Application Checklist for New Detached Accessory Buildings ...

Community and Economic Development Department 1525 BROADWAY ST | PO BOX 128 | Longview, WA 98632

360-442-5086 | mylongview.com

Application Checklist for New Detached Accessory Buildings Over 200SF (Garage, Shop, etc.)

Permit/Plan Review Application (Master Permit Application)

Application included in this packet or can be found online here:

https://www.mylongview.com/170/Forms-Handouts

Residential Site/Plot Plan (See Specifications for Right-of-Way Permit Application)

Specifications can be found on cover sheet of “Residential Plot Plan” document

included in this packet or found online here:


Stormwater Submittal Form/Worksheet

Form located within this packet

Use the worksheet to determine project category: Minor, Small or Major

Stormwater Project Form for the Appropriate Project Category

Category is determined by using the Stormwater Submittal Form/Worksheet

Minor Project Form (500sf-1,999sf new/replaced impervious surface)

Small Project Form (2,000sf-4,999sf new/replaced impervious surface)

Major Project (5,000sf+ new/replaced impervious surface; No form –

engineering will be required)

Minor Project Form and Small Project Form included in this packet; You will only

need to submit one of the two forms as determined by the Stormwater

Submittal Form/Worksheet.

2 Sets of Full-Size Plans with Engineering (as required)

Details about specific plans which may be required can be viewed on PAGE 2 of

the Residential Submittal FAQ & Guidelines document which is included in this

packet and can also be found online here:


*Washington State Energy Code Prescriptive Worksheet*

*Not typically required unless building is to be heated, contact us for more info*

Can be printed onto the plans or provided separately

Worksheet and instructions can be found here:

http://www.energy.wsu.edu/buildingefficiency/energycode.aspx

https://www.mylongview.com/DocumentCenter/View/202/Master-Permit-Application-PDF

http://www.mylongview.com/170/Forms-Handouts

https://www.mylongview.com/DocumentCenter/View/199/Residential-Plot-Plan-Right-Of-Way-Permit-Application-PDF


https://www.mylongview.com/DocumentCenter/View/208/Residential-Building-Permit-Requirements-PDF




Permit/Plan Review Application

Building/Plumbing/Mechanical/Electrical/Fire Life Safety

Community Development Department, 1525 Broadway, P.O. Box 128, Longview, WA 98632 360.442.5086/Fax 360.442.5953

All Applicable Blanks Must Be Filled In. Use INK OR TYPE – DO NOT USE PENCIL PROPERTY INFORMATION

Project Address: Suite # Parcel #:

APPLICANT INFORMATION (info for person signing application)

Applicant/Authorized Agent: Email Address:

Mailing Address: City: State: Zip:

Daytime Phone: Cell/Alternate Phone:

PROJECT PROPERTY OWNER INFORMATION

Property Owner: Email Address:



CONTRACTOR INFORMATION OR OWNER AS CONTRACTOR–Note licensed contractor’s info or state if owner is to do work.

Contractor’s Name or Owner: Email Address:



City Business License # UBI# State Contractor License # Exp. Date:

TYPE OF PERMIT ‐ Check the type or types of permits you are applying for: RESIDENTIAL Building FIRE/LIFE SAFETY

COMMERCIAL Electrical * Fire Sprinkler

Plumbing # fixtures__________ Fire Alarm

Mechanical # of units ________

Other

DETAILED DESCRIPTION OF PROJECT (Details/specifics about what you want to build, plumb, wire, install, etc.)

Water Provided By: City of LV_____ PUD_____ Other______ Sewage Disposal: City of LV______ BHSD_______ Septic_______

Will any work be done in the public right‐of‐way: (circle one) YES NO # sets of plans submitted: ________

PROJECT INFORMATION

Valuation of Complete Project (Pre‐ Tax) $ Square Footage: Number of Stories:

Amount of Cubic Yards of Grading/Filling Associated with Project: # New/added Parking Spaces:

Existing Amount (sq ft) of Impervious Surface: New Amount: Total Amount:

I hereby certify that I have read and examined this application and know the same to be true, accurate and complete under penalty of perjury by the laws of the State of Washington.

APPLICAN’TS SIGNATURE _______ ___ PRINTED NAME______ _______ __________ DATE _______ _ _ Master Appl.June 2014

*Theelectricalpermitcanbeissuedonlytothepersondoingtheelectricalwork.

Residential Building Residential Building Residential Building Residential Building PPPPermitsermitsermitsermits

Community Development Department �� 1525 Broadway, P.O. Box 128 �� Longview, WA 98632 �� 360.442.5086/Fax 360.442.5953

RESIDENTIAL BUILDING PERMITS – FREQUENTLY ASKED QUESTIONS

Why do I need a permit? The purpose of a permit is to ensure that your structure will be built in a safe manner and in accordance with the requirements of the Building and Zoning Codes. This provides you with a reasonable assurance that the building will be safe for all who will use the structure now and in the future.

Do I need more than one permit? Separate permits will be required for connections to utilities and work in the public right-of-way (sidewalks and curb cuts for driveways). Separate permits may also be needed for electrical work, mechanical work and plumbing work if that work is not combined with the building permit.

How long will it take to have my permit approved? Permit approval usually takes about two weeks. Times may vary depending upon the complexity of the project and time of year.

How long is my permit good for? Permits will expire if work is not started within 180 days after the issuance of the permit or if no inspections are requested for a period of 180 days. If you are unable to keep the progress of your project going you may submit a written extension request.

What inspections will be required? Some of the typical inspections that are required for a project are: sewer line, footings, foundation wall, underfloor, shearwall, rough-in plumbing, rough-in mechanical, rough in electrical, electrical service, framing, insulation, sheetrock nailing and a final inspection.

How do I schedule an inspection? Call the Inspection Request Line at 360-442-5090. You will be asked for the address of your project, the permit number, type of inspection and contact information. Typically requests made prior to 8:30 AM can be done that same day.

What codes does the City of Longview use? • Longview Municipal Code Title 16 – Building and Construction

• International Residential Code, Uniform Plumbing Code, National Electrical Code Washington State Energy Code, Washington State Indoor Air Quality Code

• Longview Municipal Code Title 19 – Zoning

What do I do if I have questions about the code? Inspectors are generally available in the office for questions from 8:00AM to 8:30AM, 1:00PM to1:30PM and 4:30PM to 5:00 PM. You may also contact our inspectors by phone and leave a message if they are not available. We try to return all phone calls within 1 business day.

Do I need an architect or engineer to design my plans? Not if you can meet the prescriptive requirements of the code. Buildings that exceed the prescriptive limitations will need to be designed by an architect or an engineer. In addition, some site conditions may require engineering of the site and/or foundations to ensure that the structure is situated on the site in a safe manner.

Rev. 5/08

Do not submit with application, for information only

What documents will I need to submit when I apply for my building permit? Along with a completed Building Permit Application and a City Utilities Application, two complete sets of building drawings need to be submitted. Each page of the drawings shall include the address and the name of the project. In addition, drawings shall be drawn to scale, fully dimensioned, done in a professional manner (pencil and ink drawings will not be accepted – blueprints or photocopies are required) and shall include the following sheets and information:

1. A Foundation Plan including the following information:

• Dimensions of the footing and the foundation wall.

• Details of the reinforcement in the footing and the foundation wall.

• The size and location of all spread footings supporting point loads.

• The location and size of the crawl space access.

• Details of the ventilation for under-floor spaces.

• Foundation walls exceeding nine feet in height will be required to design by a Washington State engineer.

2. A Floor Plan including the following information:

• The location and type of braced wall lines and braced panels. (See chapter 6 of the International Residential Code for prescriptive bracing requirements.) If your building does not meet the prescriptive bracing requirements of the International Residential Code a designed lateral-force-resisting system will be required for your building. Calculations stamped by a Washington State engineer or architect will need to accompany the designed lateral-force-resisting system.

• The location of all source-specific ventilation fans and their CFM ratings.

• The location and type of all mechanical equipment (furnaces, heat pumps, etc.).

• The location and type of water heater.

• The location of all plumbing fixtures.

• The sizes of all columns.

• The sizes for all window and door headers.

• The details of the required fire separation between the garage and house.

• The details for the protection of mechanical equipment located in garages.

• The locations of all smoke detectors.

• The location, size and type of all egress windows.

• The location of all required tempered windows.

• The location and size of the attic access.

• The locations and types of any fireplaces.

3. A Floor-Framing Plan that includes the type, size, spacing and location of all joists, beams, posts, bearing walls and bearing pads. If you are using an engineered floor system (TJI’s, BCI’s, etc.) it must be accompanied by a plan designed by an individual certified to do such designs.

4. Exterior Elevations of all four sides of the structure.

5. A Roof-Framing Plan that includes the type, size, spacing and location of all trusses, rafters, beams, posts and bearing walls. If you are using trusses a layout showing all truss locations will be required.

6. Cross Sections that include the following information:

• The size and type of all materials to be used.

• The rise, run and headroom clearance of the stairways.

• The height, location and details for all required handrails.

• The height, location and details for all required guardrails.

• Details for masonry fireplaces including the size, type and spacing of all materials to be used.

• Details for Energy code compliance. Be sure to include glazing percentages, U-values for doors, U-values for windows and the R-values for the insulation in the floors, walls and ceilings.

7. A Grading Plan

8. A Site Plan (Follow the instructions on the City of Longview site plan form.)

This is a general guideline for submittals. More information may be required after the review process. Rev. 5/08


1. The property owner’s name and phonenumber, the property’s legal description(plat, lot, block),and the site’s address.

2. The map scale whenever possible. Ascale of 1” = 20’ is typical, but others 1/8” =1’ for example, is also acceptable.

3. A north arrow indicating the northerlydirection.

4. All property lines, all right-of-ways,all easements (utilities, access, etc.),and site dimensions. Show the distancesbetween buildings, and from buildingsto all property lines.

5. All streets and alleys, with street names.Show all existing and/or proposeddriveways. Include surface types (asphalt,concrete, chipseal, gravel) and drivewaywidth at curb and right-of-way.

6. Identify each building by its use (garage,residence, etc.). Include decks, retainingwalls, and the like.

7. Show clear distinction between the existing building & driveways and any proposed addition/changes. Show all curbs, sidewalks and drainage facilities. Also show any buildings to be demolished.

8. Show all power poles, fire hydrants, trees, shrubs, landscaping, mail boxes, water meters, catch basins, sewer laterals, transformers, roof drains, vaults, utility pedestals, street lights (water, sewer, gas, power, phone and cable locations, and any other above groundutilities/features.

9. For for utility locates, call811 to have utility owners locate under-groundfacilities.

10. Show method of storm water disposal including roof run-off and slope of large paved areas.

11. All surface water (creeks, sloughs, drainage ditches, etc.) on or adjacent to the property.

RESIDENTIALPLOT PLAN

RESIDENTIAL PLOT PLAN GENERAL REQUIREMENTS Many different permits require a plot plan (sometimes called a “site” plan), which is a detailed and

accurate map of the project’s property. A complete and accurate plot plan is important to avoid delays in the review and approval of your project. A complete plot plan will include all the site features and information (depending on your site, of course) listed below. Attached to this sheet are typical plot plan examples.

Community and Economic Development Department | Phone 360.442.5086 Public Works and Engineering Department | Phone 360.442.5200

1525 Broadway, P.O. Box 128, Longview, WA, 98632


PL PL

PL

ProposedOut Building

ProposedHouse

ProposedGarage

Proposed Roof Drain

Proposed Widthof Driveway

Residential Plot Plan

P.U.D.PhoneCable

Gas

serv

ice

5' Utility Easement(Where Applicable)

R/W R/W

Sewer LateralProposed

Water MeterProposed

Sidewalk

Street Light

TreeStreet Light PowerCurb

Hydrant

Curb

Storm Line

Center Line Street

Asphalt street

Scale: 1" = 10'

PARK STREET

OutClean

Prop

erty

Lin

e

Prop

erty

Lin

e

Property Line( 50' )

( 50' )

( 120

' )

( 120

' )

CatchBasin

Owner/Applicant:Legal Description:Lot: Block:Plat:

Phone Number:Project Address:Parcel Number:

Project Description: (new house, replace driveway, new sidewalk, new garage, new water service, new sewer service, etc.)

1234 Park Street(360) 555-1234

05324

John & Jane Doe

Building New house w/ attached garage, new driveway, new water service, new sewerservice, new sidewalk, new garden shed (10 x 12)

5 8Longview #3

2006\troys\plot plan.dwgrevised: 3-2015

EXAMPLE - FOR REFERENCE ONLY

Do not submit with application

AutoCAD SHX Text

TRAN

AutoCAD SHX Text

TEL

AutoCAD SHX Text

TV

AutoCAD SHX Text

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RESIDENTIAL PLOT PLAN

Owner/Applicant: Daytime Phone Number:

Project Address: , Longview, WA

Legal Descr: Lot # Block # Plat Parcel #

Project Description (eg.,Construct new house, addition to house, new garage, shed, fence, etc.):

Stormwater Plan Review Submittal Form (Mar 2018)

STORMWATER

P l an R ev i ew

Submittal Form

Public Works / Stormwater Division 1525 Broadway, P.O. Box 128 Longview, WA 98632 360.442.5209 / Fax 360.442.5953

Per Longview Municipal Code 17.80.070, all development projects are to provide stormwater submittals

at the time of permit application. Please use the worksheet on Page 2 to determine the project category

and ensure your application stormwater submittal includes all of the applicable items listed below.

APPLICANT/PROJECT ADDRESS

Applicant Name:

Project Address:

Phone Number: Email:

Staff Use Only: Meritage #: ____________________ Stormwater Project #: ____________________

PROJECT CATEGORY: MINOR PROJECT SMALL PROJECT MAJOR PROJECT

REQUIRED STORMWATER SUBMITTALS

Minor Project

Minor Project Stormwater Form

Small Project

Small Project Abbreviated Stormwater Site Plan

Source Control Worksheet (non-residential projects only)

Major Project

Stormwater management site plan narrative and technical report describing how the proposed project will address stormwater Minimum Requirements #1 through 9

Stormwater management construction plan sheet(s)

Draft maintenance agreement

APPLICATION CERTIFICATION

I hereby certify that I have read and examined this form and all attachments and know the same to be

true, accurate and complete under penalty of perjury by the laws of the State of Washington.

_______________________________ _______________________________ ______ __________________

APPLICANT’S SIGNATURE PRINTED NAME DATE

City of Longview / Stormwater Plan Review Submittal Form (Mar 2018) Page 2 of 2

PROJECT CATEGORY WORKSHEET

PROPOSED LAND DISTURBANCE

Estimated total land disturbance area including clearing, grubbing, stripping, grading, filling and excavation:

square feet

PROPOSED HARD SURFACES (NEW PLUS REPLACED)

A. New hard surfaces: square feet

B. Replaced hard surfaces: square feet

Total new and replaced hard surfaces [add A + B above]: square feet

Hard surfaces are defined as any impervious surface, a permeable pavement or a vegetated (green) roof

PROPOSED LAND COVER CHANGES

Native vegetation (including pasture) converted to lawn/landscaped areas:

acres

Native vegetation converted to pasture: acres

CRITERIA PROJECT CATEGORY

Less than 5,000 square feet of land disturbance Less than 500 square feet of new+replaced hard surfaces

No submittals required

Must control erosion & sediment during construction and meet

City drainage provisions

5,000 - 6,999 square feet of land disturbance and/or 500 - 1,999 square feet of new+replaced hard surfaces

MINOR PROJECT

7,000 - 43,559 square feet of land disturbance and/or 2,000 - 4,999 square feet of new+replaced hard surfaces Less than 0.75 acres of native vegetation converted to lawn

SMALL PROJECT

1.0 acre or more of land disturbance and/or 5,000 square feet of new+replaced hard surfaces* 0.75 acres or more of native vegetation converted to lawn 2.5 acres or more of native vegetation converted to pasture

MAJOR PROJECT

* Major redevelopment projects (i.e. site with existing hard surface coverage of 35% or more) proposing less than

5,000 square feet of new hard surfaces and a total project cost that does not exceed 50% of the assessed property value,

are only required to address Minimum Requirements #1 through 5 in their stormwater management site plan and report.

Small Project Stormwater Site Plan (Dec 2017)

M i n o r P r o j e c t

Stormwater Form


This document is a template form designed to fulfill Longview Municipal Code 17.80.070(1), which

requires projects meeting the criteria below to submit a site drainage plan and construction stormwater

pollution prevention plan (SWPPP) that complies with Minimum Requirement #2 from the Stormwater

Management Manual for Western Washington.

ELIGIBLE PROJECTS

New construction, redevelopment and land disturbing projects that meet the following criteria are eligible to use

this form:

Disturbing at least 5,000 square feet but less than 6,999 of land that is not part of a larger

common plan of development); and/or

Creating and replacing (in total) at least 500 square feet but less than 1,999 square

feet of hard surfaces

INSTRUCTIONS FOR USING THIS FORM

Please complete all sections of this form and answer all questions as completely as possible:

SECTION 1: Site Drainage Plan

SECTION 2: Erosion and Sediment Control During Construction

For all project plan drawings, either use the blank grid sheets provided in this packet or submit clean and

legible site plans separately.

Please submit this document with a completed and signed Stormwater Plan Review Submittal Form.

More information on meeting these requirements can be found in the Longview Stormwater Guidelines

document. For assistance please contact 360-442-5209 or visit the Engineering counter in City Hall.


Applicant Name:

Project Address:

City of Longview / Small Project Abbreviated Stormwater Site Plan (Dec 2017) Page 2 of 8

SECTION 1: SITE DRAINAGE PLAN

DRAINAGE DESIGN GUIDELINES

Check each box to certify that the following drainage guidelines and standards will be met on the project:

☐ Applicable setbacks for all drainage system components and stormwater management practices

☐ Minimum final grade (slope) of 2% away from building foundations

☐ Existing natural drainage patterns and outfalls preserved to the maximum extent practicable

☐ No increase in existing runoff sheet flow or concentrated flow discharges, or new runoff discharges, onto

adjacent properties, unless a drainage easement is obtained and recorded with the adjacent property.

☐ An approved point of discharge (e.g. curb cut/street gutter, storm drain, roadside ditch, swale, or open water

drain or ditch*, etc.) for all drainage collection and conveyance systems to ensure that they will not create a

public nuisance, safety hazard or harm adjacent properties

* Note: A permit is required to discharge to a Consolidated Diking Improvement District #1 (CDID#1) waterway

(open water ditch or drain). Contact CDID#1 at 360-423-2493 or see www.cdid1.org for more information.

SITE DRAINAGE PLAN

On the next page or submitted separately, provide a drawing of the site showing the final proposed layout

of the project to include the following items (this may be drawn by hand or drafted electronically):

Location and footprint of all proposed impervious hard surfaces including structures, driveways, parking

pads, sidewalks, decks, patios and accessory buildings

Location of any retaining walls and embankments

Proposed drainage collection and conveyance systems including roof downspouts, area drains, french

drains, hard drainage pipes, sump pump discharges and open ditches/swales

Drainage flow paths (shown with arrows) from roof downspouts and other hard surface areas (driveways,

patios, etc.) to the eventual point of discharge from the project site.


SITE DRAINAGE PLAN DRAWING


SECTION 2: EROSION AND SEDIMENT CONTROL DURING CONSTRUCTION

CONSTRUCTION EROSION AND SEDIMENT CONTROL MEASURES

For each topic below, select at least one erosion and sediment control measure that will be used on the project

during the construction phase to reduce the potential for soil erosion and transport of sediment and pollutants

from the site. If the item is not applicable to the site, check “Not applicable” and provide a rationale.

The numbers in parentheses reference the Best Management Practice (BMP) section in the Stormwater

Management Manual for Western Washington, Volume II, where additional guidance and information on these

measures can be obtained. Other approved measures not listed may be specified in the blanks provided; designs

that involve engineering calculations should be prepared by a licensed engineer.

NOTE: This section will serve as the project’s Construction Stormwater Pollution Prevention Plan.

The erosion and sediment control measures identified below may need to be supplemented as on-site

conditions dictate in order to effectively address erosion and sediment control for the project.

Prior to land disturbance, a pre-construction inspection is required to ensure that all BMPs are in place

and the site conforms to the plan.

A. Preserve Vegetation and Mark Clearing Limits

Requirement: Retain topsoil and natural vegetation in an undisturbed state to the maximum extent

practicable. Mark all clearing limits, sensitive areas and their buffers, and any trees that will be preserved.

Limits shall be marked in such a way that any trees or vegetation to remain will not be harmed.

Applicable erosion and sediment control measures (check all that will be used):

☐ Preserving Native Vegetation (C101) ☐ Buffer Zones (C102)

☐ High Visibility Plastic Fence (C103) ☐ (Sediment) Fence – orange only (C233)

☐ Other ________________________

☐ not applicable – please explain why_________________________________________

B. Construction Access

Requirement: Prevent vehicles from tracking soil from the site onto streets or neighboring properties by

stabilizing the entrance with a rock pad. If possible, place the entrance where a future driveway will be

located, as it may be possible to use the rock as a driveway base material. If sediment is tracked offsite,

sweep or shovel it from the paved surface immediately.


☐ Stabilized Construction Entrance (C105) ☐ Other ________________________

☐ Not applicable – please explain why_________________________________________


C. Control Stormwater Runoff Flow Rates

Requirement: Protect properties and waterways downstream of the construction site from erosion by slowing

down stormwater runoff from the site as much as possible.


☐ Interceptor Swales & Dikes (C200) ☐ Check Dams (C207)

☐ Wattles (C235) ☐ Other ________________________


D. Sediment Controls

Requirement: Runoff from disturbed areas must pass through a sediment removal device. Sediment barriers

are typically used to slow sheet flow of stormwater and allow the sediment to settle out behind the barrier.


☐ Silt (Sediment) Fence (C233) ☐ Vegetated Strip (C234)

☐ Wattles (C235) ☐ Sidewalk Subgrade Curb Barrier

☐ Other ________________________

☐ Not applicable – please explain why _____________________________________________

E. Stabilize Soils

Requirement: Protect exposed soils and stockpiles from rain, flowing water, and wind by covering them or

planting grass.

During the wet season from October 1 through April 30, no soils or stockpiles shall remain exposed or

unworked for more than 2 days. From May 1 to September 30, no soils or stockpiles shall remain exposed

and unworked for more than 7 days.


☐ Mulching (C121) ☐ Plastic Covering (C123)

☐ Compost (C125) ☐ Other ________________________


F. Protect Slopes

Requirement: Protect slopes by diverting water away from the top of the slope and establishing vegetation on

slopes.


☐ Nets & Blankets (C122) ☐ C130 Surface Roughening (C130)

☐ Pipe Slope Drain (C204) ☐ Other ________________________

☐ Element is not applicable – please explain why _____________________________________________


G. Protect Drain Inlets

Requirement: Protect all storm drain inlets during construction so that site runoff does not enter the inlets

without first being filtered to remove sediment. Install catch basin protection on all catch basins within 500 feet

downstream of the project. Once the site is fully stabilized, catch basin protection must be removed.


☐ Storm Drain Inlet Protection (C220) ☐ Other ________________________


H. Stabilize Channels and Outlets

Requirement: Stabilize all temporary and permanent conveyance channels and their outlets.


☐ Nets & Blankets (C122) ☐ Check Dams (C207)

☐ Outlet Protection (C209) ☐ Other ________________________


I. Control Pollutants

Requirement: Handle and dispose of all pollutants, such as chemicals, paint, petroleum products, and

concrete (wet and dry) to keep them out of rain and stormwater. Provide cover and containment for liquid

materials and handle all concrete and concrete waste appropriately


☐ Materials on Hand (C150) ☐ Concrete Handling (C151)

☐ Material Delivery, Storage and Containment (C153)

☐ Other ________________________


J. Control Dewatering

Requirement: If dewatering is needed, assess the condition of the pumped water. Clean, non-turbid

dewatering water, such as groundwater, can be discharged to the stormwater system as long as it does not

cause downstream erosion or flooding. Dirty or contaminated dewatering water must be filtered or may be

discharged to the local sanitary sewer, if permitted.


☐ Dewatering Plan (approved by Public Works Department)



K. Maintain Erosion and Sediment Control Measures

Requirement: Maintain and repair erosion and sediment control measures as needed. Inspect all measures

at least weekly and after every storm event. Keep an erosion control inspection log on site and available for

review by City staff at all times. Remove all temporary erosion and sediment control measures within 30 days

after final site stabilization or if the measure is no longer needed.


☐ Materials on Hand (C150) ☐ Certified Erosion and Sediment Control Lead [CESCL] (C160)

☐ Other ________________________

L. Manage the Project

Requirement: Coordinate all work before initial construction with subcontractors and other utilities to ensure

no areas are prematurely worked. Designate an erosion control inspector for the construction site. The

Certified Erosion and Sediment Control Lead (CESCL) or inspector must have the skills to assess site

conditions and construction activities that could impact the quality of stormwater discharges and the

effectiveness of erosion and sediment control measures used to control them. The erosion control inspector

must be on the site or on-call 24 hours a day.


☐ Certified Erosion & Sediment Control Lead (C160) Name: ________________________

☐ Non-CESCL designated inspector Name: ________________________

M. Protect Low Impact Development Practices

Requirement: Protect the proposed permanent Low Impact Development (LID) practices and areas

(identified in Section 2) from compaction and damage from erosion and sediment during construction.


☐ Buffer Zone (C102) ☐ High Visibility Plastic Fence (C103)

☐ Check Dams (C207) ☐ Triangular Silt Dike (C208)

☐ Brush Barrier (C231) ☐ Silt Fence (C233)

☐ Vegetated Strip (C234) ☐ Other ________________________


CONSTRUCTION EROSION AND SEDIMENT CONTROL SITE PLAN

On the next page or submitted separately, provide a drawing of the site showing the construction phase of

the project to include the following items (this may be drawn by hand or drafted electronically):

All areas to be cleared and graded, including cut and fill areas if applicable

Boundary limits of existing trees and vegetation to be protected

Location of all erosion and sediment control measures selected for topics A-M


CONSTRUCTION EROSION AND SEDIMENT CONTROL SITE PLAN DRAWING

Small Project Stormwater Site Plan (Dec 2017)

S m a l l P r o j e c t

ABBREVIATED

Stormwater Site Plan


This document is a template form designed to fulfill Longview Municipal Code 17.80.070(2), which

requires projects meeting the criteria below to submit a stormwater site plan that complies with Minimum

Requirements #1 through #5 from the Stormwater Management Manual for Western Washington.

ELIGIBLE PROJECTS

New construction, redevelopment and land disturbing projects that meet the following criteria are eligible to use

this form:

Disturbing at least 7,000 square feet but less than 43,560 square feet (1 acre) of land that is

not part of a larger common plan of development); and/or

Creating and replacing (in total) at least 2,000 square feet but less than 5,000 square

feet of hard surfaces; and

Converting less than 0.75 acre of natural vegetation to lawn or landscape area

INSTRUCTIONS FOR USING THIS FORM

Please complete all sections of this form and answer all questions as completely as possible:

SECTION 1: Project Location and Existing Site Conditions

SECTION 2: Proposed On-Site Stormwater Management

SECTION 3: Soil Quality and Depth

SECTION 4: Drainage and Stormwater Management Plan

SECTION 5: Erosion and Sediment Control During Construction

For all project plan drawings, either use the blank grid sheets provided in this packet or submit clean and

legible site plans separately.

Please submit this document with a completed and signed Stormwater Plan Review Submittal Form.

More information on meeting these requirements can be found in the Longview Stormwater Guidelines

document. For assistance please contact 360-442-5209 or visit the Engineering counter in City Hall.


Applicant Name:

Project Address:


SECTION 1: PROJECT LOCATION AND EXISTING SITE CONDITIONS

PROJECT LOCATION (see map below)

☐ Valley (South of Ditch #6) ☐ Hillside (North of Ditch #6)

Ditch #6 lies south of Pacific Way (north of John Null Park), Cascade Way, Castleman Drive and Fishers Lane

EXISTING CONDITIONS SUMMARY

Describe the existing site conditions by answering the questions below.

1) What is the existing ground cover (check all that apply):

☐ Forest ☐ Pasture ☐ Trees ☐ Lawn/Landscaping

☐ Gravel ☐ Pavement ☐ Building(s) ☐ Other ___________________

2) What is the topography (slope) of the site? (please reference the Longview/Kelso Urban Area

Stormwater LID Feasibility – Slope Map):

☐ Flat to Gradual Slopes (0 – 8%) ☐ Moderate Slopes (9 – 15%) ☐ Steep Slopes ( > 15%)

3) What is the annual minimum depth to groundwater on the site? (please reference the Longview/Kelso

Urban Area Stormwater LID Feasibility – Depth to Groundwater Map):

☐ 0 to 3 feet ☐ 3 to 6 feet ☐ more than 6 feet

Ditch #6


4) Are there any geological hazard areas present on the site? (please reference the Longview/Kelso

Urban Area Stormwater LID Feasibility – Geohazard Areas Map):

☐ YES ☐ NO

5) Which surface water and drainage features are currently found on the site (check all that apply):

☐ Area Drain ☐ French Drain ☐ Hard Drain Pipe ☐ Sump Pump

☐ Catch Basin ☐ Storm Sewer ☐ Culvert ☐ Open Ditch / Swale

☐ Stream ☐ Pond ☐ Spring / Seep ☐ Other ___________________

6) Describe any known drainage problems on the site (e.g. standing water, flooding, erosion, etc.):

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

7) HILLSIDE PROJECTS ONLY – Describe how and where surface water enters the site from the uphill

side and how and where water exits the site:

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

8) On the next page or submitted separately, provide a rough drawing of the existing site conditions that

includes the following items:

Existing buildings, driveways, and other impervious / hard surfaces

Existing retaining walls and embankments

Boundaries of existing native vegetation (e.g. trees, native vegetation, pasture)

Boundaries of existing lawn and landscaped areas

Surface water and drainage features (identified in Question 5)

Existing drainage patterns (how and where surface water flows across the site)

Location of existing stormwater discharge points to public right-of-way (street or roadside ditch) –

including open drainage / swales, french drains, hard pipes, and sump pump discharges.

Existing drainage and utility easements (if applicable)


EXISTING CONDITIONS SITE DRAWING


SECTION 2: PROPOSED ON-SITE STORMWATER MANAGEMENT

STORMWATER LOW IMPACT DEVELOPMENT (LID) PRACTICES

Beginning July 1, 2017, all development projects adding or replacing at least 2,000 square feet of hard surfaces

are required to utilize Low Impact Development (LID) stormwater management practices to infiltrate, disperse and

retain stormwater runoff on-site to the extent feasible without causing flooding, erosion or geohazard impacts.

The LID practices to be considered vary depending on the runoff source (rooftop drainage vs. stormwater from

other hard surfaces) and whether the project is in the Valley or Hillside:

LIST 1A -- VALLEY LIST 1B -- HILLSIDE

Runoff from Roofs Runoff from Other

Hard Surfaces

Runoff from Roofs Runoff from Other

Hard Surfaces

Downspout Full Infiltration –or– Concentrated Flow

Dispersion –or–

Full Dispersion –or– Full Dispersion

Downspout Dispersion System –or–

Downspout Full Infiltration

Rain Garden –or–

Perforated Stub-out Connection

Sheet Flow Dispersion Rain Garden Permeable Pavement

Downspout

Dispersion System Concentrated Flow Dispersion –or–

Perforated Stub-out

Connection Sheet Flow Dispersion

Use the appropriate worksheet on the following pages (Worksheet A for Valley projects; Worksheet B for Hillside

projects) to determine the preliminary feasibility for each of the LID practices. Based upon the feasibility analysis,

select the practices for use on the project as follows:

For VALLEY projects, select the preferred feasible practices from List 1A that are applicable for the

site/project for areas of roof runoff and runoff from other sources. You can choose to use more than one

applicable practice for each source of runoff.

For HILLSIDE projects, use the first feasible practice(s) in numeric order from LIST 1B for areas of

roof runoff and runoff from other sources.

Check the stormwater LID practices being proposed for the project (select all that will be applied):

Roof Areas Other Hard Surfaces

☐ Downspout Full Infiltration (T5.10A) ☐ Concentrated Flow Dispersion (T5.11)

☐ Downspout Dispersion Systems (T5.10B) ☐ Sheet Flow Dispersion (T5.12)

☐ Perforated Stub-out Connections (T5.10C) ☐ Full Dispersion (T5.30)

☐ Full Dispersion (T5.30) ☐ Rain Garden (T5.14A)

☐ Rain Garden (T5.14A) ☐ Permeable Pavement (T5.15)

☐ project has no roof areas ☐ project has no other source areas

Numbers refer to the applicable BMP from the Stormwater Management Manual for Western Washington, Volume V


Worksheet A – VALLEY Small Projects: Low Impact Development Practice Preliminary Feasibility

LID Practice Feasibility Questions Yes No

3 feet or less from finished grade to seasonal high water table? ☐ ☐

1 feet or less vertical separation from bottom of dry well or trench to seasonal high water table? ☐ ☐

Setbacks of less than 10 feet from structure or property line? ☐ ☐

Vegetated flow path of less than less than 50 feet? ☐ ☐



1 feet or less vertical separation from bottom of dry well or trench to seasonal high water table? ☐ ☐


LID Practice Feasibility Questions Yes No



Sufficient vegetated buffer area for dispersion? (minimum 12 foot buffer area for up to 20 feet of

hard surface, plus 10 feet for each additional 20 feet of hard surface or fraction thereof)☐ ☐

* Review expanded feasibility checklist and requirements -- Consult City stormwater staff for more information

Runoff from Roof Areas

Runoff from Other Hard Surfaces

Perforated

Stub-out

Connections

(T5.10C)

Concentrated

Flow Dispersion

(T5.11)

Sheet Flow

Dispersion

(T5.12)

☐ Infeasible (YES to any question) ☐ More review required* (NO to all questions)





Downspout

Dispersion

Systems

(T5.10B)

Downspout Full

Infiltration

(T5.10A)


Worksheet B – HILLSIDE Small Projects: Low Impact Development Practice Preliminary Feasibility

RoofsOther Hard

Surfaces

Within 50 feet of geological hazard area? ☐ ☐

Slope greater than 15%? ☐ ☐

Project area ratio of native vegetation to impervious less than 6.5:1? ☐ ☐

Dispersion flow path (through native vegetation) less than 100 ft? ☐ ☐

Within 50 feet of geological hazard area? ☐ ☐




Within 50 feet of geological hazard area or slopes greater than 20%? ☐ ☐

Slopes greater than 8% at location of rain garden? ☐ ☐

1 feet or less vertical separation from bottom of facility to bedrock or

seasonal high water table?☐ ☐



Slope greater than 5% (for porous asphalt), 10% (for pervious

concrete) or 12% (for permeable interlocking concrete pavers)?☐ ☐

Downslope of steep, erosion prone areas? ☐ ☐

Threatens existing below-grade basement, utilities, adjacent parcels? ☐ ☐





Vegetated flow path of less than less than 50 feet ? ☐ ☐




Sufficient vegetated buffer area for dispersion? ** ☐ ☐

Within 50 feet of geological hazard area or slopes greater than 20%? YES NO




* Review expanded feasibility checklist and requirements -- Consult City stormwater staff for more information

** minimum 12 foot buffer area for up to 20 feet of hard surface, plus 10 feet for each additional 20 feet of hard surface or fraction thereof

Sheet Flow

Dispersion

(T5.12)

Perforated

Stub-out

Connections

(T5.10C)

Rain Gardens

(T5.14A)

Permeable

Pavement

(T5.15)

Downspout

Dispersion

Systems

(T5.10B)

Concentrated

Flow Dispersion

(T5.11)

NO


YES

YESNO

YES



LID Practice

Full Dispersion

(T5.30)

Downspout Full

Infiltration

(T5.10A)

No



Feasibility Questions

Applicable for:

YES YES

YES NO

Yes




YES

YES NO

NO

YES

NOYES


SECTION 3: SOIL QUALITY AND DEPTH

SOIL QUALITY AND DEPTH OPTIONS FOR DISTURBED SOIL AREAS

All projects meeting the threshold for this form with disturbed soil areas (to be replanted with landscaping, lawn

or native vegetation) are required to meet minimum soil quality and depth criteria.

See the Longview Stormwater Guidelines for more information on soil quality and depth requirements.

Select the option to be used for the project:

Soil Quality and Depth Option Soil Quality and Depth Criteria

☐ OPTION A: Amend existing topsoil or subsoil in place

Scarify or till subgrade to 9 inches depth (or to depth needed to achieve a total depth of 12 inches of uncompacted soil after calculated amount of amendment is added). Entire surface should be disturbed by scarification. Do not scarify within drip line of existing trees to be retained. Amend soil to meet required organic content.

Planting Beds

Place 3 inches of composted material and rototill into 5 inches of soil (a total amended depth of about 9.5 inches, for a settled depth of 8 inches).

Turf Areas

Place 1.75 inches of composted material and rototill into 6.25 inches of soil (a total amended depth of about 9.5 inches, for a settled depth of 8 inches).

☐ OPTION B: Stockpile existing topsoil during grading. Replace before planting

Stockpile and cover soil with weed barrier material that sheds moisture yet allows air transmission, in approved location, prior to grading. Replace stockpiled topsoil prior to planting. Amend if needed to meet required organic content. NOTE: If placed topsoil plus compost or other organic material will amount to less than 12 inches: Scarify or till subgrade to depth needed to achieve 12 inches of loosened soil after topsoil and amendment are placed. Entire surface should be disturbed by scarification. Do not scarify within drip line of existing trees to be retained.

☐ OPTION C: Import topsoil mix of sufficient organic content and depth to meet the requirements

Scarify or till subgrade in two directions to 6 inches depth. Entire surface should be disturbed by scarification. Do not scarify within drip line of existing trees to be retained.

Planting Beds: Topsoil mix containing 10% organic matter (typically around 40% compost).

Turf Areas: Topsoil mix containing 5% organic matter (typically around 25% compost).

Place 3 inches of imported topsoil mix on surface and till into 2 inches of soil.

Place second lift of 3 inches topsoil mix on surface.


SECTION 4: STORMWATER MANAGEMENT AND DRAINAGE PLAN

DRAINAGE DESIGN GUIDELINES

Check each box to certify that the following drainage guidelines and standards will be met on the project:

☐ Applicable setbacks for all drainage system components and stormwater management practices

☐ Minimum final grade (slope) of 2% away from building foundations

☐ Existing natural drainage patterns and outfalls preserved to the maximum extent practicable

☐ No increase in existing runoff sheet flow or concentrated flow discharges, or new runoff discharges, onto

adjacent properties, unless a drainage easement is obtained and recorded with the adjacent property.

☐ An approved point of discharge (e.g. curb cut/street gutter, storm drain, roadside ditch, swale, or open water

drain or ditch*, etc.) for all drainage collection and conveyance systems to ensure that they will not create a

public nuisance, safety hazard or harm adjacent properties

* Note: A permit is required to discharge to a Consolidated Diking Improvement District #1 (CDID#1) waterway

(open water ditch or drain). Contact CDID#1 at 360-423-2493 or see www.cdid1.org for more information.

STORMWATER MANAGEMENT AND DRAINAGE PLAN

On the next page or submitted separately, provide a drawing of the site showing the final proposed layout

of the project to include the following items (this may be drawn by hand or drafted electronically):

Location and footprint of all proposed impervious hard surfaces including structures, driveways, parking

pads, sidewalks, decks, patios and accessory buildings

Location of any retaining walls and embankments

Proposed site grading and contours (Hillside projects only)

Proposed drainage collection and conveyance systems including roof downspouts, area drains, french

drains, hard drainage pipes, sump pump discharges and open ditches/swales

Location of stormwater LID practices (identified in Section 2) including:

Downspout Full Infiltration

Downspout Dispersion Systems

Perforated Stub-out Connections

Full Dispersion

Concentrated Flow Dispersion

Sheet Flow Dispersion

Rain Garden

Permeable Pavement

Areas of disturbed soils to be amended using method identified in Section 3

Drainage flow paths (shown with arrows) from roof downspouts and other hard surface areas (driveways,

patios, etc.) to LID practices (if applicable) and the eventual point of discharge from the project site.

Attach applicable construction details (drawings) for each stormwater LID practice to this short form (stock

details are acceptable).


STORMWATER MANAGEMENT AND DRAINAGE PLAN DRAWING


SECTION 5: EROSION AND SEDIMENT CONTROL DURING CONSTRUCTION

CONSTRUCTION EROSION AND SEDIMENT CONTROL MEASURES

For each topic below, select at least one erosion and sediment control measure that will be used on the project

during the construction phase to reduce the potential for soil erosion and transport of sediment and pollutants

from the site. If the item is not applicable to the site, check “Not applicable” and provide a rationale.

The numbers in parentheses reference the Best Management Practice (BMP) section in the Stormwater

Management Manual for Western Washington, Volume II, where additional guidance and information on these

measures can be obtained. Other approved measures not listed may be specified in the blanks provided; designs

that involve engineering calculations should be prepared by a licensed engineer.

NOTE: This section will serve as the project’s Construction Stormwater Pollution Prevention Plan.

The erosion and sediment control measures identified below may need to be supplemented as on-site

conditions dictate in order to effectively address erosion and sediment control for the project.

Prior to land disturbance, a pre-construction inspection is required to ensure that all BMPs are in place

and the site conforms to the plan.

A. Preserve Vegetation and Mark Clearing Limits

Requirement: Retain topsoil and natural vegetation in an undisturbed state to the maximum extent

practicable. Mark all clearing limits, sensitive areas and their buffers, and any trees that will be preserved.

Limits shall be marked in such a way that any trees or vegetation to remain will not be harmed.


☐ Preserving Native Vegetation (C101) ☐ Buffer Zones (C102)

☐ High Visibility Plastic Fence (C103) ☐ (Sediment) Fence – orange only (C233)

☐ Other ________________________

☐ not applicable – please explain why_________________________________________

B. Construction Access

Requirement: Prevent vehicles from tracking soil from the site onto streets or neighboring properties by

stabilizing the entrance with a rock pad. If possible, place the entrance where a future driveway will be

located, as it may be possible to use the rock as a driveway base material. If sediment is tracked offsite,

sweep or shovel it from the paved surface immediately.


☐ Stabilized Construction Entrance (C105) ☐ Other ________________________



C. Control Stormwater Runoff Flow Rates

Requirement: Protect properties and waterways downstream of the construction site from erosion by slowing

down stormwater runoff from the site as much as possible.


☐ Interceptor Swales & Dikes (C200) ☐ Check Dams (C207)

☐ Wattles (C235) ☐ Other ________________________


D. Sediment Controls

Requirement: Runoff from disturbed areas must pass through a sediment removal device. Sediment barriers

are typically used to slow sheet flow of stormwater and allow the sediment to settle out behind the barrier.


☐ Silt (Sediment) Fence (C233) ☐ Vegetated Strip (C234)

☐ Wattles (C235) ☐ Sidewalk Subgrade Curb Barrier

☐ Other ________________________


E. Stabilize Soils

Requirement: Protect exposed soils and stockpiles from rain, flowing water, and wind by covering them or

planting grass.

During the wet season from October 1 through April 30, no soils or stockpiles shall remain exposed or

unworked for more than 2 days. From May 1 to September 30, no soils or stockpiles shall remain exposed

and unworked for more than 7 days.


☐ Mulching (C121) ☐ Plastic Covering (C123)

☐ Compost (C125) ☐ Other ________________________


F. Protect Slopes

Requirement: Protect slopes by diverting water away from the top of the slope and establishing vegetation on

slopes.


☐ Nets & Blankets (C122) ☐ C130 Surface Roughening (C130)

☐ Pipe Slope Drain (C204) ☐ Other ________________________



G. Protect Drain Inlets

Requirement: Protect all storm drain inlets during construction so that site runoff does not enter the inlets

without first being filtered to remove sediment. Install catch basin protection on all catch basins within 500 feet

downstream of the project. Once the site is fully stabilized, catch basin protection must be removed.


☐ Storm Drain Inlet Protection (C220) ☐ Other ________________________


H. Stabilize Channels and Outlets

Requirement: Stabilize all temporary and permanent conveyance channels and their outlets.


☐ Nets & Blankets (C122) ☐ Check Dams (C207)

☐ Outlet Protection (C209) ☐ Other ________________________


I. Control Pollutants

Requirement: Handle and dispose of all pollutants, such as chemicals, paint, petroleum products, and

concrete (wet and dry) to keep them out of rain and stormwater. Provide cover and containment for liquid

materials and handle all concrete and concrete waste appropriately


☐ Materials on Hand (C150) ☐ Concrete Handling (C151)

☐ Material Delivery, Storage and Containment (C153)

☐ Other ________________________


J. Control Dewatering

Requirement: If dewatering is needed, assess the condition of the pumped water. Clean, non-turbid

dewatering water, such as groundwater, can be discharged to the stormwater system as long as it does not

cause downstream erosion or flooding. Dirty or contaminated dewatering water must be filtered or may be

discharged to the local sanitary sewer, if permitted.


☐ Dewatering Plan (approved by Public Works Department)



K. Maintain Erosion and Sediment Control Measures

Requirement: Maintain and repair erosion and sediment control measures as needed. Inspect all measures

at least weekly and after every storm event. Keep an erosion control inspection log on site and available for

review by City staff at all times. Remove all temporary erosion and sediment control measures within 30 days

after final site stabilization or if the measure is no longer needed.


☐ Materials on Hand (C150) ☐ Certified Erosion and Sediment Control Lead [CESCL] (C160)

☐ Other ________________________

L. Manage the Project

Requirement: Coordinate all work before initial construction with subcontractors and other utilities to ensure

no areas are prematurely worked. Designate an erosion control inspector for the construction site. The

Certified Erosion and Sediment Control Lead (CESCL) or inspector must have the skills to assess site

conditions and construction activities that could impact the quality of stormwater discharges and the

effectiveness of erosion and sediment control measures used to control them. The erosion control inspector

must be on the site or on-call 24 hours a day.


☐ Certified Erosion & Sediment Control Lead (C160) Name: ________________________

☐ Non-CESCL designated inspector Name: ________________________

M. Protect Low Impact Development Practices

Requirement: Protect the proposed permanent Low Impact Development (LID) practices and areas

(identified in Section 2) from compaction and damage from erosion and sediment during construction.


☐ Buffer Zone (C102) ☐ High Visibility Plastic Fence (C103)

☐ Check Dams (C207) ☐ Triangular Silt Dike (C208)

☐ Brush Barrier (C231) ☐ Silt Fence (C233)

☐ Vegetated Strip (C234) ☐ Other ________________________


CONSTRUCTION EROSION AND SEDIMENT CONTROL SITE PLAN

On the next page or submitted separately, provide a drawing of the site showing the construction phase of

the project to include the following items (this may be drawn by hand or drafted electronically):

All areas to be cleared and graded, including cut and fill areas if applicable

Boundary limits of existing trees and vegetation to be protected

Location of all erosion and sediment control measures selected for topics A-M


CONSTRUCTION EROSION AND SEDIMENT CONTROL SITE PLAN DRAWING

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