Stormwater Detention Facility Maintenance

Contents

• Washington State Stormwater Manuals
• Stormwater Maintenance Manuals
• Inspection Forms
• Public Information About Detention Facilities Maintenance
• Additional Information Resources
• Related MRSC Pages
  • Local Storm and Surface Management Plans, Programs, Regulations and Policy Documents
  • Treatment Best Management Practices

Washington State Stormwater Manuals

• Washington State Stormwater Manual for Western Washington, Volume III -- Hydrologic Analysis and Flow Control Design/BMPs (), Washington State Department of Ecology, Water Quality Program, Publication No.05-10-031, February 2005.  See
  • Detention Facilities  Section 3.2, page 46
• Stormwater Manual for Western Washington, Volume V -- Runnoff Treatment BMPs (), Washington State Department of Ecology, Water Quality Program, Publication No. 05-10-33, April 2005.  See
  • Maintenance Standards, Section 4.6, page 67
• Stormwater Management Manual for Eastern Washington ( 14 MB), Washington State Department of Ecology, Water Quality Program, Publication No. 04-10-076,  September 2004.  See
  • Detention Facilities, Section  6.2, Page 334
  • Maintenance Requirements, Appendix 6A, Page 394
• Municipal Stormwater Permittee Resources and Guidance - Department of Ecology - Check webpages for regularly updated resources and frequently asked questions.

Stormwater Maintenance Manuals

• Clark County Stormwater Facility Maintenance Manual ()
• Kitsap County Stormwater Management Design Manual
  • Appendix A: Kitsap County Maintenance Guidelines ()
  • Appendix B: Generic Stormwater Maintenance Manual ()
• Pierce County Stormwater Maintenance Manual for Private Facilities (), 2005

Inspection Forms

• Anacortes -  Inspection Sheets: Pond, Vault, Catch Basin, Swale ()  - Inspection checklist Gray & Osborne, Inc. constructed for Anacortes (see the “Inspection Pond” tab). It’s fairly simple and was personalized with a photo so the staff could easily tell the area they were inspecting.
• Bothell -  Inspection Forms Regional/Commercial sites () - Includes comment 
• Clark County  - Stormwater Detention Facility Inspection Form ()
• Covington - Sample Inspection Sheets
  • Corrections Report Summary List ()
  • Drainage Conveyance Inspection()
  • Drainage Pond Inspection ()
  • Drainage System Inspection ()
  • Drainage Tank Facility Inspection()
  • Drainage Tank Facility Inspection Report()
  • Infiltration Facility Inspection()
• Duvall - Forms () - Pond Inspection Checklist, Vault Inspection Checklist
• Everett - Detention Pond Checklist, Checklist 4 Form, and  Jobsite Safety Form  ()
• Kitsap County - Inspection Sheet Template and Fault Codes ()
• Pierce County Surfacewater Management Division Forms () - The "Infiltration Facilities BMP" and "Detention Pond BMP" are designed to assist private property owners inspect their own facilities to ensure proper operation.  The "Public Pond Inspection" form is used by SWM staff when inspecting our own asset.
  • Detention Ponds ()
  • Infiltration Facilities ()
  • Pond Maintenance Inspection Checklist ()
• Seattle -  SPU Stormwater  Facility Inspection  Form ()  - Seattle Public Utilities Source Control and Monitoring Team uses to inspect private stormwater facilities to determine if they are operational per the Seattle Municipal Code.
• Snohomish County
  • Comment on use of Amanda Database ()
  • Amanda Spread Sheet Example () - See Check List Tab Maintenance Inspection
  • Tacoma  - Retention and Detention Evaluation Form  ()
• Thurston County -  See maintenance log forms on Maintaining Your Neighborhood Stormwater Facilities
• Yelm  - Stormwater Inspection Forms ()

Public Information About Detention Facilities Maintenance

• King County - Stormwater Facilities
• Mill Creek Surface Water Utility - Stormwater Detention Ponds, Vaults, and Catch Basins ()
• Snohomish County Surface Water Management Division Stormwater Detention Ponds and Vaults
• Thurston County - Maintaining Your Neighborhood Stormwater Facilities - Includes Q&A about maintenance inspections, maintaining catch basins and drywells, required maintenance log for swales, required maintenance log for stormwater ponds

Additional Information Resources

• Maintenance Inspection Checklists, Notifications and Reminders - Stormwater Managers Resource Center Program Resources
• Managing Stormwater in Your Community: A Guide for Building an Effective Post-Construction Program - Center for Watershed Protection - See  Ch 9: Developing a Maintenance Program  and Ch 10: Tracking, Monitoring, and Evaluation
• STP Maintenance Educational Materials - Stormwater Managers Resource Center Program Resources