700MILLIONGALLONS

King County Wastewater Treatment Division and Seattle Public Utilities are working together to bring GSI to our neighborhoods and manage rainwater runoff naturally. Our goal is to process 700 million gallons (enough water to fill over one thousand Olympic-sized swimming pools) of runoff every year with these eco-friendly methods... By examining how forests of the Northwest manage runoff from heavy rain, we're learning how to design and build effective and environmentally-friendly systems within a city's landscape that benefit human, marine, and aquatic health.