CAMAS Stormwater Design
Standards Manual
Submit comments or questions to Jim (Curleigh) Carothers
jcarothers@ci.camas.wa.us
Workshop on June 7, 2010
Public Hearing Date: TBA

General Information
This division of engineering provides technical guidance and enforcement support for stormwater quality in the City of Camas. Duties include public education, storm pond maintenance inspection, compliance review for development plans, erosion violation investigation and enforcement. This section also deals with wetland impacts and protection.

Stormwater Quality
The City of Camas uses the 1992 Stormwater Management Manual for the Puget Sound Basin to evaluate the design of new stormwater facilities. The design intent is to treat stormwater using Best Management Practices (BMP's) and detain storm water runoff to provide a release rate equal to the undeveloped site. (See Detention Ponds map.)

Stormwater Facilities
These facilities are inspected yearly by the City, but are typically maintained by the Home Owner Associations or commercial/industrial owners of the property. For maintenance requirements contact Anita Ashton.

Erosion Prevention and Sediment Control
The City of Camas uses several manuals, including the Stormwater Management Manual for Western Washington, Volume II, as a guide for avoiding immediate and long-term environmental impacts due to construction.

Wetlands
The U.S. Army Corps of Engineers has the primary responsibility for wetland permitting and enforcement action. The Washington State Department of Ecology (DOE) has some overlay enforcement and permitting authority along with the Corps. The City requires wetland studies on new developments to determine what impacts may occur. Prior to any construction activity, the City requires verification that all state and federal permits have been obtained and provides a spot check that all conditions are followed during construction. Many times the U.S. Army Corps of Engineers will require long term monitoring of a mitigation site to measure performance of the mitigation. (See Wetlands map.)

National Pollutant Discharge Elimination System Phase II (NPDES)
This permit is a federal requirement and is administered by DOE. There are two NPDES permits that may be required by the City:
1. NPDES and Waste Discharge General permit for Stormwater discharges associated with construction activities (sites larger than five acres)
2. NPDES Phase II permit for separate municipal storm sewer systems (MS4S)

Permit #1 is used by developers and must be received from DOE prior to plan approval by the City.

Permit #2 has been submitted to DOE and awaits approval. This permit requires cities to have specific measurable goals and to meet the following six criteria:
" Public education and outreach on stormwater impacts
" Public involvement and participation
" Illicit discharge detection and elimination
" Construction site runoff control
" Post construction stormwater management in new developments and redevelopment
" Pollution prevention and good housekeeping for municipal operations

DOE will require full implementation of the programs outlined in the permit application for each of the above criteria within five years of DOE issuance of the permit. Permit issuance does not coincide with the application deadline.

Stormwater Happenings
Effective February 16, 2007, the Department of Ecology (DOE) issued the 2007 Western Washington Phase II Municpal Stormwater Permit. The National Pollutant Discharge Elimination Systen from Small Municipal Separate Storm Sewer Systems (MS4s) is in effect until February 15, 2012.

The NPDES Ph. II Permit stems from the Federal Clean Water Act and shares its intent to restore and maintain the chemical, physical, and biological integrity of our nation's waters. It combines requirements from the Federal National Pollutant Discharge Elimination System (NPDES) Phase II Permit Program and the State of Washington Water Pollution Control Law (RCW 90.48).

PERMIT REQUIREMENTS:
There are five basic categories to the permit; public education and outreach, public involvement and participation, illicit discharge detection and elimination, the control of runoff from development, and pollution prevention.

The City must provide updates in the form of the following reports:

NPDES Ph.II Permit- Annual Report
View the 2008 City of Camas NPDES Ph. II Annual Report for 2/16/17 through 12/31/07. 2008 Annual Report

Stormwater Management Program - Annual Report
The Permit requires development and documentation of a Stormwater Management Program (SWMP).

View the Draft 2008 City of Camas Stormwater Management Plan. Draft SWMP Report

Copies of both reports can also be viewed at the Camas Library and at City Hall (Camas Municipal Center) in Public Works and the Community Development Dept.

ILLICIT DISCHARGES
Residents are reminded that all stormwater eventually goes into streams, rivers, and lakes. For that reason, care should be taken to insure that no hazardous chemicals are dumped or spilled in the roadways or orhter places where the chemical could end up in the stormwater system This is considered an illicit discharge.

Please report illicit discharges to the City of Camas at 360-817-1565 or the Department of Ecology Southwest Regional Office at 360-407-6300.

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The Stormwater System

Maintenance of the City's stormwater collection system is one of the functions of the Street Department. Stormwater is collected from streets in catch basins or from undeveloped roadsides in ditches. The Street Department maintains the system by cleaning catch basins each year, by keeping collection lines clear of obstructions, and by cleaning ditches as needed.

Residents are reminded that all stormwater eventually goes into streams, rivers, and lakes. For that reason, care should be taken to insure that no hazardous chemicals are dumped or spilled in the roadways or other places where the chemical could end up in the stormwater system. This is considered an illicit discharge.

Please report possible water pollution (illicit discharge) to the City of Camas at 360-817-1565, or the Department of Ecology Southwest Regional Office at 360-407-6300.