9.1 educational program assessment - Board Docs

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Howard County Public School System – Mount Hebron High School Page 9.1-1 April, 2008 9.1 EDUCATIONAL PROGRAM ASSESSMENT Gilbert Architects Inc. (GAI) conducted an educational program assessment of Mount Hebron High School during the months of March and April, 2007. This included an interview with David Brown, Principal on March 30, 2007 (copies of minutes are included in Section 5.7); a survey of the existing building on April 3, 2007 utilizing the Council of Educational Facility Planners International (CEFPI) Guide for School Facility Appraisal for High Schools; and a review of original design and existing floor plans to compare program utilization with the current High School Educational Specifications for HCPSS. This building has a total net program area of 136,442 sf versus the educational specification standard of 171,841 sf, or a net deficiency of -35,399 sf (20.6%). There are several spaces in this building that are oversized. This includes the CR&D classroom programmed for only 500 sf that is in a large oversized classroom (+435 sf) and the Special Education Emotional Disturbances Program that is oversized by +251 sf. It may be possible to renovate these spaces to include some additional program areas that are currently deficient. It is estimated that a building addition of between 51,000 and 56,000 gsf would be required to increase the size of all program areas to meet the current ed. specs. However, increasing the size of the existing Auditorium that is undersized at this building by -1,735 sf would not be cost effective. It should also be noted that this school does not currently provide a regional program for JROTC students. If this program is not added to Mount Hebron High School, the estimated gross sf of building additions listed above could be reduced by approximately 3,000 gsf. Mount Hebron High School had an enrollment of 1,411 students at the time of our survey with 70 total teaching stations (plus 4 portable temporary classroom units). Some of the technical resource rooms that were originally provided in this building have been converted to teaching stations due to the increased enrollments. Enrollment projections indicate slight increases over the next several years. Overall, Mount Hebron High School received a score of 629 points out of 1,000 on the CEFPI Appraisal Guide, equating to an “average” rating. This is an indication that there are areas of improvement that should be implemented at this facility to bring it up to a “good” or “excellent” rating. A copy of the detailed CEFPI Assessment is included at the end of this section. The manner in which spaces are actually being utilized may vary from the original design based on the discretion of the school’s administrators. Building Program Variances Based on the space requirements identified on the Educational Specification Comparison Chart following this list, original design drawings and on our interviews and field surveys, we have identified the following primary building program deficiencies at Mount Hebron High School (Note: variances less than 5% will not be discussed here – all data is available on summary chart on pages 9.1-4 thru 9.1-7): Administration is undersized by -1,070 sf (33.0%) and is missing a 4 th assistant principal’s office and conference room. A security vestibule should be provided with control by the Administration reception area. Guidance is undersized by -857 sf (26.1%) and is missing two offices; the career center is undersized. Nurse/health suite is undersized by -148 sf (16.8%) and does not meet current COMAR or MSDE guidelines The cafeteria/food service is undersized by -1,625 sf (14.9%) with the majority of that being in the student dining area. The staff lounge is undersized by -721 sf (57.7%), with only a small faculty dining room and no lounge.

Transcript of 9.1 educational program assessment - Board Docs

Howard County Public School System – Mount Hebron High School Page 9.1-1

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9.1 EDUCATIONAL PROGRAM ASSESSMENT

Gilbert Architects Inc. (GAI) conducted an educational program assessment of Mount Hebron High School during the months of March and April, 2007. This included an interview with David Brown, Principal on March 30, 2007 (copies of minutes are included in Section 5.7); a survey of the existing building on April 3, 2007 utilizing the Council of Educational Facility Planners International (CEFPI) Guide for School Facility Appraisal for High Schools; and a review of original design and existing floor plans to compare program utilization with the current High School Educational Specifications for HCPSS.

This building has a total net program area of 136,442 sf versus the educational specification standard of 171,841 sf, or a net deficiency of -35,399 sf (20.6%). There are several spaces in this building that are oversized. This includes the CR&D classroom programmed for only 500 sf that is in a large oversized classroom (+435 sf) and the Special Education Emotional Disturbances Program that is oversized by +251 sf. It may be possible to renovate these spaces to include some additional program areas that are currently deficient. It is estimated that a building addition of between 51,000 and 56,000 gsf would be required to increase the size of all program areas to meet the current ed. specs. However, increasing the size of the existing Auditorium that is undersized at this building by -1,735 sf would not be cost effective. It should also be noted that this school does not currently provide a regional program for JROTC students. If this program is not added to Mount Hebron High School, the estimated gross sf of building additions listed above could be reduced by approximately 3,000 gsf.

Mount Hebron High School had an enrollment of 1,411 students at the time of our survey with 70 total teaching stations (plus 4 portable temporary classroom units). Some of the technical resource rooms that were originally provided in this building have been converted to teaching stations due to the increased enrollments. Enrollment projections indicate slight increases over the next several years.

Overall, Mount Hebron High School received a score of 629 points out of 1,000 on the CEFPI Appraisal Guide, equating to an “average” rating. This is an indication that there are areas of improvement that should be implemented at this facility to bring it up to a “good” or “excellent” rating. A copy of the detailed CEFPI Assessment is included at the end of this section.

The manner in which spaces are actually being utilized may vary from the original design based on the discretion of the school’s administrators.

Building Program Variances

Based on the space requirements identified on the Educational Specification Comparison Chart following this list, original design drawings and on our interviews and field surveys, we have identified the following primary building program deficiencies at Mount Hebron High School (Note: variances less than 5% will not be discussed here – all data is available on summary chart on pages 9.1-4 thru 9.1-7):

� Administration is undersized by -1,070 sf (33.0%) and is missing a 4th assistant principal’s office and conference room. A security vestibule should be provided with control by the Administration reception area.

� Guidance is undersized by -857 sf (26.1%) and is missing two offices; the career center is undersized.

� Nurse/health suite is undersized by -148 sf (16.8%) and does not meet current COMAR or MSDE guidelines

� The cafeteria/food service is undersized by -1,625 sf (14.9%) with the majority of that being in the student dining area.

� The staff lounge is undersized by -721 sf (57.7%), with only a small faculty dining room and no lounge.

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� Student organization rooms (-625 sf) are nonexistent. � The student support center is oversized by +79 sf (10.0%), but is missing a Maryland Tomorrow

office (-120 sf). � There is no professional development school’s office & seminar room (-750 sf). � Career Connections is oversized by +435 sf, 87.0%. � The custodial areas are significantly undersized by -697 sf (41.2%). � The art suite is significantly undersized by -1,800 sf (35.1%) and has no sculpture studio. The

dark room is located with the media center. � The auditorium with support programs is undersized by -6,581 sf (34.2%). The auditorium itself

is undersized by -1,735 sf, but would be cost prohibitive to enlarge. There is no workshop; stage/wings are undersized; the commons/drama classroom is significantly undersized; drama storage is inadequate; and the dance studio is located at the opposite end of the building in a converted tech. ed. lab (sf counted as part of tech. ed. lab).

� The home economics suite is undersized by -1,886 sf (61.2%). The child development lab is presently used only for babysitting teacher’s children and not for instruction. There is no dedicated home economics support classroom space.

� The media center is slightly oversized and is in good condition except for the TV studio/classroom that is in poor condition.

� The music education program is undersized by -1,463 sf (23.8%). The band room is undersized. There is no piano lab, electronics lab or ensemble/music library. Storage for music is very inadequate.

� The physical education program is undersized by -4,785 sf (16.0%). There is no wrestling room and the weight room is undersized; bleachers, sound system and score board in gym need to be replaced; gym floor needs to be refinished or replaced; locker rooms and team rooms need to be upgraded; storage is inadequate.

� The science program is undersized by -2,178 sf (13.2%). The science labs were recently renovated and are in good condition except for a safety issue with a power strip that was installed in front of the old leaky windows. Seven of the nine labs however are undersized and with the increased enrollments in this school, a tenth science lab should be provided. There is no greenhouse or seminar room and support space is undersized.

� The tech. ed. program has adequate space, but one lab has been converted to a dance studio. Equipment and program need to be updated to meet current state requirements.

� The Gifted & Talented is undersized dramatically by -653sf (71.8%) and needs a full size classroom with storage space.

� The Special Education program is undersized by -2,499 sf (48.3%) and is missing 3 classrooms, OT/PT area and storage and a conference room.

� The English language arts program is undersized by -2,472 sf (20.2%). Classrooms average 758 sf. This school is missing both seminar rooms and storage is inadequate.

� The foreign language/ESOL program is undersized by -1,334 sf (26.2%), even though they have three additional classrooms due to the increased enrollments, one of which is a dedicated un-programmed ESOL classroom. Classroom sizes average only 706 sf. They are missing a seminar room.

� The math program is undersized by -1,913 sf (17.7%). Average classroom size is 753 sf. � The social studies program is undersized by -1,063 sf (10.3%), but has one extra classroom due to

increased enrollments. Classrooms average 841 sf in size. They are missing a seminar room and a technical resource room.

� Mount Hebron does not provide a regional JROTC program. � Mount Hebron does provide a regional Special Educational Emotional Disturbances Program that

is oversized by +251 sf (16.9%). � Teacher planning centers are inadequate in this school.

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Site Variances Based on the site requirements identified on the Educational Specification Comparison Chart following this report, and on our interviews and field surveys, we have identified the following primary site variances at Long Reach High School:

� Mount Hebron High School is located on a site of 40.5 acres. The minimum size recommended is 30 acres plus 1 acre for each 100 students, or 43 acres. To meet the current ed. spec. requirements, it is estimated that an additional 13 acres would be required.

� There is no clearly defined parent drop off area, creating a dangerous condition when cars enter the bus drop off or pick up areas.

� There is parking for 387 cars, 133 less than programmed. � The stadium turf is in good condition. The all weather track is in good condition, but only has 6

lanes and no straight sprint lanes. The ed. spec. calls for 10 lanes and 10 sprint lanes. Home bleacher capacity is approximately 1,240 seats (ADA accessible) versus ed. spec. capacity of 1,500. Visitor capacity is approximately 420 seats (not ADA accessible) versus ed. spec. capacity of 1,000. There are no permanent restrooms (use portable toilets). Concession building does not have a commercial hood or meet Health Department requirements.

� Ed. spec. calls for 2 multi-purpose play fields and 2 football practice fields. Currently there is only 1 field to serve both of these functions.

� There are 4 tennis courts in good condition, but 4 short of ed. spec. request for 8 courts. � There are no exterior basketball courts (4 deficient). � There is one baseball field in very good condition. A second baseball field is missing. � There is one softball field and one practice field versus the 3 programmed in the ed. spec. � There is no fitness path running around the perimeter of the site. � No outdoor amphitheater with stage. � No outdoor patio for art classes.

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9.4 FACILITY CONDITION ASSESSMENT

9.4.1 Facility Condition Assessment

FEA and PEG conducted an existing condition assessment of Mount Hebron High School on April 2, 2007. The high school located at 9440 State Route 99 in Ellicott City, MD is a 2-story building constructed in 1965. The school has been renovated in 1968, 1972, 1977, 1983 and 1999 with the Science Department renovated in 2004. Mount Hebron High School has an approximate total building area of 193,996 square feet. Observations and findings are summarized in this section. Tab 5.4.A provides a 20 year projection of repair projects. “Identified repair needs” cover years one and two, and “Term needs” cover the entire twenty year period. Tab 5.4.B contains photographs of deficiencies and representative condition photographs. The following table provides a summary of repair cost projections:

Mount Hebron High School Identified repair needs $3,425,000 Term needs (includes Identified repair needs)

$10,709,000

9.4.2 Site Systems

Summary

� Paved areas: There were four main asphalt parking lot areas along the south side of the property and a parking area along the east side of the school. Two of the four main lots are in fair condition with the easternmost lot and the portion of the western lot closest to the main entrance in poor condition. Access roads were asphalt with concrete curbing. The traffic access road and parking on the southeast and east side of the school, to include a paved area on the northeast corner of the school used for parking adjacent to the running track, was in poor condition. The exit section of roadway on the western end of the property is also in poor condition. Large areas of existing paving are in need of repairs. The southwest and south center lots are in need of seal coating, re-striping and re-setting of curb stops. Parking lot lighting appeared adequate in the easternmost and westernmost lots, but the south center lot has concrete light bases without stanchions or lighting. It was not determined whether lighting had ever been installed or removed.

� Walkways: Sidewalks adjacent to the school were concrete of fair condition with several small sections in need of replacement. Walkway paths between the school and baseball athletic fields were of asphalt and in fair condition.

� Athletic fields: Four tennis courts of asphalt with a top seal coating were in good condition without signs of pavement failure. Some minor surface damage existed (appears to be damage from cleats) on the tennis court second closest to the school. The running track was constructed of rubberized asphalt and was in good condition. Stadium bleachers for the large fields (football/lacrosse and baseball fields) were also in good condition. Fencing was noted to be in good condition at perimeter fencing and around athletic fields and tennis courts.

� Site drainage: Site drainage included a storm water drainage system and two storm water infiltration collection areas along the southern perimeter of the site that appeared adequate. One reported drainage problem exits near the stadium. The pipe outlet into the southeast collection area was partially blocked with a build up of sediment. There appears to be a small wetland area with marsh grass in the south

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east corner of the site that drains away from the tennis courts and easternmost southern parking lot. Landscaping was graded to aid in site drainage.

Identified repair needs

� We did not observe any issue requiring identified repair needs.

Repairs over term

• Paving areas: Mill and overlay asphalt paving of the west center lot that is south of the auditorium, the southeast lot -to include the access road along the east side of the building and the rear parking lot adjacent to the running track, and to the west exit road spur. This should also include correcting the drainage issue near the stadium entrance area. (7,500 SY)

• Paving areas: Crack seal, sealcoat and re-stripe the west parking lot, the centermost lot and the entrance road and circle areas. (10,500 SY)

• Paving areas: Crack seal, sealcoat and re-stripe the southwest and center east pavement parking lots. (7,500 SY)

• Walkways: Replace several concrete sidewalk sections along the south side front of the school. (225 SY)

• Athletic fields: Resurface running track on five year cycles. (3,400 SY)

• Athletic fields: Recoat and re-stripe tennis every four years. (4 courts)

• Outdoor site lighting: Based on outdoor lighting needs, replacement of previously removed (or never installed) outdoor lighting in the south center parking lot may be considered. No costs were included for this option at this time since it was not considered a repair.

9.4.3 Structural

Summary

The structural system(s) for the building consisted of concrete footings and piers with structural steel columns and concrete masonry block (CMU) walls. Floors are concrete slabs on grade. Brickwork is addressed under Exterior Elements.

Identified repair needs

No structural deficiencies were noted involving foundations or structural members.

Repairs over term

No structural deficiencies were noted involving foundations or structural members.

9.4.4 Exterior Elements

Summary

� Exterior walls: The exterior walls of the school were running bond brick masonry with a concrete masonry unit (CMU) wall backup. Previous masonry repairs were evident where penetrations or other exterior elements had been removed and in-filled. Three soldier courses of lighter colored split-faced masonry formed a band along the top of the exterior walls. Exterior insulation and finish system panels (EIFS) were also used on the façade. Pre-cast lintels were found over the majority of the windows and EIFS panels.

� Some isolated deteriorated mortar joints were observed. The overall condition of the masonry was fair. Pre-cast lintels were observed to be in poor condition. Many lintels

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were cracked and displaced from their original position in the wall. Several lintels need rapid attention to prevent separation from the building. Masonry-to-masonry and masonry-to-metal building sealants were in fair to poor condition.

� Exterior windows: Windows at the main building were aluminum single pane types. Some of these windows were hinged and operable, and some operable windows were rendered inoperable. The windows appeared to have been replacements, because of the presence of the infill EIFS panels in the space above the windows, and below the pre-cast lintels. At the newer addition, windows were aluminum double glazed and operable.

� With the exception of those at the newer addition, windows were in poor condition, with glazing also in poor condition where it was still intact. Several windows were observed to have come unattached from their frame, and could be easily pulled open in the corners.

� Exterior doors: Doors at storefronts were metal with glass windows. Other doors were painted metal insulated type.

� Doors were observed to be in fair condition. Door perimeters needed to be resealed with the exterior masonry sealant project. Door view glass needed wet-glazed in conjunction with other window glazing.

� Exterior painted metal: Painted elements were in fair condition. Exterior metal elements, such as doors and trim, need to be repainted. Paint at canopies was observed to be deteriorating and also needs repainting.

Identified repair needs

� Exterior window lintels: Remove two distressed pre-cast lintels and infill with brick. They already show significant signs of displacement and are a potential hazard. In addition, they are cracking and creating a path of moisture entry into the building.

� Exterior windows: Replace window wet-glazing. Re-attach loose windows to their frames. (8,750 LF)

� Exterior sealants: The exterior masonry sealants should be replaced due to poor condition. (6,500 LF)

Repairs over term

� Exterior wall: Perform brick mortar tuck-pointing where the mortar joints have cracked and deteriorated. (7,000 SF).

� Exterior window lintels: Remove remaining pre-cast lintels and infill with brick. (Approx. 120 each)

� Exterior windows: Replace horizontal exterior operable type windows at classrooms. (Approx. 50 each)

� Exterior painted metal: Prepare and repaint all exterior metal elements.

9.4.5 Roof System

Summary

The roof system consisted of a gravel-surfaced asphalt built-up roof membrane over the majority of the roof area. Perimeter edge conditions consisted of short parapet walls, gravel stop and base walls. The parapet walls, base walls and equipment curbs were flashed with granular-surfaced modified bitumen membrane. Drainage was provided by

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interior roof drains. Granular surfaced modified bitumen membrane and flashing had been installed on the boiler room roof, and the low roof adjacent to the auditorium.

� Built-up roofing (BUR) sections: The BUR sections make up approximately 185,000 square feet. The BUR areas were replaced around 1995. This work included the replacement the existing membrane, insulation and accessories. Minor defects were noted throughout the roof area. The observed defects consisted of exposed felts, blisters and wind scour. The exposed felts were primarily located along the gravel stop edges. Similar conditions were observed on most of the roof section. One blister was observed of the east mechanical roof section. Wind scour was observed at most corner locations. Based on the age and the observed condition, the built-up roof sections appeared to generally be in good condition with only minor defects observed. Currently, no known leaks were reported by the building maintenance staff. The estimated useful service life for these roof sections is 10 to 12 years.

� Modified bitumen sections: Modified Bitumen sections comprise approximately 1,800 square feet: The modified bitumen roof sections were installed in 1997. Minor defects in the form of granule separation from the surface of the membrane were observed. The loss of granules from the surface of the membrane may cause premature aging and deterioration. This condition was primarily observed on the roof section adjacent to the auditorium. The modified bitumen roof system located on the boiler room roof appeared to be in good condition with no minor defects apparent defects. The age of the roof sections was approximately 10 years old. The estimated useful service life for these roof sections is 10 to 12 years.

Identified repair needs

Modified Bitumen Sections: Apply aluminized coating to the surface of the modified bitumen at the roof section adjacent to the auditorium. (1,200 SF)

Repairs over term

BUR sections: Repair exposed felts; blisters and wind scour within the next year. Prolonged exposure of the existing built-up roof membrane may accelerate the deterioration of the membrane. (2,000 SF)

General: Replace sealants on roof penetrations, flashing, trim and accessories within one year and on five year cycles.

Modified bitumen sections: Replace modified bitumen roof in Year 10. (1,800 SF)

BUR sections: Replace built-up roofing beginning in Year 12. (185,000 SF)

9.4.6 Mechanical Systems

Summary

Description The facility had a central chilled/hot water plant that included two water chillers totaling 275 tons cooling capacity, two cooling towers, two gas-fired sectional cast-iron boilers having a total heating capacity of 17,228,000 Btu/hr. and 13 pumps ranging in size from 5-hp to 50-hp that provided the cooling and heating water for the seven air handling units and the approximate 107 classroom unit ventilators and approximate 19 fan-coil units that were located throughout the building. Heating water only was also provided to the four heating and ventilation units, approximate 28 unit heaters, nine reheat coils, four locker-room unit ventilators, five packaged rooftop air-conditioners that had integral direct-expansion (DX) cooling, and a split-system make-up air unit. Direct expansion (DX) only cooling (and heating) was provided by an assortment of packaged rooftop air conditioners and split-system A/C units and heat pumps. We noted 71 various exhaust fans that provided general building exhaust and were located throughout the building roof. Building system controls were typically pneumatic relay-logic controls through automatic temperature control (ATC) panels that were integrated into a building automation system based on the Johnson Controls

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JC-80 system with minimal upgrades implemented with Johnson Metasys control components. Packaged equipment had integral electronic automatic temperature control systems. Condition The mechanical systems in the building appeared generally well maintained with observable evidence of ongoing maintenance and replacement components noted, such as motor-operated control valves and damper actuators, lubricated shaft bearings, clean air filters, clean heat-transfer coils, and a general overall appearance of diligence. The range of condition was from poor to good due mostly to age. We noted replacement equipment dating back to 1993 with the most recent replacements noted to be in 2007. Additions added to the base building since its original construction in 1965, and renovations and alterations over a period of 18 years ending about 2000 have created an assortment of additional building systems at many different age ranges and remaining useful life. The 75-ton reciprocating chiller located in the main chiller mechanical room was original to the building construction but abandoned in place for ten years. Then it was restarted and placed back in service in 2005. The old building system pneumatic relay-logic controls that have been integrated into a building automation system based on the Johnson Controls JC-80 system are functional, but based on the multiple building zones and the age of the technology it is becoming difficult to adjust and coordinate building wide performance, and to obtain competent technical service on the older pneumatic controls. While not included as a project in this report since it would be an improvement project outside the scope of this existing system assessment, it would be reasonable for HCPSS to install a new building wide control system to improve both building HVAC performance and technical support levels. Observed deficiencies included:

� Evidence of an active leak at the 15-hp condensing water pump balance valve

� Evidence of an active leak at the 25-hp chilled water pump

� Locked boiler breeching barometric dampers

� Automatic summer/winter changeover controls on the auxiliary 15-hp chilled/hot water pump for the unit ventilators was defeated with the 3-way diverting valve disconnected from the Metasys control system

� The media center reciprocating chiller located in a penthouse mechanical room was abandoned in place and reportedly not used for the past five years (the media center AHU reportedly was provided chilled water form the main central plant)

� A 4-ton cooling capacity packaged rooftop heat pump dedicated to the media center was in poor condition and reportedly abandoned in place

� The Trane 20-ton cooling capacity split-system A/C unit roof-top air-handling unit had an abandoned hydronic heating coil with what appears to be an unrepairable leak with the heating water piping disconnected

� We noted eight packaged rooftop air-conditioners, two of which were heat pumps, were noted to be poor condition and overdue for replacement.

Previous reports detailing certain issues regarding HVAC performance may be temperature control or air-balance issues as we did not observe or receive any information regarding

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equipment failures leading to environmental issues. Previous reports by others mentioned the main cooling tower having a cooling capacity of 150 tons serving a 200-ton chiller. We contacted the cooling tower manufacturer and were provided performance data for the Evapco LSTA 5-125. The Evapco cooling tower was rated to cool 615 gpm of chiller condenser water from 950 F. DB to 850 F. DB at an ambient temperature of 780 WB. This equates to cooling-tower cooling capacity of 205 tons, which matches the water chiller rating of 200 tons. Also, current standards (ASHRAE 62.1-2004, Ventilation for Acceptable Indoor Air Quality) require a range of about .06 to .18 cfm/sq.ft. of occupied space in a typical educational facility; or approximately 7½ to 10 cfm of outside air per person. The building receives outside air ventilation through classroom unit ventilators, fan-coil units, central station air-handling units, and packaged rooftop air conditioners. Therefore, the ASHRAE requirement of outside air for the occupied areas of the building is approximately 34,661 cfm based on the maximum recommended .18 cfm/sq.ft., which is substantially less than the 75,717 cfm outside-air provided by the specified and/or presumed settings of the equipment outside air dampers. We believe that under current utilization, based on a reported student population of 1,428, the fresh air introduced into the building by the assorted HVAC systems is more than sufficient. We noted that the 200-ton cooling capacity water chiller was of more modern design and used the refrigerant R-134a; however, there was no refrigeration monitoring system installed. New chiller installations should meet the requirements of ANSI/ASHRAE Standard 15-1994 Safety Code for Mechanical Refrigeration. The code requirement is directed toward the safety of persons and property on or near the premises where refrigeration facilities are located using the non-CFC type refrigerants such as R-123 and R-134a, which are considered toxic. The installation should include a Pyroelectric Infrared Detector type refrigerant monitoring system. The installed system should meet the ANSI/ASHRAE 15-1994 standard describing leak detection requirements for machine room installations. Also, there was no signage in evidence that was readily seen by maintenance personnel that clearly illustrates emergency procedures regarding refrigeration contamination, which is included in the ASHRAE standard.

Identified repair needs

Install refrigeration monitoring system: Install a Pyroelectric Infrared Detector type refrigerant monitoring system. The installed system should meet the ANSI/ASHRAE 15-1994 standard describing leak detection requirements for machine room installations. Also, install signage for maintenance personnel that will clearly illustrate emergency procedures.

Note: Some items identified in “Repairs over term” have been recommended for replacement as soon as practicable due to age and condition.

Repairs over term

The 20-year study period from 2008 to 2027 will require replacement of most HVAC equipment with the possible exception of the cast-iron boilers that were installed in 1995 which have an expected useful life of about 45 years or more, and the gymnasium heating and ventilation units installed in 1994 that have an expected useful life of about 35 years. The equipment is listed based on replacement year starting with 2008 and quantities are estimates based on drawings provided and the limited physical survey. Our opinion of cost reflects in-kind replacement of existing systems including presumed scope of work for a complete “turn-key” installation.

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Equipment Qty. EUL Years

Replacement Year

Opinion of Cost - $

25-hp Chilled / 15-hp Cond. Water Pumps 2 25 2008 10,000 5-hp Chilled / 5-hp Cond. Water Pumps 2 25 2008 6,500 75-ton Chiller 1 30 2008 87,000 Central Station Air-handling Units MZ & SZ 6 35 2008 350,000 Media Ctr � 40-ton Water Chiller 1 30 2008 45,000 Media Ctr Packaged Rooftop Heat Pump 4-ton 1 19 2008 6,000 Original Classroom Unit Ventilators 29 20 2008 60,000 Penthouse 7½-hp CHW/HW Pumps 2 25 2008 7,400 Refrigeration Monitoring System 1 15 2008 15,000 Trane � 20-ton Split-System A/C Unit 1 18 2008 30,000 Carrier Packaged Rooftop A/C Units 4 to 8 tons 6 19 2009 69,000 Replace ATC and Johnson JC-80 Controls System 15-25 2009 350,000 Aux Gym Central Station Heat & Vent Units 2 35 2010 50,000 York Packaged Rooftop Heat Pumps 4-ton 2 19 2012 12,000 L-Shaped Addition Mammoth Rooftop A/C 2 19 2012 95,000 Split-System 40-ton Rooftop M.U. Air System 1 18 2016 55,000 Rooftop Heating & Ventilation Unit 1 18 2016 40,000 Carrier 7½-ton Packaged Rooftop A/C Unit 1 19 2017 12,000 Classrooms Governaire Rooftop A/C Units 2 19 2019 180,000 (2) 50-hp, (2) 5-hp, & (1) 2-hp HW Pumps 5 25 2020 35,000 ATC Air compressors & Dryers 4 20 2020 16,000 Replacement Classroom Unit Ventilators 78 20 2020 165,000 Fan-coil units 19 20 2020 35,000 200-ton Chiller 1 30 2025 115,000 200-ton Cooling Tower 1 30 2025 45,000 Aux. Unit Vent. 15-hp CHW/HW Pump 1 25 2025 6,100 Local loop 5-hp Chilled Water Pump 1 25 2027 3,600 HVAC Replacements for 20-year Study Period 1,900,600 Note: Based on industry practice we expect that the reheat coils, VAV terminal units, exhaust fans, unit heaters, and fin-tube heaters will most likely be repaired or replaced on an as-needed basis. Pneumatic ATC and JC-80 systems are presumed replaced with a current technology building automation system (BAS) and integrated into local packaged control systems.

9.4.7 Electrical Systems

Summary

Description Pad-mounted transformers provided 120/208-volt and 277/480-volt secondary services to the building. The 2,500-amp., 120/208-volt, 3-phase, 4-wire service and the 2,000 amp.,

Page 9.4-8 Howard County Public School System – Mount Hebron High School

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277/480-volt 3-phase, 4-wire service provided the main electrical service entrances, and were located in two main electrical rooms. The two independent services were sourced through multi-section switchboards, with circuit-breaker disconnects ranging in size from 70 amps. to 800 amps., and served such equipment as the HVAC equipment, general distribution panelboards, and lighting. The 120/208-volt service was installed at the time of the original building construction and the 277/480-volt service was added later for building additions. General distribution panelboards were located in corridors or electrical rooms serving such equipment as fans, lighting, and general use distribution. The general distribution circuit-breaker panelboards fed either, 277/480-volt power for equipment and lighting, or 120/208-volt power for general use. The areas served by the 277/480-volt service were provided general-use 120/208-volts, 3-phase power through approximately eight step-down, dry-type transformers ranging in size from 30 kVA and 112.5 kVA. These transformers provided a total of 525 kVA of 120/208-volt power to general distribution panelboards located throughout those areas of the facility. Emergency power was provided by two natural-gas-fueled engine-powered generators serving the two distinct electrical service areas of the building. Emergency power was sourced through automatic transfer switches. Wiring was noted to be a combination of copper wire with thermoplastic insulation inside electrical metallic tubing (EMT), armored cable (BX), and flexible metallic tubing (Greenfield). Lighting was typically fluorescent fixtures throughout with incandescent illumination in certain areas such as the auditorium and gaseous discharge fixtures in the gymnasium. Condition The electric service equipment appeared to be in good operating condition throughout the building with no reported or observable problems except that the majority of the electrical equipment was manufactured by Federal Pacific. Federal Pacific products are no longer available and their electrical components have a reported frequency-of-failure that is higher than the industry average. Historically, problems associated with Federal Pacific circuit breakers in panelboards and switchboards were noted to be false tripping, flash-over faults, and not tripping on overload. Not tripping on overload is the dangerous fault because the interconnecting wiring will “fuse out” (melt under overload conditions) and create a condition that can initiate a fire event within finished walls or enclosures. Utilization changes have created the reported need for additional power receptacles in classrooms equipped with computer work stations and the emergency generators are considered past due or replacement although still functional. Depending on the lamp type, fluorescent lamp life varies between 10,000 and 20,000 hours. Lamp life for incandescent lamps ranges from 750 to 2,000 hours. Intervals for re-lamping will depend on the operating times in the different areas. Re-lamping is generally addressed as a maintenance issue. The fixtures will typically last the life of the building. Architectural changes often result in fixture changes for aesthetics before the fixtures need replacement. Ferro-magnetic fluorescent ballasts have an estimated life of 20 to 30 years. Electronic ballasts similar to those used in compact fluorescent fixtures and those used with F32T8 lamps have an estimated service of about 15 years.

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Identified repair needs

No identified repair needs were identified for the electrical system.

Repairs over term

A preventive maintenance program of checking and inspection of all switchgear, panelboards and connections, cleaning (where required) and re-torquing electrical equipment connections should be instituted and performed every three to five years by a licensed electrician. The over-current devices should be checked for smooth operation, cleaned and lubricated as required. Fusible switch units should be checked to ensure all fuses within the switch unit are from the same manufacturer and are of the same class and rating. (It is important to note that arcing failures occur where connections have loosened as a result of thermal cycling.)

Replace electrical system. Generally, electrical systems and equipment have a typical service life of from 40 to 50 years with minimal maintenance. However, because these electrical systems were based on Federal Pacific equipment with a history of failures due to reported manufacturing short-cuts, we believe that a scheduled replacement of the systems with Federal Pacific thermal circuit breakers be scheduled for replacement within the next five years.

Replace two emergency generators. The two natural-gas engine-powered emergency generators and their associated automatic transfer switches typically have an expected useful life of about 35 years and are reportedly past due for replacement and should be scheduled for replacement within the next five years.

9.4.8 Plumbing Systems

Summary

Description The domestic water service entrance fed distribution through the building via copper piping believed to be type L. Two replacement 750,000 Btu/hr. gas-fired domestic water boilers installed in 1997 provided domestic hot water together with a 650-gallon capacity insulated storage tank for the restrooms, janitor sinks, and showers. Two 1-hp local loop pumps circulate hot water between the boilers and storage tank and an �-hp in-line pump provided general circulation to the building. Additionally, an 80-gallon capacity, 18 KW, electric domestic water heater installed in 2006 provided point-of-use domestic hot water for other areas and was located in the English Department storeroom. Toilets and urinals were typically vitreous china flush-valve types. Lavatories were noted to be cantilevered vitreous china. Sanitary piping and vents and storm water piping was noted to be cast-iron. Condition Overall, the domestic water systems in the building appeared to be in fair to good condition. No leaks or other problems were observed or reported other than reported utilization changes requiring additional toilet facilities. There is a low probability that water quality may be compromised because of past use of lead/tin alloy solder during assembly of the domestic water piping system, but drinking fountains have reportedly been addressed and tested. However, no single situation or activity causes lead to leak from the plumbing into drinking water. Rather, it is a combination of factors contributing to corrosion. Such factors include

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water pH, water velocity, temperature, alkalinity, chlorine levels, condition of the plumbing, and the amount of time water is in contact with the plumbing. Public water systems routinely undertake activities to control corrosion within their water systems. These treatment activities lead to a protective coating of minerals being formed on the inside layer of pipes, thereby insulating the drinking water from lead. The HCPSS conducted water tests for lead at Mt. Hebron HS in 1989, with the exception of several water fountains (removed/replaced) the school was compliant with EPA standards. The school system reportedly samples for lead in the water following all new construction/renovation that impacts the plumbing of a school. Samples from the construction completed at Mt. Hebron in 1999 complied with EPA standards. The observable piping appeared to be in good condition with no evidence of leaks or reported problems. A pipe tunnel running inside the building has limited access for maintenance and reportedly the piping systems within the tunnel were insulated with asbestos containing materials (ACM). Commercial buildings built before 1976 often contain ACM in the form of thermal system insulation or spray-on fireproofing. These buildings should have an asbestos survey completed in areas that may have suspect materials. The information gained from the survey should be incorporated in a building Operations & Maintenance Plan that details where ACM is located. This information is then used as part of the training required of the building maintenance workers (employees who may come in contact with ACM).

Identified repair needs

No identified repair needs were determined for the plumbing system.

Repairs over term

Domestic water piping and drainage system upkeep. This system has a life cycle of about 40 to 50 years, but performance typically far exceeds this and can reach 70 years depending on water treatment and the piping environment. Future repairs should be manageable by the maintenance staff over the near term and no major expenditures beyond routine maintenance are expected except for the tunnel piping. Replacement should only be considered if recurring piping maintenance requirements become excessive and cause system downtimes.

Asbestos survey and possible removal project. There were problems reported regarding the tunnel piping limited access and requiring an extensive engineering study including an ACM survey and remote observations using a closed-circuit television camera. Should the investigation reveal problems with overall deterioration and active leaks, then ACM abatement would be required before any attempts at repair or replacement are considered. The possible alternative under consideration would be to install a replacement piping system outside of the tunnel and abandon the tunnel piping in place.

Replace domestic water boilers. The domestic water boilers will reach the limit of their 18-year expected useful life by the year 2015 and should be scheduled for replacement.

Replace electronic domestic water heater. The electric domestic water heater will reach the limit of its 15-year expected useful life by the year 2021 and should be scheduled for replacement.

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9.4.9 Conveying Systems

Summary

The building contained one (1) hydraulic passenger elevator. The elevator can only be operated by key switch, and it is reportedly rarely used.

Recommendation for full modernization is primarily based on expected useful life of the equipment. ADA recommendations are based on ADA requirements. Most general, safety, and maintenance recommendations are based on current code (parts of ASME A17.1 (Part 8)) as required. The State of MD currently follows ASME A17.1b-2003.

ASME A17.1—1981 was effective April 22, 1982 - May 30, 1983, then ASME A17.1b—1983 was effective June 23, 1984.

ASME A17.1a—1985 was effective October 15, 1985- April 14, 1986, then:

ASME A17.1b—1985 was effective until October 30, 1986, then:

ASME A17.1c—1986 was effective until May 30, 1987.

The equipment profile is summarized as follows:

Elevator Floors Served Duty Speed

(fpm) Capacity

(lbs) Age RUL

No. 1 1-2 Passenger 125 2500 23 yrs 5 yrs

� The elevator systems were installed in 1983 and have not since been fully modernized, although the unit has a new, non-original valve and new door equipment has been installed. The equipment was manufactured by Otis Elevator and is from the LRV III series of equipment. The industry standard useful life for a hydraulic cylinder is 15 years.

� The elevator has a spring buffer system, and the hoistway is sprinklered. The pit area appeared clean and dry.

� The elevator machine room was located on the first floor of the building and contained all of the elevator equipment on one level. The elevator equipment was located on the right hand side of the room, with the left hand side of the room occupied by the building's data communication system rack. All non elevator related items should be removed to comply with code. The code also restricts access to the room to only “authorized personnel” and someone working on the phone system would not meet that requirement.

� The elevators did not have fire recall service and did not have a source of emergency power/battery lowering device. A fire extinguisher with a current date was present in the machine room and was mounted as required by code.

� A current operating certificate was mounted in the elevator cab at the time of our site visit.

� The elevator is reportedly under a full maintenance contract with Schindler Elevator. According to data in the machine room, the elevator was last inspected and had the annual pressure test conducted by Schindler Elevator on 9/5/2006, and the last full load test on 8/12/02.

� According to paperwork in the machine room, on 8/14/2006 the mainline disconnects were tested (by ARK Systems) and the form indicates that they did not function as required.

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There was no follow-up information available, nor was any more detailed information available.

Condition � The elevator machine room was being maintained in below average condition. The room

was generally dusty, and there were scraps of wire and cable lying around the room. Material Safety Data Sheets were not present in the machine room. Log books were present in the machine room, with the last routine exam noted as occurring on 7/19/06, followed by the testing on 9/5/06, and with no further preventive maintenance indicated. No check charts were present.

� Wiring diagrams and spare parts (limited) were not properly stored in a metal cabinet.

� The lighting in the machine room was adequate. The machine room was not air conditioned to control temperature and humidity.

� The machine room door was arranged to self-close and lock as required by code, but the door was not labeled with a fire rating as required by code.

� The machine room had one sprinkler and one heat detector. We were not able to verify the presence of a shunt trip device.

� The elevator cabs and fixtures were in average condition. The elevator systems were not ADA-compliant. Specifically, the in-cab emergency telephone was princess-style, the door jamb Braille was located at an incorrect height, there was no Braille on the car operating panel, there were no directional signals, there was no car position indicator, and the cab lighting was not 5 ftc at the sill.

� The door protection was an infrared device.

� The door operation, ride quality, and overall performance were initially below average, although performance improved as the car was put into operation. The car misleveled by approximately 2" when the door was first opened. These performance deficiencies appeared to be largely a function of lack of use, as hydraulic systems lose some performance when not used regularly. The unit must level to within 1/4" whether hot or cold; this could be remedied by addition of a tank heater.

Identified repair needs

Obtain MSDS and Maintenance Logbooks. Ensure that Material Safety Data Sheets and current maintenance log books (including oil usage log) and check charts are available in each machine room. (This should be covered by the elevator maintenance contract).

Clean out machine room. Remove all non-elevator related items from elevator machine room, and restrict access to authorized (elevator) personnel to comply with code.

Install tank heater to keep oil from getting cold; this will improve performance and safety when unit has been inactive.

Perform necessary ADA upgrades to bring system into compliance with ADA requirements.

Repairs over term

Fully modernize elevator system in 2012 due to age and obsolescence. The industry standard life cycle for a hydraulic cylinder is 15 years.

Install full-height infrared safety edge door protection.

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9.4.10 Fire & Life Safety Issues

This section addresses various issues with means of egress, structural fire protection, fire protection systems, fire alarm and detection systems, as well as any other code deficiencies as they existed in the high school building. Services did not include review of any environmental issues, an asbestos/lead based paint survey, or a mold survey. This report also does not address the American with Disabilities Act (ADA) in whole, which may also have a significant impact on any changes made to the building. However, general ADA criteria as they relate to fire alarm systems are noted for information purposes. The code items identified in this report are based upon visual observations made at the building on April 3, 2007.

The applicable building code referenced in this evaluation is the Maryland State Fire Prevention Code, 2007 Edition, which incorporates by reference NFPA 1 Uniform Fire Code (2006 Edition), NFPA 101 Life Safety Code (2006 Edition) and certain requirements of the International Building Code (IBC). Additionally, the 2006 Howard County Amendments to the Maryland Building Performance Standards (MBPS), as prescribed in COMAR .05.02.07.01 thru .09, include the 2006 International Building Code, again with state amendments.

As a general note, existing conditions are grandfathered pending any new rulings by the Authority Having Jurisdiction (AHJ), usually the Fire Marshall. A change could be directed if a degree of hazard develops that would make it prudent to upgrade or extend an existing system. Any future additions would normally not trigger a requirement to upgrade fire protection systems in existing spaces if firewalls were installed or already in place between the existing spaces and the new addition.

Fire Protection: Sprinklers/Suppression

Description

The school building is partially protected with a wet pipe automatic sprinkler system. The sprinkler system is supplied by a 6-inch dedicated fire service water main connected to the city water supply. The static system pressure at the time of inspection was observed to be approximately 65 psi. There was no observed check valve/backflow preventer assembly on the incoming water service. The main control valve is a non-electrically supervised OS&Y valve that was chained and locked in the open position. The flush wall-mounted fire department connection was located in an accessible area on the southwest corner of the building.

A wet chemical kitchen hood suppression system is installed in the kitchen that provides automatic suppression for the fryers and grille area under the kitchen exhaust hood. The system manufactured by Ansul is an R-102 Wet Chem. type and installed on the south wall of the kitchen. Inspection, testing and maintenance appear to be current and up to date with the most recent inspection having been performed in October, 2006.

Fire extinguishers were generally of the 10-lb all-purpose dry chemical type, however there were some 2½ gallon pressurized water type extinguishers identified. Most extinguishers were located in the corridors and throughout the office spaces.

Observations

� The wet pipe type automatic sprinkler system that is believed to be installed throughout the entire building is not as complete as thought. There are several areas that have been identified as being unsprinklered.

� There are a large number of automatic sprinklers currently installed that have exceeded their normal life expectancy, which is 30 years and should be replaced with new.

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� The kitchen hood suppression system currently in service appears to be in good working condition and is configured appropriately for the hazard being protected.

� Sprinklers in the older portions of the building were of the older solder link and lever type with a date stamped on the deflector of 1971. This results in sprinklers at least 36-yrs old. The life expectancy of sprinklers is 30 years at which time by code additional testing must be done on an annual basis to ensure the sprinkler will operate as intended.

� Other sprinklers in the building consisted of solder link and lever however were newer (within the 30 year window). Other sprinklers were of the glass bulb type and were identified as quick response type. There were instances where quick response type heads were adjacent to the older solder type (non quick response type). This arrangement is not allowed per code and must be rectified.

� The auxiliary drains for low point drainage of the system that were identified were not properly labeled as such.

� At Room 422 the sprinkler was observed to be too far up into the ceiling space thus not allowing full water discharge upon sprinkler activation.

� Inside Room 119 were wood constructed closets that were not adequately covered by the existing sprinkler system.

� Immediately outside of the media center was a sprinkler with a bent/damaged deflector.

� In mechanical room #2 (entry from outside/underneath the band room) there were sprinklers that were installed too far below the ceiling. Code allows up to 22-inches below certain types of ceilings, however these sprinklers were outside of that specified range. In addition, inside this room were HVAC ducts greater than 48-inces wide that did not have sprinkler coverage below them. Code requires sprinklers below obstructions that are 48-inches wide or wider.

� The main mechanical room near the auditorium was not fully sprinklered.

� Although not required, it is recommended that the 2½ gallon pressurized water fire extinguishers that were observed be replaced with 10# all purpose dry chemical type extinguishers. This will allow for ease of maintenance, consistency in testing, and prevent unintentional application of water onto electrical or flammable liquid fires where a Class B or C extinguisher is required. On the majority of fire extinguishers the inspection tag is confusing to read. Dates have been scribbled in with a pen instead of being punched. A new tag should be issued each time service/inspection is performed.

� The kitchen hood wet chemical suppression system appears to be in good working condition. The inspection tag is confusing to read. Dates have been scribbled in with a pen instead of being punched. A new tag should be issued each time service/inspection is performed.

Fire Protection: Standpipes

� A standpipe system is not present in the building.

Fire Protection: Alarms

Description

The building is provided with a conventional non-addressable alarm/signaling system. The fire alarm control panel (FACP) is an older outdated unit that has apparently been expanded over the years and is currently identified as being manufactured by Ellenco/Siemens Pyrotronics. The panel is located in the electrical switchgear room near the Gymnasium on the First Floor. There are no additional remote control panels (RCP). The FACP monitors the

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suppression system for water flow and valve supervision, manual pull stations, spot type smoke detectors, spot type heat detectors, and duct smoke detectors for HVAC shutdown. The fire alarm signals are sent to the Howard County 911 Center via an existing auto dialer manufactured by Silent Knight. The fire alarm annunciator panel manufactured by Ellenco is located at the First Floor main entrance lobby vestibule. The FACP is provided with emergency power backup via four 6V/10 Ah batteries.

Audible notification appliances consist of fire alarm horns located throughout the building, in exit stairs, and at the exits. Visual notification appears to be located throughout the building and consists of a combination of flashing red lights and strobes. The visual devices are installed in most common areas in the building and along means of egress throughout classroom and office spaces. It was not able to be determined if the strobes flashed in a synchronized manner. Single action manual pull stations are provided at each exterior exit and at entrances to exit stairs on each level. Pull stations in public areas are provided with clear Plexiglas covers with integral local alarms manufactured by STI (Stopper model).

Smoke and heat detector coverage is limited. A single heat detector is located in the elevator machine room on the first floor. Although not visually verified, documentation provided by HCPSS indicated that there is no smoke or heat detection in the elevator shaft. Water flow switches were provided at each sprinkler zone control assembly. Sprinkler control valves were both electrically supervised and manually chained secure (boiler room).

The building HVAC system is provided with duct smoke detectors.

Annual fire alarm system tests have been performed and maintenance and testing records are kept on site. Fire alarm maintenance and testing records were available for review and were current.

Observations

� The existing conventional building-wide fire alarm system, while currently performing satisfactorily, is outdated and in need of replacement with a new addressable system.

� A few areas require modifications to the physical placement of manual fire alarm pull stations and visual notification devices.

� The FACP appeared to be installed under a prior building renovation (the exact year could not be determined). The system utilizes old style relays (i.e., fire door release) and replacement parts are quickly becoming non-existent. Current maintenance technicians report that parts have to be cannibalized from other systems in the County. It is evident that the system has outlived its useful life.

� Partial visual notification in the building was provided; some areas by ADA-compliant strobes, some areas by strobes and some areas by flashing lights with red lenses. Coverage was not consistent.

� There were areas of the building that were not covered by visual notification devices. The majority of these locations were at the ends of corridors, and within restrooms primarily in the older sections of the building. All common and public areas in the building are to be provided with ADA-compliant strobes. The common and public rooms identified as not having visual notification coverage shall be provided with strobes to provided consistent visual notification coverage throughout the building. Strobes are required to be placed within 15-ft of the ends of corridors (including where fire doors automatically close at the mid-point of corridors). The boiler room and the mechanical room beneath the band room should be provided with additional visual notification coverage due to high noise environments.

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� Several classrooms contained strobes that were observed installed at a height of up to 105 inches above the finished floor. Strobes should be installed no closer than 6 inches from the ceiling or a minimum of 80 inches above the finished floor, whichever is lower.

� Manual pull stations are required to be located at a maximum height of 48 inches when only front wheelchair access is provided. All other arrangements required pull stations to be located no higher than 54 inches above finished floor. Some pull stations were observed to be located up to 62½ inches above the floor.

� There were a few manual pull stations that were not installed within 5-ft of an exit door. This specifically occurred in the newer classroom wing on the first floor.

� The majority of the manual pull stations throughout the building are missing the glass/plastic breakaway rod which keeps the handle or actuating mechanism from being inadvertently activated.

Fire Protection: Structural

Description

The building is considered to be a Mixed Use Group Occupancy with Educational Use Group (E) being the primary occupancy with Assembly Use Group (A) being secondary. The building construction type appeared to be of Type IA construction, which was characterized by protected steel and concrete construction. As such, the building height and area limitations were based on the more restrictive of Use Groups E with Type 1A construction. Based on the applicable codes the building is considered code compliant for height and area.

In general, the structural components of the office building appeared to meet fire protection code requirements for a building of its height and use. Penetrations into exit enclosures were limited to exit doors, sprinkler piping and other equipment (e.g. stair lighting, fire alarm) serving the exit stair. No non-compliant penetrations into exit stairs were observed.

Observations

� There were no major issues identified with regard to the building’s existing structural fire protection features. Minor issues have been identified and are included in this section.

� Exit stairs and the elevator shaft appeared to be enclosed in 2-hour fire rated construction with 1-1/2 hour fire rated opening protectives as required by MBPS, unless noted elsewhere in the report.

� Vertical and horizontal penetrations through fire barriers were observed in several mechanical/electrical spaces throughout the building, primarily in the boiler room near the auditorium. The horizontal openings created by the various electrical conduits and steam/water piping are required to be fire rated for minimum 2 hours of fire resistance. The unsealed horizontal and vertical penetrations compromise the fire resistance rating of the barrier.

Fire Protection: Means of Egress

Description

The building is provided with four enclosed exit stairs, three of which discharge directly to the outside. All four stairs serve only the first and second floors with discharge being on the first floor. The stairs were remotely located and the clear width ranged from 65 inches to 71 inches wide. Handrails were provided on both sides of the stairs in all four stairwells. The stair doors provided a minimum clear width of 34½ inches per door leaf.

Emergency lighting in the building consisted of two emergency generators, both 45 kW rated. The generators provided emergency power for selected overhead lighting, exit stair lighting, and exit signs.

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Exit signs consisted of LED type and were located above each exit, at each exit stair entrance and along the paths of egress in the entire building. All observed exit signs were illuminated and operational.

Observations

� There were no major issues identified with regard to the building’s existing means of egress arrangement. The building is provided with adequate routes of travel and a sufficient number of exits. Overall, the condition of the exits is good and the exit capacity appears adequate.

� The building contained handrails that were not installed in accordance with MBPS requirements for height. Specifically, along the ramp to the auditorium. MBPS requires handrails to be located a minimum 34 inches and a maximum of 38 inches above stair tread nosings or finished surface of ramp. The handrail in this instance was measured to be 31 inches in height.

� The existing emergency generators are old and should be replaced with new. Discussions with HCPSS personnel indicated that maintenance and general upkeep of the generators is time consuming and repairs are more frequent than necessary. This item is discussed in the MEP (electrical) portion of this assessment.

� The fire resistance rating on the stair fire doors could not be determined due to the rating plates on the doors and frames being either painted over or covered by a continuous piano type hinge. All openings into rated shafts serving less than four stories are to provide a minimum 1 hour of fire resistance.

� A large amount of miscellaneous storage was found in the main boiler room limiting the required egress with to below Code minimum in some locations. The National Electric Code (NEC) prohibits the storage of items within rooms containing electrical equipment, as this room does. Additionally, a communications equipment rack containing IT equipment was observed in the elevator machine room. This room must be clear of any and all items not directly related to the functions of the elevator.

� The exit signs inside Room 420 did not appear to be lit when normal power in the room was off. Additionally, in the corridor outside Room 119 additional exit signs are required at the intersection to direct occupants to two distinct exit paths. Exit signs above automatic closing normally held open fire doors should also be installed where deficient.

Fire Protection: Smoke Control

� A smoke control system by definition is not present in the building. The main air handling units are equipped with duct smoke detectors in either or both the supply and return ducts which activate to initiate fan shutdown.

Identified repair needs

Seal wall penetrations. Seal all horizontal penetrations through the walls of the Boiler Room and in the floor of the boiler room and adjacent storage rooms with a listed through penetration fire stop system. All horizontal penetrations through electrical closets are required to be properly sealed with a fire stop system listed for minimum 2 hours of fire resistance. (NFPA 101; 8.3.5.1)

Remove stored material. The storage can be removed and/or relocated to an appropriate location in-house by HCPSS personnel at a minimal cost. (Recommendation vs. requirement)

Relocate communications rack. The communications equipment rack containing IT equipment that was observed in the elevator machine room must be relocated. (ASME A17.1a; 2.7.2.1)

Page 9.4-18 Howard County Public School System – Mount Hebron High School

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Exit Signage. Install additional exit signs in the corridor outside of Room 119 and repair of the existing exit signs inside Room 420 (NFPA 101; 7.10.1.2)

Replace sprinkler system. The school building should be fully protected throughout by an automatic sprinkler system. Sprinkler coverage should also be extended to the rooms and areas identified in this report. (NFPA 101; 15.3.5) Additionally, all old style solder link and lever type sprinklers should be replaced with new quick response type sprinklers. (NFPA 25; 5.3.1) This involves approximately 60% of the building.

Install strobes. Various areas within the building were lacking strobe coverage, to include entire sections of the building (that had only flashing red lights). All common and public areas in the building are to be provided with ADA-compliant strobes. The common and public rooms identified as not having visual notification coverage shall be provided with strobes to provided consistent visual notification coverage throughout the building. (NFPA 72; 7.5.7.6)

Manual pull stations. Relocate at least two manual pull stations to within the code-required 5-ft of the exit door (NFPA 72; 5.13.7), lower approximately 8 observed pull stations that were observed to be to high above the finished floor (IBC; 907.3.2) and re-install the break-away glass/plastic rods in approximately 75% of the observed pull stations throughout the building (NFPA 72).

Repairs over term

Replace Inspection Tags. Inspection tags on fire extinguishers and the kitchen hood suppression system should be replaced and a new procedure implemented by the inspection group such that only hole punches should be used to mark when an inspection occurred. This will eliminate confusing tags where the dates have been scribbled in with a pen. (NFPA 10; 7.2.4.4)

Replace 2 ½ gallon pressurized water fire extinguishers. We recommend the replacement of all 2 ½ gallon pressurized water fire extinguishers with new 10 lb all purpose dry chemical type fire extinguishers (not a requirement).

Replace fire alarm system. Replace the existing building-wide fire alarm system with a complete new addressable voice alarm/detection system in the next 1 to 2 years. Included within this recommendation is the relocation of (demo and provide new) the several observed strobe devices currently installed too high above the finished floor. (Not a requirement, this is a recommendation is based on age of system)

Upgrade ramp handrail. The existing ramp handrail on the ramp down to the auditorium does not meet code under current code requirements. Existing exit handrails may be allowed as long as no major renovation, change of occupancy or additions to the building take place. If any of the above changes do occur in the future, the local code authority (Howard County/State of MD Fire Marshal) may require the ramp to be upgraded to meet current code requirements. (NFPA 101; 7.2.2.4.1)

9.4.11 Interior Finishes

Summary

� Floor coverings: The interior of Mount Hebron High School consisted mainly of vinyl floor tile in hallways and classrooms, and carpeting in classrooms and offices. Floor conditions were generally fair to good. Vinyl floor tile is in good condition, carpet is in fair condition. Restrooms floors were almost exclusively ceramic tile.

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� Wall coverings: Interior walls were painted CMU block and painted drywall. Original area hallway walls had ceramic tile wainscots to about the 4 foot high level. Many areas have damages tile and there are numerous mismatched tile colors where past repairs have been made. Restroom walls had combinations of CMU block and ceramic tile. Paint conditions were good.

� Ceiling systems: The majority of interior ceiling systems are suspended grids with either 2 x 2 or 2x 4 foot drop in tiles. Some drywall ceilings exist in restrooms and locker rooms. Music rooms and the auditorium have acoustical features and tiles. Ceiling tiles were generally in fair condition.

� Interior lighting: Interior lighting is almost exclusively fluorescent lighting fixtures.

� Interior doors: Doors are in fair to poor condition depending on the area within the school. Many wood doors in original areas do not provide fire protection barriers because of large return air grates in their lower half. Classroom doors hardware is functional but is not ADA compliant.

Identified repair needs

� No immediate major repairs are required at this time to interiors.

Repairs over term

� Renovate hallways. Cover or replace existing wainscot tile in hallways (13,500 SF) � Repaint interior. Repaint interior wall surfaces throughout the school. � Replace carpets. (65,000 SF) � Refinish gym floor. � Replace floor tile. Partial (20,000 SF) � Replace ceiling tile. Replace ceiling tiles in phases. (10,000 SF per cycle) � Renovate locker rooms. Renovate the boys and girls locker rooms. � Renovate restrooms over the next five years (6 sets of boy and girls restrooms)

9.4.12 Accessibility Issues

Only cursory reviews of accessibility items were included in this effort. Access routes from parking lots to sidewalks require crossing the school access car travel lanes. Interior door hardware is not ADA rated in almost all areas. Many restrooms have grab bars in one toilet stall per restroom, but most do not provide enough access area, stall space or ADA sinks. Accommodations have been made in one to two restrooms at the school. ADA signage throughout the facility was poor or non-existent. An existing ramp on the first floor should have handrails on each wall. Noted ADA issues for fire/life safety and elevator upgrades are addressed under those respective sections.

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