Groundwater Assessment

Lower Yakima Valley Groundwater Management Area Technical Support

In 2011, the Washington State Department of Ecology provided funding to support the formation of a Groundwater Management Area (GWMA) for the Lower Yakima Valley. The GWMA was initiated in response to nitrate contamination found in drinking-water wells in the valley. Hydrogeologists provide groundwater technical support to the Central Regional Office of Ecology's Water Quality Program in relation to GWMA activities.

Lower Yakima Valley Groundwater Quality is a page on the project at the Water Quality Program.

Lower Yakima Valley Groundwater is a page at the US Environmental Protection Agency.

For more information:

Melanie Redding, melanie.redding@ecy.wa.gov, (360) 407-6524