Programs & Policies

Seattle Public Utilities leads many City programs to conserve, protect and manage Seattle's water. They oversee watershed plans, monitor clean water regulations, deliver innovative conservation programs and incentives, and manage the drainage system. Some conservation-related programs are listed below; more about the water system and services can be found on SPU's water system page.

Residents have a critical role to play as well, whether it's by helping save water or using green gardening practices to reduce pollutants in our water. Visit the What You Can Do section for more ideas.

Programs & Policies

Seattle Public Utilities' RainWise program provides resources, tools and incentives to help you manage stormwater at home, reduce flooding and protect Seattle's water.
Seattle will manage 700 million gallons of stormwater with green infrastructure by 2025.
City of Seattle’s commitment to take actions and promote partnerships that protect and improve our creeks, lakes, the Duwamish River and Puget Sound.
The City's long-term plan and projects required to prevent sewer and stormwater overflows during heavy rain events. This work is led by Seattle Public Utilities, with the Office of Sustainability and Environment involved in developing citywide policies on green stormwater infrastructure as one element of overflow prevention.

Codes & Regulations

Our stormwater regulations protect people, property, and the environment from damage caused by stormwater runoff. Our stormwater codes also satisfy the City’s obligation to comply with our Municipal Stormwater Discharge National Pollutant Discharge Elimination System (NPDES) Permit, issued by the Washington State Department of Ecology.

Strategic Plans

The City of Seattle Stormwater Management Plan was developed for compliance with the Ecology-issued 2012 NPDES Phase I Municipal Stormwater Permit.