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PO Box 1307
City Hall Northwest
1775 12th Avenue NW
Issaquah, WA 98027
Phone: 425-837-3400
Fax: 425-837-3409
Email:
Hours: 8:00 AM - 5:00 PM
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 / Public Works Engineering / Water, Sewer and Stormwater Programs / NPDES Phase II Municipal Stormwater Permit

NPDES Phase II Municipal Stormwater Permit

NEW - PROPOSED STORMWATER REGULATIONS

The City will be adopting new stormwater standards in 2009 to meet the minimum requirements established by the Department of Ecology.  These updates will include revised temporary erosion and sediment control (TESC) and Stormwater Low Impact Development (LID) requirements.

For more information, click here

Background

The City is regulated under the Washington State Department of Ecology's Western Washington Phase II Municipal Stormwater Permit (Permit). This permit became effective in February, 2007, and contains various requirements for stormwater management and operations that must be implemented over the 5-year permit ending February 15, 2012. 

The Permit broadly applies to many different City activities that involve maintenance and operations of City facilities, permitting of new development, inspections and enforcement of water quality regulations, and other activities conducted in different City departments.  The City will be adapting codes, policies, and procedures as needed to comply with the Permit.

Stormwater Management Program

To meet the conditions of the permit, a Stormwater Management Program (SWMP) has been prepared.  The SWMP outlines all requirements of the Permit and a summary of the City’s work program to meet those requirements over the 5-year permit term, and will be updated annually to incorporate progress on implementing the SWMP and changes to projected future work efforts.  A copy of the latest SWMP document can be downloaded via the link at the bottom of this page.

Annual Reports

Progress on implementing the SWMP is documented annually, on March 31, in an Annual Report that is submitted to Ecology along with this SWMP.  The latest Annual Report with associated documentation is posted at the bottom of this page. 

Availability of Documents

In addition to being available through downloading at the bottom of this page, the SWMP, the Annual Report, and other submittals required by the Permit are available to the public in printed form.  Copying fees may be charged for those documents.  Please make the request through the Public Works Engineering Department.

Additional Information on NPDES Phase II

Please follow the following agency links for detailed information on the NPDES Phase II program and the associated permit.

Updated 4/1/09




PDF - 2008 Phase 2 Annual Report   ISSAQUAH 2008 PHII ANNUAL REPORT.PDFSpacer(113.6KB)
2nd Year Annual Report for the Phase 2 Municipal Stormwater Permit (March 31 2009)

PDF - Stormwater Management Program for Phase 2   ISSAQUAH SWMP 2009 UPDATE_3-31-09.PDFSpacer(713.5KB)
Stormwater Management Program (SWMP) for Implementing the Phase 2 Municipal Stormwater Permit (March 31 2009)

Aerial city photograph credit - Tim Heneghan

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