Groundwater Monitoring

The Spokane Valley Rathdrum Prairie Aquifer (SVRP Aquifer) is the sole source of water for over 500,000 people in Spokane County, WA and Kootenai County ID, this underground water-bearing rock formation is one of the region's most important resources. The aquifer is unique both for it's fast flowing and generous water supply, and for it's high susceptibility to contamination.

Since 1977 Spokane County has been monitoring water quality conditions in the aquifer.  Currently Water Resources staff collect samples on a quarterly basis from 29 monitoring wells and 16 public supply wells.  Objectives of the groundwater monitoring program include:

Public Works

Utilities

Water Resources

Groundwater Monitoring

Watershed Planning

Phosphorus Non Point Source Assessment

Water Conservation

Public Outreach/ Education

Section Manager: Rob Lindsay
Public Works Building 1026 W. Broadway, Spokane, WA 
Phone: (509) 477-3604 Fax: (509) 477-4715

• Establish the areal distribution of ground water quality from a network of wells covering the SVRP Aquifer recharge area
• Identify water quality impacts from activities on the land surface
• Collect long term data from wells to establish water quality trends,
• Evaluate the potential water quality impacts of aquifer discharge on river quality

• SVRP Aquifer Atlas

• USGS SVRP Aquifer Technical Information

• Spokane Aquifer Joint Board
  Elementary School Aquifer Tour

• Spokane Aquifer Joint Board
  Middle School Aquifer Tour

• EWU Geology Dept SVRP Aquifer Tour
  

• Bi-State Aquifer Study

• Hydrogeology of the West Plains
  

• Monitoring Well Map

• List of Analytes

• Quality Assurance Program Plan

• Annual Groundwater Monitoring Report (2006)