Groundwater Management Area
The purpose of the Groundwater Management Area is to reduce the nitrate contamination concentrations in groundwater below state drinking water standards.
April 13, 2017 Draft Nitrogen Loading Assessment Presentations:
- 2017_04_13 Irrigated Crops Nitrogen Mass Balance Table (12-29-16 P. Beale)
- 2017_04_13 Nitrogen Cycle and Composting_WSU
Does your drinking water come from a private well? Check out these resources:
Learn about nitrates, where the Lower Valley Ground Water Management Area (GWMA) is located and view frequently asked questions.
Learn about the members of the Lower Valley Groundwater Advisory Committee (GWAC) and see general information about the meetings.
Learn about the various work groups and the work they are doing to address nitrates in the groundwater.
Learn about the history of the Lower Valley Groundwater Management Area and view various articles, reports, and research.
May 19, 2016 Inspire Health Fair
Draft GWMA Program Chapters as required under WAC173-100-100