Spokane Valley–Rathdrum Prairie Aquifer
The Spokane Valley–Rathdrum Prairie Aquifer is an aquifer located in the U.S. states of Washington and Idaho
The aquifer is centralized under Spokane Valley and the Rathdrum Prairie, hence the name.
The aquifer contains 10 trillion gallons of water, and is part of the Columbia River Drainage Basin. The only watercourse that remains above the surface for an extended distance is the Spokane River. The area surrounding it receives an average of of rain annually. The aquifer is the primary water source for the greater Spokane area, which is home to over 700,000 people.
