Demands in the Little Spokane River Aquifer:
During the District’s Water System Planning process in 2018, it was determined that additional District source capacity was required to support future growth within the LSR. The most cost effective and timely approach would have been for the District to construct additional wells in the Little Spokane river aquifer. Given the Hirst decision and resulting RCW 90.94, the District decided to play a leadership role and avoid further increasing Little Spokane river aquifer deficits in an already taxed and fragile watershed system.
Instead of increasing impacts to the LSR, the District developed a plan to drill a series of wells and transport that supply through new transmission lines from the SVRP up to the service area of the LSR. To date, the District has invested over $7.3 million toward these improvements (see map above), which have included:
- Acquisition of property for three new groundwater wells to be developed in Spokane Valley Rathdrum Prairie aquifer for use in WRIA 55.
- 9,500 feet of 24-inch transmission main (Phase I) connecting District WRIA 57 wells to its WRIA55 service area.
- Development and activation of District Well 3D (4,300 gallons per minute).