Resources

Learn more about Seattle's water system and its management.

Resources

The Shoreline Master Program (SMP) is mandated by the state Shoreline Management Act (SMA), created by citizen referendum in 1972, and includes the goals, policies, and regulations that govern land use and activities within the Seattle Shoreline District.
How rain runoff can be slowed and cleaned in your yard.
A variety of Seattle Public Utilities reports and research on water conservation.
The South Fork Tolt River is the smaller and lesser known (than the Cedar River) but still essential second supply watershed in SPU’s freshwater supply system. Located in the foothills of the Cascades in east King County, it supplies about 30% of the drinking water for 1.3 million people in and around Seattle.
Supplying the majority of Seattle's drinking water, the Cedar River Watershed has an education center, hosts tours and is carefully managed with a 50-year habitat conservation plan.
An interactive map (pdf) to see projects such as rain gardens, green roofs and habitat restoration.
Tip sheet on design, permitting and use of harvested rainwater.
The City of Seattle Stormwater Management Plan was developed for compliance with the Ecology-issued 2012 NPDES Phase I Municipal Stormwater Permit.
Covers green options for roofing your house, including green roofs and rainwater harvesting to protect and conserve water.
Providing value and accountability to you on the City's waste, water and drainage management.
You can help prevent flooding by paying attention to what’s happening with the drains on your block. A few small maintenance actions on your property can also prevent stormwater from ponding.