Designed as a “sole source” aquifer in 1978 by the federal Environmental Protection Agency. ‘Sole Source” means that the aquifer is our only affordable source of drinking water in a bi-state region serving drinking water to more than 500,000 people every day.
The Spokane Aquifer Joint Board is dedicated to protecting this sole source, through our Wellhead Protection Program and through citizen education and awareness. Visit our About page to learn more about us.
Part of our wellhead protection efforts involve our participation in the Aquifer Protection Council (APC). The APC is comprised of private and government agencies committed to protecting groundwater quality in the Spokane Valley-Rathdrum Prairie Aquifer. Washington purveyors and regulators meet on a monthly basis; when possible they meet with their Idaho counterparts. These agencies are working together to establish consistent ground and drinking water protection over the entire aquifer.
