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Washington State Department of Ecology:

Take the quiz to see how much you know about stormwater
Challenge yourself and see what your water pollution prevention profile could be

Stormwater Education

Homeowner's Guide to Grassed Bio-Infiltration Swales (PDF)
Homeowners Guide to Stormwater Drainage Easements (PDF)
Good Housekeeping Practices (PDF)
Storm Drain Guide (PDF)
Urban Runoff Pollution Prevention (PDF)
Natural Location of Drainage Systems (PDF)
Natural Yard Care - Dept. of Ecology (PDF)

Washington Waters - Ours to Protect

Washington Waters Boating Pollution Impacts (PDF)
Washington Waters Car (Leaking Oil) Pollution Impacts (PDF)
Washington Waters Dog Pollution Impacts (PDF)
Washington Waters Farm Manure Pollution Impacts (PDF)
Washington Waters Septic System Failure Pollution Impacts (PDF)
Washington Waters Yard Treatment Pollution Impacts (PDF)

Grassed Bio-Infiltration Swales

Visit our 'Grassed Bio-Infiltration Swales' webpage to explore more information on recommended techniques and requirements.

Code Changes Regarding Grassed Bio-Infiltration Swales (PDF)
Contractors Field Guide - Grassed Bio-Infiltration Swale Construction (PDF)
Demonstration Swale Project Technical Report 2012(PDF)
Demonstration Swale Project Technical Report 2013 (PDF)
Grassed Bio-Infiltration Swales (PDF)

Maps

Basin Map - Stormwater Sub Basins Map (PDF)
Boundary Map - Stormwater Service Area (PDF)

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1. Canines For Clean Water
2. Storm Drain Stenciling

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Spokane, WA 99260
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