Surface Water Management (SWM)

Surface Water Management (SWM) provides water quality protection for the community by implementing programs, which reduce pollution in our rivers, streams and wetlands caused by urban stormwater runoff.

Stormwater runoff is the most significant source of water pollution in our state. It washes pollutants into storm drains and drainage ditches, carrying silt, oil, chemicals, trash and pesticides to the nearest creek, stream or wetland. The polluted runoff can harm fish, aquatic life, and threaten our drinking water.

Through watershed protection and planning, Water Environment Services (WES) is taking a long-term approach to protecting the health of our water resources.

What does the SWM program do?
• Maintains stormwater facilities
• Responds to customer service enquiries
• Monitors water quality
• Requires buffer zones between new development and wetland/creek areas
• Plans and designs regional water quality and flood reduction projects
• Provides long-term watershed planning
• Provides public outreach and partnerships for pollution prevention (link to community outreach page)

Why do I pay a SWM fee?

Each resident of the community contributes to the cost of the program because we use the buildings, streets, parking lots and sidewalks that add to the need for a surface water management program. Developers also pay for the cost of building, the drainage systems and water quality facilities serving their development.

MS4 Permit Stormwater Management Plans

• Clackamas County Service District No. #1
• Surface Water Management Agency of Clackamas County
• Monitoring Plan

MS4 Permit Renewal Submittal

• September 2, 2008 Submittal
• January 12, 2009 Addendum

2009-2010 MS4 Permit Annual Report

• MS4 Annual Report
• Appendix A: CCSD#1 0910 Annual Water Quality and Flow Monitoring Report
• Appendix B: SWMACC 0910 Annual Water Quality and Flow Monitoring Report
• Appendix C: Regional Coalition for Clean Rivers and Streams Annual Report
• Appendix D: Regional Coalition for Tualatin Basin Public Advisory Committee Annual Report

2008-2009 MS4 Permit Annual Report

• MS4 Annual Report
• Appendix B: Clackamas County Service District No. #1 Annual Water Quality and Flow Monitoring Report
• Appendix C: Surface Water Management Agency of Clackamas County Annual Water Quality and Flow Monitoring Report

*Previous years available on request

Forms

Frequently Asked Questions

Plan Review Charges & Fees Schedule

Rules & Specifications

TMDL Documents, Draft and Final

• Willamette River TMDL Implementation Plan (awaiting approval) (PDF)
• Sandy River TMDL Implementation Plan (awaiting approval) (PDF)
• Tualatin River TMDL Implementation Plan (PDF)
• Tualatin River TMDL Implementation Plan (Appendix F only, awaiting approval) (PDF)

Surface Water Management Citizen Advisory Committees

The Commissioners and WES work with the North Clackamas and Lower Tualatin Surface Water Management Citizens’ Advisory Committees to develop and implement programs and standards that relate to surface water and storm water management in Clackamas County Service District No. 1 (CCSD1) and the Surface Water Management Agency of Clackamas County (SWMACC), respectively.

CCSD No. 1 serves the communities of Boring, Clackamas, Happy Valley, Hoodland, Johnson City, Milwaukie and Rivergrove. SWMACC serves the Lower Tualatin area of the County. Interested residents and representatives of businesses, associations, non-profit groups and other organizations that are based in CCSD No. 1 and SWMACC are encouraged to apply. All meetings are open to the public. Agenda and past minute meeting notes can be viewed at Public Meetings and Citizen Involvement.

Resources

• Department of Environmental Quality (DEQ) water quality program
• Environmental Protection Agency (EPA) National Pollutant Discharge Elimination System (NPDES)
• Willamette Basin's Total Maximum Daily Loads (TMDL's)