Stormwater is rain and snow melt that runs off rooftops, streets, highways and parking lots. As stormwater runs, it begins collecting pollutants, such as fertilizers, pesticides, soil, trash, etc, and eventually flows into streams, lakes, and The Puget Sound.
Image Credit: City of Bainbridge Island, WA
As part of our permit processes at DCD, one of the reviews your project will go through is for Stormwater Mitigation or what you will do with the stormwater runoff created by your home or project. There are certain stormwater requirements based on how many square feet of hard surface (eg, impervious surface, permeable pavement) your project creates. The requirements come from The Washington Department of Ecology and are shown in the 2021 Kitsap County Stormwater Design Manual.
The first step to determining the best stormwater mitigation for your project is to fill out the Stormwater Worksheet. This will ask you questions about your project and will let you know what options you have for your Stormwater Plan. This worksheet will be a required submittal item for your permit application.
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Kitsap County Stormwater Design Manual 2021
Kitsap County Stormwater Design Manual 2016
2016KCSDM VOL II Chapter 4 Figures [pdf]
Kitsap County Stormwater Design Manual 2010 (Are you vested?)
Kitsap County Stormwater Design Manual 1997 ( Are you vested?)
Stormwater Pollution Prevention Plan (SWPPP) Brochure [pdf]
Stormwater Pollution Prevention Plan (SWPPP) Drawing Samples [pdf]
Rain Garden Handbook [pdf]
Stormwater Best Management Practices (BMP) Infeasibility Worksheet
Good to Know Terms