Pre-monsoon 8.4Monsoon 7.3Post-monsoon 8.5

6.66.87.07.27.47.67.88.08.28.48.6

Var

iati

on in

Do

Dissolved oxygen, mg/l

3462Pre-monsoon 0.2Monsoon 0.6Post-monsoon 0.3

0.0

0.1

0.2

0.3

0.4

0.5

0.6

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

3462Pre-monsoon 118Monsoon 301Post-monsoon 537

0

100

200

300

400

500

600

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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Kerala State Pollution Control Board

5.8 Pond At Padmatheertham

Padmatheertham, the sacred pond is associated with the SreePadmanabhaSwamy Temple, Thiruvananthapuram. The pond, situated in the East Fort was equipped with a constant supply of fresh water from Maruthamkuzhi check dam in the riverKilliyar by means of a channel known as Kochar.andthe polluted spill over from Padmatheertham was connected to the nearby Patrakulam, an outlet from this drained its overflow to the thekanamkarathodu.. Later the drainage system became obsolete,the fresh water supply from Kocharceased andPadmatheertham has to rely on its original aquifers.This pond is widely used by pilgrims for bathing purpose.

2019 PADMATHEERTHAM POND

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Padmatheertham 2325 NWMP

Max 8.2 385 6.6 75 2600 700

EMin 6.1 180 0.1 1.4 200 100

Mean 7.4 269 3.8 9.5 725 209

Std. Dev 0.7 74.89 2.7 20.7 670.77 189.85

*See Annexure IV

2325Pre-monsoon 7.5Monsoon 6.9Post-monsoon 7.6

6.4

6.6

6.8

7.0

7.2

7.4

7.6

7.8

Var

iati

on in

pH

pH

2325Pre-monsoon 216Monsoon 267Post-monsoon 359

050

100150200250300350400

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

2325Pre-monsoon 5.6Monsoon 4.4Post-monsoon 0.1

0.0

1.0

2.0

3.0

4.0

5.0

6.0

Var

iati

on in

Do

Dissolved oxygen, mg/l

2325Pre-monsoon 3.5Monsoon 3.1Post-monsoon 28.1

0.0

5.0

10.0

15.0

20.0

25.0

30.0

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

2325Pre-monsoon 376Monsoon 558Post-monsoon 1530

0200400600800

10001200140016001800

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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5.9 Canoli Canal

The Canoli Canal which was constructed during the British rule for inland water transport is connecting the Korapuzha in the north and the Kallayipuzha in the south in Kozhikode district and is 11.5km long. The canal is facing issues such as weed infestation, discharge of untreated and partially treated waste water from hotels, hospitals, and markets. Thus the Canal is now the receptacle for a major portion of sewage generated in the city and is the major contributor to pollution downstream of Kallayiriver.

2019 CANOLI CANAL

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Canoli3461 NWMP

Max 7.7 43100 7.5 2.1 7800 4900

Below EMin 6.6 195 3.2 0.2 200 100

Mean 7.4 23185 5.1 0.9 2366 1528

Std. Dev 0.3 18082.29 1.4 0.6 2578.35 1552.18

*See Annexure IV

3461Pre-monsoon 7.4Monsoon 7.3Post-monsoon 7.3

7.2

7.3

7.3

7.4

7.4

7.5

7.5

Var

iati

on in

pH

pH

3461Pre-monsoon 39626Monsoon 11271Post-monsoon 11669

05000

1000015000200002500030000350004000045000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

3461Pre-monsoon 5.2Monsoon 5.2Post-monsoon 4.8

4.6

4.7

4.8

4.9

5.0

5.1

5.2

5.3

Var

iati

on in

Do

Dissolved oxygen, mg/l

3461Pre-monsoon 0.6Monsoon 1.0Post-monsoon 1.1

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

3461Pre-monsoon 1594Monsoon 4000Post-monsoon 1473

0500

10001500200025003000350040004500

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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5.10 Palakkattuthazham Thodu

Palakkkattuthazhamthodu is a drainage canal that carries water from Perumbavoor town and nearby areas and joins River Periyar at Mudikkal. The Periyar Valley irrigation canal water also contributes during summer. It carries sewage discharges from the city and enters River Periyar without any treatment. Sampling station under the National Water Quality Programme (NWMP) is located at Mudikkal (code 3469)

2019 PALAKKATTUTHAZHAM THODU

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Palakkattuthazham Thodu 3469 NWMP

Max 7.6 145 7.3 3.5 8400 6300

DMin 6.5 58 2.6 1.1 3500 1500

Mean 6.9 84 4.5 1.9 6550 3892

Std. Dev 0.3 24.28 1.3 0.7 1393.17 1428.58

*See Annexure IV

3469Pre-monsoon 6.9Monsoon 6.8Post-monsoon 6.8

6.7

6.8

6.8

6.9

6.9

7.0

Var

iati

on in

pH

pH

3469Pre-monsoon 66Monsoon 107Post-monsoon 85

0

20

40

60

80

100

120

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

3469Pre-monsoon 4.6Monsoon 4.5Post-monsoon 4.3

4.24.24.34.34.44.44.54.54.64.64.7

Var

iati

on in

Do

Dissolved oxygen, mg/l

3469Pre-monsoon 1.8Monsoon 1.7Post-monsoon 2.3

0.0

0.5

1.0

1.5

2.0

2.5

Varia

tion

in B

oD

Biological oxygen Demand, mg/l

3469Pre-monsoon 5700Monsoon 7050Post-monsoon 7300

010002000300040005000600070008000

Varia

tion

in T

C

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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5.11 Unthithode

Unthithode is the downstream of the combined Kuzhikandamthodu and Panachithodu which joins with Edamula branch of River Periyar near Eloor Ferry. The Kuzhikandamthodu mainly carries effluent from M/s. HIL, M/s. Merchem, M/s. FACT(UD). Panachithodu is a sewage drain. Sampling is station under the National Water Quality Programme (NWMP) is located at Unhithode(code 3467) is near the culvert on the way to Eloor Ferry.

2019 UNTHITHODE

River Stations pH EC µmhos/cm

DOmg/l

BODmg/l

TC MPN/100ml

FCMPN/100ml CLASS*

Unthithode 3467 NWMP

Max 7.3 30000 4.8 3.6 110000 70000

Below E Min 6.5 319 1.5 1 5400 2600

Mean 7.0 11548 2.9 2 24967 14750

Std. Dev 0.2 12097.64 1.0 0.7 36984.92 22654.06

*See Annexure IV

3467Pre-monsoon 7.2Monsoon 6.8Post-monsoon 6.9

6.6

6.7

6.8

6.9

7.0

7.1

7.2

7.3

Var

iati

on in

pH

pH

3467Pre-monsoon 24434Monsoon 3212Post-monsoon 1187

0

5000

10000

15000

20000

25000

30000

Var

iati

on in

EC

Electrical Conductivity, µmhos/cm

3467Pre-monsoon 3.0Monsoon 3.0Post-monsoon 2.8

2.62.72.72.82.82.92.93.03.03.1

Var

iati

on in

Do

Dissolved oxygen, mg/l

3467Pre-monsoon 2.2Monsoon 1.7Post-monsoon 2.2

0.0

0.5

1.0

1.5

2.0

2.5

Var

iati

on in

Bo

D

Biological oxygen Demand, mg/l

3467Pre-monsoon 26760Monsoon 35925Post-monsoon 7367

05000

10000150002000025000300003500040000

Var

iati

on in

TC

Total Coliform, MPN/100ml

Season PeriodPre monsoon January-May

Monsoon June-SeptemberPost Monsoon October-December

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Well StationS

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6.1 Well At Pappanamcode - 1581

Latitude : 08028’27”NLongitude : 76058’87”EType : Trend Station Narrative : Open well near National Highway in Pappanamcode. Nemom village,Thiruvananthapuram

173

Code 1581 At Pappanamcode

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 5.7 152 3.4 400 200

Min 4.5 152 0.9 310 100

Mean 5.1 152 2.15 355 150

Std.Dev 0.85 0 1.77 63.64 70.71

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174

6.2 Well At Nedumangadu - 1582

Latitude : 08036’26”NLongitude : 76059’89”EType : Trend Station Narrative : Well at Nedumangad,near Nedumangad Govt

Hospital in Thiruvananthapuram district.

Code 1582 At Nedumangadu

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.2 178 4.1 400 100

Min 5.7 155 1 300 100

Mean 6.0 167 2.6 350 100

Std.Dev 0.4 16.26 2.2 70.71 0

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Kerala State Pollution Control Board

6.3 Well At Kundara - 1583

Latitude : 08053’62”NLongitude : 76036’25”EType : Trend Station Narrative : Open well near Kundara Ceramic factory

in Kollam district.

Code 1583 At Kundara

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.7 166 1.2 100 48

Min 6.5 156 1.2 70 20

Mean 6.6 161 1.2 85 34

Std.Dev 0.1 7.07 0 21.21 19.8

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6.4 Well At KMML - 2315

Latitude : 09000’46”NLongitude : 76032’14”EType : Impact Station Narrative : Open well near KMML.Chavara,Kollam

district.

Code 2315 At KMML

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 7.6 234 1.6 110 60

Min 7.5 220 1 110 60

Mean 7.6 227 1.3 110 60

Std.Dev 0.1 9.9 0.4 0 0

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Kerala State Pollution Control Board

6.5 Well At Kureepuzha - 2314

Latitude : 08054’44”NLongitude : 76033’54”EType : Trend Station Narrative : Open well located at Kureepuzha

near Chandy Depot Kollam

Code 2314 At Kureepuzha

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.9 210 1.4 140 79

Min 6.8 176 1.1 84 27

Mean 6.9 193 1.3 112 53

Std.Dev 0.1 24.04 0.2 39.6 36.77

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178

6.6 Well At Punalur - 0035

Latitude : 08059’59”NLongitude : 76055’22”EType : Impact Station Narrative : Open well station located at Punalur

near Kallada River in Kollam District.

Code 0035 At Punalur

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.9 154 1 79 26

Min 5.8 148 1 60 10

Mean 6.4 151 1 70 18

Std.Dev 0.8 4.24 0 13.44 11.31

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Kerala State Pollution Control Board

6.7 Well At Fathimapuram - 2308

Latitude : 09026’41”NLongitude : 76033’20”E Type : Impact Station Narrative : Public well loated near Fathimapuram

Municipal waste dump site in Perunna village,Changanasserry

Taluk in Kottayam district

Code 2308 At Fathimapuram

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 7.3 247 1 4100 2000

Min 7 197 0.6 540 280

Mean 7.2 222 0.8 2320 1140

Std.Dev 0.2 35.36 0.3 2517.3 1216.22

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6.8 Well At Karoor - 2309

Latitude : 09040’47”NLongitude : 76042’35”E Type : Impact Station Narrative : Open well at Lalam

village,Meenachil taluk in Pala Municipality in Kottayam District

Code 2309 At Karoor

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 7.5 304 0.6 3600 1800

Min 7.1 76 0.1 49 2

Mean 7.3 190 0.4 1825 901

Std.Dev 0.3 161.22 0.4 2510.94 1271.38

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Kerala State Pollution Control Board

6.9 Well At Vaikom - 2310

Latitude : 09045’06”NLongitude : 76023’44”EType : Impact Station Narrative : Public well located in Naduvila village, Vaikom

Municipality near Vaikom municipality waste dumpsite.

Code 2310 At Vaikom

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.8 198 0.3 2400 1300

Min 6.6 91 0.2 140 69

Mean 6.7 145 0.25 1270 685

Std.Dev 0.1 75.66 0.1 1598.06 870.45

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6.10 Well At Vadavathoor - 2311

Latitude : 09036’12”NLongitude : 76033’36”EType : Impact Station Narrative : Public well located at Vadavathoor in

Vijayapuram Village, Kotttayam taluk near Kottayam municipality waste dumpsite

Code 2311 At Vadavathoor

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.7 160 0.4 4900 2400

Min 6.6 103 0.3 600 280

Mean 6.7 132 0.4 2750 1340

Std.Dev 0.1 40.31 0.1 3040.56 1499.07

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Kerala State Pollution Control Board

6.11 Well At Cherthala - 1584

Latitude : 09041’33”NLongitude : 76019’26”EType : Impact Station Narrative : Open well at Cherthala in Alappuzha district

Code 1584 At Cherthala

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.9 412 1.7 790 280

Min 6.8 299 1.1 100 10

Mean 6.9 356 1.4 445 145

Std.Dev 0.1 79.9 0.4 487.9 190.92

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6. 12 Well At Sarvodayapuram - 2313

Latitude : 09033’18”NLongitude : 760 19’17’’EType : Impact Station Narrative : Open well located at Sarvodayapuram,in Kalavoor Panchayat near Municipal waste dumping yard of

Alappuzha muncipality

Code 2313 At Sarvodayapuram

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 7.6 485 1.2 400 200

Min 7.5 268 1.2 100 49

Mean 7.6 377 1.2 250 125

Std.Dev 0.1 153.44 0 212.13 106.77

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Kerala State Pollution Control Board

6.13 Well At Vyttila - 1585

Latitude : 09058’08”N Longitude : 76019’01”EType : Domestic Station Narrative : Well located at Vytilla in Kochi

Corporation in Ernakulam district.

Code 1585 At Vytilla

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 7.7 520 1.4 2300 1200

Min 7.5 277 0.2 240 100

Mean 7.6 399 0.8 1270 650

Std.Dev 0.1 171.83 0.9 1456.64 777.82

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6.14 Well At Edayar - 1586

Latitude : 10005’18”N Longitude : 76018’09”EType : Domestic Station Narrative : Open Well located at Edayar near

Industrial area in Kadungalloor panchayath in Ernakulam district.

Code 1586 At Edayar

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.5 352 1.1 7900 6300

Min 6.2 244 0.2 700 270

Mean 6.4 298 0.7 4300 3285

Std.Dev 0.2 76.37 0.6 5091.17 4263.85

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Kerala State Pollution Control Board

6.15 Well At Brahmapuram - 2323

Latitude : 09059’28”NLongitude : 76021’49”EType : ImpactStation Narrative : Well at Brahmapuram in Vadavukode

Puthencruz panchayath in Ernakulam district near municipal solid waste treatment yard

Code 2323 At Brahmapuram

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.9 218 0.6 2200 1000

Min 6.5 174 0.3 700 480

Mean 6.7 196 0.5 1450 740

Std.Dev 0.3 31.11 0.2 1060.66 367.7

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6.16 Well At Eloor - 0019

Latitude : 10004’80”NLongitude : 76017’55”EType : Impact Station Narrative : Well at Eloor in Eloor Panchayath,

Ernakulam district.

Code 0019 At Eloor

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.2 145 0.2 1700 700

Min 5.9 140 0.2 490 340

Mean 6.1 143 0.2 1095 520

Std.Dev 0.2 3.53 0 855.6 254.56

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6.17 Well At Kalamassery - 1587

Latitude : 10002’ 50”NLongitude : 76019’00”EType : Impact Station Narrative : Open Well located at Kalamassery in Kalamassery municipality near to NH 47 in Ernakulam district.

Code 1587 At Kalamassery

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 7 340 0.2 540 240

Min 6.2 268 0.2 540 100

Mean 6.6 304 0.2 540 170

Std.Dev 0.6 50.91 0 0 98.99

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190

6.18 Well At Poonkunnam - 1588

Latitude : 10022’48”NLongitude : 76012’48”EType : Impact Station Narrative : Well at Poonkunnam in Thrissur Corporation.

Code 1588 At Poonkunnam

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.3 267 1.1 2000 280

Min 6 160 0.9 310 100

Mean 6.2 214 1 1155 190

Std.Dev 0.2 75.66 0.1 1195.01 127.28

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6.19 Well At Laloor - 2321

Latitude : 10030’91”NLongitude : 76011’15”EType : Impact Station Narrative : Well at Laloor in Ayyanthol near the MSW

dump site in Thrissur Corporation.

Code 2321 At Laloor

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.1 264 0.7 400 10

Min 5.9 180 0.4 100 10

Mean 6 222 0.6 250 10

Std.Dev 0.1 59.4 0.2 212.13 0

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6.20 Well At Ollur - 2322

Latitude : 10028’90”NLongitude : 76011’11”EType : Impact Station Narrative : Open well in Ollur village,Thrissur Corporation located in the market place.

Code 2322 At Ollur

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 5.8 140 1.2 1000 100

Min 5 130 0.8 200 10

Mean 5.4 135 1 600 55

Std.Dev 0.6 7.07 0.3 565.69 63.64

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6.21 Well At Karukamani - 2327

Latitude : 10041’76”NLongitude : 76043’42”EType : Domestic Station Narrative : Public well in Karukamoni,Chitoor Taluk

in Palakkad district.

Code 2327 At Karukamani

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 8 770 1.4 550 10

Min 7.2 768 0.5 29 10

Mean 7.6 769 1.0 290 10

Std.Dev 0.6 1.41 0.6 368.4 0

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194

6.22 Well At Malappuram - 1589

Latitude : 11002’48”NLongitude : 76005’03”EType : Impact Station Narrative : Partially covered well at Malappuram in Malappuram Down Hill market area.

Code 1589 At Malappuram

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 7.6 730 1.6 84 34

Min 6.5 332 0.3 24 10

Mean 7.1 531 1.0 54 22

Std.Dev 0.8 281.43 0.9 42.43 16.97

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6.23 Well At Manjeri - 2320

Latitude : 11006’40”NLongitude : 76008’26”EType : Impact Station Narrative : Well located in Government HSS Manjeri in Manjeri

Town Malappuram district.

Code 2320 At Manjeri

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 7.3 256 1.6 70 38

Min 6.3 236 0.5 18 10

Mean 6.8 246 1.1 44 24

Std.Dev 0.7 14.14 0.8 36.77 19.8

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196

6.24 Well At Chungappally - 0022

Latitude : 11014’61”NLongitude : 75053’89”EType : Impact Station Narrative : Public well located in Mavoor panchayath in Kozhikode district

Code 0022 At Chungappally

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.8 123 0.5 1000 630

Min 6.4 66 0.2 170 81

Mean 6.6 94.5 0.4 585 355.5

Std.Dev 0.3 40.31 0.2 586.9 388.2

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6.25 Well At Mavoor - 1590

Latitude : 11015’65”NLongitude : 75057’11”EType : Domestic Station Narrative : Public well located in Mavoor panchayath in

Kozhikode district

Code 1590 At Mavoor

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.6 103 0.2 320 150

Min 6.4 92 0.1 260 120

Mean 6.5 98 0.2 290 135

Std.Dev 0.1 7.78 0.1 42.43 21.21

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6.26 Well At Vellipparamba - 3464

Latitude : 11016’08”NLongitude : 76050’30”EType : Trend Station Narrative : Open well near to Medical College

Kozhikode

Code 3463 At Velliparamba

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.2 99 0.7 8400 4600

Min 5.2 80 0.3 540 210

Mean 5.7 90 0.5 4470 2405

Std.Dev 0.7 13.44 0.3 5557.86 3104.2

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6.27 Well At Kannur - 1591

Latitude : 11052’64”NLongitude : 75022’17”EType : Trend Station Narrative : Well station located

at Kannur taluk, Kannur district.

Code 1591 At Kannur

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.7 119 1.2 150 21

Min 4.6 116 0.3 100 20

Mean 5.7 118 0.8 125 21

Std.Dev 1.5 2.12 0.6 35.36 0.71

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200

6.28 Well At Karimbam - 3475

Latitude : 12002’34”NLongitude : 77022’42”EType : Impact Station Narrative : Open well located near to

waste dumping yard in Kannur district.

Code 3475 At Karimbam

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 4.9 96 2 350 40

Min 4.6 67 1.6 49 4

Mean 4.8 82 1.8 200 22

Std.Dev 0.2 20.51 0.28 212.84 25.46

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6.29 Well At Parassinikadavu - 3472

Latitude : 11054’29”NLongitude : 75026’47”EType : ` Domestic Station Narrative : Open well of Parassinikadavu Temple

in Kannur district

Code 3472 At Parassinikadavu

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 8 11750 1 100 10

Min 7 612 0.9 60 10

Mean 7.5 6181 1.0 80 10

Std.Dev 0.7 7875.76 0.1 28.28 0

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202

6.30 Well At Payyannur I - 1592

Latitude : 12008’88”NLongitude : 75012’86”EType : Trend Station Narrative : Well at Payyannur

in Vellur village, Taliparamba Taluk, Kannur district

Code 1592 At Payyannur - I

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.6 359 2.3 150 32

Min 6.6 328 0.9 100 17

Mean 6.6 344 1.6 125 25

Std.Dev 0 21.92 1.0 35.36 10.61

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6.31 Well At Payyannur II - 3474

Latitude : 12007’15”NLongitude : 75012’31”EType : Impact Station Narrative : Open well near waste dumping

yard at Murikoil, Payyannur

Code 3474 At Payyannur -II

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.9 239 2.5 120 40

Min 6.9 148 1.1 100 21

Mean 6.9 194 1.8 110 31

Std.Dev 0 64.35 1.0 14.14 13.44

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204

6.32 Well At Punnelpettipalam - 2317

Latitude : 11043’36”NLongitude : 75030’92”EType : Impact Station Narrative : open well near Punnelpettipalam in Thalasserry Taluk in Kannur district

204

Code 2317 At Punnelpettipalam

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 5.9 308 1.3 60 10

Min 5.5 280 0.9 20 4

Mean 5.7 294 1.1 40 7

Std.Dev 0.3 19.8 0.3 28.28 4.24

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204

Code 2324 Ambalamughal Borewell

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.1 96 1.2 230 120

Min 5.6 66 0.3 10 2

Mean 5.9 81 0.8 120 61

Std.Dev 0.4 21.21 0.6 155.56 83.44

6.33 Well At Ambalamughal Borewell - 2324

Latitude : 9.980 53’26”NLongitude : 76036’72’69”EType : Impact Station Narrative : Ambalamugal borewell in Ernakulam District

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206

Code 2316 At Chelora Trenching ground

2019 pH EC BOD TC FC

Unit µmhos/cm mg/l MPN/100ml MPN/100ml

Max 6.9 140 2.9 460 40

Min 5.1 54 1.8 100 20

Mean 6 97 2.4 280 30

Std.Dev 1.3 60.81 0.8 254.56 14.14

6.34 Well At Chelora Trenching Ground - 2316

Latitude : 11.90010’19”NLongitude : 75.44018’04”EType : Impact Station Narrative : open well at At Chelora Trenching Ground in Kannurdistrict

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GeneRal tRend analySiS oF SeleCted RiveR StationS

(2012-2019)

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7.1.1 ACHENKOVIL AT THUMPAMON - Station Code: 1342

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2012 2013 2014 2015 2016 2017 2018 2019PH 7.2 7.3 7.5 7.4 7.4 7.2 7.2 6.9DO 7.0 6.4 6.7 6.6 6.2 6.9 6.4 5.9

0.02.04.06.08.0

pH & Do trend at Thumpamon

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.4 2.0 1.3 1.2 1.4 1.2 1.5 2.0

0.0

1.0

2.0

3.0

BoD trend at Thumpamon

2012 2013 2014 2015 2016 2017 2018 2019TC 1223 1573 833 165 233 392 273 318FC 236 340 383 85 90 150 98 162

0500

100015002000

TC & fC trend at Thumpamon

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7.1.2 ACHENKOVIL AT CHENNITHALA- Station Code: 1443

2012 2013 2014 2015 2016 2017 2018 2019PH 7.0 7.1 7.4 7.4 7.3 7.1 6.6 6.7DO 6.6 6.0 5.8 6.4 6.4 6.7 6.2 5.6

0.02.04.06.08.0

pH & Do trend at Chennithala

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.1 1.7 1.4 1.4 1.4 1.1 1.4 2.1

0.0

1.0

2.0

3.0

BoD trend at Chennithala

2012 2013 2014 2015 2016 2017 2018 2019TC 670 538 690 736 446 342 526 379FC 275 262 287 290 167 132 187 211

0200400600800

TC & fC trend at Chennithala

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7.2.1 BHARATHAPUZHA AT PATTAMBI - Station Code: 2332

2012 2013 2014 2015 2016 2017 2018 2019PH 8.1 7.9 7.7 7.7 7.3 7.5 7.3 7.4DO 7.1 6.7 6.6 6.7 7.1 7.7 7.6 6.3

0.0

5.0

10.0

pH & Do trend at Pattambi

2012 2013 2014 2015 2016 2017 2018 2019BOD 0.9 0.9 1.6 1.3 1.2 2.5 1.6 2.0

0.0

1.0

2.0

3.0

BoD trend at Pattambi

2012 2013 2014 2015 2015 2017 2018 2019TC 992 426 571 528 228 333 428 367FC 524 191 362 250 174 217 188 159

0500

10001500

TC & fC trend at Pattambi

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7.2.2 BHARATHAPUZHA AT KUTTIPPURAM- Station Code: 2331

2012 2013 2014 2015 2016 2017 2018 2019PH 7.3 7.7 7.3 7.6 7.1 7.4 7.4 7.3DO 6.2 6.9 6.9 7.0 7.6 8.2 7.6 6.5

0.0

5.0

10.0

pH & Do trend at Kuttippuram

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.0 0.7 0.7 0.8 1.2 1.9 1.3 1.8

0.0

1.0

2.0

3.0

BoD trend at Kuttippuram

2012 2013 2014 2015 2016 2017 2018 2019TC 676 443 497 277 270 150 577 328FC 296 255 246 185 167 85 185

0200400600800

TC & fC trend at Kuttippuram

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7.3 CHALAKUDY AT PULICKAKADAVU - Station Code: 1154

2012 2013 2014 2015 2016 2017 2018 2019PH 6.8 6.9 6.9 7.1 6.8 6.6 6.7 6.9DO 6.3 5.6 6.8 7.5 6.4 6.2 6.8 6.4

0.02.04.06.08.0

pH & Do trend at Pulickakadavu

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.2 1.2 1.1 1.4 1.2 1.5 1.6 0.9

0.00.51.01.52.0

BoD trend at Pulickakadavu

2012 2013 2014 2015 2015 2017 2018 2019TC 780 990 552 277 388 67761 1870 1555FC 224 266 264 168 262 59194 685 696

0

10000

20000

30000

40000

50000

60000

70000

80000

TC & fC trend at Pulickakadavu

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7.4.1 CHALIYAR AT CHUNGAPALLY- Station Code: 0021

2012 2013 2014 2015 2015 2017 2018 2019PH 7.3 7.3 7.4 7.4 7.1 7.4 7.4 7.2DO 7.0 6.9 6.6 6.4 6.6 6.3 6.6 7.2

5.56.06.57.07.58.0

pH & Do trend at Chungapally

2012 2013 2014 2015 2016 2017 2018 2019BOD 0.9 0.8 0.8 0.4 0.7 0.8 0.9 0.5

0.0

0.5

1.0

BoD trend at Chungapally

2012 2013 2014 2015 2016 2017 2018 2019TC 503 2440 1760 792 254 377 1802 2904FC 256 1725 1221 501 106 196 984 1820

01000200030004000

TC & fC trend at Chungapally

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7.4.2 CHALIYAR AT KOOLIMADU- Station Code: 0020

2012 2013 2014 2015 2016 2017 2018 2019PH 7.2 7.4 7.5 7.4 7.1 7.3 7.4 7.2DO 7.3 7.3 7.0 6.9 6.7 6.4 7.2 7.6

5.56.06.57.07.58.0

pH & Do trend at Koolimadu

2012 2013 2014 2015 2016 2017 2018 2019BOD 0.6 0.8 0.8 0.8 0.6 0.7 0.8 0.7

0.0

0.5

1.0

BoD trend at Koolimadu

2012 2013 2014 2015 2016 2017 2018 2019TC 893 4208 3691 670 337 286 1139 2391FC 468 2984 2652 465 147 162 617 1685

0200040006000

TC & fC trend at Koolimadu

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7.5 CHANDRAGIRI AT PADIATHADKA- Station Code: 1572

2012 2013 2014 2015 2016 2017 2018PH 7.2 6.9 7.2 7.0 6.7 6.8 7.1 6.9DO 7.4 7.2 7.5 7.5 7.7 7.5 7.5 7.6

6.06.57.07.58.0

pH & Do trend at Padiathadka

2012 2013 2014 2015 2016 2017 2018 2019BOD 0.7 1.3 1.2 1.0 1.0 1.0 1.3 1.4

0.0

0.5

1.0

1.5

BoD trend at Padiathadka

2012 2013 2014 2015 2016 2017 2018 2019TC 255 150 597 730 1316 576 1232 350FC 54 33 75 128 140 97 333 64

0500

10001500

TC & fC trend at Padiathadka

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2012 2013 2014 2015 2016 2017 2018 2019BOD 1.2 1.6 1.6 1.6 1.3 1.4 1.7 2.1

0.0

1.0

2.0

3.0

BoD trend at Thiroorangadi

7.6.1 KADALUNI AT THIROORANGADI- Station Code: 1566

2012 2013 2014 2015 2016 2017 2018 2019PH 6.7 6.9 6.8 6.8 6.8 6.8 6.9 7.0DO 6.0 6.7 6.6 7.0 6.6 6.4 6.6 6.6

5.05.56.06.57.07.5

pH & Do trend at Thiroorangadi

2012 2013 2014 2015 2016 2017 2018 2019TC 680 704 319 67 133 158 106 106FC 253 236 209 29 77 75 54 21

0200400600800

TC & fC trend at Thiroorangadi

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7.6.2 KADALUNDI AT HAJIYARAPPALLY - Station Code: 2293

2012 2013 2014 2015 2016 2017 2018 2019PH 6.8 6.9 6.8 6.8 6.7 7.0 7.0 7.1DO 6.7 6.8 6.9 7.0 6.8 6.5 6.9 6.7

6.06.57.07.5

pH & Do trend at Hajiyarappally

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.0 1.8 1.5 1.6 1.5 1.9 1.6 1.3

0.00.51.01.52.0

BoD trend at Hajiyarappally

2012 2013 2014 2015 2016 2017 2018 2019TC 626 708 235 67 78 376 98 36FC 275 243 78 29 46 184 49 19

0200400600800

TC & fC trend at Hajiyarappally

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7.7 KALLADA AT PERUMTHOTTAMKADAVU- Station Code: 0042

2012 2013 2014 2015 2016 2017 2018PH 7.2 7.1 7.6 7.6 7.6 7.2 7.1 7.0DO 7.1 6.7 7.2 7.2 6.8 7.1 6.8 6.7

6.06.57.07.58.0

pH & Do trend at Perumthottamkadavu

2013 2014 2015 2016 2017 2018 2019BOD 1.6 1.3 1.5 1.3 1.4 1.5 1.6

0.00.51.01.52.0

BoD trend at Perumthottamkadavu

2012 2013 2014 2015 2016 2017 2018TC 608 738 406 664 286 367 249FC 251 313 187 269 105 141 102

0200400600800

TC & fC trend at Perumthottamkadavu

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7.8 MUVATTUPUZHA AT VETTIKATTUMUKKU - Station Code: 0043

2012 2013 2014 2015 2016 2017 2018 2019PH 7.1 7.2 6.7 7.1 6.8 6.9 7.3 7.5DO 6.7 6.8 6.9 6.9 6.8 6.1 6.1 6.9

0.02.04.06.08.0

pH & Do trend at Vettikkatumukku

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.2 0.6 0.6 0.7 0.5 0.7 0.5 0.5

0.0

0.5

1.0

1.5

BoD trend at Vettikattumukku

2012 2013 2014 2015 2016 2017 2018 2019TC 1739 2392 3364 1962 2355 2258 2983 3383FC 964 1200 1890 1118 1236 1233 1558 1808

01000200030004000

TC & fC trend at Vettikkattumukku

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7.9.1 PAMBA AT CHENGANNUR - Station Code: 1156

2012 2013 2014 2015 2016 2017 2018 2019PH 7.0 7.2 6.8 6.6 6.7 6.3 6.4 6.4DO 6.0 6.1 5.1 5.7 4.7 5.5 5.7 6.4

0.02.04.06.08.0

pH & Do trend at Chengannoor

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.0 0.7 0.6 0.7 0.6 0.4 0.6 0.7

0.0

0.5

1.0

1.5

BoD trend at Chengannoor

2012 2013 2014 2015 2016 2017 2018TC 493 311 303 1962 317 348 476 599FC 243 181 170 1118 162 211 299 364

0100020003000

TC & fC trend at Chengannoor

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7.9.2 PAMBA AT PARUMALA - Station Code: 1565

2012 2013 2014 2015 2016 2017 2018 2019PH 7.2 7.0 6.9 6.8 6.7 6.5 6.4 6.5DO 4.5 4.2 3.7 6.1 3.6 4.0 4.4 5.1

0.02.04.06.08.0

pH & Do trend at Parumala

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.0 0.7 0.5 1.4 0.8 0.7 0.9 1.5

0.00.51.01.52.0

BoD trend at Parumala

2012 2013 2014 2015 2016 2017 2018 2019TC 537 420 294 13055 374 415 403 465FC 279 240 162 9136 197 257 250 253

05000

1000015000

TC & fC trend at Parumala

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7.9.3 PAMBA AT THAKAZHI - Station Code: 1341

2012 2013 2014 2015 2016 2017 2018 2019PH 7.1 7.0 6.8 6.3 6.9 6.4 6.4 6.5DO 4.4 4.3 4.8 4.4 3.7 3.9 4.5 4.2

0.02.04.06.08.0

pH & Do trend at Thakazhi

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.5 0.7 0.7 1.3 0.6 0.7 0.9 1.9

0.0

1.0

2.0

3.0

BoD trend at Thakazhi

2012 2013 2014 2015 2016 2017 2018TC 722 391 341 1201 342 433 466FC 358 222 218 831 206 267 303

0500

10001500

TC & fC trend at Thakazhi

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7.10.1 PERIYAR AT KALADY - Station Code: 0018

2012 2013 2014 2015 2016 2017 2018 2019PH 7.2 7.2 7.0 7.1 7.5 6.8 6.6 7.1DO 7.5 7.2 7.1 7.0 5.9 6.8 6.5 6.7

0.02.04.06.08.0

pH & Do trend at Kalady

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.1 1.3 1.0 1.2 0.9 1.4 1.2 1.1

0.0

0.5

1.0

1.5

BoD trend at Kalady

2012 2013 2014 2015 2016 2017 2018 2019TC 1134 828 527 203 550 3978 2511 2683FC 282 216 294 102 410 1658 928 1477

0200040006000

TC & fC trend at Kalady

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7.10.2 PERIYAR AT SDP ALUVA - Station Code: 1338

2012 2013 2014 2015 2016 2017 2018PH 7.0 7.0 6.9 6.9 7.0 6.7 6.5 6.7DO 6.8 6.3 6.3 5.8 5.6 6.0 6.1 6.2

0.02.04.06.08.0

pH & Do trend at SDP Aluva

2012 2013 2014 2015 2016 2017 2018PH 7.0 7.0 6.9 6.9 7.0 6.7 6.5 6.7DO 6.8 6.3 6.3 5.8 5.6 6.0 6.1 6.2

0.02.04.06.08.0

pH & Do trend at SDP Aluva

2012 2013 2014 2015 2016 2017 2018 2019TC 1134 1876 790 133 125 12388 4775 4417FC 282 487 382 75 74 11303 2708 2307

050000

100000150000

TC & fC trend at SDP Aluva

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7.10.3 PERIYA AT ELOOR - Station Code: 0017

2012 2013 2014 2015 2016 2017 2018 2019PH 6.9 7.0 6.8 6.9 6.7 6.9 6.7 7.2DO 5.1 5.5 4.8 4.6 4.2 5.1 5.6 6.6

0.02.04.06.08.0

pH & Do trend at Eloor

2012 2013 2014 2015 2016 2017 2018 2019BOD 2.1 2.2 1.8 2.0 1.8 2.1 2.5 1.5

0.0

1.0

2.0

3.0

BoD trend at Eloor

2012 2013 2014 2015 2016 2017 2018 2019TC 1946 1894 611 179 189 3612 2875 6369FC 408 473 298 97 98 2474 2007 2505

02000400060008000

TC & fC trend at Eloor

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7.10.4 PERIYAR AT MUPPATHADAM - Station Code: 2333

2012 2013 2014 2015 2016 2017 2018 2019PH 6.8 7.2 6.9 7.0 6.9 6.7 6.7 0.2DO 5.9 6.4 6.3 6.3 6.5 5.9 6.0 5.8

0.02.04.06.08.0

pH & Do trend at Muppathadam

2012 2013 2014 2015 2016 2017 2018 2019BOD 2.2 1.4 1.3 1.2 1.1 1.4 1.3 0.9

0.0

1.0

2.0

3.0

BoD trend at Muppathadam

2012 2013 2014 2015 2016 2017 2018 2019TC 1520 1357 988 185 198 2951 3174 2758FC 386 362 382 97 110 1840 1508 1202

01000200030004000

TC & fC trend at Muppathadam

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7.10.5 PERIYAR AT KALAMASSERY - Station Code: 2335

2012 2013 2014 2015 2016 2017 2018 2019PH 6.7 7.0 6.9 6.9 6.5 6.5 6.4 7.0DO 4.9 4.6 5.9 5.4 4.5 3.7 4.3 4.8

0.02.04.06.08.0

pH & Do trend at Kalamassery

2012 2013 2014 2015 2016 2017 2018 2019BOD 2.2 1.7 3.2 2.8 2.5 2.1 2.6 1.1

0.01.02.03.04.0

BoD trend at Kalamassery

2012 2013 2014 2015 2016 2017 2018 2019TC 2200 1937 1227 177 194 4118 5317 4825FC 480 631 606 91 120 2553 1878 2286

0200040006000

TC & fC trend at Kalamassery

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7.10.6 PERIYAR AT VETTUKADAVU (PATHALAM) - Station Code: 2334

2012 2013 2014 2015 2016 2017 2018 2019PH 6.7 7.0 6.8 6.9 8.3 6.9 6.7 6.9DO 4.9 5.9 5.6 6.5 4.5 5.7 5.8 6.9

0.0

5.0

10.0

pH & Do trend at Vettukadavu

2012 2013 2014 2015 2016 2017 2018 2019BOD 2.2 2.2 2.0 2.8 2.1 2.6 2.7 1.1

0.0

1.0

2.0

3.0

BoD trend at Vettukadavu

2012 2013 2014 2015 2016 2017 2018 2019TC 2200 1284 778 177 191 4024 3483 5683FC 480 330 403 91 74 2642 1469 2293

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TC & fC trend at Vettukadavu

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7.10.7 PERIYAR AT PURAPPILLIKADAVU - Station Code:2336

2012 2013 2014 2015 2016 2017 2018 2019PH 6.9 6.9 7.1 7.0 6.2 7.0 6.9 7.2DO 6.8 6.5 6.6 6.5 5.9 6.8 6.0 6.3

0.01.02.03.04.05.06.07.08.0

pH and Do Trend at Purappillikadavu

2012 2013 2014 2015 2016 2017 2018 2019BOD 1.4 2.0 1.3 1.2 0.8 1.6 2.2 1.1

0.0

1.0

2.0

3.0

BoD trend at Purappillikadavu

2012 2013 2014 2015 2016 2017 2018 2019TC 1258 1223 1573 833 165 518 2438 1439FC 348 236 340 383 85 303 994 591

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TC & fC trend at Purappillikadavu

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7.11. KARAMANA AT MOONNATTUMUKKU - Station Code: 1155

2012 2013 2014 2015 2016 2017 2018 2019PH 7.1 7.2 7.7 7.3 6.9 6.9 6.9 6.7DO 0.5 2.7 1.9 1.5 1.6 1.7 3.5 1.0

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pH and Do Trend at moonnattumukku

2012 2013 2014 2015 2016 2017 2018 2019BOD 21.2 12.4 26.9 22.0 43.9 42.2 13.9 6.3

0.05.0

10.015.020.025.030.035.040.045.050.0

BoD trend at moonnattumukku

2012 2013 2014 2015 2016 2017 2018 2019TC 15833 18779 37250 31500 36967 39093 41983 58042FC 3317 2867 10883 12800 14642 16478 18533 23217

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TC&fC trend at Moonnattumukku

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WateR Quality aPRil data 2019

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WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Neyyar Mamom Ayoor Karamana Malampuzha

Amaravila 1563

Aruvipuram 2284

Mamom Bridge 2285

Ayoor Bridge 2286

Aruvikkara 3471

Moonnattumukku 1155

Malampuzha 2328

Parameters

Temperature OC 34 34 33 33 37 37 32

pH 7 7.6 6.5 6.3 6.2 7.2 6.9

Conductivity µS/cm 145 147 124 156 101 680 94

Turbidity NTU 0.7 0.5 5 8.7 0.5 10.7 1

Phenoph: Alkalinity 0 0 0 0 0 0 0

Total Alkalinity 30 36 24 38 22 65 32

Chlorides mg/L 15 16 22 20 14 135 5

COD mg/L 16 16 30 10 15.2 52 4

TKN mg/L 0.01 0.01 0.01 0.01 0 0.01 0

Amm- N mg/L 0 0 0 0 0 0 0

Hardness mg/L 54 57 42 55 35 193 42

Calcium as CaCO3 mg/L 29 33 26 32 23 123 26

Magnesium as CaCO3 mg/L 25 24 16 23 12 70 16

Sulphate mg/L 12 6.2 4.5 4 6 35 5

Sodium mg/L 7.8 8 11.5 10 7.7 68 2.5

TDS mg/L 83 83 71 90 57 375 62

TFS mg/L 72 65 52 74 36 352 56

TSS mg/L 50 39 36 38 26 270 10

Phosphate mg/L 0 0 0 0 0 0 0.02

Boron mg/L 0 0 0 0 0 0 0

Potassium mg/L 1.3 0.9 1.4 1.5 1.1 17 0.6

BOD mg/L 1 5.9 2.9 5.5 3 6.5 0.6

Flouride mg/L 0 0 0 0 0 0.00 0.6

DO mg/L 5.9 6.1 4.1 3.7 5.9 1.1 7.1

Nitrate N mg/L 0.22 0.3 0.3 0.1 0.1 2.6 0.5

TC MPN/100ml 400 490 2000 1000 250 43000 20

FC MPN/100ml 200 350 840 310 100 13000 10

Metals

Cadmium mg/L BDL BDL BDL BDL BDL BDL BDL

Copper mg/L BDL BDL BDL BDL BDL BDL BDL

Lead µg/L BDL BDL BDL BDL BDL BDL BDL

Chromium mg/L BDL BDL BDL BDL BDL BDL BDL

Nickel mg/L BDL BDL BDL BDL BDL BDL BDL

Zinc mg/L BDL BDL BDL BDL 12 BDL BDL

Iron mg/L 82 14 BDL 23 50 BDL BDL

Pesticides

Alpha BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Beta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

gamma BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Delta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDL

Aldrin µg/L BDL BDL BDL BDL BDL BDL BDL

Dieldrin µg/L BDL BDL BDL BDL BDL BDL BDL

0P DDT µg/L BDL BDL BDL BDL BDL BDL BDL

PP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Ithikkara Vamanapuram Pallickal Kallada Oruvathilkotta Sasthamkotta

Ayoor 1564

Ithikkara 2287

Vamanapuram 1442

Nellimugal2288

Perumthottakadavu 0042

Oruvathilkotta 1383

Sasthamkotta 1385

ParametersTemperature OC 23 23 35 23 24 37 22pH 7.1 6.8 6.5 6.5 7.3 7.9 6.6Conductivity µS/cm 128 9884 223 128 116 565 120Turbidity NTU 0 0 8.9 0 0 10.6 0Phenoph: Alkalinity 0 0 0 0 0 0 0Total Alkalinity 28 32 50 26 20 68 24Chlorides mg/L 24 3568 22 24 21 120 32COD mg/L 9.8 24 80 7 9.6 12 6.4TKN mg/L 0.01 0.01 0.01 0.01 0.01 0.01 0.01Amm- N mg/L 0 0 0 0 0 0 0Hardness mg/L 44 660 77 44 38 170 38Calcium as CaCO3 mg/L 28 380 48 26 22 110 26Magnesium as CaCO3 mg/L 16 280 29 18 16 60 12Sulphate mg/L 0 8 15 2.6 5.3 22 1.5Sodium mg/L 12 1878 11.1 12.4 10.8 60 16TDS mg/L 80 6088 128 86 72 330 84TFS mg/L 60 3816 112 60 56 312 38TSS mg/L 42 40 89 38 36 256 30Phosphate mg/L 0 0 0 0 0 0 0Boron mg/L 0 0 0 0 0 0 0Potassium mg/L 2.8 82 5.1 1.9 2 1.4 2.5BOD mg/L 2 2.1 3.8 2 2 1.8 1.8Flouride mg/L 0 0 0 0 0 0 0DO mg/L 6.2 6 5.4 6 6.2 5 6.2Nitrate N mg/L 0.98 1.20 0.3 0.66 0.64 0.1 54TC MPN/100ml 380 490 1400 470 410 600 320FC MPN/100ml 210 280 940 280 280 210 140

MetalsCadmium mg/L BDL BDL BDL BDL BDL BDL BDLCopper mg/L BDL BDL BDL BDL BDL BDL BDLLead µg/L BDL BDL BDL BDL BDL BDL BDLChromium mg/L BDL BDL BDL BDL BDL BDL BDLNickel mg/L BDL BDL BDL BDL BDL BDL BDLZinc mg/L 21 124 BDL 94 BDL BDL 37Iron mg/L 642 332 42 297 45 BDL 961

PesticidesAlpha BHC µg/L BDL BDL BDL BDL BDL BDL BDLBeta BHC µg/L BDL BDL BDL BDL BDL BDL BDLgamma BHC µg/L BDL BDL BDL BDL BDL BDL BDLDelta BHC µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDLAldrin µg/L BDL BDL BDL BDL BDL BDL BDLDieldrin µg/L BDL BDL BDL BDL BDL BDL BDL0P DDT µg/L BDL BDL BDL BDL BDL BDL BDLPP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Achenkovil Pamba

Thumpamon 1342

Chennithala1443

Kallarakkadavu 3465

Pandalam3466

Chengannur 1156

Thakazhi 1341

Pamba Down 1565

Parameters

Temperature OC 24 23 23 23 30 32 32

pH 7.3 6.5 6.8 7.2 6.1 6.6 6.4

Conductivity µS/cm 132 124 124 122 55 93 72

Turbidity NTU 0 0 0 0 8.8 10.4 7.3

Phenoph: Alkalinity 0 0 0 0 0 0 0

Total Alkalinity 30 28 26 28 10 11 10

Chlorides mg/L 20 23 20 22 10 16 10

COD mg/L 9.2 7.8 7 8 3.2 9.6 3.2

TKN mg/L 0.02 0.01 0.01 0.01 0.20 0.32 0.26

Amm- N mg/L 0 0 0 0 0.14 0.2 0.18

Hardness mg/L 42 46 44 46 14 30 26

Calcium as CaCO3 mg/L 28 28 24 30 10 18 16

Magnesium as CaCO3 mg/L 14 18 20 16 4 12 10

Sulphate mg/L 0 2.6 4 5 4.3 6.9 8

Sodium mg/L 10.4 11.8 9.9 11.8 5.1 7.8 5.1

TDS mg/L 80 84 76 80 35 58 41

TFS mg/L 62 62 48 46 30 52 35

TSS mg/L 38 44 20 38 24 47 30

Phosphate mg/L 0 0 0 0 0 0 0

Boron mg/L 0 0 0 0 0 0 0

Potassium mg/L 2.5 2.4 2.2 2.6 0.47 0.61 0.53

BOD mg/L 2.4 2.4 2 2.4 0.8 2.5 0.5

Flouride mg/L 0 0 0 0 0.20 0.30 0.25

DO mg/L 5.4 5.2 6 5.4 5.3 3.7 6.2

Nitrate N mg/L 0.76 0.7 0.72 0.68 0.29 0.41 0.37

TC MPN/100ml 460 480 400 610 600 410 480

FC MPN/100ml 280 310 240 370 170 110 150

Metals

Cadmium mg/L BDL BDL BDL BDL BDL BDL BDL

Copper mg/L BDL BDL BDL BDL BDL BDL BDL

Lead µg/L BDL BDL BDL BDL BDL BDL BDL

Chromium mg/L BDL BDL BDL BDL BDL BDL BDL

Nickel mg/L BDL BDL BDL BDL BDL BDL BDL

Zinc mg/L 28 BDL 28 31 142 172 249

Iron mg/L 239 621 335 133 72 48 142

Pesticides

Alpha BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Beta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

gamma BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Delta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDL

Aldrin µg/L BDL BDL BDL BDL BDL BDL BDL

Dieldrin µg/L BDL BDL BDL BDL BDL BDL BDL

0P DDT µg/L BDL BDL BDL BDL BDL BDL BDL

PP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Meenachil Manimala Periyar Ashtamudi Paravur

Kidangoor 1339

Kallooppara 1340

Thondara 1384

Eloor 0017

Kalady 0018

Ashtamudi 1441

Paravur 1574

ParametersTemperature OC 30 32 32 32 30 25 21pH 7.6 7.6 7.4 7.7 6.6 7.7 7.6Conductivity µS/cm 92 286 261 29850 36 18260 13060Turbidity NTU 1.8 0 0 2.7 0.2 0 0Phenoph: Alkalinity 0 0 0 0 0 0 0Total Alkalinity 23 80 30 67 16 48 32Chlorides mg/L 14 46 50 11000 2 6620 4490COD mg/L 12.8 8 12 3.2 4.2 62 28TKN mg/L 0.22 0 0.01 0.05 0.30 0.01 0Amm- N mg/L 0 0 0 0 0 0 0Hardness mg/L 25 110 80 3960 23 2450 990Calcium as CaCO3 mg/L 10 50 40 560 15 1696 640Magnesium as CaCO3 mg/L 15 60 40 3400 8 754 350Sulphate mg/L 1.2 8 16 1000 6.4 80 68Sodium mg/L 7.4 23 25 5600 1 3346 2320TDS mg/L 60 196 180 19638 32 12210 7740TFS mg/L 55 120 160 18000 26 9060 4324TSS mg/L 14 52 80 26 10 80 48Phosphate mg/L 0 0 0 0.16 0.01 0 0Boron mg/L 0 0 0 0.01 0 0 0Potassium mg/L 2.26 8 2.2 227 1.23 144 125BOD mg/L 0.5 2.4 1.7 0.3 0.9 2.8 2.2Flouride mg/L 0 0.5 0.4 0 0.02 0 0DO mg/L 6 5.5 6.1 8.3 6.1 4 5.4Nitrate N mg/L 0.8 0.01 0.05 0.7 0.1 2.6 0.92TC MPN/100ml 3400 400 1200 400 6300 700 390FC MPN/100ml 1300 170 790 170 2400 490 200

MetalsCadmium mg/L BDL BDL BDL BDL BDL BDL BDLCopper mg/L BDL BDL BDL BDL BDL BDL BDLLead µg/L BDL BDL BDL BDL BDL BDL BDLChromium mg/L BDL BDL BDL BDL BDL BDL BDLNickel mg/L BDL BDL BDL BDL BDL BDL BDLZinc mg/L 19 81 52 BDL BDL BDL 68Iron mg/L 180 334 268 22 BDL 29 173

PesticidesAlpha BHC µg/L BDL BDL BDL BDL BDL BDL BDLBeta BHC µg/L BDL BDL BDL BDL BDL BDL BDLgamma BHC µg/L BDL BDL BDL BDL BDL BDL BDLDelta BHC µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDLAldrin µg/L BDL BDL BDL BDL BDL BDL BDLDieldrin µg/L BDL BDL BDL BDL BDL BDL BDL0P DDT µg/L BDL BDL BDL BDL BDL BDL BDLPP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Periyar Valapattanam

SDP Aluva 1338

Muppathadam 2333

Pathalam 2334

Kalamassery 2335

Purappallikkadavu 2336

KWA Intake Aluva 3468

Pazhassi2318

Parameters

Temperature OC 30 29 29 31 31 31 32

pH 6.6 7.4 6.5 6.3 7.5 6.5 7.6

Conductivity µS/cm 57 42 460 48 9600 45 75

Turbidity NTU 0.1 0.5 0.8 0.8 1.6 3.6 0.1

Phenoph: Alkalinity 0 0 0 0 0 0 0

Total Alkalinity 14 14 20 17 33 14 20

Chlorides mg/L 5 6 122 5 4100 4 8

COD mg/L 3.2 4.2 8 4.2 4.2 4.2 4

TKN mg/L 0.32 0.07 0 0.00 0.04 0.62 0.25

Amm- N mg/L 0 0 0 0 0 0 0.026

Hardness mg/L 22 27 68 25 1370 26 21

Calcium as CaCO3 mg/L 10 13 20 14 310 12 11

Magnesium as CaCO3 mg/L 12 14 48 11 1060 14 10

Sulphate mg/L 2.8 4.2 6.2 4.2 144 3.5 1.5

Sodium mg/L 2.8 3.4 60 2.5 2025 2.2 4.61

TDS mg/L 32 34 260 34 6400 30 41

TFS mg/L 26 28 200 28 5800 20 38

TSS mg/L 12 10 15 10 15 18 16

Phosphate mg/L 0.09 0.0700 0.09 0.0300 0.08 0.16 0.01

Boron mg/L 0 0 0 0.03 0.02 0.04 0.75

Potassium mg/L 1.55 1.22 4.28 1.36 89.50 1.3 0.69

BOD mg/L 1.5 1.3 2.6 1.1 0.6 0.9 1.2

Flouride mg/L 0 0.024 0.04 0.03 0.23 0.02 0.24

DO mg/L 5.4 6.9 5.2 5.4 7 5.3 7.5

Nitrate N mg/L 0.09 0.25 0.1 0.1 0.1 0.2 0.004

TC MPN/100ml 3100 2000 2500 1700 1000 480 48

FC MPN/100ml 1000 700 1700 840 540 310 10

Metals

Cadmium mg/L BDL BDL BDL BDL BDL BDL BDL

Copper mg/L BDL BDL BDL BDL BDL BDL BDL

Lead µg/L BDL BDL BDL BDL BDL BDL BDL

Chromium mg/L BDL BDL BDL BDL BDL BDL BDL

Nickel mg/L BDL BDL BDL BDL BDL BDL BDL

Zinc mg/L BDL BDL BDL BDL BDL BDL BDL

Iron mg/L BDL BDL BDL BDL 10 BDL 160

Pesticides

Alpha BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Beta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

gamma BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Delta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDL

Aldrin µg/L BDL BDL BDL BDL BDL BDL BDL

Dieldrin µg/L BDL BDL BDL BDL BDL BDL BDL

0P DDT µg/L BDL BDL BDL BDL BDL BDL BDL

PP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Kadambrayar Muvattupuzha Chalakudy Chithrapuzha Periyar Kodungallur

Brahmapuram 2337

Manackakadavu 2338

Vettikkattumukku 0043

Pulikkakadavu 1154

Irumpanam 1573

Thekkady 1576

Kodungallur 1577

ParametersTemperature OC 31 31 32 31 30 30 27pH 6.5 6.6 7.6 6.7 6.6 7.5 7.6Conductivity µS/cm 110 88 76 375 5210 57 24300Turbidity NTU 1.4 4.9 2.2 0.2 3.5 1.2 2.4Phenoph: Alkalinity 0 0 0 0 0 0 0Total Alkalinity 20 19 17 18 22 17 57Chlorides mg/L 12 14 15 81 1750 10 8800COD mg/L 10 10 9.6 3.2 3.2 6.4 3.2TKN mg/L 1.3 1.1 0.27 1.6 0 0.13 0Amm- N mg/L 0 0 0 0.05 0 0 0Hardness mg/L 34 29 24 134 700 15 2950Calcium as CaCO3 mg/L 11 9 15 45 250 9 640Magnesium as CaCO3 mg/L 23 20 9 89 450 6 2310Sulphate mg/L 4.9 4.5 4.5 6.2 90 3.7 250Sodium mg/L 7.1 9.91 7.3 40 900 5 4300TDS mg/L 60 59 53 206 3600 39 16200TFS mg/L 50 50 51 185 2900 37 15700TSS mg/L 14 25 15 12 50 10 20Phosphate mg/L 0.2700 0.1700 0 0.06 6.2 0 0.82Boron mg/L 0 0 0 0 0.05 0 0.2Potassium mg/L 3.71 2.64 1.86 1.8 0.95 1.11 191BOD mg/L 2.3 2 0.6 1 0.6 0.4 0.4Flouride mg/L 0.04 0.04 0 0.03 0.01 0 0.449DO mg/L 1.5 4.9 7.8 6 7.1 7.6 7.2Nitrate N mg/L 0.8 0 0.44 0.2 0.74 0.03 0.15TC MPN/100ml 700 1000 4100 1200 3100 1000 1200FC MPN/100ml 200 430 1800 940 2100 790 700

MetalsCadmium mg/L BDL BDL BDL BDL BDL BDL BDLCopper mg/L BDL BDL BDL BDL BDL BDL BDLLead µg/L BDL BDL BDL BDL BDL BDL BDLChromium mg/L BDL BDL BDL BDL BDL BDL BDLNickel mg/L BDL BDL BDL BDL BDL BDL BDLZinc mg/L BDL BDL 38 BDL BDL 39 BDLIron mg/L 103 80 39 BDL 771 38 18

PesticidesAlpha BHC µg/L BDL BDL BDL BDL BDL BDL BDLBeta BHC µg/L BDL BDL BDL BDL BDL BDL BDLgamma BHC µg/L BDL BDL BDL BDL BDL BDL BDLDelta BHC µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDLAldrin µg/L BDL BDL BDL BDL BDL BDL BDLDieldrin µg/L BDL BDL BDL BDL BDL BDL BDL0P DDT µg/L BDL BDL BDL BDL BDL BDL BDLPP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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Kerala State Pollution Control Board

WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Karuvannur Puzhakkal Keecheri Kalpathypuzha Korayar Kabani Maniyankode Puzha

Karuvannur Bridge 2289

Puzhakkal Bridge 2290

Vadakkanchery 2291

Kalpathy3460

Kanjikode 2326

Muthankara 1207

Maniyankode Bridge 3459

ParametersTemperature OC 30 31 32 31 37 29 34

pH 6.8 6.6 6.8 7.7 6.2 6.7 6.7

Conductivity µS/cm 83 149 165 450 590 140 157

Turbidity NTU 0.2 5.2 31.7 3 3 0 0

Phenoph: Alkalinity 0 0 0 0 0 0 0

Total Alkalinity 21 30 40 150 198 38 44

Chlorides mg/L 10 19 22 12 38 13 16

COD mg/L 7.2 8.2 9.4 32 32 2 2

TKN mg/L 0.01 0.01 0.5 0.04 0.05 0.22 0.25

Amm- N mg/L 0 0 0.32 0 0 0 0

Hardness mg/L 18 43 50 188 236 52 52

Calcium as CaCO3 mg/L 14 30 42 116 120 25 27

Magnesium as CaCO3 mg/L 4 13 8 72 116 27 25

Sulphate mg/L 0 9.5 4.5 9 38.3 4.2 0

Sodium mg/L 5.4 10.2 12 6 20 6.5 7.9

TDS mg/L 50 89 99 260 345 78 87

TFS mg/L 20 23 23 230 308 68 78

TSS mg/L 12 15 11 10 10 10 10

Phosphate mg/L 1.4 1.7 1.9 0.21 0.2010 0 0

Boron mg/L 0 0 0 0 0 0 0

Potassium mg/L 4.91 8.23 5.31 4 5.2 1.9 2.4

BOD mg/L 2.2 1.2 1.9 2.9 2.8 1.8 0.5

Flouride mg/L 0 0 0 0.7 0.80 0 0

DO mg/L 6.8 6 6.6 5.6 5.4 4.1 5.4

Nitrate N mg/L 0.16 0.22 0.24 5.21 1.20 0.13 0.13

TC MPN/100ml 100 1000 490 840 790 40 49

FC MPN/100ml 60 100 200 580 280 24 36

MetalsCadmium mg/L BDL BDL BDL BDL BDL BDL BDL

Copper mg/L BDL BDL BDL BDL BDL BDL BDL

Lead µg/L BDL BDL BDL BDL BDL BDL BDL

Chromium mg/L BDL BDL BDL BDL BDL BDL BDL

Nickel mg/L BDL BDL BDL BDL BDL BDL BDL

Zinc mg/L BDL BDL BDL BDL BDL BDL BDL

Iron mg/L 24 15 16 BDL BDL 19 11

PesticidesAlpha BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Beta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

gamma BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Delta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDL

Aldrin µg/L BDL BDL BDL BDL BDL BDL BDL

Dieldrin µg/L BDL BDL BDL BDL BDL BDL BDL

0P DDT µg/L BDL BDL BDL BDL BDL BDL BDL

PP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Bharathapuzha Kadalundi Tirur Periyar Periyar

Kuttipuram 2331

Pattambi 2332

Thiroorangadi 1566

Hajiyarppally 2293

Thalakadathur 2292

Edamalayar2330

Bhoothathankettu2329

Parameters

Temperature OC 31 33 30 30 30 30 27

pH 7.7 7.8 7.2 7.5 6.6 6.9 6.8

Conductivity µS/cm 220 250 116 133 26010 23 40

Turbidity NTU 2 2 0 0 0 0.3 4.4

Phenoph: Alkalinity 0 0 0 0 0 0 0

Total Alkalinity 80 85 21 23.5 245 9 11

Chlorides mg/L 7 12 19 24 7350 3 4

COD mg/L 4 12 8 3.2 4 3.2 4.2

TKN mg/L 0.01 0.03 0 0 0 0.4 0.21

Amm- N mg/L 0 0 0 0 0 0 0

Hardness mg/L 92 104 33 35 2256 20 20

Calcium as CaCO3 mg/L 58 54 30 20 1950 5 6

Magnesium as CaCO3 mg/L 34 50 3 15 306 15 14

Sulphate mg/L 9.2 13 6.3 3.9 1100 2 2

Sodium mg/L 3.6 6 9.4 12 4180 1.8 2

TDS mg/L 121 150 67 74 14500 18 28

TFS mg/L 108 135 26 27 10500 14 20

TSS mg/L 10 10 15 46 250 10 12

Phosphate mg/L 0.0800 0.1000 0 0.0000 0.0200 0 0.0300

Boron mg/L 0 0 0 0 0 0 0

Potassium mg/L 0.6 1.20 2 2.8 300 0.74 4.6

BOD mg/L 0.8 2.6 2 0.8 1 0.6 0.8

Flouride mg/L 0.40 0.50 0 0.62 0 0 0.02

DO mg/L 7.2 5.8 6.6 4.6 2.3 7.5 7

Nitrate N mg/L 0.41 0.56 0.45 0.85 1 0.17 0.13

TC MPN/100ml 79 170 20 48 28 210 140

FC MPN/100ml 40 40 10 24 14 84 84

Metals

Cadmium mg/L BDL BDL BDL BDL BDL BDL BDL

Copper mg/L BDL BDL BDL BDL BDL BDL BDL

Lead µg/L BDL BDL BDL BDL BDL BDL BDL

Chromium mg/L BDL BDL BDL BDL BDL BDL BDL

Nickel mg/L BDL BDL BDL BDL BDL BDL BDL

Zinc mg/L BDL BDL BDL BDL 24 BDL BDL

Iron mg/L 13 BDL 58 66 37 61 14

Pesticides

Alpha BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Beta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

gamma BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Delta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDL

Aldrin µg/L BDL BDL BDL BDL BDL BDL BDL

Dieldrin µg/L BDL BDL BDL BDL BDL BDL BDL

0P DDT µg/L BDL BDL BDL BDL BDL BDL BDL

PP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Chaliyar Bhavani Kuttiyadi Mahe Karapuzha

Koolimadu 0020

Chungappally0021

Nilambur 3464

Elachivazhy 1208

Estatemukku 1567

Valayam 1568

Karapuzha Dam3458

Parameters

Temperature OC 31 31 32 31 32 27 32

pH 7.9 7.6 7.9 7.7 6.7 6.9 6.7

Conductivity µS/cm 128 42100 160 269 32 102 120

Turbidity NTU 0 0 0 1 0 0 0

Phenoph: Alkalinity 0 0 0 0 0 0 0

Total Alkalinity 40 55 28 135 8 27 36

Chlorides mg/L 16 11500 26 6 5 14 15

COD mg/L 10 8 3.2 4 10 12 2

TKN mg/L 0.09 0.50 0.01 0.01 0.19 0.44 0.41

Amm- N mg/L 0.07 0.12 0 0 0.14 0.2 0

Hardness mg/L 46 3000 43 154 9 26 43

Calcium as CaCO3 mg/L 40 300 32 78 2 12 25

Magnesium as CaCO3 mg/L 6 2700 11 76 7 14 18

Sulphate mg/L 0 3000 11.4 11 0 0 0

Sodium mg/L 7.8 7500 14 3 2.5 10.4 7.6

TDS mg/L 75 25000 89 149 20 58 66

TFS mg/L 68 21500 80 132 12 52 50

TSS mg/L 8 10 10 10 10 10 10

Phosphate mg/L 0 0 0 0.1000 0 0 0

Boron mg/L 0 0 0 0 0 0 0

Potassium mg/L 2.1 600 3.2 0.5 0.7 2.4 1.1

BOD mg/L 1.7 0.8 1.9 2.5 1.5 2.4 1.5

Flouride mg/L 0.16 0.7 0.09 0.60 0.5 0.4 0

DO mg/L 6.1 6.2 7.2 6.2 8.5 5.7 5.1

Nitrate N mg/L 0.01 0.51 0.05 0.69 0.08 0.21 0.13

TC MPN/100ml 150 1000 490 60 70 460 24

FC MPN/100ml 110 630 270 49 60 280 10

Metals

Cadmium mg/L BDL BDL BDL BDL BDL BDL BDL

Copper mg/L BDL BDL BDL BDL BDL BDL BDL

Lead µg/L BDL BDL BDL BDL BDL BDL BDL

Chromium mg/L 56 BDL BDL BDL BDL BDL BDL

Nickel mg/L BDL BDL BDL BDL BDL BDL BDL

Zinc mg/L 62 BDL 18 BDL BDL BDL BDL

Iron mg/L 240 26 37 BDL 15 25 9

Pesticides

Alpha BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Beta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

gamma BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Delta BHC µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDL

Endosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDL

Aldrin µg/L BDL BDL BDL BDL BDL BDL BDL

Dieldrin µg/L BDL BDL BDL BDL BDL BDL BDL

0P DDT µg/L BDL BDL BDL BDL BDL BDL BDL

PP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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Name of River stations Station Code

Kallai Korapuzha Kuppam Thalassery Vembanadu

Kallai bridge 2294

Kanayankode2295

Thaliparamba 1569

Rayoram2298

Pathipalam 2296

Pathiramanal 2312

OTJ 1575

ParametersTemperature OC 34 31 30 28 32 31 32pH 7.9 7.4 7.1 7.6 6.7 6.8 7.1Conductivity µS/cm 52300 30950 38800 90 122 3500 35350Turbidity NTU 0 0 1.2 1.3 2.4 0 5.8Phenoph: Alkalinity 0 0 0 0 0 0 0Total Alkalinity 120 100 87 24 33 60 71Chlorides mg/L 12900 8900 12900 12 16 800 17200COD mg/L 18 4.6 6.4 8 3.2 80 4.2TKN mg/L 0.78 0.51 0.65 0.2 0.5 0 1.32Amm- N mg/L 0.46 0.06 0.094 0.067 0.24 0 0.02Hardness mg/L 5800 3100 6400 30 28 490 515Calcium as CaCO3 mg/L 800 100 1100 11 19 90 340Magnesium as CaCO3 mg/L 5000 3000 5300 19 9 400 175Sulphate mg/L 5500 2000 354 2.8 2.32 120 1006Sodium mg/L 8500 5000 7915 5.94 7.96 398.2 8600TDS mg/L 30000 18500 24738 50 70 2000 28500TFS mg/L 26100 16000 17317 42 62 1800 27300TSS mg/L 12 10 35 12 25 280 42Phosphate mg/L 0.0000 0.0000 0 0.01 0.04 0 0.48Boron mg/L 0 0 0 0.04 0.097 0 0.02Potassium mg/L 280 250 302 0.92 1.58 35 52.1BOD mg/L 1.5 1.7 2.8 2.9 0.3 2.9 0.8Flouride mg/L 0.9 0.25 0.00 0.55 0.26 0.8 0.64DO mg/L 5.3 5.6 5 7.1 1.3 7.5 6.5Nitrate N mg/L 0.9 0.45 0.097 0.002 0.002 0.1 0.48TC MPN/100ml 400 2800 220 200 400 200 1100FC MPN/100ml 200 1800 20 20 40 100 430

MetalsCadmium mg/L BDL BDL BDL BDL BDL BDL BDLCopper mg/L BDL BDL BDL BDL BDL BDL BDLLead µg/L BDL BDL BDL BDL BDL BDL BDLChromium mg/L BDL BDL BDL BDL BDL BDL BDLNickel mg/L BDL BDL BDL BDL BDL BDL BDLZinc mg/L BDL BDL BDL BDL BDL 359 BDLIron mg/L 57 BDL 37 BDL BDL 1179 193

PesticidesAlpha BHC µg/L BDL BDL BDL BDL BDL BDL BDLBeta BHC µg/L BDL BDL BDL BDL BDL BDL BDLgamma BHC µg/L BDL BDL BDL BDL BDL BDL BDLDelta BHC µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDLAldrin µg/L BDL BDL BDL BDL BDL BDL BDLDieldrin µg/L BDL BDL BDL BDL BDL BDL BDL0P DDT µg/L BDL BDL BDL BDL BDL BDL BDL

PP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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Name of River stations Station Code

Valapattanam Ancharakandy Ramapuram Kavai Kariangode Padmatheertham Pond

Parassinikkadavu 3473

Meruvamba2297

Ancharakandy 2319

Ramapuram Bridge 2299

Kutiyolpalam 2301

Kakkadavu 1571

Sree Padmanabha Swami Temple

2325

ParametersTemperature OC 32 33 32 34 32 30 36pH 7.4 7.1 7.1 7.4 7.3 7.2 7.2Conductivity µS/cm 42600 129 22000 45300 125 70 225Turbidity NTU 0.8 2 0.9 2.5 2.8 0.2 71.2Phenoph: Alkalinity 0 0 0 0 0 0 0Total Alkalinity 88 34 61 91 22 28 58Chlorides mg/L 18200 17 10900 19000 20 10 32COD mg/L 6.4 4 4 4 3.2 4 40TKN mg/L 0.7 0.41 0.4 0.58 0.45 0.23 0Amm- N mg/L 0.02 0.06 0.03 0.05 0.024 0 0Hardness mg/L 7200 29 3740 7600 29 24 75Calcium as CaCO3 mg/L 2000 17 1700 1500 15 10 52Magnesium as CaCO3 mg/L 5200 12 2040 6100 14 14 23Sulphate mg/L 373.3 0.66 352 379 27.8 0 0Sodium mg/L 11586 9.8 5937 11523 11.3 6 16.1TDS mg/L 32500 90 19600 32500 90 40 130TFS mg/L 20268 72 7168 22049 77 32 121TSS mg/L 22 20 18 29 28 10 88Phosphate mg/L 0 0 0 0 0 0 0Boron mg/L 0 0.023 0.35 0 0.086 3.76 0Potassium mg/L 309.2 1.62 186 364 2.24 0.9 1.2BOD mg/L 1.8 2.5 2.1 2.4 0.3 0.3 5.5Flouride mg/L 0.00 0.44 0.00 0.02 0 0 0DO mg/L 4.5 4.2 4.6 3.3 6.3 5.5 6Nitrate N mg/L 0.02 0.004 0.02 0.002 0.075 0.1 0.02TC MPN/100ml 48 100 350 100 280 840 410FC MPN/100ml 12 20 120 20 58 220 170

MetalsCadmium mg/L BDL BDL BDL BDL BDL BDL BDLCopper mg/L BDL BDL BDL BDL BDL BDL BDLLead µg/L BDL BDL BDL BDL BDL BDL BDLChromium mg/L BDL BDL BDL BDL BDL BDL BDLNickel mg/L BDL BDL BDL BDL BDL BDL BDLZinc mg/L BDL BDL BDL BDL BDL BDL BDLIron mg/L 42 BDL BDL 173 430 101 BDL

PesticidesAlpha BHC µg/L BDL BDL BDL BDL BDL BDL BDLBeta BHC µg/L BDL BDL BDL BDL BDL BDL BDLgamma BHC µg/L BDL BDL BDL BDL BDL BDL BDLDelta BHC µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDLAldrin µg/L BDL BDL BDL BDL BDL BDL BDLDieldrin µg/L BDL BDL BDL BDL BDL BDL BDL0P DDT µg/L BDL BDL BDL BDL BDL BDL BDLPP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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Name of River stations Station Code

Neeleswaram Chithrapuzha Chithrapuzha Mogral Canoli Mananchira

Hosdurg 1570

Nambiarckal Dam 2302

Palakkattuthazhamthode 3469

Unthithode at Eloor 3467

Mogral Bridge 2304

Canoli canal 3461

Mananchira 3462

ParametersTemperature OC 30 29 29 32 30 32 33pH 7.9 8.1 6.5 7.1 7.9 7.7 7.6Conductivity µS/cm 40000 720 58 26230 49800 43100 100Turbidity NTU 0.2 0.2 1.5 1.2 0.8 0 0Phenoph: Alkalinity 0 0 0 0 0 0 0Total Alkalinity 100 41 17 69 120 35 24Chlorides mg/L 12800 229 5 9150 15100 10500 15COD mg/L 6.3 6.2 10 10 4 8 3.2TKN mg/L 0.64 0.51 0.65 0.01 0.56 0.36 0.01Amm- N mg/L 0 0 0 0 0 0.25 0Hardness mg/L 7100 90 27 2960 7200 5400 34Calcium as CaCO3 mg/L 2800 25 10 400 1800 2900 30Magnesium as CaCO3 mg/L 4300 65 17 2560 5400 2500 4Sulphate mg/L 250 3 0.64 13 338 4680 4Sodium mg/L 6500 112 3.08 4600 7500 6504 8TDS mg/L 22350 478 32 17500 30125 24000 61TFS mg/L 19100 138 25 16000 28100 20500 50TSS mg/L 10 10 10 20 35 10 10Phosphate mg/L 0 0 0.18 0.29 0.0000 0 0Boron mg/L 5.61 5.29 0 0.06 5.61 0 0Potassium mg/L 200 4.9 1.58 18.16 250 282 0.8BOD mg/L 0.9 0.9 2.3 2.2 1.6 0.6 0.2Flouride mg/L 0.17 0.08 0.026 0.52 0.7 0.9 0.09DO mg/L 3 6.5 4.5 2.9 5.9 6.3 9.6Nitrate N mg/L 0.07 0.06 0.42 1.4 0.09 0.61 0.07TC MPN/100ml 1200 940 8400 6300 380 490 70FC MPN/100ml 330 240 3400 2600 1700 100 49

MetalsCadmium mg/L BDL BDL BDL BDL BDL BDL BDLCopper mg/L BDL BDL BDL BDL BDL BDL BDLLead µg/L BDL BDL BDL BDL BDL BDL BDLChromium mg/L BDL BDL BDL BDL BDL BDL BDLNickel mg/L BDL BDL BDL BDL BDL BDL BDLZinc mg/L BDL BDL BDL BDL BDL 53 19Iron mg/L 50 59 422 BDL 67 BDL 45

PesticidesAlpha BHC µg/L BDL BDL BDL BDL BDL BDL BDLBeta BHC µg/L BDL BDL BDL BDL BDL BDL BDLgamma BHC µg/L BDL BDL BDL BDL BDL BDL BDLDelta BHC µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-I µg/L BDL BDL BDL BDL BDL BDL BDLEndosulphan-II µg/L BDL BDL BDL BDL BDL BDL BDLAldrin µg/L BDL BDL BDL BDL BDL BDL BDLDieldrin µg/L BDL BDL BDL BDL BDL BDL BDL0P DDT µg/L BDL BDL BDL BDL BDL BDL BDLPP DDT µg/L BDL BDL BDL BDL BDL BDL BDL

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WATER QUALITY DATA APRIL 2019

Name of River stations Station Code

Uppala Peruvamba Kayamkulam Punnamada Pookode Vellayani

Uppala Bridge 2306

Chandappura2300

Kayamkulam 1578

Punnamada 1579

Pookode 1580

Vandithadam 3470

ParametersTemperature OC 28 32 30 32 32 34pH 7.9 7.1 8.2 7.4 6.8 7.1Conductivity µS/cm 40500 76 54210 2630 29 218Turbidity NTU 0.2 2.3 0 0 0 1Phenoph: Alkalinity 0 0 0 0 0 0Total Alkalinity 92 11 80 40 6 48Chlorides mg/L 12200 13 15300 680 6 32COD mg/L 6.3 3.2 64 100 2 34TKN mg/L 0.65 0.44 0 0 0.05 0Amm- N mg/L 0 0 0 0 0 0Hardness mg/L 6800 19 4700 180 8 73Calcium as CaCO3 mg/L 4000 13 1200 100 4 52Magnesium as CaCO3 mg/L 2800 6 3500 80 4 21Sulphate mg/L 186 3 620 105 0 4.5Sodium mg/L 6185 5.43 7612 386.4 3 16TDS mg/L 26100 42 29800 1500 16 127TFS mg/L 24500 38 26400 1040 10 111TSS mg/L 48 10 960 110 10 86Phosphate mg/L 0 0 0 0 0 0Boron mg/L 5.63 0.01 0 0 0 0Potassium mg/L 285 0.52 580 20.5 0.6 1.3BOD mg/L 1.1 1.3 3.3 3 1.2 5.6Flouride mg/L 0.1 0 1 0.9 0 0DO mg/L 6.5 5.4 5.9 6.3 5.1 6.2Nitrate N mg/L 0.13 0.003 0.78 0.1 0.13 0.1TC MPN/100ml 1400 200 790 400 63 1800FC MPN/100ml 350 48 200 600 10 940

MetalsCadmium mg/L BDL BDL BDL BDL BDL BDLCopper mg/L BDL BDL BDL BDL BDL BDLLead µg/L BDL BDL BDL BDL BDL BDLChromium mg/L BDL BDL BDL BDL BDL BDLNickel mg/L BDL BDL BDL BDL BDL BDLZinc mg/L BDL BDL 29 184 15 34Iron mg/L 44 BDL 115 184 82 16

PesticidesAlpha BHC µg/L BDL BDL BDL BDL BDL BDLBeta BHC µg/L BDL BDL BDL BDL BDL BDLgamma BHC µg/L BDL BDL BDL BDL BDL BDLDelta BHC µg/L BDL BDL BDL BDL BDL BDLEndosulphan-I µg/L BDL BDL BDL BDL BDL BDLEndosulphan-II µg/L BDL BDL BDL BDL BDL BDLAldrin µg/L BDL BDL BDL BDL BDL BDLDieldrin µg/L BDL BDL BDL BDL BDL BDL0P DDT µg/L BDL BDL BDL BDL BDL BDLPP DDT µg/L BDL BDL BDL BDL BDL BDL

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RuRal WateR SuPPly SCheMeS Quality oF SouRCe WateR

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9.1 PaLakkad diStrict

Station1:Vazhukkupara-ChinnamoolatharaKudivellaPadhathi,

EruthempathiGramapanchayath.

Station 2 :Eruthempathi Gramapanchayath 2014-15

Malayandi Koundanoor Kudivella Padhathi, Eruthempathi

Gramapanchayath

Station 3: NalleppillyAgraharam, Kudivellavitharana padhathi-2016,

NalleppillyGramapanchayath

Station 4 :AngamasalaKudivella Pandhathi-2016-

17,ErimayoorGramapanchayath

Station 5 :Mangodupookurissi Colony kudivellaPadhathi,

MelarkodeGramapanchayath

Station 6: Janakiya soothra napadhathi 2007-2008, pookurissi

Mangode Kudivellapadhathi, MelarkodeGramapanchayath,

Station7: kunjansmara kasudhajhala vitharanapadhathi, Wevers Colony,

Ottapalam Municipality

Station 8:BRGF pumphouse, Pathakadavu, Ottapalam Municipality

Station 9: Jalanidhi - Lakkidi-Perur Gramapanchayath,

Brihathkudivellapadhathi

Station 10 :Vadanam-Kurissi Village kudivellaPadhathi,

OngallurGramapanchayath

Station 11: Pattambi block Panchayath Ongallur

Vellakkadanmaril Kudivellapadhathi, Ongallur Grama Panchayath.

Station 12: Ongallur 4 cent Kudivella Padhathi Janakiya soothranam

2007-08, OngallurGramaPanchayath

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Station 13: Chirakkal Padi Pravasi Koottayama, shudhajala kudivella

padhathi, 2017, Kanjirapuzha Grama Panchayath.

Station14:Manaladikudivella Padhathi, Jillapanchayath 2013-14,

ThenkkaraGramapanchayath.

Station15: Muthuvalli Kudivellapadhathi 2016-17,

Thenkkara Gramapanchayath

Station 16: Chandrapuram mini Kudivella Padhathi,

Palakkad Jilla Panchayath, Kerala Vikasanapadhathi,

Pudusserygramapanchayth

Station 17: Nedumpallam jalasambharani, Janakiya soothranam 2009-10, Elappully Gramapanchayath

Station 18: Vazhakodu mini Kudivella padhathi, Elappully

Gramapanchayath

Station 19 : Amrutha mini Kudivella padhathi, Oravu Kodanaya

kalvadakkekadu, Pattenchery Grama panchayath

Station 20 : Varalchadhurishwasa Padhathi 2013 athimani

KudivellaPadhathi, Perumatti Gramapanchayath

Station 21: Chittur Block Panchayath Janakiya soothranam 2017-18,

Meleezhuthani Kudivella Padhathi, Perumatti Gramapanchayath

Station 22: Kundiyapuram Kudivellapadhathi, Kuzhalmanam Block Panchayath, MathurGrama

panchayath

Station23: V.K. Nagar Kudivepadhathi, Melarkode

Grama Panchayath

Station 24: Mnagodupookurissi Colony kudivella Padhathi,

Kottekulam, Melarkode Grama panchayath

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Station 25: KWA chathakunnu Kudivellapadhathi, Sree krishnapuram

Grama panchayath

Station 28: Muringalam Mini Kudivella padhathi, Muthuthala

GramaPanchayath.

Station 29: Kariyanur Pallipuram mini sudhajalavitharana Padhathi,

pallipuramGramaPanchayath

Station 30:UrulanPadi, kudivella padhathi,

ParuthurGramapanchayath

Station 31: KWA Span Karakurushi Thachanpara Shudhalavithara Padhathi, Karakkurushi Grama

Panchayath

Station 32 :KWA Karakurushi Thachanpara Samagra Shudhalavithara

Padhathi, Thachampara Grama Panchayath

Station 33 : Chirakkal Padi Pravasi Koottayama, shudhajala kudivella

padhathi, 2017, Kanjirapuzha Grama Panchayath

Station 34: Mambaram-Puthugramam Mini Kudivellapathi, Kannadi Grama

Panchayath

Station 35 :Mambaram- Mini Kudivella pathi kerala sarkar Samuhya neethi vakuppusamjojitha Shishu vikasana sewana Padhathi, Kannadi Grama

Panchayath

Station 36 :Para-mini Kudivella padhathi, Vengodi, EleppullyGramaPanchayatha

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Sl. No. Parameter Unit SAMPLE ID

January (17.1.19) February (12.02.19) March (16.3.19) April (10.4.19)

1 2 3 4 5 6 7 8 9 10 11 12

1 Colour Hazen BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

2 Odour _ Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable

3 Turbidity NTU BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

4 pH _ 7.2 7.6 7.6 6.8 6.9 7.2 7.7 7 6.9 7.9 8 8.1

5Total hardness

(as CaCO3 ) mg/l 356 428 316 214 146 102 184 104 106 146 160 190

6 Iron(as Fe) " BDL 0.01 BDL 0.80 0.78 0.31 0.10 0.19 0.02 0.06 0.30 0.17

7 Chloride(as Cl) " 10 22 22 12 6 4 11 8 7 8 8 8

8BOD

(3 days at 270C)" 0.3 0.4 0.2 0.3 0.3 0.2 0.3 0.3 0.3 0.3 0.2 0.3

9 Nitrate(as NO3) " 0.75 3.48 2.93 0.26 0.07 0.08 0.50 0.28 0.08 1.24 0.77 0.92

10 Fluoride(as F) " 0.3 0.5 0.5 1.02 10.05 1.02 1 0.9 0.9 0.3 0.6 0.7

11 Total Coliforms cfu/100ml 160 Absent 200 Absent 1240 Absent 400 Absent Absent 180 180 130

12 Fecal Coliforms cfu/100ml 60 Absent 60 Absent Absent Absent 100 Absent Absent 50 Absent 80

Station 1 : Vazhukkupara-ChinnamoolatharaKudivellaPadhathi, EruthempathiGramapanchayathStation 2 : EruthempathiGramapanchayath 2014-15 MalayandiKoundanoorKudivellaPadhathi, ,

EruthempathiGramapanchayathStation 3 : NalleppillyAgraharam, Kudivellavitharana padhathi-2016, NalleppillyGramapanchayathStation 4 : AngamasalaKudivella Pandhathi-2016-17, ErimayoorGramapanchayathStation 5 : Mangodupookurissi Colony kudivellaPadhathi, MelarkodeGramapanchayathStation 6 : Janakiyasoothranapadhathi2007-2008, pookurissiMangodeKudivellapadhathi,

MelarkodeGramapanchayath,Station7 : kunjansmarakasudhajhalavitharanapadhathi, Wevers Colony, Ottapalam MunicipalityStation 8 : BRGF pumphouse, Pathakadavu, Ottapalam MunicipalityStation 9 : Jalanidhi-Lakkidi-PerurGramapanchayath, Brihathkudivellapadhathi, Station 10 : Vadanam-Kurissi Village kudivellaPadhathi, OngallurGramapanchayathStation 11 : Pattambi block PanchayathOngallurVellakkadanmarilKudivellapadhathi, OngallurGramaPanchayath. Station 12 : Ongallur 4 cent KudivellaPadhathiJanakiyasoothranam 2007-08, OngallurGramaPanchayath

Sl. No. Parameter Unit SAMPLE ID

May (08.5.19) June (19.6.19) July (06.7.19) August (14.8.19)

13 14 15 16 17 18 19 20 21 22 23 24

1 Colour Hazen BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

2 Odour _ Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable

3 Turbidity NTU BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

4 pH _ 7.3 7.1 7.1 7.7 7.6 7.5 7.7 7.8 7.7 7.3 7.6 7.4

5Total hardness

(as CaCO3 ) mg/l 62 140 64 114 302 238 256 272 224 300 386 138

6 Iron(as Fe) " 0.33 BDL BDL BDL BDL BDL 0.03 0.02 0.03 BDL BDL 0.01

7 Chloride(as Cl) " 6 14 6 8 22 22 35 52 41 79 43 24

8BOD

(3 days at 270C)

" 0.2 0.5 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.4 0.3

9 Nitrate(as NO3) " 0.58 1.60 2.41 0.05 0.08 0.02 0.21 0.03 BDL 0.08 0.07 0.03

10 Fluoride(as F) " 0.3 0.2 0.3 0.4 0.4 0.6 0.4 0.6 0.6 0.21 0.32 0.13

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11 Total Coliforms cfu/100ml 1300 20 30 175 80 150 85 15 125 35 100 Absent

12 Fecal Coliforms cfu/100ml 900 10 20 150 60 125 Absent Absent 60 Absent Absent Absent

Station 13 : ChirakkalPadiPravasiKoottayama, shudhajalakudivellapadhathi, 2017, KanjirapuzhaGramaPanchayath.Station14 : ManaladikudivellaPadhathi, Jillapanchayath 2013-14, ThenkkaraGramapanchayath. Station15 : MuthuvalliKudivellapadhathi 2016-17, ThenkkaraGramapanchayathStation 16 : Chndrapuram mini KudivellaPadhathi, Palakkad JillaPanchayath, Kerala Vikasanapadhathi,

PudusserygramapanchaythStation 17 : Nedumpallamjalasambharani, Janakiyasoothranam 2009-10, ElappullyGramapanchayathStation 18 : Vazhakodu mini Kudivellapadhathi, ElappullyGramapanchayathStation 19 : Amrutha mini Kudivellapadhathi, OravuKodanayakalvadakkekadu, PattencheryGramapanchayathStation 20 : VaralchadhurishwasaPadhathi 2013 athimaniKudivellaPadhathi, PerumattiGramapanchayathStation 21 : Chittur Block PanchayathJanakiyasoothranam 2017-18, MeleezhuthaniKudivellaPadhathi,

PerumattiGramapanchayathStation 22 : KundiyapuramKudivellapadhathi, Kuzhalmanam Block Panchayath, MathurGramapanchayathStation23 : V.K. Nagar Kudivepadhathi, MelarkodeGramaPanchayath Station 24 : Mnagodupookurissi Colony kudivellaPadhathi, Kottekulam, MelarkodeGramapanchayath

Sl. No. Parameter Unit SAMPLE ID

September (16.9.19) October (10.10.19) November (7.11.19) December (6.12.19)

25 26 27 28 29 30 31 32 33 34 35 36

1 Colour Hazen BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

2 Odour _ Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable Agreeable

3 Turbidity NTU BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

4 pH _ 7.8 7.0 9.7 6.4 7.7 7.2 7.0 7.0 7.0 7.1 7.6 7.8

5Total hardness

(as CaCO3 ) mg/l 56 196 32 174 88 150 20 18 60 308 268 298

6 Iron(as Fe) " 0.01 BDL BDL 0.55 BDL 0.20 BDL BDL 0.10 BDL 0.02 BDL

7 Chloride(as Cl) " 16.5 38.5 17.5 18 29 27 8.91 8.91 14.8 108.7 69.23 97.9

8BOD

(3 days at 270C)" 0.3 0.5 0.3 0.3 0.5 0.3 0.5 0.3 0.4 0.3 0.3 0.3

9 Nitrate(as NO3) " 0.10 0.94 0.66 0.02 BDL BDL 0.44 0.26 0.06 26.35 3.37 0.33

10 Fluoride(as F) " 0.03 0.15 0.08 0.06 0.03 0.38 0.07 0.07 0.13 0.30 0.38 0.35

11 Total Coliforms cfu/100ml Absent Absent Absent 50 150 1500 Absent 100 800 750 Absent 150

12 Fecal Coliforms cfu/100ml Absent Absent Absent Absent 50 400 Absent Absent 400 150 Absent 100

Station 25 : KWA chathakunnuKudivellapadhathi, SreekrishnapuramGramapanchayathStation26 : AmbalaparaKesavanpathiyilthacharamakunnathkudivellapadhathi, AmbalaparaGramaPanchayath (Picture not

available)Station 27 : MurukkumpottaKudivellapadhathi, AmbalaparaGramaPanchayath (Picture not available)Station 28 : Muringalam Mini Kudivellapadhathi, MuthuthalaGramaPanchayath.Station 29 : KariyanurPallipuram mini sudhajalavitharanaPadhathi, pallipuramGramaPanchayathStation 30 : UrulanPadi, kudivellapadhathi, ParuthurGramapanchayathStation 31 : KWA Span KarakurushiThachanparaShudhalavitharaPadhathi, KarakkurushiGramaPanchayathStation 32 : KWA KarakurushiThachanparaSamagraShudhalavitharaPadhathi, ThachamparaGramaPanchayathStation 33 : ChirakkalPadiPravasiKoottayama, shudhajalakudivellapadhathi, 2017, KanjirapuzhaGramaPanchayathStation 34 : Mambaram-Puthugramam Mini Kudivellapathi, KannadiGramaPanchayathStation 35 : Mambaram- Mini KudivellapathikeralasarkarSamuhyaneethivakuppusamjojithaShishuvikasanasewanaPadhathi,

KannadiGramaPanchayathStation 36 : Para-mini Kudivellapadhathi, Vengodi, EleppullyGramaPanchayatha

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9.2 thriSSur diStrict

RW VAYANTHALA RW POOMALA RW PERIYARAM

RW VELUR RW THOLUR

Sl.No. Parameter Unit SAMPLE ID

Dt:01.01.19 Dt:05.03.19 Dt:10.05.19 Dt:02.07.19 Dt:15.10.19

RP1 RV1 RPM1 BV1 RT1

1 Colour Hazen NIL NIL NIL NIL NIL

2 Odour _ NIL NIL NIL NIL NIL

3 pH _ 6.4 6.4 7 6.2 7.2

4 Electrical Conductivity μs/cm

5 Turbidity NTU 2.1 0.5 0.7 1.2 1.8

6 Iron(as Fe) mg/l BDL 0.19 BDL BDL BDL

7 Total hardness(as CaCO3 ) " 14 240 26 100 35

8 Chloride(as Cl) " 28 38 52 52 18

9 Nitrate(as NO3) " 0.25 0.32 0.12 0.14 BDL

10 Ammonia(as NH3-N) "

11 Fluoride(as F) " BDL BDL BDL BDL BDL

12 BOD (3 days at 270C) " 2 1.5 2.1 1.2 2

13 Total Coliforms cfu/100ml 2000 100 100 NIL 200

14 Fecal Coliforms cfu/100ml

1 RP1 PARIYARM 2 RV1 VYANTHALA 3 RPM1 POOMALA 4 BV1 VELUR 5 RT1 THOLUR

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9.3 kozhikode diStrict

Rws1- Kattakalam-Peringattparambu Sc Colony Shudhajala Vidharana

Padhathi, Vilakkumadam. Source: well Perumanna Gramapanchayath

Rws2-Kunnummal-Cholakkal Kudivellapadhathi, Perumanna Gramapanchayath Source:well Perumanna Gramapanchayath

Rw3-Vilayil Mayangott Sangam Jalasechana Padhathi

Source:well Perumanna Gramapanchayath

Rws4-Edoliparamba Kacheriparamb Kudivellapadhathi Source:well Perumanna Gramapanchayath

Rws5- Karuvarapatta Kudivellapadhathi, Kattangal Koduvalli

Road, Near Bridge Source:well Chathamangalam Gramapanchayath

Rws6- Eranhiparamb Kacheriparamb Kudivella padhathiSource: well

Chathamangalam Grama panchayath

Rws7- Palathummal Kudivella Padhathi Source: well

Chathamangalam Gramapanchayath

Rws8-Naduvath Thazham Kudivella Padhathi Source: well

Chathamangalam Gramapanchayath

Rws 9- Parathikunnu Kudivella Padhathi Source:well Chemancheri

Gramapanchayath

Rws10- Kottuvayal Kudivella Padhathi Source:well Chemancheri

Gramapanchayath

Rws11- Muthachikavu Kudivella Padhathi Source:well

Chemancheri Gramapanchayath

Rws12- Arayidathu Kudivella Padhathi Source:well Chemancheri

Gramapanchayath

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Rws13- Ezhinilam Kudivellapadhathi, Parammal, Mavoor Source:well

Mavoor Gramapanchayath

Rws14- Kottakkunnu Kudivlla Padhathi, Aduvad, Parakkulam,

Mavoor Source:well Mavoor Gramapanchayath

Rws15- Kalluvettukuzhi Kudivella padhathi, Mavoor Source:well

Mavoor Gramapanchayath

Rws16- Modayangal Meethal Koonichimattukunnu Sc Colony

Kudivellapadhathi, Kanniparamba, Mavoor Source:well Mavoor

Gramapanchayath

Rws17- Nalukandathil Kudivellapadhathi, Kakkur

Source:well Kakkur Gramapanchayath

Rws18- Kottarakkunnu Kudivella padhathi, Kakkur Source:well Kakkur

Gramapanchayath

Rws19- Perattumala Kudivellapadhathi, Kakkur

Source:well Kakkur Gramapanchayath

Rws20- Thalappadimala Kudivellapadhathi, Kakkur

Source:well Kakkur Gramapanchayath

Sample Details:January-Rws1: Kattakalam -Peringathparamb Sc Colony Shudhajala Vidharana Padhathi, VilakkumadamJanuary- Rws2:Kunnummal- Cholakkal Kudivella PadhathiJanuary-Rws3:Vilayil Mayangot Sangam Jalasechana PadhathiJanuary-Rws4:Edoliparamb Kacheriparamb Kudivella PadhathiFebruary-April-Rws5: Karuvarapatta Kudivellapadhathi, Kattangal Koduvalli Road, Near BridgeFebruary-April- Rws6:Eranhiparamb Kudivellapadhathi, Kalanthode-Koolimadu RoadFebruary-April-Rws7:Palathummal Kudivellapadhathi, ChathamangalamFebruary-April-Rws8:Naduvath Thazham KudivellapadhathiMay-July-Rws9: Parathikunnu Kudivella PadhathiMay-July- Rws10:Kottuvayal Kudivellapadhathi

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Sl.No. Parameter Unit SAMPLE ID

15.01.2019 15.01.2019 15.01.2019 15.01.2019 14.03.2019 14.03.2019 14.03.2019 14.03.2019 18.06.2019 18.06.2019

RWS1 RWS2 RWS3 RWS4 RWS5 RWS6 RWS7 RWS8 RWS9 RWS10

1 Colour Hazen NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

2 Odour _ No Odour No Odour No Odour No Odour No Odour No Odour No Odour No Odour No Odour No Odour

3 pH _ 4.9 5.5 6 5.4 6.4 5.5 6.1 5.8 5.5 5.4

4 Electrical Conductivity μs/cm 57 71 97 69 68 41 76 62 49 55

5 Turbidity NTU * * * * * * * * * *

6 Iron(as Fe) mg/l BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

7Total hardness(as CaCO3 )

" 7 9 28 16 15 5 19 12 9 10

8 Chloride(as Cl) " 16 18 20 18 11 11 12 13 15 17

9 Nitrate(as NO3) " BDL BDL BDL BDL BDL 1.42 BDL 3.30 1.40 3.13

10 Ammonia(as NH3-N) "

11 Fluoride(as F) " 0.04 BDL BDL 0.04 BDL BDL BDL BDL BDL BDL

12 BOD (3 days at 270C) " BDL 0.9 BDL BDL 0.5 0.6 0.7 BDL 0.9 1

13 Total Coliforms cfu/100ml 50 180 780 1500 10 170 200 600 164 100

14 Fecal Coliforms cfu/100ml 40 100 390 1100 NIL 110 80 400 54 68

Sl.No. Parameter Unit SAMPLE ID

18.06.2019 18.06.2019 17.09.2019 17.09.2019 17.09.2019 17.09.2019 18.11.2019 18.11.2019 18.11.2019 18.11.2019

RWS11 RWS12 RWS13 RWS14 RWS15 RWS16 RWS17 RWS18 RWS19 RWS20

1 Colour Hazen NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

2 Odour _ No Odour No Odour No Odour No Odour No Odour No Odour No Odour No Odour No Odour No Odour

3 pH _ 5.7 5.6 7.3 6.8 6.6 7 7.1 6.5 5.7 5.8

4 Electrical Conductivity μs/cm 203 182 65 60 83 92 182 80 70 81

5 Turbidity NTU * * BDL BDL BDL BDL BDL BDL BDL BDL

6 Iron(as Fe) mg/l BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

7 Total hardness(as CaCO3 ) " 52 43 26 17 6 38 60 28 11 22

8 Chloride(as Cl) " 28 27 14 23 18 18 12 12 16 9

9 Nitrate(as NO3) " 21.7 23.12 4.61 6.64 16.1 BDL 1.2 2.3 15.1 2.9

10 Ammonia(as NH3-N) "

11 Fluoride(as F) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

12 BOD (3 days at 270C) " 1 1.4 BDL BDL BDL BDL 0.8 0.5 BDL BDL

13 Total Coliforms cfu/100ml 38 26 260 140 150 150 500 120 170 220

14 Fecal Coliforms cfu/100ml 28 18 200 120 100 120 220 60 20 70

May-July-Rws11:Muthachikavu KudivellapadhathiMay-July-Rws12:Arayidath KudivellapadhathiAugust-October-Rws13: Ezhinilam Kudivellapadhathi, Parammal, MavoorAugust-October- Rws14:Kottakkunnu Kudivellapadhathi, Aduvad, Parakkulam, MavoorAugust-October-Rws15:Kalluvettukuzhi Kudivellapadhathi, MavoorAugust-October-Rws16:Modayangal Meethal Koonichimattukunnu Sc Colony Kudivellapadhathi, Kanniparamba, MavoorNovember-December-Rws17: Nalukandathil, KakkoorNovember-December- Rws18:Kottarakunnu, KakkurNovember-December-Rws19:Perattumala, KakkurNovember-December-Rws20:Thalappadimala, Kakkur

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9.4 kaSaragod diStrict

Station No.01(RW117): Ammankode MogarGrama panchayath:

Muliyar, No. of houses: 9 houses Date of Sampling:

16.01.2019

Station No.02(RW118): Kunhimoola

Grama panchayath: Muliyar, No. of houses:

14 houses Date of Sampling: 16.01.2019

Station No.03(RW119): Eriyanni Payam

Grama panchayath: Muliyar, No. of houses:

30 houses Date of Sampling: 16.01.2019

Station No.03(RW119): Eriyanni Payam

Grama panchayath: Muliyar, No. of houses:

30 houses Date of Sampling: 16.01.2019

Station No.05(RW121): Thurav Grama panchayath:

KAYYUR CHEEMENI No. Of houses: 30

houses Date of Sampling: 16.02.2019

Station No.09(RW125): Perumbally Grama panchayath: Kallar

No. of houses: All over the Panchayath Date of Sampling: 16.03.2019

Station No.10(RW126): Kottakunnu Grama

panchayath: East - Eleri No. of houses: 15 houses Date of

Sampling: 25.04.2019

Station No.11(RW127): Kadumeni Grama

panchayath: East - Eleri No. of houses: 35 houses

Date of Sampling: 25.04.2019

Station No.12(RW128): Periya Grama panchayath:

Pullur - Periya, No. of houses: 19 houses, Date of Sampling:

07.05.2019

Station No.06(RW122): Kizhakkekkara Grama panchayath: KAYYUR

CHEEMENI, No. Of houses: 55 houses, Date of

Sampling: 16.02.2019

Station No.07(RW123): Oklavu - Kottakandam

Grama panchayath: KallarNo. Of houses: 15 houses

Date of Sampling: 16.03.2019

Station No.08(RW124): Pookunnamthattu

Grama panchayath: KallarNo. of houses: 20 houses

Date of Sampling: 16.03.2019

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Station No.13(RW129): Kuniya, Grama panchayath:

Pullur - Periya, No. of houses: 24 houses, Date of

Sampling: 07.05.2019

Station No.17 (RW133): Orkkalam, Grama

panchayath: Cheruvathur No. of houses: 427 Houses

Date of Sampling: 18.06.2019

Station No.21 (RW137): Vazhapanthal, Grama

panchayath: Kinanoor - Karinthalam, No. of houses:

130 Houses, Date of Sampling: 21.08.2019

Station No.22 (RW138): Chooripara, Grama

panchayath: Kinanoor - Karinthalam, No. of houses:

120 Houses, Date of Sampling: 21.08.2019

Station No.23 (RW139): Kaniyada, Grama

panchayath: Kinanoor - Karinthalam, No. of houses:

140 Houses, Date of Sampling: 21.08.2019

Station No.24 (RW140): Nedumthudupp

Grama panchayath: MadikaiNo. of houses: 174 Houses

Date of Sampling: 23.09.2019

Station No.18 (RW134): Nedumthudupp

Grama panchayath: MadikaiNo. of houses: 4 houses

Date of Sampling: 11.07.2019

Station No.19 (RW135): Koottapunna

Grama panchayath: MadikaiNo. of houses: 25 houses

Date of Sampling: 11.07.2019

Station No.20 (RW136): Koranganadi

Grama panchayath: MadikaiNo. of houses: 17 houses

Date of Sampling: 11.07.2019

Station No.14 (RW130): Echikundu, Grama

panchayath: Pullur - PeriyaNo. of houses: 38 houses

Date of Sampling: 07.05.2019

Station No15 (RW131): Madakkara, Grama

panchayath: Cheruvathur No. of houses: Harbour

Date of Sampling: 18.06.2019

Station No.16(RW132): Kulangattu, Grama

panchayath: Cheruvathur No. of houses: More than

1000 Houses, Date of Sampling: 18.06.2019

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Station No.25 (RW141): Koottapunna, Grama panchayath: Madikai

No. of houses: 25 HousesDate of Sampling:

23.09.2019

Station No.29(RW145): Mavungal, Grama

panchayath: PanathadyNo. of houses: 5 Houses

Date of Sampling: 28.10.2019

Station No.33 (RW149): Olavara, Grama panchayath: Trikaripur, No. of houses: 60 Houses, Date of Sampling:

18.12.2019

Station No.34 (RW150): Olavar - Alankara

Grama panchayath: Trikaripur, No. of houses: 25 Houses, Date of Sampling:

18.12.2019

Station No.35(RW151): Thykkeal, Grama

panchayath: TrikaripurNo. of houses: 50 Houses

Date of Sampling: 18.12.2019

Station No.30(RW146): Karadukka, Grama

panchayath: KaradukkaNo. of houses: 28 Houses

Date of Sampling: 20.11.2019

Station No.31 (RW147): Karimbuvalappu

Grama panchayath: Karadukka, No. of houses: 24

Houses, Date of Sampling: 20.11.2019

Station No.32 (RW148): Adukkam, Grama

panchayath: KaradukkaNo. of houses: 42 Houses

Date of Sampling: 20.11.2019

Station No.26(RW142): Panathur, Grama

panchayath: PanathadyNo. of houses: 5 Houses

Date of Sampling: 28.10.2019

Station No.27(RW143): Panathur BusstandGrama panchayath:

Panathady, No. of houses: 5 Houses, Date of Sampling:

28.10.2019

Station No.28(RW144): Chiramkadavu

Grama panchayath: Panathady, No. of houses: 5 Houses, Date of Sampling:

28.10.2019

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Sl.No. Parameter Unit SAMPLE ID

16.01.19 16.01.19 16.01.19 16.02.19 16.02.19 16.02.19 16.03.19 16.03.19 16.03.19 25.04.19 25.04.19

RW117 RW118 RW119 RW120 RW121 RW122 RW123 RW124 RW125 RW126 RW127

1 Colour Hazen <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

2 Odour _ None None None None None None None None None None None

3 pH _ 6.9 7.0 7.3 8.8 8.4 8.3 8.0 7.8 7.7 7.3 6.8

4 Electrical Conductivity μs/cm 228 167 114 38 191 104 62 80 128 75 92

5 Turbidity NTU 0.3 2 1.6 0.5 0.1 0.6 0.1 0.1 0.2 0.5 0.6

6 Iron(as Fe) mg/l BDL 0.35 0.39 BDL 0.11 BDL BDL 0.04 0.09 BDL BDL

7 Total hardness(as CaCO3 ) " 102 72 43 20 130 51 25 28 60 30 30

8 Chloride(as Cl) " 10 10 12 7 5 6 10 16 10 7 13

9 Nitrate(as NO3) " BDL BDL BDL 0.123 0.0443 0.044 0.48 0.75 0.21 0.044 0.290

10 Ammonia(as NH3-N) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

11 Fluoride(as F) " 0.258 BDL 0.68 0.18 0.50 0.16 0.36 BDL 0.50 BDL BDL

12 BOD(3 days at 270C) " 0.9 2.5 2.3 1.0 1.7 1.0 0.6 0.3 0.3 1.5 2.6

13 Total Coliforms cfu/100ml 20 10 20 10 80 20 20 10 20 150 40

14 Fecal Coliforms cfu/100ml ND ND ND ND 36 ND 4 ND 8 20 24

Sample 01 : RW 117 - Ammankode Mogar SC Colony Tank. Water supply to 9 Houses, Muliyar PanchayathSample 02 : RW 118 - Kunhimoola SC Colony Water Supply Tank. Water supply to 14 Houses, Muliyar PanchayathSample 03 : RW 119 - Eriyanni - Payam SC Colony Tank. Water supply to 30 Houses, Muliyar PanchayathSample 04 : RW 120 - Kariyapp Rajiv Gandhi Kudivella Padhathi Water Tank. Water supply to 25 Houses, Kayyur - Cheeemeni

PanchayathSample 05 : RW 121 - Thurav - Samagra Kudivella Padhathi (RGDWM) Water Tank. Water supply to 30 Houses, Kayyur -

Cheeemeni PanchayathSample 06 : RW 122 - Cheemeni Kizhakkekara Meethal Water Supply Scheme. Water supply to 55 Houses, Kayyur - Cheeemeni

PanchayathSample 07 : RW 123 - Oklavu-Kottakandam ST Colony Kudivella Padhathi. Water supply to 15 Houses, Kallar PanchayathSample 08 : RW 124 - Pookuunnamthattu Water Supply Scheme. Water supply to 20 Houses, Kallar PanchayathSample 09 : RW 125 - Kappungara,Perumbally Water Supply Scheme. Water supply to all over the panchayath, Kallar PanchayathSample 10 : RW 126 - Kottakunnu, ST Colony Tank. Water supply to 15 Houses, East Eleri PanchayathSample 11 : RW 127 - Vietnum colony water tank,Pattemkanam, Kadumeni. Water supply to 35 Houses, East Eleri Panchayath

Sl.No. Parameter Unit SAMPLE ID

07.05.19 07.05.19 07.05.19 18.06.19 18.06.19 18.06.19 11.07.19 11.07.19 11.07.19 21.08.19 21.08.19 21.08.19

RW128 RW129 RW130 RW131 RW132 RW133 RW134 RW135 RW136 RW137 RW138 RW139

1 Colour Hazen <5 <5 <5 <6 <7 <8 <9 <10 <11 <12 <13 <14

2 Odour _ None None None None None None None None None None None None

3 pH _ 7.4 7.5 7.5 7.9 5.6 5.4 7.1 7.0 7.0 6.5 6.7 6.6

4 Electrical Conductivity μs/cm 189 163 200 296 375 343 163 210 141 64 53 63

5 Turbidity NTU 1.1 0.9 1.1 0.6 0.7 2.6 1.2 1 4 0.2 0.5 1.3

6 Iron(as Fe) mg/l BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

7 Total hardness(as CaCO3) " 95 80 102 120 72 48 84 113 75 26 29 31

8 Chloride(as Cl) " 8 10 8 40 120 100 8 10 10 10 8 5

9 Nitrate(as NO3) " BDL BDL BDL 0.09 0.89 0.09 0.04 0.09 0.09 BDL 0.01 0.00

10 Ammonia(as NH3-N) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

11 Fluoride(as F) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

12 BOD(3 days at 270C) " 1.3 1.0 0.3 1.0 0.8 0.7 0.3 0.3 0.7 2.9 1.3 2

13 Total Coliforms cfu/100ml 150 230 580 80 20 100 100 30 110 70 80 10

14 Fecal Coliforms cfu/100ml 5 20 84 8 ND 8 ND ND ND 4 ND ND

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Sample 12 : RW 128 - Periya Lakshamveedu Kudivellapadhathi Tank. Water supply to 19 Houses,Pullur - Periya PanchayathSample 13 : RW 129 - Chakkliyar colony water tank,Kuniya. Water supply to 24 Houses, Pullur - Periya PanchayathSample 14 : RW 130 - Jalanidhi water supply scheme Lakshamveedu Vayararavalli Echikundu. Water supply to 38 Houses, Pullur

- Periya PanchayathSample 15 : RW 131 - Madakkara Harbour Tank, Cheruvathur. Water supply to Harbour, Cheruvathur PanchayathSample 16 : RW 132 - Kulangattu water supply scheme,Cheruvathur. Water supply to More than 1000 Houses, Cheruvathur

PanchayathSample 17 : RW 133 - Orkkalam shudhajala vitharan padhathi. Water supply to 427 Houses, Cheruvathur PanchayathSample 18 : RW 134 - Nedumthudup ST Colony water supply scheme. Water supply to 4 Houses, Madikai PanchayathSample 19 : RW 135 - Koottappunna ST kudivella padhathi. Water supply to 25 Houses, Madikai PanchayathSample 20 : RW 136 - Nedumthudup colony water supply scheme,Koranganadi. Water supply to 17 Houses, Madikai PanchayathSample 21 : RW 137 - Vazhapanthal Jalanidhi water supply scheme. Water supply to 130 Houses, Kinanoor - Karinthalam

PanchayathSample 22 : RW 138 - Chooripara Jalanidhi Water Supply Scheme. Water supply to 120 Houses, Kinanoor - Karinthalam

PanchayathSample 23 : RW 139 - Kaniyada Moolakke Water Supply Scheme. Water supply to 140 Houses, Kinanoor - Karinthalam Panchayath

Sl.No. Parameter Unit SAMPLE ID

23.09.19 23.09.19 28.10.19 28.10.19 28.10.19 28.10.19 20.11.19 20.11.19 20.11.19 18.12.19 18.12.19 18.12.19

RW 140 RW 141 RW 142 RW 143 RW 144 RW 145 RW 146 RW 147 RW 148 RW 149 RW 150 RW 151

1 Colour Hazen <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5

2 Odour _ None None None None None None None None None None None None

3 pH _ 6.4 6.7 6.9 5.7 5.9 6.0 6.7 6.9 7.1 5.5 5.3 5.3

4 Electrical Conductivity μs/cm 135 179 69 73 45 55 133 159 255 164 73 152

5 Turbidity NTU 2.3 1.8 0.8 0.9 0.8 1.3 1 4.2 0.6 1.3 0.5 0.5

6 Iron(as Fe) mg/l BDL BDL BDL 0.01 BDL BDL BDL BDL BDL BDL 0.01 BDL

7Total hardness(as

CaCO3) " 71 83 32 35 24 30 55 63 110 50 20 53

8 Chloride(as Cl) " 7 8 12 6 4 4 12 10 10 20 12 26

9 Nitrate(as NO3) " 0.05 0.09 0.11 0.53 0.05 0.05 0.63 0.04 0.93 0.49 0.71 0.95

10 Ammonia(as NH3-N) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

11 Fluoride(as F) " BDL BDL 0.02 0.03 0.02 0.02 0.12 0.31 0.01 0.01 0.01 0.15

12 BOD(3 days at 270C) " 1.6 2.6 0.4 1.1 0.4 1.1 0.2 0.1 0.1 0.5 1.1 2.1

13 Total Coliforms cfu/100ml 50 300 20 30 50 20 70 100 60 20 10 520

14 Fecal Coliforms cfu/100ml ND 64 ND ND 4 ND 24 20 12 ND ND 76

Sample 24 : RW 140 - Nedumthudup colony water supply scheme,Koranganadi. Water supply to 174 Houses, Madikai Panchayath

Sample 25 : RW 141 - Koottappunna ST Kudivella Padhathi. Water supply to 25 Houses, Madikai PanchayathSample 26 : RW 142 - Open well near Panathur Anganawadi near busstand. Water supply to 5 Houses, Panathady PanchayathSample 27 : RW 143 - Open well in panathur busstand behind panchayath office. Water supply to Not Started, Panathady

PanchayathSample 28 : RW 144 - Chiramkadavu water supply scheme. Water supply to More than 500 Houses, Panathady PanchayathSample 29 : RW 145 - Mavungal RWSS Kudivella padhadhi. Water supply to 100 Houses, Panathady PanchayathSample 30 : RW 146 - Ugraniadukkam Jalanidhi Kudivella Padhadhi Karadukka. Water supply to 28 Houses, Karadukka PanchayathSample 31 : RW 147 - Jalanidhi Kerala Gramina Shudhajala Vitharana Shuchitha Padhadhi ,Karimbuvalappu,Karadkka. Water

supply to 24 Houses, KaradukkaPanchayathSample 32 : RW 148 - Jalanidhi Kerala Gramina Shudhajala Vitharana Shuchitha Padhadhi, Adukkam,Karadkka. Water supply to

42 Houses, Kinanoor - Karadukka PanchayathSample 33 : RW 149 - RGNDWM Jaladhara II RWSS, Olavara. Water supply to 60 Houses, Trikaripur PanchayathSample 34 : RW 150 - RGNDWM Sector Reforms Project, RWSS, Olavara - Akarankara. Water supply to 25 Houses, Trikaripur

PanchayathSample 35 : RW 151 - RGNDWM Sector Reforms Project, RWSS, Thykkeal Sudhajala Vitharana Padhathi. Water supply to 50

Houses, Trikaripur Panchayath

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9.5 wayanad diStrict

Padippura paniya colony

Palakkolly colony

Vannathara colony

Colimoola paniyacolony Palladamkunnu kuruma colony

badarkandam kuruma colony Mundavara paniya colony

Sl.No. Parameter Unit SAMPLE ID

10/1/19 10/1/19 10/1/19 10/1/19 10/1/19 7/2/19 7/2/19 7/2/19 7/2/19 7/2/19

1 2 3 4 5 6 7 8 9 10

1 Colour Hazen NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

2 Odour _ NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

3 pH _ 7.5 7.2 6.9 6.8 7 7.7 7 7.2 7.4 7

4 Electrical Conductivity μs/cm 251 299 324 1527 616 636 642 582 228 218

5 Turbidity NTU NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

6 Iron(as Fe) mg/l 0.001 0.004 0.003 0.15 0.002 0.007 0.002 0.008 0.003 0.002

7Total hardness(as

CaCO3 ) " 68 89 95 352 142 203 194 127 57 94

8 Chloride(as Cl) " 44 45 49 248 115 51 78 89 34 17

9 Nitrate(as NO3) " 0.25 0.38 0.23 1.5 0.84 0.29 0.38 0.21 0.18 0.02

10 Ammonia(as NH3-N) "

11 Fluoride(as F) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

12 BOD(3 days at 270C) " 0.1 0.3 1.5 1.1 0.2 1.4 0.2 0.3 0.5 0.3

13 Total Coliforms cfu/100ml 304 260 240 256 262 140 162 146 126 64

14 Fecal Coliforms cfu/100ml 222 250 144 118 14 34 46 112 40 36

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Sl.No. Parameter Unit SAMPLE ID

5/3/19 5/3/19 5/3/19 5/3/19 5/3/19 6/4/19 6/4/19 6/4/19 6/4/19 6/4/19

11 12 13 14 15 16 17 18 19 20

1 Colour Hazen NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

2 Odour _ NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

3 pH _ 6.5 6.4 5.3 6.6 6.3 7.8 7.9 7.8 7.7 7.7

4Electrical

Conductivityμs/cm 94 126 108 523 118 133 113 68 62 138

5 Turbidity NTU NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

6 Iron(as Fe) mg/l 0.002 0.005 0.003 0.009 0.002 0.001 BDL 0.008 0.002 0.007

7Total hardness

(as CaCO3 ) " 19 37 31 144 30 50 35 22 22 54

8 Chloride(as Cl) " 17 14 13 53 20 20 12 15 10 14

9 Nitrate(as NO3) " 0.13 0.13 0.13 0.25 0.19 0.13 0.08 0.02 0.13 0.13

10 Ammonia(as NH3-N) "

11 Fluoride(as F) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

12 BOD(3 days at 270C) " 0.6 1 0.2 0.5 0.7 0.1 0.1 0.1 0.1 0.7

13 Total Coliforms cfu/100ml 106 88 44 32 20 116 168 56 104 50

14 Fecal Coliforms cfu/100ml 40 22 14 14 0 58 90 0 50 2

SAMPLE 11 Welll at Chembaka Colony,VenniyodeSAMPLE 12 Well at Kolakkimottankunnu colony , VenniyodeSAMPLE 13 Well at Vasthikunnu colony 1 ,VenniyodeSAMPLE 14 Well at Vasthikunnu colony 2 ,VenniyodeSAMPLE 15 Well at Kolavayal colony ,VenniyodeSAMPLE 16 Welll at kurunthan colony ColonySAMPLE 17 Well at arppanavayal colony, VegappalliSAMPLE 18 Well at Cholakkunnu colony ,VegappalliSAMPLE 19 Well at Manjilerry colony ,VegappalliSAMPLE 20 Well atChakram colony ,Vegappalli

Sl.No. Parameter Unit SAMPLE ID

7/5/19 7/5/19 7/5/19 7/5/19 7/5/19 4/6/19 4/6/19 4/6/19 4/6/19 6/4/19

21 22 23 24 25 26 27 28 29 30

1 Colour Hazen NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

2 Odour _ NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

3 pH _ 7.8 7.1 6.2 6.6 6.4 7.9 7.5 8.1 8.1 8

4Electrical

Conductivityμs/cm 233 266 818 208 301 216 112 409 415 409

SAMPLE 1 Welll at Odappallam Colony,OdappallamSAMPLE 2 Well at Thoramangalam Kuruma colony , OdappallamSAMPLE 3 Well at Thannikkunnu colony ,ValluvadySAMPLE 4 Well at Karipoor colony ,KaripoorSAMPLE 5 Well at Manalady colony ,ManaladySAMPLE 6 Welll at Koodalkkadave Colony,PoothadiSAMPLE 7 Well at Chembakappatta colony , PoothadiSAMPLE 8 Well at Well at harithagiri colony ,PoothadiSAMPLE 10 Well at Madathumpadi colony ,Poothadi

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Sl.No. Parameter Unit SAMPLE ID

5/7/19 5/7/19 5/7/19 5/7/19 5/7/19 7/8/19 7/8/19 7/8/19 7/8/19 7/8/19

31 32 33 34 35 36 37 38 39 40

1 Colour Hazen NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

2 Odour _ NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

3 pH _ 8 8 7.5 7.8 7.9 6.9 7.1 7.2 7 7

4Electrical

Conductivityμs/cm 1628 622 299 899 538 469 393 403 293 189

5 Turbidity NTU NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

6 Iron(as Fe) mg/l 0.02 0.02 0.05 0.18 0.03 0.17 0.04 0.16 BDL BDL

7Total hardness

(as CaCO3 ) " 565 210 95 317 221 193 137 165 116 61

8 Chloride(as Cl) " 305 105 38 176 39 65 64 57 35 22

9 Nitrate(as NO3) " 0.28 0.3 0.16 0.31 0.21 0.18 0.21 0.13 0.2 0.13

10 Ammonia(as NH3-N) "

11 Fluoride(as F) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

12 BOD (3 days at 270C) " 3.7 1.7 1.2 2.2 2.8 0.8 0.6 0.4 0.6 1.3

13 Total Coliforms cfu/100ml 24 36 78 54 66 60 96 84 76 270

14 Fecal Coliforms cfu/100ml 14 20 38 14 44 26 14 32 34 196

SAMPLE 21 Welll at Armad Colony,ArmadSAMPLE 22 Well at Puthannoor Kalkory colony, ChethalayamSAMPLE 23 Well at padippura paniya colony ,ChethalayamSAMPLE 24 Well at Kombanmoola kattunaikka colony ,ChethalayamSAMPLE 25 Well at Madayamvayal paniya colony ,ChethalayamSAMPLE 26 Welll at Gunnika parambu Colony1,ThirunellySAMPLE 27 Well at Gunnika parambu Colony 2,ThirunellySAMPLE 28 Well at Anakyam colony ,TholpettySAMPLE 29 Well at Nedumvayal colony ,TholpettySAMPLE 30 Well at Begoor colony ,Thirunelly

5 Turbidity NTU NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

6 Iron(as Fe) mg/l 0.001 0.003 0.018 0.002 0.004 0.17 0.19 0.02 BDL 0.07

7Total hardness

(as CaCO3 ) " 82 68 232 88 79 84 50 168 142 148

8 Chloride(as Cl) " 22 48 140 19 65 30 10 46 73 69

9 Nitrate(as NO3) " 0.21 0.32 0.21 0.13 0.13 0.13 0.1 0.21 0.23 0.1

10 Ammonia(as NH3-N) "

11 Fluoride(as F) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

12 BOD(3 days at 270C) " 1.1 0.8 4.2 0.1 0.6 0.9 0.4 0.6 1 0.5

13 Total Coliforms cfu/100ml 32 120 70 96 48 208 182 240 264 146

14 Fecal Coliforms cfu/100ml 28 26 42 28 20 78 52 112 90 14

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Sl.No. Parameter Unit SAMPLE ID

4/9/19 4/9/19 4/9/19 4/9/19 4/9/19 11/10/19 11/10/19 11/10/19 11/10/19 11/10/19

41 42 43 44 45 46 47 48 49 50

1 Colour Hazen NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

2 Odour _ NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

3 pH _ 6.7 6.7 7 6.8 6.7 6.6 6.8 6.7 6.9 6.9

4Electrical

Conductivityμs/cm 511 795 191 682 850 208 177 219 725 362

5 Turbidity NTU NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

6 Iron (as Fe) mg/l 0.005 0.004 BDL 0.008 BDL 0.004 0.12 0.007 BDL 0.09

7Total hardness

(as CaCO3 ) " 197 212 69 281 304 76 58 71 163 98

8Chloride(as Cl)

" 38 141 15 124 151 29 24 24 149 54

9 Nitrate(as NO3) " 0.13 0.29 0.1 0.21 0.25 0.18 0.07 0.1 0.34 0.21

10Ammonia(as

NH3-N)"

11 Fluoride(as F) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

12BOD (3 days at

270C)" 0.3 0.8 0.2 1.1 1.7 0.3 0.3 0.7 0.1 0.3

13 Total Coliforms cfu/100ml 36 124 12 132 42 6 34 46 42 172

14 Fecal Coliforms cfu/100ml 18 32 2 84 32 2 0 20 38 0

SAMPLE 41 Welll at Koottampali colony,ThelambattaSAMPLE 42 Well at Eramkolly colony,ThelambettaSAMPLE 43 Well at Ullilam Colony ,ThelambattaSAMPLE 44 Well at Mulanchira colony , ThelambattaSAMPLE 45 Well at Malappura colony ,NaikkettySAMPLE 46 Welll at Choramkolly colony,KannankodeSAMPLE 47 Well at Karakappali colony,NenmenikkunnuSAMPLE 48 Well at Kolipali Colony ,NenmenikkunnuSAMPLE 49 Well at Kundanamkunnu colony , EruthkalluSAMPLE 50 Well at Kakkamala colony ,Kakkamala

SAMPLE 31 Welll at Valamangamoola Colony 1,Pulpally

SAMPLE 32 Well at Valamangamoola Colony 2,Pulpally

SAMPLE 33 Well at Valamangamoola Colony 3,Pulpally

SAMPLE 34 Well at Perikkallor colony , Perikkallor

SAMPLE 35 Well at Moonnupalam colony ,Perikkallor

SAMPLE 36 Welll at Madalpadi colony,Pulpally

SAMPLE 37 Well at Palakkolly colony,Pulpally

SAMPLE 38 Well at Udhumakkara Colony ,Mullankolly

SAMPLE 39 Well at Karakkandy pniya colony , Mullankolly

SAMPLE 40 Well at Kollivayal colony ,Mullankolly

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Sl.No. Parameter Unit SAMPLE ID

5/11/19 5/11/19 5/11/19 5/11/19 5/11/19 9/12/19 9/12/19 9/12/19 9/12/19 9/12/19

51 52 53 54 55 56 57 58 59 60

1 Colour Hazen NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

2 Odour _ NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

3 pH _ 7 6.9 6.8 7 6.9 7.1 6.7 6.6 6.8 6.5

4 Electrical Conductivity μs/cm 237 708 725 315 341 170 161 248 136 373

5 Turbidity NTU NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL

6 Iron(as Fe) mg/l 0.05 0.09 0.104 0.01 0.002 0.02 0.02 0.12 0.07 0.1

7 Total hardness(as CaCO3) " 100 296 312 125 136 44 62 59 42 69

8 Chloride(as Cl) " 13 104 105 63 29 37 12 41 24 70

9 Nitrate(as NO3) " 0.14 0.28 0.21 0.08 0.21 0.21 0.19 0.25 0.08 0.28

10 Ammonia(as NH3-N) "

11 Fluoride(as F) " BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL

12 BOD (3 days at 270C) " 0.7 1.3 1 0.3 1.3 0.8 0.5 0.2 0.3 0.2

13 Total Coliforms cfu/100ml 52 6 78 56 44 20 14 22 28 16

14 Fecal Coliforms cfu/100ml 34 2 50 30 32 4 6 8 18 4

SAMPLE 51 Welll at Alumkalam colony,MuthangaSAMPLE52 Well at Thakarakappadi colony,MuthangaSAMPLE 53 Well at Maikkaa Colony ,MuthangaSAMPLE 54 Well at Kalankandi colony , MuthangaSAMPLE 55 Well at Edathara colony ,MuthangaSAMPLE 56 Welll at Vannathara colony 1,ChulliyodeSAMPLE 57 Well at Vannathara colony 2,ChulliyodeSAMPLE 58 Well at Ambalakkunnu Colony ,ChulliyodeSAMPLE 59 Well at Kolimoola paniya colony , ChulliyodeSAMPLE 60 Well at Kazhambumkara kuruma colony ,Chulliyode

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GENERAL EVALUATIoN oN WATER QUALITY

Rivers play major role in the water cycle of the blue planet and their quality is a direct reflection of the civilization and living standards of the region. Kerala is blessed with 44 rivers and their tributaries. All the rivers in our state are monsoon fed and water scarcity for drinking as well as for other uses are common in summer months at different places. Surface water quality of the water bodies are deteriorating due to various anthropogenic activities.The results of industrialization, urbanization, increased population etc. is felt on the water resources in such a way that the quantity is falling short and quality deteriorating with time. Waste disposal across the world primarily involves dilution by the water courses and various types of such anthropogenic activities constantly pollute the fresh water sources. Seasonal variations in precipitation and surface run off also affect the status of water quality.

Fresh, clean water is a limited resource and delivering clean water to the society is essential for a healthy ecosystem. The quality of water is identified in terms of the physical, chemical, biological and bacteriological parameters. With the ever increasing use of water for domestic, industrial and irrigation the monitoring and assessment of water quality on continual basis has become essential and it conveys the pollution status of a water body and the data generated can be utilized for planning and sustainable development. For identification of the water bodies or their parts where water quality is at variance with water quality criteria, it was felt important to measure quality of that water body or its parts. Central Pollution Control Board (CPCB) has established primary water quality criteria for classifying inland surface waters into various categories (A to E and Below E) based on Designated Best Use (DBU).

Classification of river stretches has been done based on the data generated during the year 2019. The major problem associated with river water quality is the bacterial contamination and 34% of the water bodies monitored under National Water Quality Monitoring Programme (NWMP) and State Water Quality Monitoring Programme (SWMP) are classified into various use based classes on the basis of bacterial population. Apart from the coli form counts, increased BOD, decreased Dissolved Oxygen content and increased Electrical Conductivity are also the major determining factors in the DBU classification.

Aruvippuram in River Neyyar is having average BOD value of 3.5 mg/L and classed into “D”. Munnattumukku and Thiruvallam in River Karamana are classed as “D” because of the low DO content and High BOD values along with increased bacterial population. The station at Pallathukadavu in Karamana River is also reported very low DO content. The sampling locations of Triveni, Kakiyar and Njunangar in River Pamba are having average coli form counts above 5000 MPN/100ml and fall into class “D”. Edatua and Tkakazhi are reported to have average DO content below 4 mg/L and are classed into “D” Naraparamba and Thavanur in River Bharathapuzha fall into “B” class because of the average BOD value. All other stations in Bharathapuzha are classed as “B” because of coli form counts. Kallayi River in Kozhikode district have low DO content, high coli form counts apart from high Electrical Conductivity. All stations in the rivers of Thodupuzha and Munnar are classed as “D” due to the increased coli form colonies. Kadambrayar in River Periyar is classified into “E” because of very low DO content and very high coli form counts. The station Manakkakadavu in Periyar River is reported to have DO average less than 4 mg/L and classed into “E”. Chitrapuzha at Irumbanam is also reported to have low DO content, High total coli forms and thus classed into “E”.

Ground water samples monitored during the year 2019 under NWMP and Source water monitoring of the Rural Water Supply Schemes across the state report the presence of coli form bacteria in 93.1% of the samples. Proximity to septic tanks, unprotected open wells, cluster of housing units and lack of periodical cleaning and disinfection are the reasons for increasing counts of coli forms in well water. Since majority of the people in the state depend on well water for drinking, the quality of well water has to be monitored periodically. Otherwise chances of spreading water borne diseases are more. Hence local administration and health authorities should make all efforts to ensure safe drinking water to the public.

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aMbient aiR Quality data-2019

& tRend analySiS 2010-2019

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High Volume Samplerfor measurement of RSPM, SPM, So2 & Nox

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11. AMBIENT AIR QUALITY DATA

The Kerala State Pollution Control Board is monitoring ambient air quality at 35 locations in the state. The locations fall under the categories of industrial, Commercial, residential and sensitive. Of the 35 stations 27 come under National Ambient Air Quality Monitoring Programme (NAMP) and 8 under State Ambient Air Quality Monitoring programme (SAMP). Sulphur dioxide, Nitrogen oxides and Respirable Suspended Particulate Matter (Class 10 micron size) (RSPM) are monitored regularly. 24 hour ambient air quality monitoring is conducted with a sampling frequency of two days/week. Sulphur dioxide (SO2) and Nitrogen Oxides (NOx) are monitored at four hour interval and Respirable Suspended Particulate Matter (RSPM) at eight hour interval. Monitoring of remaining parameters under NAAQS are in the implementation level. The Board had started PM 2.5 monitoring in all stations. The monitoring and method of analysis are according to the National Ambient Air Quality Standards (NAAQS). The details of ambient air monitoring stations with respect to location, category and data are provided in the ensuing pages.

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11.1. thiruVananthaPuram diStrict

National Ambient Air Quality Network

11.1.1. Monitoring Location : Filatex, Veli, Station code -357 Type : Industrial

Latitude : 8030’16.9”N

Longitude : 76053’47”E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM) .

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11.1.1 Thiruvananthapuram Category: Industrial

Ambient Air Quality Trend 2019Filatex-Veli-Stn Code:357

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

Parameter Sulphur dioxide μg/m³ Nitrogen Dioxide μg/m³ Respirable Suspended Particulate matter μg/m³

24 h ave Limit :80 μg/m³ ,max 80 μg/m³ ,max 100 μg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 15.46 1.18 13.10 16.50 10 26.20 1.50 22.70 27.80 10 55 7 47 66 10

Feb 13.20 0.80 12.10 14.10 9 25.86 2.98 19.70 28.50 9 50 7 41 60 9

Mar 22.02 4.35 13.60 28.50 10 30.06 4.83 24.10 39.50 10 54 7 46 68 10

Apr 10.25 1.38 8.50 12.10 6 15.92 2.38 13.60 18.90 6 40 10 23 51 6

May 7.77 0.84 6.70 9.00 11 17.67 2.01 12.80 20.40 11 36 5 26 47 11

Jun 6.48 0.65 5.80 7.40 8 15.45 2.01 13.50 19.50 8 35 4 29 41 8

Jul 6.51 0.66 5.80 7.70 10 11.95 1.74 9.80 16.50 10 37 8 26 52 10

Aug 7.14 1.31 5.90 10.00 9 12.81 0.87 11.40 14.10 9 35 4 30 44 9

Sep 7.03 0.81 5.90 8.40 8 12.18 0.58 11.40 13.20 8 35 3 31 40 8

Oct 6.77 1.18 5.50 8.20 7 11.31 1.14 10.20 13.30 7 44 11 33 63 7

Nov 7.72 1.18 6.30 9.80 9 12.76 0.83 11.60 14.10 9 42 9 27 52 9

Dec 7.35 0.67 6.50 8.30 8 13.50 0.86 12.30 15.10 8 47 12 31 58 8

Annual Average 9.81 μg/m³ 17.14 μg/m³ 43 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 6.33 6.65 6.56 6.78 6.86 7.35 17.6 16.7 16.38 9.81 30

NOX 25.36 24.64 22.27 22.96 22.27 25.04 24.04 26.45 24.82 17.14 40

RSPM 49.13 49.15 50.93 51.26 51.26 53 53 51 54 43 60

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11.1.2 Monitoring Location : SMV School, Over Bridge, Station code :181 Type : Sensitive

Latitude : 8029’20”N

Longitude : 76056’53.3”E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

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11.1.2 SMV School, Over Bridge Category: Sensitive

SMV School-Stn Code:181Ambient Air Quality Data - 2019

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³Respirable Suspended Particulate

matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 6.17 0.33 5.70 6.60 10 16.26 0.70 15.20 17.30 10 52 7 42 68 10

Feb 13.86 1.25 12.50 16.60 9 25.96 2.87 20.70 29.60 9 48 8 41 64 9

Mar 16.99 3.72 11.40 22.20 10 25.30 4.16 15.70 31.60 10 49 9 36 65 10

Apr 10.57 2.17 8.80 14.30 6 16.52 2.77 12.20 20.30 6 42 6 33 50 6

May 8.00 0.94 6.80 9.90 11 17.80 1.55 15.50 19.70 11 39 6 32 50 11

Jun 6.94 0.95 5.30 8.00 8 16.36 2.49 13.00 20.70 8 38 7 31 51 8

Jul 6.63 0.84 5.40 7.80 10 10.13 3.05 4.50 12.40 10 41 11 30 61 10

Aug 6.98 0.71 5.40 7.80 9 12.92 0.91 11.50 14.10 9 37 6 29 46 9

Sep 7.79 0.58 7.00 8.70 8 12.76 0.59 11.50 13.40 8 35 3 31 38 8

Oct 6.03 1.15 4.20 7.70 7 11.10 1.43 9.30 12.80 7 38 3 36 44 7

Nov 7.69 1.35 5.90 10.00 9 12.66 1.14 11.00 14.30 9 39 5 28 46 9

Dec 7.76 1.22 5.7 9.2 8 14.03 2.18 11.7 18.8 8 44 8 30 53 8

Annual Average8.78 μg/m³ 15.98 μg/m³ 42 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 6.74 6.9 6.96 7.06 7.68 7.82 7.79 7.78 6.7 8.78 20

NOX 27.19 27.39 23.6 24.18 24.65 26.14 26.42 26.04 24.23 15.98 30

RSPM 56.2 56.68 54.03 53.53 51.64 56 53 49 48 42 60

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11.1.3. Monitoring Location : Cosmopolitan Hospital, Murinjapalam Station code : 419

Type : Sensitive

Latitude : 8031’1.4”N

Longitude : 76056’8.4”E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 279

Kerala State Pollution Control Board

11. 1.3. Cosmopolitan Hospital, Murinjapalam Category: Sensitive

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

COSMOPOLITAN HOSPITAL-Stn Code 419Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 6.83 0.54 6.10 7.60 10 11.68 0.81 10.90 13.00 10 53 7 44 65 10

Feb 12.82 1.34 9.70 14.30 9 23.99 4.98 13.40 28.60 9 50 9 37 63 9

Mar 7.72 1.31 6.00 9.90 10 11.98 1.80 7.70 14.00 10 43 3 40 48 10

Apr 10.57 0.93 9.30 11.90 6 13.03 1.68 9.90 14.70 6 34 10 22 48 6

May 8.04 0.95 6.40 9.60 11 18.20 1.92 15.50 22.40 11 35 6 27 43 11

Jun 6.73 1.11 5.20 8.10 8 15.71 2.84 12.90 21.00 8 34 3 30 41 8

Jul 7.26 0.83 5.90 8.20 10 12.55 4.94 4.50 24.70 10 34 6 26 44 10

Aug 7.10 1.00 5.30 8.70 9 12.27 1.32 10.60 14.20 9 36 5 31 45 9

Sep 7.24 0.97 5.60 8.50 8 12.43 0.64 11.60 13.30 8 35 4 31 43 8

Oct 6.83 2.76 3.00 12.00 7 11.31 1.52 8.60 13.50 7 40 5 35 49 7

Nov 7.72 1.31 6.00 9.90 9 11.98 1.80 7.70 14.00 9 43 3 38 48 9

Dec 7.36 0.78 6.4 8.3 8 13.18 1.88 11.8 17.7 8 49 6 44 59 8

Annual Average6.24 μg/m³ 14.03 μg/m³ 40 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 6.44 6.5 7.33 6.92 6.87 7.32 7.3 7.48 5.75 6.24 20

NOX 25.87 25.73 22.38 22.64 23.25 25.59 25.84 25.47 21.58 14.03 30

RSPM 50.33 51.05 52.66 52.08 50.35 55 53 48 45 40 60

0

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70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

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11.1.4. Monitoring Location : Plamoodu Station code : 358 Type : Residential & Others

Latitude : 80 30’49.6”N

Longitude : 76066’45.2”E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 281

Kerala State Pollution Control Board

11. 1. 4. Plamoodu Category: Residential

Plamoodu-Stn Code:358Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 6.94 0.38 6.40 7.50 9 23.00 0.87 21.90 24.70 9 53 3 49 56 9

Feb 12.37 1.81 9.70 14.80 9 22.91 5.21 13.40 28.90 9 48 5 42 55 9

Mar 11.28 3.22 7.90 17.70 10 23.90 6.71 15.30 33.70 10 49 5 42 58 10

Apr 10.07 1.70 7.10 11.70 6 13.73 2.80 8.80 16.60 6 39 4 33 43 6

May 8.15 0.89 7.00 9.80 11 18.10 2.73 13.30 22.90 11 40 5 28 48 11

Jun 7.46 1.04 5.70 8.80 8 16.90 1.92 14.80 21.00 8 33 3 29 38 8

Jul 6.68 0.70 5.20 7.60 10 10.36 2.38 4.50 12.70 10 36 6 26 45 10

Aug 6.90 1.55 5.20 9.60 9 12.36 1.16 10.60 13.50 9 38 6 31 49 9

Sep 6.90 0.57 6.10 7.60 8 12.35 0.47 11.90 13.30 8 35 4 30 43 8

Oct 7.07 2.27 3.80 10.80 7 11.79 1.12 10.40 13.50 7 39 8 31 53 7

Nov 7.93 2.05 5.40 11.50 9 12.62 1.68 10.80 16.20 9 42 11 26 57 9

Dec 7.01 0.80 5.6 8.2 8 14.13 2.22 12.5 19.3 8 45 9 32 57 8

Annual Average8.23 μg/m³ 16.01 μg/m³ 41 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 6.33 6.65 6.56 6.78 6.86 7.35 7.36 7.7 7.49 8.23 30

NOX 25.36 24.64 22.27 22.96 22.27 25.04 24.99 26.13 23.67 16.01 40

RSPM 49.13 49.15 50.93 51.26 51.26 53 51 49 50 41 60

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282

11.2..1. Monitoring Location : Kadappakkada, Station code : 621 Type : Residential & Others

Latitude : 80 88.445 N

Longitude : 760 58.347 E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

11.2. koLLam diStrict

Directory 2019 283

Kerala State Pollution Control Board

11.2.1 KSPCB, DO, Kadapakkada Categor y: Residential & Others

KADAPPAKKADA-Stn Code: 621Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 45.37 2.65 40.67 49.67 10

Feb 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 42.63 3.28 34.33 46.00 10

Mar 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 45.40 2.00 41.67 48.30 10

Apr 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 46.50 1.93 45.00 50.00 8

May 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 46.67 2.00 44.00 50.00 9

Jun 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 41.11 4.08 32.00 46.00 9

Jul 2.57 0.38 2.00 2.90 10 4.66 0.34 4.50 5.30 10 45.20 1.62 43.00 48.00 10

Aug 2.58 0.33 2.00 2.90 9 4.84 0.55 4.50 6.00 9 46.22 1.79 44.00 49.00 9

Sep 2.44 0.34 2.00 2.90 8 4.50 0.00 4.50 4.50 8 45.88 1.25 44.00 38.67 8

Oct 2.19 0.16 2.00 2.30 8 5.35 1.15 4.50 8.00 8 45.00 1.51 43.00 48.00 8

Nov 2.21 0.24 2.00 2.70 9 4.86 0.58 4.50 6.10 9 44.78 1.64 42.00 47.00 9

Dec 2.24 0.13 2.00 2.30 10 4.90 0.42 4.50 5.30 10 45.00 1.70 42.00 47.00 10

Annual Average2.19 μg/m³ 4.68 μg/m³ 45 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

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30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 3.47 3.64 4.66 5.34 3.76 4.46 4.04 2.34 2.11 2.19 50

NOX 9.96 17.27 19.01 14.63 9.49 10.03 7.46 4.5 4.45 4.68 40

RSPM 30.97 57.25 42.51 39.71 33.82 47 45 39 45 45 60

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11.2.2 Monitoring Location : KMML, Chavara, Kollam, Station code ; 620 Type : Industrial

Latitude : 090 00.189 N

Longitude : 760 53.347 E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 285

Kerala State Pollution Control Board

11 .2. 2 KMML, Chavara Category: Industrial

KMML-CHAVARA-620Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.89 0.36 2.40 3.28 10 6.15 0.69 5.25 7.08 10 44 3 40 49 10

Feb 2.81 0.34 2.40 3.45 10 5.65 0.60 4.50 6.30 10 44 2 40 47 10

Mar 3.05 0.26 2.88 3.53 10 6.25 0.26 6.03 6.90 10 46 3 41 50 10

Apr 3.09 0.23 2.90 3.50 7 6.30 0.36 6.10 7.10 7 46 1 45 48 7

May 3.03 0.33 2.40 3.50 9 6.14 0.30 5.40 6.40 9 46 2 44 50 9

Jun 3.16 0.49 2.40 4.10 9 6.40 0.59 5.40 7.19 9 45 3 42 51 9

Jul 4.11 0.50 3.50 4.90 10 7.18 0.81 6.10 8.90 10 45 1 43 47 10

Aug 3.47 0.47 2.90 4.30 9 6.69 0.76 5.30 7.70 9 48 3 45 55 9

Sep 3.26 0.28 2.50 3.50 8 6.06 0.57 5.30 7.10 8 52 15 45 89 8

Oct 3.45 0.45 2.70 4.10 8 7.60 0.63 6.80 8.50 8 47 1 45 48 8

Nov 3.78 0.37 3.20 4.50 9 7.52 1.23 5.40 9.30 9 46 2 42 49 9

Dec 3.9 0.41 3.3 4.4 10 7.15 0.56 6.2 8.1 10 46 1.6 43 48 10

Annual Average3.33 μg/m³ 6.60 μg/m³ 46μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.08 3.28 4.07 3.22 5.33 5.52 4.07 3.39 3.07 3.33 50

NOX 18.76 22.14 19.62 8.05 11.38 10.12 7.59 6.45 6.23 6.59 40

RSPM 57.88 51.06 39.48 32.18 35.89 44 46 47 49 46 60

0

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60

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2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

Directory 2019

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11.3.1 Monitoring Location : Makkamkunnu, Station code : 619 Type : Residential & Others

Latitude : 90 26’708’’N

Longitude : 760 78’257’’E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

11.3. Pathanamthitta diStrict

Directory 2019 287

Kerala State Pollution Control Board

11.3.1 Makkamkunnu Category: Residential & Others

Makkamkunnu-Stn Code:619Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 10 17.91 0.38 17.30 18.50 10 36 1 34 37 10

Feb 2.00 0.00 2.00 2.00 10 17.64 0.28 17.30 18.00 10 36 1 35 37 10

Mar 2.00 0.00 2.00 2.00 10 17.88 0.31 17.50 18.40 10 34 1 33 36 10

Apr 2.00 0.00 2.00 2.00 8 17.95 0.64 17.10 18.90 8 34 0 33 34 8

May 2.00 0.00 2.00 2.00 8 18.25 0.23 18.00 18.60 8 33 1 31 34 8

Jun 2.00 0.00 2.00 2.00 9 15.70 1.55 14.00 18.00 9 32 1 30 33 9

Jul 2.00 0.00 2.00 2.00 10 16.45 1.18 14.90 18.00 10 32 1 31 33 10

Aug 2.00 0.00 2.00 2.00 9 16.29 1.08 15.20 18.00 9 32 1 31 33 9

Sep 2.00 0.00 2.00 2.00 8 16.49 0.77 15.50 18.00 8 33 1 32 34 8

Oct 2.00 0.00 2.00 2.00 8 15.45 1.33 14.10 18.00 8 34 1 32 35 8

Nov 2.00 0.00 2.00 2.00 8 16.51 0.90 15.50 18.00 8 33 1 32 34 8

Dec 2.00 0.00 2.00 2.00 10 15.96 1.59 14.1 18 10 33 1 32 35 10

Annual Average2.00 μg/m³ 16.87 μg/m³ 34 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2 2 2 2.00 2.00 2.00 2 2 2.00 2.00 50

NOX 13.44 13.13 15.02 13.38 12.36 13.68 14.88 15.94 15.39 16.87 40

RSPM 27.25 22.2 23.33 23.33 22.2 24 26 28 32 34 60

0

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50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

Directory 2019

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288

288

11.3.2 Monitoring Location : Thiruvalla, Station code : Nil Type : Residential & Others

Latitude : 90 38’345’’N

Longitude : 76057’ 406’’E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 289

Kerala State Pollution Control Board

11.3.2 Thiruvalla Category: Residential & Others

Thiruvalla-Stn Code:NilAmbient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 0 0 0

Feb 0 0 0

Mar 2.00 0.00 2.00 2.00 7 17.56 0.28 17.30 18.00 7 35 1 34 35 7

Apr 2.00 0.00 2.00 2.00 8 17.74 0.21 17.40 18.00 8 33 1 32 35 8

May 2.00 0.00 2.00 2.00 8 18.84 0.27 18.40 19.20 8 38 1 36 40 8

Jun 2.00 0.00 2.00 2.00 9 16.14 0.92 14.30 17.00 9 34 1 32 35 9

Jul 2.00 0.00 2.00 2.00 10 16.97 0.76 15.90 18.10 10 34 1 32 35 10

Aug 2.00 0.00 2.00 2.00 9 16.81 0.59 15.90 17.90 9 35 1 32 36 9

Sep 2.00 0.00 2.00 2.00 8 16.36 0.43 15.80 16.80 8 35 1 32 36 8

Oct 2.00 0.00 2.00 2.00 8 16.20 0.73 15.10 17.10 8 35 1 32 37 8

Nov 2.00 0.00 2.00 2.00 9 16.31 0.73 15.00 17.00 9 36 2 32 39 9

Dec 2.00 0.00 2.00 2.00 10 16.13 0.47 15.2 16.7 10 35 1 32 37 10

Annual Average2.00 μg/m³ 16.91 μg/m³ 35 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Directory 2019

Kerala State Pollution Control Board

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290

11.4.1. Monitoring Location : William goodacre, Pathirapally, Station code : 1002 Type : Commercial

Latitude : 090 49’865’’ N

Longitude : 76032’838’’E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

11.4 aLaPPuzha diStrict

Directory 2019 291

Kerala State Pollution Control Board

11.4.1. WILLIAM GOODACRE Category: Commercial

William Goodacre-Stn Code:1002Ambient Air Quality Data - 2019

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 64 11 37 74 10

Feb 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 67 6 59 77 10

Mar 2.00 0.00 2.00 2.00 5 4.50 0.00 4.50 4.50 5 74 6 69 84 5

Apr

May 2.37 0.61 2.00 3.70 9 6.67 0.64 5.90 7.90 9 64 8 50 75 9

Jun 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 64 14 47 84 9

Jul 2.51 1.13 2.00 5.30 10 5.28 1.20 4.50 8.00 10 55 9 41 64 10

Aug 2.58 1.63 2.00 6.60 9 5.51 1.78 4.50 10.00 9 46 3 40 49 9

Sep 2.00 0.00 2.00 2.00 8 5.31 1.47 4.50 8.70 8 49 2 47 52 8

Oct 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 45 3 40 49 8

Nov 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 45 2 40 48 8

Dec 2.00 0.00 2.00 2.00 10 5.23 1.27 4.50 8.40 10 52 5 40 58 10

Annual Average2.13 μg/m³ 5.00 μg/m³ 57 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2 2 2 2 2 2 2 2 2 2.18 50

NOX 4.6 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 5.19 40

RSPM 39.64 39.5 45.27 47.24 44.16 43 43 52 45 53 60

0

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20

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40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

Directory 2019

Kerala State Pollution Control Board

292

292

11.4.2. Monitoring Location : Thondamkulangara, Station code 618 Type : Residential

Latitude : 090 50’650’’ N

Longitude : 760 34’ 302’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 293

Kerala State Pollution Control Board

11.4.2. Thondamkulangara Category: Residential

District Office -Alappuzha-Stn Code:618Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 53 17 23 75 10

Feb 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 62 7 51 75 10

Mar 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 61 13 39 84 10

Apr 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 57 10 48 74 8

May 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 53 14 32 73 9

Jun 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 43 13 24 58 9

Jul 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 40 9 28 55 9

Aug 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 45 3 39 49 9

Sep 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 42 2 40 45 8

Oct 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 40 3 35 45 8

Nov 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 40 2 37 43 8

Dec 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 43 2 39 46 10

Annual Average2.00 μg/m³ 4.50 μg/m³ 48 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2 2 2 2 2 2 2 2 2 2 50

NOX 4.6 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 40

RSPM 39.64 39.5 45.27 47.24 44.16 43 43 52 45 48 60

0

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40

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60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

Directory 2019

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11..5. 1. Monitoring Location : Nagampadom, Station code : 187 Type : Residential & Others

Latitude : 090 59’456’’ N

Longitude : 760 51’972’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

11.5 kottayam diStrict

Directory 2019 295

Kerala State Pollution Control Board

11.5.1. Nagampadom Category: Residential & Others

Nagampadam-Stn Code:187Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.70 0.00 2.70 2.70 10 12.22 0.11 12.00 12.40 10 41 5 36 50 10

Feb 2.63 0.15 2.30 2.70 10 12.28 0.12 12.10 12.50 10 42 4 35 47 10

Mar 2.99 0.11 2.70 3.10 10 12.92 0.21 12.60 13.20 10 46 2 41 50 10

Apr 2.73 0.22 2.30 3.00 8 12.69 0.16 12.40 12.90 8 42 6 32 49 8

May 2.40 0.32 2.00 2.70 9 12.63 0.30 12.30 13.10 9 45 5 34 50 9

Jun 2.04 0.13 2.00 2.40 9 12.40 0.12 12.20 12.60 9 44 2 41 46 9

Jul 2.08 0.17 2.00 2.40 10 12.37 0.13 12.10 12.50 10 37 4 33 45 10

Aug 2.09 0.18 2.00 2.40 9 12.42 0.07 12.30 12.50 9 34 4 27 41 9

Sep 2.24 0.27 2.00 2.70 8 12.35 0.12 12.20 12.50 8 32 3 28 38 8

Oct 2.19 0.27 2.00 2.70 8 12.25 0.11 12.10 12.40 8 33 4 27 38 8

Nov 2.49 0.24 2.00 2.70 9 12.23 0.09 12.10 12.40 9 45 4 38 52 9

Dec 2.16 0.21 2.00 2.40 10 12.48 0.11 12.30 12.70 10 44 4 39 50 10

Annual Average2.40 µg/m³ 12.44 µg/m³ 40 µg/m³

Limit : 50 µg/m³ , max 40 µg/m³ , max 60 µg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 4.94 4.42 6.17 6.93 6.11 5.24 4.13 4.42 3.16 2.4 50

NOX 14.41 12.31 14.6 18.44 20.92 21.42 15.6 14.19 12.94 12.44 40

RSPM 40.94 43.6 57.05 65.75 56.76 60 50 41 39 40 60

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11.5.2. Monitoring Location : Vadavathoor, station code : 361 Type : Industrial

Latitude : 90 59’719’’ N

Longitude : 760 56’ 399’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 297

Kerala State Pollution Control Board

11.5.2. Vadavathoor Category: Industrial

VADAVATHOOR-Stn Code:361Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 3.13 0.19 3.00 3.40 10 12.78 0.16 12.50 13.00 10 51 4 46 61 10

Feb 3.10 0.23 2.70 3.40 10 12.85 0.18 12.60 13.10 10 49 3 42 54 10

Mar 3.34 0.26 3.00 3.70 10 13.66 0.34 13.10 14.00 10 52 2 48 55 10

Apr 3.21 0.26 3.00 3.70 8 13.59 0.20 13.20 13.80 8 49 4 43 55 8

May 3.26 0.41 2.30 3.80 9 13.24 0.35 12.80 13.80 9 57 5 48 63 9

Jun 2.24 0.31 2.00 2.70 9 12.68 0.16 12.50 13.00 9 48 2 44 51 9

Jul 2.26 0.30 2.00 2.70 10 12.63 0.14 12.40 12.90 10 38 5 34 48 10

Aug 2.33 0.28 2.00 2.70 9 12.76 0.17 12.50 13.00 9 40 4 35 45 9

Sep 2.50 0.25 2.00 2.70 8 12.73 0.18 12.50 13.00 8 39 3 34 44 8

Oct 2.24 0.27 2.00 2.70 8 12.50 0.32 12.10 12.90 8 37 6 29 44 8

Nov 2.61 0.24 2.40 3.10 9 12.56 0.35 12.00 13.00 9 44 5 36 51 9

Dec 2.41 0.26 2.00 2.70 10 12.47 0.29 12.00 12.80 10 48 3 44 52 10

Annual Average2.72 µg/m³ 12.87 µg/m³ 46 µg/m³

Limit : 50 µg/m³ , max 40 µg/m³ , max 60 µg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 4.94 4.42 6.17 6.93 6.11 5.24 4.6 4.85 3.44 2.72 50

NOX 14.41 12.31 14.6 18.44 20.92 21.42 17.51 14.94 13.51 12.87 40

RSPM 40.94 43.6 57.05 65.75 56.76 60 58 59 50 46 60

0

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60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

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11.6.1. Monitoring Location : Thodupuzha (SAMP) Type : Commercial

Latitude : 090 54’12’’ N

Longitude : 760 42’ 39’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

11.6 idukki diStrict

Directory 2019 299

Kerala State Pollution Control Board

11.6.1. Thodupuzha Category: Commercial

Thodupuzha(SAMP)Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 hr Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 50 50 6 41 58 10

Feb 1.60 0.84 0.00 2.00 10 3.60 1.90 0.00 4.50 10 38 9 25 48 10

Mar 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 38 5 28 48 10

Apr 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 40 5 31 50 8

May 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 30 6 21 40 9

Jun 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 39 10 26 58 9

Jul 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 37 6 29 47 9

Aug 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 31 6 24 39 9

Sep 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 34 5 29 45 8

Oct 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 29 5 18 34 8

Nov 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 34 3 28 38 9

Dec 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 33 6 20 39 10

Annual Average2.00 μg/m³ 4.50 μg/m³ 36 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.08 2.64 2 2.00 2.00 2.00 2 2 2 2 50

NOX 12.14 8.15 6.5 4.50 4.50 4.50 4.5 4.5 4.5 4.5 40

RSPM 22.34 16.99 15.23 14.79 16.35 29 35 34 42 36 60

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11.7. 1. Monitoring Location : Methanam (Eloor I), Station code : 149 Type : Commercial

Latitude : 100 07’ 969’’N

Longitude : 760 29’ 676’’E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

11.7 ernakuLam diStrict

Directory 2019 301

Kerala State Pollution Control Board

11.7.1. Eloor - Methanam Category: Commercial

Methanam-Eloor I-Stn Code:149Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 3.00 0.00 3.00 3.00 10 21.26 2.49 17.78 26.37 10 90 20 43 119 10

Feb 3.40 0.52 3.00 4.00 10 20.13 3.38 16.59 28.35 10 83 24 56 144 10

Mar 2.56 0.73 2.00 4.00 9 17.70 5.90 5.72 26.29 9 59 11 43 76 9

Apr 3.00 1.07 2.00 5.00 8 19.64 3.41 15.63 25.00 8 54 10 42 72 8

May 3.22 0.83 2.00 4.00 9 21.12 4.46 15.75 30.66 9 40 4 35 45 9

Jun 2.13 0.28 2.00 2.80 9 18.00 5.00 9.00 24.00 9 34 3 31 40 9

Jul 2.00 0.00 2.00 2.00 9 14.44 2.88 12.00 21.00 9 31 1 30 33 9

Aug 2.11 0.33 2.00 3.00 9 17.67 2.69 12.00 22.00 9 30 2 27 33 9

Sep 2.38 0.52 2.00 3.00 8 17.88 4.02 13.00 24.00 8 31 2 27 33 8

Oct 2.13 0.35 2.00 3.00 8 17.50 2.45 13.00 21.00 8 30 4 27 37 8

Nov 2.22 0.67 2.00 4.00 9 16.89 2.98 10.00 20.00 9 35 5 27 42 9

Dec 2.18 0.40 2.00 3.00 11 22.18 4.17 14.00 27.00 11 51 10 39 69 11

Annual Average2.53 18.70 μg/m³ 47 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.14 2.24 2.59 2.40 2.00 2.00 2 2 2.21 2.53 50

NOX 5.69 5.04 4.65 4.58 10.46 20.1 37.45 29.43 23.17 18.7 40

RSPM 29.38 16.73 53.71 75.20 52.43 35 49 46 60 47 60

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70

80

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

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11.7.2. Monitoring Location : TCC (Eloor II) station code : 29 Type : Industrial

Latitude : 100 07’435’’N

Longitude : 76030’ 394’’E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 303

Kerala State Pollution Control Board

11.7. 2. Eloor - TCC Category: Industrial

TCC-Eloor II-Stn code:29Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 4.00 0.00 4.00 4.00 4 28.51 2.41 25.91 30.99 4 101 21 78 127 4

Feb 3.70 0.48 3.00 4.00 10 21.96 2.22 18.66 25.86 10 72 9 58 83 10

Mar 2.90 1.10 2.00 5.00 10 26.31 22.98 10.06 42.56 10 59 11 42 75 10

Apr 3.50 0.76 3.00 5.00 8 19.59 2.88 14.29 23.41 8 53 8 42 65 8

May 3.56 0.53 3.00 4.00 9 26.53 3.69 21.89 32.12 9 45 5 39 56 9

Jun 2.66 0.57 2.00 3.50 9 22.81 3.80 16.93 27.98 9 36 3 32 42 9

Jul 2.54 0.36 2.00 3.20 9 21.20 3.49 14.40 25.20 9 34 1 32 36 9

Aug 2.00 0.00 2.00 2.00 9 23.89 1.54 22.00 27.00 9 37 3 33 43 9

Sep 2.59 0.48 2.00 3.30 7 20.71 4.86 16.00 30.00 7 36 3 32 41 7

Oct 2.25 0.46 2.00 3.00 8 19.38 3.02 16.00 24.00 8 38 7 32 48 8

Nov 2.50 0.90 2.00 4.00 9 19.9 3.9 14.0 26.0 9 44 6 36 53 9

Dec 3.55 0.93 2.00 5.00 11 28.73 3.82 21.00 33.00 11 66 11 48 83 11

Annual Average2.98 μg/m³ 23.29 μg/m³ 52 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

80

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.22 2.55 2.9 2.34 2.00 2.00 2 2 2.63 2.98 50

NOX 5.75 5.18 4.96 4.57 11.66 21.19 38.24 31.97 28.08 23.29 40

RSPM 29.36 18.3 69.49 70.34 55.01 45 54 56 72 52 60

Directory 2019

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304

11 .7.3. Monitoring Location : Near South Overbridge, Station code : 338

Type : Commercial

Latitude : 090 96’518’’ N

Longitude : 76029’203’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM

Directory 2019 305

Kerala State Pollution Control Board

11.7.3. South Over bridge Category: Commercial

ERNAKULAM SOUTH OVER BRIDGE-Stn Code:338Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 9 16.64 9.41 4.50 32.40 9 69 16 37 85 9

Feb 2.00 0.00 2.00 2.00 10 16.90 7.80 5.50 30.60 10 67 14 48 91 10

Mar 2.00 0.00 2.00 2.00 9 10.53 2.85 7.20 14.80 9 49 17 26 75 9

Apr 2.00 0.00 2.00 2.00 6 10.58 4.78 4.50 16.80 6 33 8 27 46 6

May 2.00 0.00 2.00 2.00 7 8.47 4.13 4.50 15.60 7 33 10 20 52 7

Jun

Jul

Aug

Sep

Oct 2.00 0.00 2.00 2.00 4 5.45 1.37 4.50 7.40 4 34 9 22 42 4

Nov 2.00 0.00 2.00 2.00 10 17.33 7.61 5.70 31.20 10 44 7 38 56 10

Dec 2.00 0.00 2.00 2.00 10 13.80 5.58 6.90 26.30 10 55 13 26 74 10

Annual Average2.00 μg/m³ 12.46 μg/m³ 48 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 3.71 3.59 3.62 2.46 2.60 2.75 2.23 2.42 2.72 2.00 50

NOX 15.68 17.2 15.25 7.04 7.44 9.06 12.27 12.52 1269 12.46 40

RSPM 36 53 73 84 71 46 57 49 53 48 60

0

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20

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40

50

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70

80

90

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

Directory 2019

Kerala State Pollution Control Board

306

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11.7.4. Monitoring Location : Vyttila, Station code : 562 (544) Type : Residential, Rural & Others

Latitude : 90 95’823’’ N

Longitude : 760 32’ 522’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 307

Kerala State Pollution Control Board

11.7.4. Vyttila Category: Residential, Rural& Others

VYTTILA-Stn code:562Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 9 16.30 9.20 5.90 33.20 9 74 14 44 89 9

Feb 2.00 0.00 2.00 2.00 10 17.62 7.37 6.30 28.40 10 74 39 48 181 10

Mar 2.00 0.00 2.00 2.00 10 11.03 3.61 6.70 18.60 10 45 13 21 65 10

Apr 2.00 0.00 2.00 2.00 6 9.80 2.82 5.60 13.60 6 34 7 25 42 6

May 2.00 0.00 2.00 2.00 9 11.50 4.30 5.30 16.90 9 30 9 18 45 9

Jun 2.00 0.00 2.00 2.00 9 7.30 2.10 5.30 11.10 9 21 5 12 26 9

Jul 2.00 0.00 2.00 2.00 9 10.56 5.17 4.50 22.10 9 23 8 11 33 9

Aug 2.00 0.00 2.00 2.00 8 9.48 4.95 5.30 17.50 8 22 7 16 37 8

Sep 2.00 0.00 2.00 2.00 8 10.80 4.20 4.50 15.80 8 24 10 13 45 8

Oct 2.00 0.00 2.00 2.00 7 8.86 1.80 5.30 10.50 7 33 14 18 54 7

Nov 2.00 0.00 2.00 2.00 10 15.90 8.41 5.90 30.60 10 53 10 34 69 10

Dec 2.00 0.00 2.00 2.00 10 14.70 3.60 9.90 19.60 10 63 11 46 82 10

Annual Average2.00 μg/m³ 11.99 μg/m³ 41 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 4.47 3.9 3.49 2.47 3.00 3.09 2.3 2.71 3.22 2.00 50

NOX 13.69 15.31 11.9 8.54 8.74 9.43 19.23 19.55 13.61 11.99 40

RSPM 41 47 60 43 66 41 52 50 51 41 60

Directory 2019

Kerala State Pollution Control Board

308

308

11.7.5. Monitoring Location : Irumpanam, Station code : 30 Type : Industrial

Latitude : 90 98’ 792’’ N

Longitude : 760 35’ 068’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 309

Kerala State Pollution Control Board

11.7.5. Irumpanam Category: Industrial

IRUMPANAM-Stn Code:30Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 9 15.70 6.60 5.70 26.10 9 82 23 39 118 9

Feb 2.00 0.00 2.00 2.00 10 16.10 6.40 6.70 27.40 10 68 9 55 82 10

Mar 2.00 0.00 2.00 2.00 10 10.10 4.10 5.40 18.60 10 54 15 39 80 10

Apr 2.00 0.00 2.00 2.00 6 9.10 3.90 4.50 15.20 6 36 5 28 40 6

May 2.20 0.40 2.00 3.20 8 8.10 3.30 4.50 13.70 8 28 7 17 37 8

Jun 2.00 0.00 2.00 2.00 9 6.60 3.10 4.50 14.50 9 24 4 15 29 9

Jul 2.00 0.00 2.00 2.00 9 8.80 3.30 4.50 14.60 9 23 10 12 49 9

Aug 2.00 0.00 2.00 2.00 9 6.40 1.70 4.50 10.30 9 23 7 12 39 9

Sep 2.00 0.00 2.00 2.00 8 7.80 2.70 4.50 12.80 8 27 9 18 43 8

Oct 2.00 0.00 2.00 2.00 7 11.40 4.20 6.30 17.10 7 28 7 18 36 7

Nov 2.00 0.00 2.00 2.00 10 13.88 7.27 4.50 28.50 10 46 6 37 56 10

Dec 2.00 0.00 2.00 2.00 10 18.60 7.10 10.80 35.00 10 55 9 41 69 10

Annual Average2.02 μg/m³ 11.05 μg/m³ 41 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 4.06 3.16 3.45 2.39 2.73 2.66 2.28 2.44 3.19 2.02 50

NOX 11.1 12.04 10.45 4.96 5.03 5.98 13.14 13.79 10.67 11.05 40

RSPM 37.71 37.4 113.55 104.30 106.64 25 33 54 51 41 60

0

20

40

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100

120

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

Directory 2019

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310

310

11.7.6. Monitoring Location : Kalamassery, Station code : 346 (546) Type : Industrial

Latitude : 100 05’021’’ N

Longitude : 760 31’ 327’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 311

Kerala State Pollution Control Board

11.7.6. Kalamassery Category: Industrial

KALAMASSERY-Stn Code:346 (546)Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 7 12.00 7.10 4.50 23.30 7 37 19 16 64 7

Feb 2.00 0.00 2.00 2.00 10 13.10 4.30 8.60 21.80 10 83 17 63 120 10

Mar 2.00 0.00 2.00 2.00 10 8.00 3.50 4.50 15.40 10 58 17 38 86 10

Apr 2.00 0.00 2.00 2.00 6 8.10 1.80 5.70 10.90 6 45 19 29 76 6

May 2.00 0.00 2.00 2.00 9 8.20 3.40 4.50 15.30 9 45 12 30 71 9

Jun 2.20 0.40 2.00 3.10 9 7.60 3.70 4.50 15.60 9 37 9 17 50 9

Jul 2.00 0.00 2.00 2.00 9 8.20 2.30 4.50 11.90 9 38 8 28 50 9

Aug 2.00 0.00 2.00 2.00 8 9.40 4.60 4.50 17.40 8 28 7 17 37 8

Sep 2.00 0.00 2.00 2.00 7 10.50 4.30 4.50 15.60 7 40 12 24 62 7

Oct 2.00 0.00 2.00 2.00 7 8.70 4.00 4.50 16.40 7 41 12 29 61 7

Nov 2.00 0.00 2.00 2.00 10 12.90 8.30 4.50 31.00 10 59 12 39 77 10

Dec 2.00 0.00 2.00 2.00 12 12.90 3.50 7.10 17.80 12 61 11 35 74 12

Annual Average2.02 μg/m³ 9.97 μg/m³ 48 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 5.67 3.8 3.34 2.46 2.63 2.94 2.18 2.43 3.07 2.02 50

NOX 17.04 15.2 10.85 7.14 7.30 7.92 11.01 9.21 10.55 9.97 40

RSPM 45.93 58.6 63.32 66.32 47.02 43 57 49 61 48 60

Directory 2019

Kerala State Pollution Control Board

312

312

11.7.7. Monitoring Location : M.G. Road, Station code : 147(545) Type : Commercial

Latitude : 090 96’290’’ N

Longitude : 76028’591’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 313

Kerala State Pollution Control Board

11.7.7. MG Road Category: Commercial

M G ROAD-Stn Code:147 (545)Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 9 16.20 6.30 8.30 26.20 9 62 21 26 90 9

Feb 2.00 0.00 2.00 2.00 10 16.63 8.34 5.30 30.80 10 52 8 36 62 10

Mar 2.00 0.00 2.00 2.00 9 11.13 5.99 4.50 23.90 9 43 15 16 67 9

Apr 2.00 0.00 2.00 2.00 6 11.88 3.53 8.60 17.10 6 38 6 31 47 6

May 2.00 0.00 2.00 2.00 9 8.18 3.32 4.50 14.90 9 41 12 21 58 9

Jun 2.04 0.13 2.00 2.40 9 7.84 3.87 4.50 14.40 9 30 9 18 42 9

Jul 2.00 0.00 2.00 2.00 9 9.18 4.01 4.50 17.10 9 26 9 15 39 9

Aug 2.00 0.00 2.00 2.00 9 5.77 1.01 4.50 6.80 9 23 5 18 34 9

Sep 2.00 0.00 2.00 2.00 8 10.31 5.15 4.50 18.50 8 24 8 16 38 8

Oct 2.00 0.00 2.00 2.00 7 17.97 4.02 12.80 23.20 7 26 7 18 35 7

Nov 2.00 0.00 2.00 2.00 10 12.73 5.31 5.60 20.00 10 45 10 32 58 10

Dec 2.00 0.00 2.00 2.00 10 14.46 3.06 10.80 22.20 10 58 15 29 85 10

Annual Average2.00 µg/m³ 11.86 µg/m³ 39 µg/m³

Limit : 50 µg/m³ , max 40 µg/m³ , max 60 µg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 4.15 4.27 3.8 2.36 2.86 3.09 2.21 2.55 3.12 2 50

NOX 13.09 19.3 15.02 5.83 7.51 6.51 11.77 12.31 13.62 11.86 40

RSPM 34.4 39.9 66.55 74.50 74.39 48 47 52 53 39 60

0

10

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30

40

50

60

70

80

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

Directory 2019

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11.7.8. Monitoring Location : Perumbavoor (Kuttippadam), Station code : 999 Type : Industrial

Latitude : 100 09’322’’ N

Longitude : 760 45’950’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 315

Kerala State Pollution Control Board

11.7.8. Perumbavoor (Kuttippadam) Category: Industrial

Perumbavoor (Kuttippadam)-Stn Code: 999Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 3.46 0.52 2.60 4.20 10 21.22 1.84 18.80 25.20 10 98 16 66 117 10

Feb 2.86 0.50 2.00 3.60 9 18.18 2.56 13.60 21.80 9 82 25 49 122 9

Mar 3.42 1.47 2.00 5.90 10 17.44 5.79 9.50 26.40 10 74 27 40 117 10

Apr 5.24 3.31 2.00 11.40 8 11.23 3.18 6.40 16.20 8 63 8 49 73 8

May 3.30 1.83 2.00 6.90 9 9.52 2.38 5.60 13.30 9 53 11 39 73 9

Jun 2.42 0.48 2.00 3.30 9 4.50 7.10 4.50 16.40 9 59 15 45 92 9

Jul 4.70 1.39 3.20 7.30 10 8.70 1.86 6.00 11.40 10 65 20 33 98 10

Aug 3.06 1.57 2.00 6.50 7 11.46 4.36 8.00 18.00 7 51 18 29 78 7

Sep 4.40 2.02 2.00 7.30 8 12.48 2.66 7.90 16.80 8 68 20 47 102 8

Oct 6.76 4.28 2.00 12.50 8 12.00 5.06 6.70 20.10 8 56 18 33 80 8

Nov 6.60 2.20 2.80 9.70 9 13.86 1.88 10.30 15.80 9 80 13 62 103 9

Dec 3.55 2.16 2.00 8.90 10 14.16 3.23 9.90 18.00 10 91 15 75 112 10

Annual Average4.15 μg/m³ 12.90 μg/m³ 70 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2014-2019

0

10

20

30

40

50

60

70

80

2014 2015 2016 2017 2018 2019 LIMIT

Series1

Series2

Series3

2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.89 3.00 2.16 2.22 2.42 4.15 50

NOX 7.78 7.72 15.35 15.48 15.2 12.9 40

RSPM 51.11 45 61 52 57 70 60

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316

11.8. thriSSur diStrict

11.8.1Monitoring Location : Poonkunnam, Thrissur, Station code : 624 Type : Residential & Others

Latitude : 100 53.43 N Longitude : 760 21.557 E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 317

Kerala State Pollution Control Board

11.8.1. Poonkunnam Category: Residential & Others

Poomkunnam-Stn code:624Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

c Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 3.76 2.30 2.00 7.20 10 11.06 5.56 4.50 20.20 10 41 7 34 55 10

Feb 2.00 0.00 2.00 2.00 9 5.77 2.29 4.50 10.30 9 46 11 36 70 9

Mar 2.14 0.43 2.00 3.30 9 5.37 1.31 4.50 7.40 9 44 5 34 50 9

Apr 2.16 0.46 2.00 3.30 8 5.18 1.25 4.50 7.40 8 43 8 35 60 8

May 3.40 2.61 2.00 8.00 5 6.08 3.53 4.50 12.40 5 42 5 39 51 5

Jun

Jul

Aug 8.64 3.57 3.80 11.80 5 6.60 2.13 4.50 9.50 5 35 5 27 40 5

Sep 2.23 0.48 2.00 3.50 10 5.44 1.26 4.50 7.50 10 38 2 34 40 10

Oct 2.79 1.07 2.00 4.70 15 4.62 0.32 4.50 5.50 15 35 3 29 39 15

Nov 2.65 0.85 2.00 4.50 15 4.62 0.32 4.50 5.40 15 34 1 33 36 15

Dec 2.58 0.95 2.00 5.50 18 4.50 0.00 4.50 4.50 18 36 1 34 38 18

Annual Average3.24 μg/m³ 5.92 μg/m³ 39 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2 2.2 2 2.00 2.00 2.00 2.01 2.01 2.77 3.24 50

NOX 6.75 13.12 14.54 10.80 12.64 8.01 5.45 5.12 9.26 5.92 40

RSPM 24.27 32.1 73.09 46.74 55.01 50 55 58 40 39 60

0

10

20

30

40

50

60

70

80

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

Directory 2019

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318

11.8. 2. Monitoring Location : Peringandoor, Thrissur, Station code : 1000 Type : Industrial

Latitude : 100 53’ 42” N Longitude : 760 21’ 5” E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 319

Kerala State Pollution Control Board

11.8.2 Peringandoor Category: Industrial

PERINGANDOOR -Stn code:1000Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan

Feb

Mar 2.23 0.51 2.00 3.50 10 4.84 0.79 4.50 6.90 10 45 7 33 55 10

Apr 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 42 5 37 52 8

May 2.40 0.55 2.00 3.00 5 6.08 3.53 4.50 12.40 5 42 5 39 51 5

Jun 2.97 1.67 2.00 4.90 3 5.30 1.39 4.50 6.90 9 38 2 35 39 9

Jul 2.52 0.78 2.00 3.90 11 5.71 2.09 4.50 11.40 11 39 3 34 43 11

Aug 3.99 3.12 2.00 9.60 9 5.18 1.38 4.50 8.20 9 30 6 22 40 9

Sep 3.34 2.31 2.00 8.70 8 5.45 1.80 4.50 9.00 8 37 3 34 42 8

Oct 2.87 1.50 2.00 4.60 3 4.77 0.46 4.50 5.30 3 35 1 34 36 3

Nov 2.10 0.26 2.00 2.70 7 4.74 0.42 4.50 5.40 7 34 1 33 35 7

Dec 2.49 1.04 2.00 4.60 10 4.67 0.36 4.50 5.40 10 36 1 34 37 10

Annual Average2.69 μg/m³ 5.12 μg/m³ 38 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Directory 2019

Kerala State Pollution Control Board

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320

11.9 . PaLakkad diStrict

11.9.1Monitoring Location : Carborandum Universal/SEPR Refractories, Kanjikode, Station code : 311

Type : Industrial

Latitude : 100 79’312’’ N Longitude : 760 74’ 148’’ E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 321

Kerala State Pollution Control Board

11.9.1. Kanjikode Category: Industrial

Kanjikkode-Stn Code:311Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 10 8.89 0.68 7.50 9.60 10 75 26 52 144 10

Feb 2.00 0.00 2.00 2.00 10 7.42 1.22 5.30 9.20 10 62 14 41 84 10

Mar 2.00 0.00 2.00 2.00 10 8.10 1.13 6.00 9.20 10 60 14 36 87 10

Apr 2.00 0.00 2.00 2.00 8 6.91 1.32 4.50 9.10 8 53 10 43 74 8

May 2.00 0.00 2.00 2.00 9 4.94 0.90 4.50 6.90 9 38 7 30 49 9

Jun 2.00 0.00 2.00 2.00 9 6.50 1.42 4.50 8.60 9 26 9 17 48 9

Jul 2.00 0.00 2.00 2.00 10 6.80 1.77 4.50 8.70 10 21 5 15 31 10

Aug 2.00 0.00 2.00 2.00 9 6.30 1.50 4.50 8.50 9 24 10 11 41 9

Sep 2.00 0.00 2.00 2.00 6 6.12 1.03 4.50 7.00 6 26 11 12 49 6

Oct 2.00 0.00 2.00 2.00 7 6.34 1.11 4.50 7.70 7 32 14 14 50 7

Nov 2.17 0.40 2.00 3.20 9 9.72 7.87 4.50 4.50 9 70 23 39 103 9

Dec 4.07 3.11 2.00 9.60 10 7.61 6.65 4.50 25.40 10 16 79 62 111 10

Annual Average2.19 μg/m³ 7.14 μg/m³ 42 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 3.22 2.99 3.13 2.70 2.00 2.00 2 2 2.54 2.19 50

NOX 6.17 8.86 6.98 4.74 6.41 7.42 8.56 8.96 8.61 7.14 40

RSPM 32.39 22.95 39.33 39.26 40.19 47 41 44 43 42 60

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322

11.10. maLaPPuram diStrict

11.10.1 Monitoring Location : Kakkanchery, near KINFRA Station code : 623 Type : Industrial

Latitude : 110 15’ 385” N

Longitude : 750 89’ 287” E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 323

Kerala State Pollution Control Board

11.10.1. Kakkancherry Category: Industrial

Kakkancherry-Stn Code:623Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 10 14.07 2.79 9.60 19.00 10 35 12 23 56 10

Feb 2.00 0.00 2.00 2.00 10 15.76 2.16 13.50 19.80 10 31 4 24 37 10

Mar 2.00 0.00 2.00 2.00 10 14.95 2.78 10.20 19.40 10 43 17 25 70 10

Apr 2.00 0.00 2.00 2.00 8 15.53 1.08 14.50 17.20 8 38 6 28 49 8

May 2.00 0.00 2.00 2.00 9 16.49 1.39 13.90 18.30 9 39 5 32 47 9

Jun 2.00 0.00 2.00 2.00 9 15.13 2.29 11.30 18.40 9 43 13 22 67 9

Jul 2.00 0.00 2.00 2.00 10 13.56 2.61 9.30 16.90 10 31 5 25 38 10

Aug 2.00 0.00 2.00 2.00 9 14.94 1.99 10.50 16.90 9 27 1 25 29 9

Sep 2.00 0.00 2.00 2.00 6 14.46 2.19 10.60 17.20 6 27 3 22 32 6

Oct 2.00 0.00 2.00 2.00 7 14.74 1.13 12.80 15.90 7 32 5 26 40 7

Nov 2.00 0.00 2.00 2.00 9 13.61 3.36 8.70 20.60 9 38 10 21 47 9

Dec 2.00 0.00 2.00 2.00 10 16.21 2.54 12.20 20.00 10 31 4 22 35 10

Annual Average2.00 μg/m³ 14.95 μg/m³ 35 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2 2 2 2.00 2.00 2.00 2 2 2 2 50

NOX 4.53 5.9 4.64 4.87 11.50 13.46 16.57 21.24 17.11 14.95 40

RSPM 30.12 32.2 36.72 37.46 43.54 43 37 32 31 35 60

Directory 2019

Kerala State Pollution Control Board

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324

11.11 . kozhikode diStrict

11.11.1Monitoring Location : Kozhikode city, Station code : 360 Type : Commercial

Latitude : 110 25; 06”1 N

Longitude : 750 78’ 30” E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 325

Kerala State Pollution Control Board

11.11.1. Kozhikode city Category: Commercial

KOZHIKKODE CITY-Stn Code:360Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 9 4.78 0.83 4.50 7.00 9 33 6 25 44 9

Feb 2.00 0.00 2.00 2.00 8 5.93 1.55 4.50 7.80 8 68 18 39 100 8

Mar 2.00 0.00 2.00 2.00 10 4.84 0.44 4.50 5.40 10 50 9 34 57 10

Apr 2.00 0.00 2.00 2.00 8 4.83 0.66 4.50 6.30 8 45 6 37 55 8

May 2.00 0.00 2.00 2.00 9 5.13 0.88 4.50 7.00 9 33 6 25 44 9

Jun 2.00 0.00 2.00 2.00 8 6.18 1.59 4.50 8.70 8 41 12 21 56 8

Jul 2.00 0.00 2.00 2.00 10 6.49 2.47 4.50 12.80 10 34 15 14 58 10

Aug 2.00 0.00 2.00 2.00 7 5.57 1.14 4.50 7.40 7 31 14 17 55 7

Sep 2.00 0.00 2.00 2.00 8 5.69 2.27 4.50 10.30 8 27 8 19 40 8

Oct 2.00 0.00 2.00 2.00 7 5.11 0.99 4.50 7.20 7 27 17 14 62 7

Nov 2.00 0.00 2.00 2.00 7 5.69 1.98 4.50 9.90 7 23 7 14 32 7

Dec 2.00 0.00 2.00 2.00 1 4.50 0.00 4.50 4.50 1 16 3 11 21 1

Annual Average2.00 μg/m³ 5.40 μg/m³ 36 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 3.59 2.6 2 2.00 2.00 2.00 2 2 2 2 50

NOX 8.49 8.3 8.52 19.41 22.28 24.1 17.87 18.58 10.99 5.4 40

RSPM 44.56 35.59 56.46 51.33 51.37 56 51 45 62 36 60

Directory 2019

Kerala State Pollution Control Board

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326

11.11.2 Monitoring Location : Nallalam, Station code : 359 Type : Industrial

Latitude : 110 20’ 60” N

Longitude : 750 81’ 08” E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 327

Kerala State Pollution Control Board

11.11.2 Nallalam Category: Industrial

NALLALAM,Kozhikkode-Stn code:359Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 7 5.94 1.29 4.50 7.50 7 89 18 68 110 7

Feb 2.00 0.00 2.00 2.00 8 6.26 2.56 4.50 10.30 8 60 14 39 85 8

Mar 2.00 0.00 2.00 2.00 9 4.59 0.27 4.50 5.30 9 39 16 17 62 9

Apr 0 0 0

May 0 0 0

Jun 0 0 0

Jul 0 0 0

Aug 2.00 0.00 2.00 2.00 8 4.73 0.42 4.50 5.40 8 18 6 12 28 8

Sep 2.00 0.00 2.00 2.00 8 5.56 2.09 4.50 10.50 8 23 6 15 31 8

Oct 2.00 0.00 2.00 2.00 7 4.69 0.49 4.50 5.80 7 23 9 14 40 7

Nov 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 41 16 24 73 9

Dec 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 60 15 30 78 10

Annual Average2.00 μg/m³ 5.10 μg/m³ 44 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2 2 2 2.00 2.00 2.00 2 2 2 2 50

NOX 9.78 7.46 7.74 13.48 16.22 17.9 17.76 16.77 7.86 5.1 40

RSPM 38.69 56.6 53.78 45.75 40.41 41 50 48 47 44 60

Directory 2019

Kerala State Pollution Control Board

328

328

11.12. wayanad diStrict

11.12.1Monitoring Location : Sulthan Bathery, Station code : 622 Type : Sensitive

Latitude : 110 66’ 561” N

Longitude : 760 26’ 3” E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 329

Kerala State Pollution Control Board

11.12 .1. Sulthan Bathery Category: Sensitive

Sulthanbathery-Stn code:622Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 37 4 27 40 8

Feb 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 37 2 34 41 10

Mar 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 33 1 32 35 10

Apr 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 36 1 35 37 8

May 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 35 1 35 36 9

Jun 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 31 2 28 34 8

Jul 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 20 2 17 22 10

Aug 2.00 0.00 2.00 2.00 7 4.50 0.00 4.50 4.50 7 17 3 14 21 7

Sep 2.00 0.00 2.00 2.00 4 4.50 0.00 4.50 4.50 4 19 1 17 20 4

Oct 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 19 2 16 21 8

Nov 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 24 1 22 26 9

Dec 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 26 2 21 28 10

Annual Average2.00 μg/m³ 4.50 μg/m³ 28 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 20010-2019

0

10

20

30

40

50

60

70

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.07 2.04 2 2.00 2.00 2.00 2 2 2 2 50

NOX 12.32 11.53 7.79 4.50 4.50 4.50 4.57 4.54 4.5 4.5 40

RSPM 45.74 28.5 33.72 42.24 36.00 37 40 43 34 28 60

Directory 2019

Kerala State Pollution Control Board

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330

11.12.2 Monitoring Location : Kalpetta Code 1001 Type : Sensitive

Latitude : 110 60’ 944” N

Longitude : 760 08’ 2” E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 331

Kerala State Pollution Control Board

11.12 .1. Kalpetta Category: Sensitive

Kalpetta -Stn code:1001Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 0 0 0

Feb 0 0 0

Mar 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 35 1 33 37 10

Apr 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 36 1 35 37 8

May 0 0 0

Jun 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 31 2 28 34 8

Jul 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 22 2 19 26 10

Aug 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 18 2 15 21 8

Sep 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 20 2 17 23 8

Oct 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 20 1 17 21 8

Nov 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 24 1 22 26 9

Dec 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 27 1 25 29 10

Annual Average2.00 μg/m³ 4.50 μg/m³ 28 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Directory 2019

Kerala State Pollution Control Board

332

332

11.13. kannur diStrict

11.13.1 Monitoring Location : Kannur (SAMP) Type : Commercial

Latitude : 11° 52’ 35” N

Longitude : 75° 21’ 22” E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 333

Kerala State Pollution Control Board

11.13.1. Kannur Category: Commercial

KANNUR (SAMP)Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 58 13 32 75 9

Feb 2.00 0.00 2.00 2.00 10 8.85 2.51 5.40 11.60 10 50 8 37 60 10

Mar 2.00 0.00 2.00 2.00 10 6.35 1.13 4.50 8.00 10 36 6 30 45 10

Apr 2.01 0.04 2.00 2.10 8 7.56 2.80 4.50 11.40 8 30 14 18 53 8

May 2.29 0.72 2.00 4.18 9 7.81 4.93 4.50 18.30 9 39 18 17 77 9

Jun 2.05 0.16 2.00 2.48 9 6.92 1.67 5.30 9.70 9 33 14 14 57 9

Jul 2.05 0.15 2.00 2.46 10 6.59 1.27 5.29 9.06 10 31 12 11 49 10

Aug 2.00 0.00 2.00 2.00 9 6.92 2.48 4.50 12.37 9 48 25 19 105 9

Sep 2.00 0.00 2.00 2.00 8 8.00 1.28 7.09 8.90 8 31 1 30 31 8

Oct 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 25 8 19 31 8

Nov 2.03 0.10 2.00 2.30 9 7.71 3.52 4.50 13.76 9 26 5 15 30 9

Dec 2.00 0.00 2.00 2.00 10 7.43 1.89 4.50 9.91 10 36 13 18 64 10

Annual Average2.04 μg/m³ 6.93 μg/m³ 37 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

0

10

20

30

40

50

60

70

80

90

100

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

RSPM

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.04 2.2 2.34 3.75 2.82 2.00 2.00 2.00 2.01 2.04 50

NOX 5.72 6.55 7.46 5.05 4.51 4.56 4.53 4.5 6.33 6.93 40

RSPM 38.76 42.46 50.65 35.63 87.46 63 56 64 51 37 60

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334

11.13.2 Monitoring Location : Mangattuparambu (SAMP) Type : Residential, Rural & Others

Latitude : 11°59’00” N

Longitude : 75°21’ 50” E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

Directory 2019 335

Kerala State Pollution Control Board

11.13.2. Kannur, Mangattuparamb Category: Residential, Rural & Others

MANGATTUPARAMBA (SAMP)Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 9 9.42 3.01 4.50 14.10 9 61 10 45 73 9

Feb 2.00 0.00 2.00 2.00 10 7.04 1.99 4.50 10.20 10 56 14 35 80 10

Mar 2.00 0.00 2.00 2.00 10 5.40 1.24 4.50 7.70 10 39 6 31 49 10

Apr 2.00 0.00 2.00 2.00 8 6.43 3.69 4.50 15.30 8 31 12 18 56 8

May 2.34 1.02 2.00 5.07 9 6.78 4.76 4.50 19.00 9 33 9 23 50 9

Jun 2.04 0.11 2.00 2.32 9 4.75 0.51 4.50 5.87 9 25 5 19 31 9

Jul 2.00 0.00 2.00 2.00 10 5.27 2.05 4.50 11.00 10 16 10 6 37 10

Aug 2.15 0.32 2.00 2.90 9 4.88 0.76 4.50 6.40 9 21 10 10 46 9

Sep 2.00 0.00 2.00 2.00 8 4.95 1.27 4.50 8.10 8 20 7 13 29 8

Oct 2.04 0.05 2.00 2.10 8 4.75 0.48 4.50 5.70 8 26 9 16 40 8

Nov 2.00 0.00 2.00 2.00 9 5.21 1.17 4.50 7.70 9 45 12 35 66 9

Dec 2.03 0.09 2.00 2.28 10 6.24 1.11 4.50 7.90 10 64 15 46 92 10

Annual Average2.05 μg/m³ 5.93 μg/m³ 36 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

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2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.09 2.4 2.21 3.47 2.80 2.80 2 2 2.21 2.05 50

NOX 7.32 5.24 6.87 5.25 4.55 4.50 4.53 4.53 5.93 5.93 40

RSPM 35.47 43.4 22.27 77.73 55.14 40 40 63 48 36 60

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11.14. kaSargode diStrict

11.14.1 Monitoring Location : Kasargode (SAMP) Type : Residential, Rural & Others

Latitude : 12019.273 N

Longitude : 750 05.016 E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

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11.14.1. Kasargode Category: Residential, Rural & Others

KasargodeAmbient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 45 9 34 61 10

Feb 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 48 10 32 64 10

Mar 2.00 0.00 2.00 2.00 10 4.75 0.79 4.50 7.00 10 56 9 43 71 10

Apr 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 54 7 45 64 8

May 2.00 0.00 2.00 2.00 10 4.68 0.53 4.50 6.10 10 55 9 44 76 10

Jun 2.10 0.11 2.00 2.30 9 4.74 0.34 4.50 5.40 9 57 6 47 64 9

Jul 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 48 11 28 61 10

Aug 2.00 0.00 2.00 2.00 8 4.60 0.28 4.50 5.30 8 41 7 31 49 8

Sep 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 49 5 43 57 8

Oct 2.00 0.00 2.00 2.00 4 4.50 0.00 4.50 4.50 4 46 11 36 56 4

Nov 2.00 0.00 2.00 2.00 9 4.50 0.00 4.50 4.50 9 40 4 35 49 9

Dec 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 45 6 34 58 10

Annual Average2.01 μg/m³ 4.56 μg/m³ 49 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.25 2.4 2.22 2.00 2.01 2.06 2.02 2.03 2.04 2.01 50

NOX 13.51 12.17 7.09 8.53 5.15 5.48 5.13 4.92 4.67 4.56 40

RSPM 52.62 55.7 43.2 50.98 36.71 31 39 36 42 49 60

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2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2

NOX

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11.14.2 Monitoring Location : Kanhangad (SAMP) Type : Residential, Rural & Others

Latitude : 120 30.414 N

Longitude : 740 59.644 E

Air Parameters monitored : Sulphur Dioxide (SO2), Nitrogen Oxides (NOx), Respirable Suspended Particulate Matter (RSPM)

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11.14.2. Kanhangad Category: Residential, Rural & Others

Kanhangad (SAMP)Ambient Air Quality Data - 2019

Parameter Sulphur dioxide µg/m³ Nitrogen Dioxide µg/m³ Respirable Suspended Particulate matter µg/m³

24 h ave Limit :80 µg/m³ ,max 80 µg/m³ ,max 100 µg/m³ ,max

Mon Mean StDev Minm Maxim n Mean StDev Minm Maxim n Mean StDev Minm Maxim n

Jan 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 40 8 30 55 10

Feb 2.00 0.00 2.00 2.00 10 4.68 0.57 4.50 6.30 10 51 6 44 62 10

Mar 2.00 0.00 2.00 2.00 10 4.80 0.95 4.50 7.50 10 62 8 44 75 10

Apr 2.00 0.00 2.00 2.00 8 4.60 0.30 4.50 5.40 8 60 6 56 74 8

May 2.00 0.00 2.00 2.00 9 4.59 0.27 4.50 5.30 9 53 7 46 68 9

Jun 2.20 0.13 2.10 2.50 9 4.84 0.42 4.50 5.80 9 47 8 36 58 9

Jul 2.00 0.00 2.00 2.00 10 4.50 0.00 4.50 4.50 10 37 7 27 48 10

Aug 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 38 4 34 44 8

Sep 2.00 0.00 2.00 2.00 8 4.50 0.00 4.50 4.50 8 52 7 44 66 8

Oct 2.00 0.00 2.00 2.00 4 4.50 0.00 4.50 4.50 4 45 5 39 50 4

Nov 2.00 0.00 2.00 2.00 9 4.61 0.33 4.50 5.50 9 41 7 28 48 9

Dec 2.00 0.00 2.00 2.00 10 4.60 0.32 4.50 5.50 10 49 9 37 60 10

Annual Average2.02 μg/m³ 4.60 μg/m³ 48 μg/m³

Limit : 50 μg/m³ , max 40 μg/m³ , max 60 μg/m³ ,max

n: number of days monitoring conductedµg/m³ : microgram per cubic metre

Trend Analysis 2010-2019

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

SO2 2.25 2.4 2.13 2.00 2.00 2.05 2.14 2.02 2.06 2.02 50

NOX 11.36 10.24 7.9 8.18 5.39 6.99 5.83 5.31 4.83 4.6 40

RSPM 50.59 49.9 40.78 42.75 37.7 38 44 31 43 48 60

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2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 LIMIT

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GENERAL EVALUATIoN oN AIR QUALITY - 2019

The Board is monitoring ambient air quality at a total of 35 stations in the state under National Ambient Air Quality Monitoring Programme (NAMP) and State Ambient Air Quality Monitoring Programme (SAMP).The parameters monitored are Sulphur dioxide (SO2), Oxides of Nitrogen (NOx), and Respirable Suspended Particulate Matter (RSPM). Measurement of Particulate matter ( PM2.5) started in all stations .

The annual average concentrations of Sulphur dioxide and Oxides of Nitrogen were not exceeded the permissible limit values in any of the monitoring stations during the period from 2010 to 2019. Whereas the annual average of RSPM values (PM10) were exceeded the limit in the monitoring stations located at Kuttipadam(70µg/m³), in Ernakulam district during the year 2019.

Annual Average - Respirable Suspended Particulate Matter -2019

Annual Average Limit Value of RSPM =60µg/m³X axis=StationsY axis= Annual Average RSPM µg/m³

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boaRd’S laboRatoRieS

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The Board has laboratories in all 14 districts. Laboratories are also attached to Environmental Surveillance Centre at Eloor and the district level office at Perumbavoor. The Central Laboratory Complex which is located at Gandhi Nagar, Kadavanthra, Kochi-20 is the pride of Kerala State Pollution Control Board. It functions in the Board’s own building covering a total floor area of 1020 m2. This laboratory has achieved a phenomenal growth in capacity and caliber over the past 35 years upholding quality and credibility all the time. It has six important sections namely (1) Effluent Lab (2) Surface/Ground Water Lab (3) Project Lab (4) Air Lab (5) Biology Lab (6) Microbiology Lab.

It has 3 fully air-conditioned instrument rooms equipped with most modern sophisticated instruments like Atomic Absorption Spectrophotometer with Flame and graphite Furnace and Hydride generation unit, Gas Chromatograph with ECD and NPD, Gas Chromatograph with FID and ATD, High Performance Liquid Chromatograph with UV and Fluorescence detectors, UV-Visible scanning Spectrophotometer, Specific Ion Analyser, CHNS Analyser etc.. Some of the sophisticated equipments available are MilliQ Water System, Microwave solid sample Digester, TCLP Extraction Apparatus etc.

Central laboratory co-ordinates the water and air quality monitoring and analysis of samples at the Board’s District/Regional Laboratories and compiles the results generated. This Laboratory consistently maintain top ranking in the Analytical Quality Control Exercise/Performance evaluation Tests conducted by Central Pollution Control Board. The reports on the performance of the Central Laboratory Ernakulam and the Regional Laboratory Kozhikode in the 29th Proficiency Testing Programme on water analysis, conducted by CPCB during February 2013 are given on page 388 and 389. The laboratory has obtained super excellent grade in proficiency testing in microbiological parameters conducted by CPCB during 2013. Relevant page of the document is given on page 390.

Since last few years, the Central Laboratory has been in the process of implementing the management and technical requirements as per ISO/IEC 17025:2005. Now the laboratory has fulfilled all the requirements, and has successfully passed both the pre assessment and final audit by the National Accreditation Board for Testing and Calibration Laboratories and recommended the laboratory for accreditation for the entire scope of 61 parameters in the discipline of Chemical and Biological testing. Certificate of accreditation is awaited. This achievement will be a big leap in the progress of the laboratory and a milestone in its history

Photographs of some of the sophisticated instruments and their applications in the environmental sample analysis are given below. Atomic Absorption Spectrophotometer with Flame, Graphite Furnace and Hydride generation unit (Make: Perkin Elmer-AAnalyst 700)

Applications:Analysis of Heavy Metals in water, waste water, air particulates, soil, sediment, sludge and hazardous wastes.etc.

12. BOARD’S LABORATORIES

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Gas Chromatograph with Auto sampler, ECD and NPD .( Make:Perkin Elmer–CLARUS 500)

Applications:Analysis of the individual organic compounds present in water, waste water, air and air particulates are determined by GC. Environmentally more significant are Pesticide residues, Chlorophenols, PolyChlorinated Biphenyls (PCBs), Dioxins etc

Gas Chromatograph with ATD and FID (Make: Perkin Elmer–CLARUS-500)

Applications:Analysis of the individual organic compounds present in water, waste water, air and air particulates. Environmentally more significant are VOCs, Phenols, Poly nuclear Aromatic Hydrocarbons(PAHs)etc.

High Performance Liquid Chromatograph (HPLC)(Make: Shimadzu Prominence)

Applications:Determination of Carbamate pesticides, Poly nuclear Aromatic Hydrocarbons (PAHS) etc.

TOC Analyser(Make: Analytic Jena)

Applications: Determination of Total Carbon (TC) and In-organic Carbon(IC)(The difference will give TOC)

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TOX Analyser(Make: EUROGLASS-EDC)

Applications:For the estimation of organic bound Halogens. Screening of large number of samples before specific and complex analysis and for extensive field surveying in case of halogenated compounds pollution.

CHNS Analyser(Make: Eurovector-EA )

Applications:For the determination of Carbon, Nitrogen, Hydrogen and Sulphur content in any sample.

GCMS Analyser Gas Chromatograph- Mass Spectroscopy(with Purge & Trap)

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CENTRAL LABORATORY, KERALA STATE POLLUTION

CONTROL BOARD

has been assessed and accredited in accordance with the standard

ISO/IEC 17025:2017

''General Requirements for the Competence of Testing &

Calibration Laboratories''

for its facilities at

GANDHI NAGAR, KOCHI, ERNAKULAM, KERALA, INDIA

in the field of

TESTING

Certificate Number: TC-8525

Issue Date: 29/05/2019 Valid Until: 28/05/2021

This certificate remains valid for the Scope of Accreditation as specified in the annexure subject to continued

satisfactory compliance to the above standard & the relevant requirements of NABL.(To see the scope of accreditation of this laboratory, you may also visit NABL website www.nabl-india.org)

Signed for and on behalf of NABL

N. Venkateswaran

Chief Executive Officer

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CoNCLUSIoNWater quality management in India is enacted under the Water (Prevention and Control of Pollution) Act 1974 to maintain wholesomeness of aquatic resources and Air (Prevention and Control of Pollution) Act, 1981 to arrest the deterioration in the air quality. Kerala State Pollution Control Board has undertaken the responsibility of documenting surface and ground water quality of water resources and the air quality in the state.

Surface and ground water quality are monitored under the National Water Quality Monitoring Programme( NWMP) and State Water Quality Monitoring Programme (SWMP) and source water monitoring of Rural water supply schemes. Ambient air quality are monitoredin all districts under National Ambient Air Quality Monitoring (NAMP) and State Ambient Air Quality Monitoring (SAMP)programme. Continuous Ambient Air Quality Monitoring Stations (CAAQMS) are functioning at Thiruvananthapuram, Kollam, Ernakulam, Kozhikode and Kannur districts. Water and air quality are assessed as per the CPCB standards.

The water and air quality data generated are beneficial for planning sustainable development in waste management systems by giving due importance to abatement of environmental pollution.

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Annexure INATIoNAL WATER QUALITY MoNIToRING

PRoGRAMME NETWoRK 2019

SL NO.Name of Water Body Station code Name of stations Monitoring frequency Class

RIVER STATIONS 2018 2019

1 Neyyar 1563 Amaravila Monthly C C

2284 Aruvippuram Monthly C D

2 Mamom 2285 Mamom Bridge Monthly C C

3 Ayroor 2286 Ayroor Bridge Monthly C C

4 Karamana 1155 Moonnattumukku Monthly E E

3471 Aruvikkara Monthly B B

5 Ithikkara 1564 Ayoor Monthly B B

2287 Ithikkara Bridge Monthly E Below E

6 Vamanapuram 1442 Vamanapuram Monthly C C

7 Pallickal 2288 Pallickal Monthly B B

8 Achenkovil 1342 Thumpamon Monthly B B

1443 Chennithala Monthly B B

3465 Kallarakadavu Monthly B B

3466 Pandalam Monthly B B

9 Kallada 42 Perumthottamkadavu Monthly B B

10 Pamba 1156 Chengannoor Monthly B C

1341 Thakazhi Monthly B C

1565 Pamba Down Monthly B B

11 Meenachil 1339 Kidangoor Monthly C C

12 Manimala 1340 Kallooppara Monthly B B

1384 Thondara Monthly B C

13 Periyar 17 Eloor Monthly Below E E

18 Kalady Monthly C C

2333 Muppathadam Monthly C C

2336 Purappillikadavu Monthly Below E E

2334 Pathalam Monthly Below E E

2335 Kalamassery Monthly E C

3468 KWA Aluva Monthly C C

1338 SDP Aluva Monthly C C

14 Muvattupuzha 43 Vettikkattumukku Monthly C C

15 Chalakudy 1154 Pulickakadavu Monthly C C

16 Karuvannur 2289 Karuvannur Bridge Monthly B C

17 Puzhakkal 2290 Puzhakkal Bridge Monthly C B

18 Keecheri 2291 Vadakkancherry Monthly B B

19 Bharathapuzha 2331 Kuttipuram Monthly C B

2332 Pattambi Monthly B B

20 Kadalundi 1566 Thiroorangadi Monthly B B

2293 Hajiyarappilly Monthly B A

21 Tirur 2292 Thalakadathur Monthly Below E Below E

22 Chaliyar 3464 Nilambur Monthly C C

20 Koolimadu Monthly C C

21 Chungappilly Monthly Below E E

23 Kabani 1207 Muthankara Monthly Below E B

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24 Bhavani 1208 Elachivazhi Monthly B C

25 Kuttiyadi 1567 Estatemukku Monthly B C

26 Mahe 1568 Valayam Monthly C C

27 Kallai 2294 Kallai Bridge Monthly Below E Below E

28 Korapuzha 2295 Kanayankode Monthly Below E Below E

29 Kuppam 1569 Thaliparambu Monthly Below E Below E

2298 Rayoram Monthly C B

30 Thalassery 2296 Pathipalam Monthly C B

31 Anjarakandy 2297 Meruvamba Monthly C B

2319 Anjarakandy Monthly Below E Below E

32 Ramapuram 2299 Ramapuram bridge Monthly Below E Below E

33 Kavai 2301 Kuttiyolpalam Monthly C C

34 Valapattanam 3473 Parassinikadavu Monthly Below E Below E

35 Neeleswaram 1570 Hosdurg Monthly Below E Below E

2302 Nambiarackal Monthly C B

36 Kariangode 1571 Kakkadavu Monthly C B

37 Chandragiri 1572 Padiyathdukka Monthly C B

38 Mogral 2304 Mogral Bridge Monthly Below E Below E

39 Shiriya 2305 Angadimogaru Monthly C B

40 Uppala 2306 Uppala Bridge Monthly Below E Below E

41 Manjeswaram 2307 Bajarakkara Bridge Monthly C B

42 Peruvamba 2300 Chanthappura Monthly C B

RIVULETS/TRIBUTARIES

1 Kadambrayar 2337 Brahmapuram Monthly C E

2338 Manackakadavu Monthly C E

2 Chithrapuzha 1573 Irumpanam Monthly C E

3 Korayar 2326 Kanjikode Monthly B B

4 Pullur 2303 Pullur Bridge Monthly C C

5 Kalpathy puzha 3460 Kalpathy Monthly C C

6 Maniyankode 3459 Maniyankode Monthly B B

FRESH WATER LAKE STATIONS

1 Vellayani 3470 Vellayani Monthly C E

2 Sasthamkotta 1385 Sasthamkotta Monthly B B

3 Pookode 1580 Pookode Monthly A B

ESTUARINE LAKE STATIONS

1 Akkulam 1383 Oruvathilkotta Monthly C D

2 Ashtamudi 1441 Neendakara Monthly Below E Below E

3 Paravur 1574 Paravur Monthly Below E Below E

4 Punnamada lake 1579 Alappuzha Monthly C C

5 Vembanadu lake 1575 Oil Tanker Jetty Monthly Below E Below E

2312 Pathiramanal Monthly Below E E

6 Kodungallur 1577 Kodungallur Monthly Below E Below E

7 Kayamkulam lake 1578 Kayamkulam Monthly Below E Below E

RESERVOIRES ,PONDS & CANAL STATIONS

1 Pazhassi 2318 Pazhassi Monthly C B

2 Edamalayar 2330 Edamalayar Monthly C B

3 Bhoothathankettu 2329 Bhoothathankettu Monthly C C

4 Malampuzha 2328 Malampuzha Monthly B B

5 Periyar(Thekkady) 1576 Thekkady Monthly B C

6 Karapuzha 3458 Karapuzha Monthly B A

7 Mananchira pond 3462 Mananchira Monthly B B

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8 Padmatheertham pond 2325 Padmatheertham Monthly B E

9 Canoli canal 3461 Canoli Monthly Below E Below E

10 Palakkattuthazham thodu 3469 Palakkattuthazham thodu Monthly E D

11 Unthithode 3467 Unthithode Monthly Below E Below E

WELL STATIONS

1 Thiruvanathapuram 1581 Pappanamkode Half Yearly

1582 Nedumangadu Half Yearly

2 Kollam 1583 Kundara Half Yearly

2314 Kureepuzha Half Yearly

2315 KMML Chavara Half Yearly

35 Punalur Half Yearly

3 Kottayam 2308 Fathimapuram Half Yearly

2309 Karoor Half Yearly

2310 Vaikom Half Yearly

2311 Vadavathoor Half Yearly

4 Alappuzha 1584 Cherthala Half Yearly

2313 Sarvodayapuram Half Yearly

5 Ernakulam 19 Eloor Half Yearly

1585 Vyttila Half Yearly

1586 Edayar Half Yearly

1587 Kalamassery Half Yearly

2323 Brahmapuram Half Yearly

6 Thrissur 1588 Poonkunnam Half Yearly

2321 Laloor Half Yearly

2322 Ollur Half Yearly

7 Palakkad 2327 Karukamani Half Yearly

8 Malappuram 1589 Malappuram Half Yearly

2320 Manjery Half Yearly

9 Kozhikode 22 Chungappally Half Yearly

1590 Mavoor Half Yearly

3463 Velliparamba Half Yearly

10 Kannur 1591 Kannur Half Yearly

1592 Payyannur I Half Yearly

2317 Punnelpettippalam Half Yearly

3474 Payyannur II Half Yearly

3472 Parassinikadavu Half Yearly

3475 Karimbam Half Yearly

No Station Details

1 River Stations 65

2 Rivulets/Tributaries 7

3 Reservoir Stations 6

4 Freshwater Lake Stations 3

5 Estuarine Lake Stations 8

6 Canal Stations 3

7 Pond Stations 2

8 Well Stations 34

Total 128

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Annexure IISTATE WATER QUALITY MoNIToRING PRoGRAMME NETWoRK 2019

Sl. No. Name of Water Body District Village Station

Code Station Name Monitoring Frequency Class

1 Karamana Thiruvananthapuram Peppara K1 Peppara Monthly B

Thiruvananthapuram Aruvikkara 3471 Aruvikkara Monthly B

Thiruvananthapuram Thirumala K2 Mangattukadavu Monthly C

Thiruvananthapuram K3 Pallathukadavu Monthly E

Thiruvananthapuram Thiruvallom K4 Thiruvallom Monthly E

Thiruvananthapuram 1155 Moonattumukku Monthly E

2 Ithikkara Kollam Anchal K5 Kottuvamukku Monthly B

Kollam Edamulakkal 1564 Ayoor Monthly B

Kollam Vellinalloor K6 Vellinalloor Monthly C

Kollam Adichanellore 2287 Ithikkara Monthly Below E

Kollam Adichanellore K7 Uppukadavu Monthly Below E

3 Pallickal Pathanamthitta Nellimugal 2288 Nellimugal Monthly B

Kollam Periyanadu K8 Adoor Monthly C

Kollam Kalladibhagom K9 Thodiyoor Monthly C

4 Achenkovil Kollam Pathanamthitta K10 Aruvappulam Monthly B

Kollam Konni K11 Konni Monthly B

Kollam Kumbazha K12 Kumbazha Monthly B

Kollam Pandalam 3466 Pandalam Monthly B

Kollam Pallipadu K13 Pallippadu Monthly B

5 Kallada Kollam Edamon K14 Urukunnu Monthly C

Kollam Punalur K15 Punallur Monthly C

Kollam Vilakudi 42 Perumthottamkadavu Monthly B

Kollam Pathanapuram K16 Pathanapuram Monthly B

Kollam Enathu K17 Enathu Monthly B

Kollam West Kallada K18 Kannamkottukadavu Monthly E

6 Pamba Pathanamthitta Perunadu K19 Kochupampa Monthly C

Pathanamthitta Perunadu K20 Kakkiyar Monthly D

Pathanamthitta Perunadu K21 Triveni Upstream Monthly D

Pathanamthitta Perunadu K22 Njunagar Monthly D

Alappuzha Perunadu 1565 Pampa Downstream Monthly B

Pathanamthitta Perunadu K23 Vadasserikkara Monthly C

Pathanamthitta Athikkayam K24 Athikkayam Monthly C

Pathanamthitta Ranni K25 Ranni Monthly C

Pathanamthitta Kozhencherry K26 Kozhencherry Monthly C

Pathanamthitta Chenganoor 1156 Chengannoor Monthly C

Pathanamthitta Edatua K27 Edatua Monthly E

Alappuzha Thakazhi 1341 Thakazhi Monthly C

Pathanamthitta Pulinkunnu K28 Pulinkunnu Monthly C

7 Meenachil Kottayam Thalanadu K29 Theekoy Monthly C

Kottayam Bharanganam K30 Bharanganam Monthly C

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Kottayam Mutholi K31 Kadappattoor Monthly C

Kottayam Ayarkunnam K32 Punnathara Monthly C

Kottayam Kottayam K33 Thazhathangadi Monthly C

Kottayam Kumarakam K34 Kumarakam Monthly C

8 Manimala Alappuzha Yendhayar K35 Yendhayar Monthly B

Alappuzha Mundakayam K36 Kottikkal Monthly C

Alappuzha Erumeli K37 Erumeli Monthly C

Alappuzha Cheruvally K38 Pazhayidam Monthly C

Alappuzha Mallappilly K39 Valakkayam Monthly C

Alappuzha Vellavoor K40 Manimala Monthly C

Alappuzha Mallapally K41 Mallappally Monthly C

Alappuzha Kaviyoor K42 Thottabhagam Monthly C

9 Muvattupuzha Kottayam Muttam K43 Malankara Dam Monthly C

Kottayam Velloorkunnam K44 Muvattupuzha Monthly C

Kottayam Muvattupuzha K45 Peruvammoozhy Monthly C

Kottayam Ramamangalam K46 Ramamangalam Monthly C

Kottayam Vellore K47 Piravom Monthly C

Kottayam Vadayar 43 Vettikkattumukku Monthly C

Kottayam Chempu K48 Murinjapuzha Monthly C

10 Chalakudy Thrissur Pariyaram K49 Peringal Bridge Monthly B

Thrissur Pariyaram K50 Vettilappara Monthly B

Thrissur Pariyaram K51 Kanjirapilly Monthly B

Thrissur Muringoor K52 Chalakkudy Bridge Monthly C

Thrissur Kalloor K53 Pulikkakadavu Monthly B

Thrissur Kalloor K54 Palapuzhakadavu Monthly B

11 Karuvannur Thrissur Puthoor K55 Kainoor Monthly B

Thrissur Nandipulam K56 Mupliyam Bridge Monthly C

Thrissur Arattupuzha K57 Palakkadavu Monthly B

Thrissur Porathissery 2289 Karuvannoor Bridge Monthly C

Thrissur Karalam K58 Kottenkode Monthly B

Thrissur Karalam K59 Karanchira Monthly C

12 Bharathapuzha Palakkad Pudussery K60 Naragampilly Monthly B

Palakkad Marutharode K61 Arangottukulumb Monthly B

Palakkad Parali K62 Parali Monthly B

Palakkad Erimayur K63 Tripalur Monthly C

Palakkad Vadakkancherry K64 Mangalam Monthly C

Palakkad Lakkidi K65 Lakkidi Monthly B

Palakkad Shornur K66 Shornur Monthly B

Palakkad Pattambi 2332 Pattambi Monthly B

Palakkad Cherupulassery K67 Thootha Monthly B

Malappuram Kuttipuram 2331 Bharathapuzha at Kuttipuram Monthly B

Malappuram Thavanoor K68 Thavannoor Monthly B

Malappuram Thavanoor K69 Nariparamba Monthly B

13 Kadalundi Malappuram Nenmeni K70 Oravambrum Monthly A

Malappuram Anakkayam K71 Anakkayam Monthly A

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Malappuram Panakad 2293 Hajiyarappilly Monthly A

Malappuram Oorakam K72 Manikuth Monthly A

Malappuram Vengara K73 Kooriyadu Monthly A

14 Tirur Malappuram Thalakad K74 Kooloopalam Monthly C

Malappuram Thalakad K75 Ezhur Monthly C

Malappuram Thalakad K76 Thazhepalam Monthly Below E

Malappuram Cheriyamundam 2292 Thalakadathur Monthly Below E

Malappuram Thalakad K77 Mangattiri Monthly Below E

15 Chaliyar Kozhikode Chaliyar K78 Kuruvanpuzha Monthly C

Kozhikode Mambad K79 Vadapuram Monthly C

Kozhikode Mambad K80 Mundaymthodu Monthly C

Kozhikode Arecode K81 Areacode Monthly C

Kozhikode Feroke K82 Feroke Monthly E

16 Kabani Wayanad Panamaram k83 U/S of Panamaram Monthly B

Wayanad Panamaram K84 D/S of Panamaram Monthly B

Wayanad Pulpally K85 DTPC Monthly B

Wayanad Pulpally K86 Forest Kadavu Monthly B

Wayanad Thrissilery K87 Thonikkadavu Monthly B

Wayanad Mananthavadi K88 U/S of Mananthavadi Monthly B

Wayanad Nallurnada K89 D/S of Mananthavadi Monthly B

17 Bhavani Palakkad Agali K90 Thavalam Monthly B

Palakkad Pudur K91 Kottathara Monthly B

18 Korapuzha Kozhikode Elathur K92 Purakkattiri Monthly Below E

Kozhikode Chemancheri K93 Anapparakkadavu/Vengalam Monthly Below E

19 Valapattanam Kannur Padiyoor 2318 Pazhashi Reservoir Monthly B

Kannur Irikkur K94 Irikkur Monthly B

Kannur Chengalayi K95 Chengalayi Monthly Below E

Kannur Parassinikadavu 3473 Parashinikkadavu Monthly Below E

Kannur Valapattanam K96 Valapattanam Monthly Below E

20 Shiriya Kasaragod Enmakaje K97 Yethadka Monthly B

Kasaragod Enmakaje K98 Bakkilapadavu Monthly B

Kasaragod Padre K99 Swargathodu Monthly B

Kasaragod Padre K100 Vani Nagar Monthly B

Kasaragod Nettangie K101 Sulliapadavu Monthly B

21 Thodupuzha Idukki Muttom K102 Near Malankara Dam Monthly D

Idukki Thodupuzha K103 Near Mooppilkkadavu Bridge Monthly D

Idukki Thodupuzha K104Near Pappootty Bar &

RestaurantMonthly D

Idukki Thodupuzha K105 Near Vengalloor Bridge Monthly D

Idukki Chittoor K106 Thookkupalam Near Chittoor Monthly D

22 Munnar Idukki Munnar K108 Nallathanni Monthly D

Idukki KDH Village K109 Kundala Monthly D

Idukki KDH Village K110 Muthirapuzha Monthly D

Idukki KDH Village K111 Near KSEB Dam Monthly D

Idukki Marayoor K107 Pambar Monthly D

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23 Vellayani Lake Thiruvananthapuram 3470 Vandithadam Monthly E

Thiruvananthapuram K112 Kakkamoola Left Monthly C

Thiruvananthapuram K113 Kakkamoola Right Monthly C

Thiruvananthapuram K114 Vavamoola Left Monthly C

Thiruvananthapuram K115 Vavamoola Right Monthly C

Thiruvananthapuram K116 Agriculture College Monthly C

24 Sastamkotta Lake Kollam Sasthamkotta 1385 Sasthamkotta Monthly B

Kollam Sasthamkotta K117 Ambalakkadavu Monthly B

Kollam Sasthamkotta K118 KWA Pump House Monthly B

Kollam West Kallada K119 Kottakkuzhi Monthly B

Kollam West Kallada K120 Villanthra Monthly B

Kollam Mynagappally K121 Pottakkannamukku Monthly B

Kollam West Kallada K122 Vattolikkadavu Monthly B

25 Pookode Lake Wayanad Kunnathidavaka K123 Boat Jetty Monthly B

Wayanad Kunnathidavaka K124 Deepest Point Monthly B

Wayanad Kunnathidavaka K125 Silt Depositing Zone Monthly A

Wayanad Kunnathidavaka 1580 Centre Point Monthly B

Wayanad Kunnathidavaka K126 Second Deepest Point Monthly A

26 Thekkady Lake Kottayam Kumali K127 Canal Shutter Monthly C

Kottayam Kumali K128 Boat Landing Monthly C

Idukki Kumali 1576 Dam Site Monthly C

Kottayam Kumali K129 Padikkayam Monthly C

Kottayam Kumali K130 Thannikudy Monthly B

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Annexure IIIGEOGRAPHICAL COORDINATES OF RIVER STATIONS (NWMP & SWMP)

Sl. No.Name of Water Body District Station Code Station Name Latitude Longitude

RIVER STATIONS

1 Neyyar Thiruvananthapuram 1563 Amaravila 08°23'29"N 77°05'55"E

Thiruvananthapuram 2284 Aruvippuram 08°25'25"N 77°05'35"E

2 Mamom Thiruvananthapuram 2285 Mamom Bridge 08°40'39"N 76°49'38"E

3 Ayroor Thiruvananthapuram 2286 Ayroor Bridge 08°46'26"N 76°43'31"E

4 Karamana Thiruvananthapuram K1 Peppara 08°37'22.39"N 77°08'16.89"E

Thiruvananthapuram 3471 Aruvikkara 08°34'21"N 77°01'13"E

Thiruvananthapuram K2 Mangattukadavu 08°29'47.63"N 77°0'14.46"E

Thiruvananthapuram K3 Pallathukadavu 08°27'18.58"N 76°57'31.7"E

Thiruvananthapuram K4 Thiruvallom 08°26'30.07"N 76°57'14.89"E

Thiruvananthapuram 1155 Moonnattumukku 08°26'29"N 76°57'12"E

5 Ithikkara Kollam K5 Kottuvamukku 08°54'30"N 76°53'55"E

Kollam 1564 Ayoor 08°53'25"N 76°46'28"E

Kollam K6 Vellinalloor 08°51'27"N 76°46'28"E

Kollam 2287 Ithikkara 08°51'43"N 76°46'51"E

Kollam K7 Uppukadavu 08°50'14"N 76°40'20"E

6 Vamanapuram Thiruvananthapuram 1442 Vamanapuram 08°43'38"N 76°53'54"E

7 Pallickal Pathanamthitta 2288 Nellimugal 09°07'33"N 76°42'14"E

Kollam K8 Adoor 09°09'43"N 76°43'23"E

Kollam K9 Thodiyoor 09°03'38"N 76°33'58"E

8 Achenkovil Kollam K10 Aruvappulam 09°15'25"N 76°48'16"E

Kollam K11 Konni 09°13'49"N 76°51'18"E

Kollam K12 Kumbazha 09°15'23"N 76°48'15"E

Pathanamthitta 3465 Kallarakadavu 09°15'29"N 76°47'23"E

Pathanamthitta 1342 Thumpamon 09°13'48"N 76°43'49"E

Pathanamthitta 3466 Pandalam 09°14'01"N 76°40'22"E

Kollam K13 Pallippadu 09°16'41"N 76°29'26"E

Alappuzha 1443 Chennithala 09°15'42"N 76°31'50"E

9 Kallada Kollam K14 Urukunnu 08°59'12"N 77°01'15"E

Kollam K15 Punallur 09°01'04"N 76°55'41"E

Kollam 42 Perumthottamkadavu 09°04'57"N 76°51'59"E

Kollam K16 Pathanapuram 09°04'04"N 76°51'21"E

Kollam K17 Enathu 09°05'18"N 76°45'19"E

Kollam K18 Kannamkottukadavu 09°00'1522"N 76°6103'24"E

10 Pamba Pathanamthitta K19 Kochupampa 09°24'.823"N 77°04'.246"E

Pathanamthitta K20 Kakkiyar 09°24'.798"N 77°04'.236"E

Pathanamthitta K21 Triveni Upstream 09°24'.801"N 77°04'.029"E

Pathanamthitta K22 Njunagar 09°41'.648"N 77°06'.658"E

Alappuzha 1565 Parumala (Pamba Down) 09°32'84"N 76°53'67"E

Pathanamthitta K23 Vadasserikkara 09°34'153"N 76°82'924"E

Pathanamthitta K24 Athikkayam 09°22'.911"N 76°50'.113"E

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Pathanamthitta K25 Ranni 09°22'.785"N 76°46'.741"E

Pathanamthitta K26 Kozhancheri 09°20'.218"N 76°42'.235"E

Alappuzha 1156 Chengannur 09°33'54"N 76°60'81"E

Pathanamthitta K27 Edatua 09°21'.860"N 76°28'.614"E

Alappuzha 1341 Thakazhi 09°37'053"N 76°42'159"E

Pathanamthitta K28 Pulinkunnu 09°26'944"N 76°26'729"E

11 Meenachil Kottayam K29 Theekoy 09°41'950"N 76°43'805"E

Kottayam K30 Bharanganam 09°41'950"N 76°43.805"E

Kottayam K31 Kadappattoor 09°42'26"N 76°40'19"E

Kottayam 1339 At Kidangoor 09°68'21"N 76°60'80"E

Kottayam K32 Punnathara 09°26'596"N 76°25'811"E

Kottayam K33 Thazhathangadi 09°35'443"N 76°29'952"E

Kottayam K34 Kumarakam 09°62'85"N 76°.42'980"E

12 Manimala Pathanamthitta 1340 Kalloopara 09°23'34"N 76°38'40"E

Pathanamthitta 1384 Thondra 09°21'64"N 76°35'23"E

Alappuzha K35 Yendhayar 09.617921° N 76.891521° E

Alappuzha K36 Kottikkal 09°35'480"N 76°52'980"E

Alappuzha K37 Erumeli 09°33'600"N 76°48'821"E

Alappuzha K38 Pazhazhyidam 09°31'579"N 76°46'966"E

Alappuzha K39 Valakkayam 09.512090N 76.780575 E

Alappuzha K40 Manimala 09°28'494"N 76°44'530"E

Alappuzha K41 Mallappally 09°26'820"N 76°39'645"E

Alappuzha K42 Thottabhagam 09°23'158"N 76°37'159"E

13 Periyar Ernakulam 18 Kalady 10°09'40"N 76°26'31"E

Ernakulam 3468 KWA Aluva 10°06'43"N 76°21'38"E

Ernakulam 1338 SDP Aluva 10°05'45"N 76°20'36"E

Ernakulam 2333 Muppathadam 10°05'30"N 76°20'02"E

Ernakulam 17 Eloor 10°04'22"N 76°16'52"E

Ernakulam 2334 Pathalam 10°05'15"N 76°17'55"E

Ernakulam 2336 Purappillikadavu 10°08'41"N 76°16'56"E

Ernakulam 2335 Kalamassery 10°03'48"N 76°19'06"E

14 Muvattupuzha Kottayam K43 Malankara Dam 09°51'9.36"N 76°44'41"E

Kottayam K44 Muvattupuzha 09°59'21.84"N 76°34'44.4"E

Kottayam K45 Peruvammoozhy 09°58'33.24"N 76°30'26.3"E

Kottayam K46 Ramamangalam 09°56'8.88"N 76°29'50.64"E

Kottayam K47 Piravom 09°52'23.16"N 76°29'31.2"E

Kottayam 43 Vettikkattumukku 09°48'13.7"N 76°27'20.16"E

Kottayam K48 Murinjapuzha 09°49'0.12"N 76°23'38.4"E

15 Chalakudy Thrissur K49 Peringal Bridge 10°18'09.84"N 76°35'46.92"E

Thrissur K50 Vettilappara 10°17'33.86"N 76°28'39.32"E

Thrissur K51 Kanjirapilly 10°18'14.59"N 76°23'48.29"E

Thrissur K52 Chalakkudy Bridge 10°17'41.04"N 76°20'11.06"E

Thrissur K53 Pulikkakadavu 10°14'01.75"N 76°1953.26"E

Thrissur 1154 Pulickakadavu 10°12'48"N 76°19'58"E

Thrissur K54 Palapuzhakadavu 10°14'01.75"N 76°2010.96'E

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16 Karuvannur Thrissur K55 Kainoor 10°29'26.04"N 76°16'30.06"E

Thrissur K56 Mupliyam Bridge 10°24'07.75"N 76°19'58.50"E

Thrissur K57 Palakkadavu 10°25'27.75"N 76°14'11.26"E

Thrissur 2289 Karuvannur at Karuvannur Bridge 10°24'14"N 76°12'41"E

Thrissur K58 Kottenkode 10°24'07.59"N 76°12'20.31"E

Thrissur K59 Karanchira 10°24'06.68"N 76°09'06.31"E

17 Puzhakkal Thrissur 2290 Puzhakkal at Puzhakkal Bridge 10°32'44"N 76°10'41"E

18 Keecheri Thrissur 2291 Keechery at Vadakkancherry 10°37'08"N 76°06'53"E

19 Bharathapuzha Palakkad K60 Naragampilly 10°42'.974"N 76°43'.099"E

Palakkad K61 Arangottukulumb 10°48'08.9"N 76°42'10.8"E

Palakkad K62 Parali 10°47'.850"N 76°33'.551"E

Palakkad K63 Tripalur 10°38'.915"N 76°29'.718"E

Palakkad K64 Mangalam 10°36'.028"N 76°29'.396"E

Palakkad K65 Lakkidi 10°54'.940"N 76°17'.405"E

Palakkad K66 Shornur 10°45'.234"N 76°16'.513"E

Palakkad 2332 Bharathapuzha at Pattambi 10°47'57"N 76°10'49"E

Palakkad K67 Thootha 10°54'.940"N 76°17'.405"E

Malappuram 2331 Bharathapuzha at Kuttipuram 10°50'26"N 76°01'20"E

Malappuram K68 Thavannoor 10°85'4286"N 75°97'6887"E

Malappuram K69 Nariparamba 10°81'9095"N 75°96'.3927"E

20 Kadalundi Malappuram K70 Oravambrum 11°05'.095"N 76°13'.175"E

Malappuram K71 Anakkayam 11°04'.924"N 76°07'.335"E

Malappuram 2293 Hajiyarappilly 11°03'111"N 76°03'505"E

Malappuram K72 Manikuth 11°02'.817"N 76°01'.017"E

Malappuram K73 Kooriyadu 11°02'.547"N 75°56'.375"E

Malappuram 1566 Thiroorangady 11°02'10"N 76°56'14"E

21 Tirur Malappuram K74 Kooloopalam 10°52'.853"N 75°57'.166"E

Malappuram K75 Ezhur 10°91'6055"N 75°.944698"E

Malappuram K76 Thazhepalam 10°91'4562"N 75°91'.8419"E

Malappuram 2292 Tirur at Thalakkadathur 10°55'975"N 75°560'48"E

Malappuram K77 Mangattiri 10°53'.499"N 75°55'.011"E

22 Chaliyar Malappuram 3464 At Nilambur 11°16'35"N 76°13'18"E

Kozhikode K78 Kuruvanpuzha 11°31'117"N 76°19'993"E

Kozhikode K79 Vadapuram 11°26'261"N 76°20'385"E

Kozhikode K80 Mundayamthodu 11°27'064"N 76°18'252"E

Kozhikode K81 Areacode 11°13'.548"N 76°03'.435"E

Kozhikode 20 At Koolimadu 11°16'06"N 75°58'41"E

Kozhikode 21 At Chungappilly 11°14'31"N 75°53'57"E

Kozhikode K82 Feroke 11°18'.0769"N 75°82'.27793"E

23 Kabani Wayanad 1207 At Muthankara 11°48'31"N 76°05'08"E

Wayanad K83 U/S of Panamaram 11°72'46"N 76°05'81"E

Wayanad K84 D/S of Panamaram 11°74'15"N 76°07'41"E

Wayanad K85 DTPC 11°82'19"N 76°08'99"E

Wayanad K86 Forest Kadavu 11°74'15"N 76°07'41"E

Wayanad K87 Thonnikkadavu 11°84'53"N 76°11'35"E

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Wayanad K88 U/S of Mananthavadi 11°79'98"N 75°99'76"E

Wayanad K89 D/S of Mananthavadi 11°78'77"N 76°00'29"E

24 Bhavani Palakkad K90 Thavalam 11°05'.603"N 76°35'.456"E

Palakkad K91 Kottathara 11°09'.795"N 76°41'.488"E

Palakkad 1208 Bhavani at Elachivazhi 11°09'22"N 76°40'07"E

25 Kuttiyadi Kozhikode 1567 At Kuttiyadi Estate 11°35'58"N 75°50'10"E

26 Mahe Kozhikode 1568 At Valayam 11°42'05"N 75°39'59"E

27 Kallai Kozhikode 2294 At Kallai Bridge 11°14'13"N 75°47'16"E

28 Korapuzha Kozhikode 2295 At Kanayankode 11°26'38"N 75°43'42"E

Kozhikode K92 Purakkattiri 11°34'.1416"N 75°76'.1122"E

Kozhikode K93 Anapparakkadavu/Vengalam 11°37'.1393"N 75°74'.2508"E

29 Kuppam Kannur 2298 At Rayoram 12°12'35"N 75°26'28"E

Kannur 1569 At Thaliparamba 12°47'12.7"N 75°34'06.6"E

30 Thalassery Kannur 2296 At Pathipalam 12°47'12.7"N 75°34'06.6"E

31 Ancharakkandy Kannur 2297 At Meruvamba 11°52'30.4"N 75°34'38.4"E

Kannur 2319 At Ancharakkandy 11°52'58.2"N 75°31'45.7"E

32 Ramapuram Kannur 2299 At Ramapuram Bridge 12°02'47"N 75°15'56"E

33 Kavai Kannur 2301 At Kuttiyolpalam 12°09'35.4"N 75°12'34.2"E

34 Valapattanam Kannur 2318 Pazhassi Reservoir 11°59'26"N 75°37'05"E

Kannur K94 Irikkoor 11°59'.427"N 75°32'.866"E

Kannur K95 Chengalayi 12°02'.228"N 75°29'.344"E

Kannur 3473 At Parassinikadavu 11°59'06"N 75°24'13.5"E

Kannur K96 Valapattanam 11°55'.833"N 75°21'.207"E

35 Neeleswaram Kasaragod 2302 At Nambiarckal 12°19'280"N 75°05'02"E

Kasaragod 1570 At Hosdurg 12°15'11.3"N 75°07'25.5"E

36 Kariangode Kasaragod 1571 At Kakkadavu 12°16'.029"N 75°16'920"E

37 Chandragiri Kasaragod 1572 At Padiyathadka 12°33'576"N 74°57'372"E

38 Mogral Kasaragod 2304 At Mogral Bridge 12°16'179"N 75°05'015"E

39 Shiriya Kasaragod K97 Yethadka 12°36'07.7"N 75°07'34.5"E

Kasaragod K98 Bakkilapadavu 12°40'20.4"N 75°05'21.8"E

Kasaragod K99 Swargathodu 12°38'11.9"N 75°08'15.3"E

Kasaragod K100 Vani Nagar 12°35'38.8"N 75°10'56.8"E

Kasaragod K101 Sulliapadavu 12°36'34.5"N 76°12'09.0"E

Kasaragod 2305 At Angadimogaru 12°16'129"N 75°07'234"E

40 Uppala Kasaragod 2306 At Uppala Bridge 12°19'279"N 74°05'012"E

41 Manjeswaram Kasaragod 2307 At Bajarkkara Bridge 12°16'179"N 75°07'234"E

42 Peruvamba Kannur 2300 At Chandappura 12°06'30.7"N 75°17'12"E

43 Thodupuzha Idukki K102 Near Malankara Dam 09°50'908"N 76°44'632"E

Idukki K103 Near Mooppilakkadavu Bridge 09°89'44015"N 76°71'6438"E

Idukki K104 Near Pappootty Bar & Restaurant 09°89'750"N 76°71'146"E

Idukki K105 Near Vengalloor Bridge 09°90'102"N 76°70'569"E

Idukki K106 Thookkupalam Near Chittoor 09°91'690"N 76°68'440"E

44 Munnar Idukki K107 Pambar 10°51'51"N 77°10'112"E

Idukki K108 Nallathanni 10°09'451"N 77°54'48"E

Idukki K109 Kundala 10°84'48"N 77°62'74"E

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Idukki K110 Muthirapuzha 10°81'99"N 77°62'24"E

Idukki K111 Near KSEB Dam 10°70'74"N 77°06'287"E

RIVULETS/TRIBUTARIES

1 Kadambrayar Ernakulam 2338 Manakkakadavu 10°12'48"N 76°19'58"E

Ernakulam 2337 Brahmapuram 09°59'38"N 76°21'42"E

2 Chithrapuzha Ernakulam 1573 Irumpanam 09°59'30"N 76°21'07"E

3 Korayar Palakkad 2326 Korayar at Kanjikode 10°47'44"N 76°46'49"E

4 Pullur Kasaragod 2303 At Pullur Bridge 12°20'595"N 75°05'560"E

5 Kalpathypuzha Palakkad 3460 Kalpathipuzha at Kalpathi 10°47'25"N 76°38'23"E

6 Maniyankodepuzha Wayanad 3459 Maniyankode Bridge 11°37'35"N 76°03'32"E

FRESH WATER LAKE STATIONS

1 Vellayani Lake Thiruvananthapuram 3470 Vandithadam 08°39'11"N 76°48'47"E

Thiruvananthapuram K112 Kakkamoola Left 08°42'81526"N 76.9947168 E

Thiruvananthapuram K113 Kakkamoola Right 08°42'81526"N 76.9947168 E

Thiruvananthapuram K114 Vavamoola Left 08°412'849"N 76°99'.4432"E

Thiruvananthapuram K115 Vavamoola Right 08°412'849"N 76°99'.4432"E

Thiruvananthapuram K116 Agriculture College 08°43'22797"N 76°99'01514"E

2 Sasthamkotta Lake Kollam 1385 Sasthamkotta Lake 09°04'24"N 76°37'30"E

Kollam K117 Ambalakkadavu 09°04'00"N 76°62'89"E

Kollam K118 KWA Pump House 09°04'24"N 76°62'30"E

Kollam K119 Kottakkuzhi 09°03'02"N 76°61'41"E

Kollam K120 Villanthra 09°03'21"N 76°62'50"E

Kollam K121 Pottakkannamukku 09°03'45"N 76°61'34"E

Kollam K122 Vattolikkadavu 09°03'37"N 76°63'09"E

3 Pookode Lake Wayanad K123 Boat Jetty 11°54'09"N 76°02'72"E

Wayanad K124 Deepest Point 11°54'13"N 76°02'74"E

Wayanad K125 Silt Depositing Zone 11°54'24"N 76°02'81"E

Wayanad 1580 Pookode Lake 11°32'26"N 76°01'37"E

Wayanad K126 Second Deepest Point 11°54'27"N 76°02'67"E

ESTUARINE LAKE STATIONS

1 Akkulam Thiruvananthapuram 1383 Oruvathilkotta 08°29'39"N 76°55'52"E

2 Ashtamudi Lake Kollam 1441 Astamudi Lake 08°48'19"N 76°40'01"E

3 Paravur Lake Kollam 1574 Paravur Lake 09°14'01"N 76°40'14"E

4 Punnamada Lake Alappuzha 1579 Punnamada lake 09°30'02"N 76°21'13"E

5 Vembanadu Lake Alappuzha 2312 Pathiramanal 09°37'11"N 76°22'59"E

Ernakulam 1575 Oil Tanker Jetty 09°57'59"N 76°16'44"E

6 Kodungallur Lake Ernakulam 1577 Kodungallur Lake 10°11'58"N 76°12'00"E

7 Kayamkulam Lake Alappuzha 1578 Kayamkulam lake 09°09'12"N 76°28'49"E

RESERVOIRS, PONDS & CANAL STATIONS

1 Pazhassi RSVR Kannur 2318 Pazhassi Reservoir 11°59'26"N 75°37'05"E

2 Edamalayar RSVR Ernakulam 2330 Edamalayar Reservoir 10°13'13"N 76°42'21"E

3 Bhoothathankettu RSVR Ernakulam 2329 Bhoothathankettu Reservoir 10°08'06"N 75°39'41"E

4 Malampuzha RSVR Palakkad 2328 Reservoir at Malampuzha 10°49'44"N 76°40'51"E

5 Periyar(Thekkady Lake) Kottayam K127 Canal Shutter 09°59'69"N 77°17'27"E

Kottayam K128 Boat Landing 09°57'75"N 77°17'99"E

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Idukki 1576 Thekkady Lake 09°52'94"N 77°14'43"E

Kottayam K129 Padikkayam 09°55'04"N 77°15'68"E

Kottayam K130 Thannikudy 09°55'04"N 77°15'68"E

6 Karapuzha RSVR Wayanad 3458 Karapuzha Dam at Wayanad 11°37'03"N 76°10'16"E

7 Mananchira Pond Malappuram 3462 At Kozhikode 11°15'18"N 75°46'46"E

8 Padmatheertham Pond Thiruvananthapuram 2325 Padmatheertham 08°28'58"N 76°56'43"E

9 Canoli Canal Kozhikode 3461 At Eranjikkal 11°19'14"N 76°45'31"E

10 Palakkattuthazhamthodu Ernakulam 3469Palakkattuthazhamthodu at

Perumbavoor10°06'51"N 76°27'56"E

11 Unthithode Canal Ernakulam 3467 Unthithodu canal at Eloor 10°04'17"N 76°17'10"E

gROUND WATER (WELL STATIONS)

1 Thiruvananthapuram Thiruvananthapuram 1581 Well at Pappanamcode 08°28'27"N 76°58'87"E

Thiruvananthapuram 1582 Well at Nedumangadu 08°36'26"N 76°59'89"E

2 Kollam Kollam 35 Well at Punalur 11°14'31"N 75°53'57"E

Kollam 1583 Well at Kundara 08°57'22"N 76°40'26"E

Kollam 2315 Well at Chavara 09°00'28"N 76°32'08"E

Kollam 2314 Well at Kureepuzha 08°54'26"N 76°33'32"E

3 Alappuzha Alappuzha 2313 Well at Sarvodayapuram 09°33'18"N 76°19'17"E

Alappuzha 1584 Well at Cherthala 09°41'33"N 09°41'33"E

4 Kottayam Kottayam 2308 Well at Fathimapuram 09°44'95"N 76°55'37"E

Kottayam 2309 Well at Karoor 09°73'84"N 76°68'48"E

Kottayam 2310 Well at Vaikom 09°72'16"N 76°39'27"E

Kottayam 2311 Well at Karoor 09°59'51"N 76°56'32"E

5 Ernakulam Ernakulam 1585 Well at Vyttila 09°58'08"N 76°19'01"E

Ernakulam 1586 Well at Edayar 10°05'18"N 76°18'09"E

Ernakulam 1587 Well at Kalamassery 10°02'50"N 76°19'00"E

Ernakulam 19 Well at Eloor 10°04'22"N 76°18'27"E

Ernakulam 2323 Well at Brahmapuram 09°59'28"N 76°21'49"E

Ernakulam 2324 Ambalamughal Borewell 09°59'03"N 76°21'49"E

6 Thrissur Thrissur 2321 Well at Laloor 10°30'55"N 76°11'09"E

Thrissur 2322 Well at Ollur 10°28'54"N 76°11'07"E

Thrissur 1588 Well at Punkunnam 10°22'29"N 76°12'29"E

7 Palakkad Palakkad 2327 Well at Karukamani 10°41'46"N 76°43'25"E

8 Malappuram Malappuram 1589 Well at Malappuram 11°02'48"N 76°05'03"E

Malappuram 2320 Well at Manjeri 11°06'40"N 76°08'26"E

9 Kozhikode Kozhikode 22 Well at Chungappilly 11°14'37"N 76°53'53"E

Kozhikode 1590 Well at Mavoor 11°15'39"N 75°57'07"E

Kozhikode 3463 Well at Velliparamba 11°16'08"N 76°50'30"E

10 Kannur Kannur 1591 Well at Kannur 11°05'264"N 75°022'17"E

Kannur 1592 Well at Payyannur Janatha Mill 12°08'88"N 75°12'86"E

Kannur 2317 Well at Punnolpettipalam 11°53'22"N 75°30'92"E

Kannur 2316 Well at Chelora Trenching Ground 11°54'04"N 75°26'31"E

Kannur 3472 Well at Parassinikadavu Temple 11°54'29"N 75°26'47"E

Kannur 3474 Well at Payyannur (Murukoil) 12°07'15"N 75°12'31"E

Kannur 3475 Well at Karimbam 12°02'34"N 75°22'42"E

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Annexure IVWATER QuALITy CRITERIA (CPCB)

The water quality management in India is performed under the provisions of Water (Prevention and Control of Pollution) Act, 1974. But the Act does not define the level of wholesomeness to be maintained or restored in different water bodies of the country. It was considered ambitious to maintain or restore all natural water body at prestine level. Planning pollution control activities to attain such a goal is bound to be deterrent to developmental activities and is also cost prohibitive. Thus the Central Pollution Control Board evolved a concept of “Designated Best Use (DBU) to define the level of wholesomeness of the different water bodies to be maintained or restored according to the primary use of the water body.

use based classification of surface waters in India.

Designated-Best-UseClass of

waterCriteria

Drinking Water Source without conventional treatment but after disinfection

A

Total Coliforms Organism MPN/100ml shall be 50 or lesspH between 6.5 and 8.5

Dissolved Oxygen 6mg/l or moreBiochemical Oxygen Demand 5 days 20C 2mg/l or less

Outdoor bathing (Organised) BTotal Coliforms Organism MPN/100ml shall be 500 or less pH between 6.5 and

8.5 Dissolved Oxygen 5mg/l or moreBiochemical Oxygen Demand 5 days 20C 3mg/l or less

Drinking water source after conventional treatment and disinfection

CTotal Coliforms Organism MPN/100ml shall be 5000 or less pH between 6 to 9

Dissolved Oxygen 4mg/l or moreBiochemical Oxygen Demand 5 days 20C 3mg/l or less

Propagation of Wild life and Fisheries DpH between 6.5 to 8.5 Dissolved Oxygen 4mg/l or more

Free Ammonia (as N) 1.2 mg/l or less

Irrigation, Industrial Cooling, Controlled Waste disposal

E

pH between 6.0 to 8.5Electrical Conductivity at 25C micro mhos/cm Max.2250

Sodium absorption Ratio Max. 26Boron Max. 2mg/l

Class-E Not Meeting A, B, C, D & E Criteria

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362

Annexure VNATIONAL AMBIENT AIR QuALITy STANDARDS (NAAQS)

Sl No. Pollutant

Time weight-ed

average

Concentration in Ambient Air

Industrial, Resi-dential, Rural &

other area

Ecologically Sensi-tive area (notified by Central Govt.

Method of measurement

(1) (2) (3) (4) (5) (6)

1Sulphur dioxide (SO2) µg/m3 Annual * 50

201. Improved West and Gaeke Method2. Ultraviolet Fluorescence

24 Hours ** 8080

2

Oxides of Nitrogen (NO2) µg/m3 Annual * 40

301. Modified Jacob & Hochheiser

(Na-Arsenite) 2. Chemiluminescence

24 Hours ** 8080

3Particulate Matter (Size less than 10µm) or PM10 µg/m3 Annual * 60 60

1. Gravimetric2. TOEM3. Beta attenuation

24 Hours ** 100 100

4Particulate Matter (Size less than 2.5µm) or PM2.5 µg/m3 Annual * 40 40

1. Gravimetric2. TOEM3. Beta attenuation

24 Hours ** 60 60

5Ozone (O3)µg/m3 8 Hours * 100 100

1. UV Photometric2. Chemiluminescence3. Chemical Method

1 Hour ** 180 180

6Lead (Pb)µg/m3 Annual * 0.5 0.5

1. AAS / ICP method after sam-pling on EPM 2000 or equiva-lent filter paper

2. ED-XRF using Teflon filter24 Hours ** 1.0 1.0

7Carbon Monoxide (CO) mg/m3 8 Hours ** 02 02 1. Non Dispersive Infrared

(NDIR) Spectroscopy1 Hour 04 04

8Ammonia (NH3)µg/m3 Annual * 100 100 1. Chemiluminescence

2. Indophenol blue method24 Hours ** 400 400

9Benzene (C6 H6)µg/m3

Annual *

05 051. Gas Chromatography based

continuous analyzer2. Adsorption and Desorption

followed by GC Analysis

10Benzo (a) Pyrene (BaP) – Particulate phase only, ng/m3

Annual *

01 01 - Solvent extraction followed by HPLC/GC analysis

11Arsenic (As)ng/m3 Annual * 06 06

1. - AAS / ICP method after sampling on EPM 2000 or equiva-lent filter paper

12 Nickel (Ni), ng/m3 Annual * 20 201. - AAS / ICP method after sampling on EPM 2000 or equiva-lent filter paper

* Annual arithmetic mean of minimum 104 measurements in a year twice a week 24 hourly at uniform interval.** 24 hourly/8 hourly values should be met 98% of the time in a year. However, 2% of the time, it may exceed but not

on two consecutive days.

NOTE1. National Ambient Air Quality Standard: The levels of air quality necessary with an adequate margin of safety, to protect

the public health, vegetation and property.2. Whenever and wherever two consecutive values exceed the limit specified above for the respective category, it would

be considered adequate reason to institute regular/continuous monitoring and further investigations

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Annexure VIPARAMETERS, UNITS, METHoDS & REfERENCES

SL.No PARAMETER UNIT METHoDS REfERENCE

1 Temperature 0c Thermometer APHA-2550 B

2 pH --- pH Meter-Electrometric method APHA-4500 H+ B

3 Ele.Conductivity µs/cm Conductivity meter APHA-2510 B

4 Dissolved Oxygen mg/l Titrimetric Method ( Winkler-Modified) APHA- 4500 –O C

5 Turbidity NTU Nephelometric method APHA -2130 B

6 Ammoniacal Nitrogen(NH4N) mg/l Colorimetric -Phenate method APHA-4500 -NH3 F

7 Nitrate-Nitrogen mg/l Cadmium reduction ,followed by colorimetric APHA-4500 -NO3

- e

8 Nitrite Nitrogen mg/l colorimetric APHA-4500 -NO2- B

9 Orthophosphate as PO4 mg/l Colorimetric (Ascorbic acid) method APHA-4500- P E

10 Biochemical Oxygen Demand(BOD) mg/l Oxygen Depletion method( 3 Days at

27oC) IS :3025 (Part 44)

11 Chemical Oxygen Demand(COD) mg/l Open reflux method APHA-5220 B

12 Sodium mg/l Flame Photometry method APHA -3500-Na B

13 Potassium mg/l Flame Photometry method APHA- 3500-K B

14 calcium mg/l EDTA- Titrimetric method APHA-3500 -Ca B

15 Magnesium mg/l EDTA- Titrimetric method APHA- 3500 -Mg B

16 Chloride mg/l Titrimetric (Argentometric) method APHA-4500- Cl- B

17 Sulphate mg/l Turbidity method APHA- 4500 -SO42- e

18 Fluoride mg/l Colorimetric/Ion -Selective Electrode method

APHA -4500-F- D/ APHA-4500-F- c

19 Boron mg/l Colorimetric (Curcumin) method APHA-4500- B B

20 Total Coliform n/100ml MF method-Standard Total Coliform Membrane Filter procedure APHA-9222 B

21 Fecal Coliform n/100ml MF method- Fecal Coliform Membrane Filter procedure APHA -9222 D

22 T.K.N mg/l Digestion and Colorimetric-Macro Kjeldahl method APHA -4500-Norg B

23 Total Dissolved Solids mg/l Gravimetric method-Dried at 1800 c APHA-2540 C

24 Total Suspended Solids mg/l Gravimetric method-Dried at 103-1050 c APHA-2540 D

25 Total Fixed and Volatile Solids mg/l Gravimetric method-heated at

5500 c APHA-2540 E

26 Hardness mg/l EDTA Titrimetric method APHA-2340 C

27 Alkalinity mg/l Titration method APHA-2320 B

28 Other Metals µg/l Atomic Absorption Spectrometry method APHA- 3111 B

29 Organo chlorine Pesticides µg/l Gas Chromatography APHA-6630 B

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Annexure VII

ABBREVIATIONSATD Automated Thermal Desorber

APHA American Public Health Association

BDL Class Detection Level

BDU Best Designated Use

BOD Biochemical Oxygen Demand

COD Chemical Oxygen Demand

CPCB Central Pollution Control Board

DO Dissolved Oxygen

ecD Electron Capture Detector

FC Fecal Coliforms

FDS Fixed Dissolved Solids

FID Flame Ionization Detector

Gc Gas Chromatograph

HPLC High Performance Liquid Chromatograph

IC Ion Chromatograph

IS Indian Standards

Max/Maxim Maximum

Min/Minim Minimum

MPN Most Probable Number

NAAQS National Ambient Air Quality Standards

NAMP National Air Quality Monitoring Programme

NPD Nitrogen Phosphorous Detector

NTU Nephelometric Turbidity Unit

NWMP National Water Quality Monitoring Programme

RSPM Respirable Particulate Matter

SAMP State Air Quality Monitoring Programme

sD Standard Deviation

SPM Suspended Particulate Matter

SWMP State Water Quality Monitoring Programme

TC Total Coliforms

TCLP Toxicity Characteristic Leachate Procedure

TDS Total Dissolved Solids

TKN Total Kjeldhal Nitrogen

TOC Total Organic Carbon

TOX Total Organic Halogens

TSS Total Suspended Solids

UV Ultra-Violet