NPDES - February 2008 Submittal

On February 15, 2008, Snohomish County submitted a package of draft stormwater management regulations to the Washington State Department of Ecology (DOE), meeting the Phase I Municipal Stormwater Permit deadline.  The DOE has 60 days to review the materials. 

Draft stormwater management regulations submitted to the Washington State Department of Ecology

1. DOE transmittal letter from Executive Reardon, dated February 13, 2008, outlining the contents of the full submittal and highlighting several significant issues where alternative regulations are proposed.
2. Draft ordinance relating to Chapter 7.53:  Water Pollution Control
3. Draft ordinance relating to Chapter 30.63A:  Drainage
4. Draft ordinance relating to Chapter 30.63B:  Land Disturbing Activity (previously Snohomish County Code [SCC] 30.63B Grading
5. Draft ordinance relating to Chapter 30.85:  Code Enforcement
6. Fact Sheet 021408:  Re: Draft Snohomish County Drainage Manual addendum
7. Draft Snohomish County Addendum 021408:  Draft Snohomish County Drainage Manual addendum, adapting the 2005 DOE Stormwater Drainage Manual for Western Washington (DOE Manual), for use in Snohomish County as an equivalent manual;
8. Draft Source Control Best Management Practices (BMP) Vol_4_rev 021408
9. Draft Engineering Design and Development Standards (EDDS) Chapter 5:  Drainage
10. Draft: New Chapter 11 of EDDS, containing low impact development best management practices
11. Snohomish County Aquifer Recharge/Wellhead Protection map, dated October 1, 2007
12. Getchell Plateau Groundwater Investigation, by Snohomish County DPW/SWM, dated March, 2006
13. Detention Pond Sizing Issue Paper, by Northwest Hydraulic Consultants, dated October, 1997
14. Letter to Charles L. Steele, DOE Floodplain Management Specialist, from Thomas Rowe, PDS Division Manager, dated October 20, 2004
15. Letter to Thomas Rowe, PDS Division Manager, from Charles L. Steele, DOE Floodplain Management Specialist, dated October 27, 2004
16. Letter to Ryan Ike, US Department of Homeland Security, from Thomas Rowe, PDS Division Manager, dated October 20, 2004
17. Letter to Thomas Rowe, PDS Division Manager, from Ryan Ike, US Department of Homeland Security, dated October 26, 2004

All submittal documents are posted above except the following supporting attachments:

• Low Impact Development:  Technical Guidance Manual for Puget Sound, by Puget Sound Action team and WSU Pierce County Extension, dated January, 2005 (Revised, May, 2005)
• The Groundwater System and Groundwater Quality in Western Snohomish County, Washington, by US Geological Survey and Snohomish County, Snohomish County PUD No. 1, and Washington State DOE, dated 1997
• Draft Technical Memorandum:  Baseline Hydrogeologic Information, Land Use Information and Water Quality Analysis, by Golder Associates, dated October 4, 2007; and Draft Report on Cross Valley Sole Source Aquifer Wellhead Protection Plan, by Golder Associates, dated December 3, 2007
• Snohomish County Aquifer Recharge/Wellhead Protection map, dated October 1, 2007