Water Quality Grants

The Environmental Health Unit (EHU) of the Cowlitz County Health & Human Services Department (HHS) administers water quality grants funded jointly by Washington State Department of Ecology (ECY) through the Centennial Clean Water Program and HHS. As projects are completed, specific water quality results are available on ECY's Environmental Information Management System. See below for more information about each grant awarded.

Check out our printable brochure on ways to help Silver Lake, or any lake!

For information on protecting Washington waters, visit Ecology's website.

If you have questions or comments regarding the water quality program, contact Hilarie Larson, REHS, at LarsonH@co.cowlitz.wa.us.

Awarded Grants

WQC-2015-CwCoHH-00129

In April of 2015 work was started on the study Water Quality Testing & Improvement at Two Cowlitz County Lakes. Specific results are available on ECY's Environmental Information Management System. A project summary is provided in the Project Outcome Summary Report.

Testing was conducted on Silver Lake from September 2015 to February of 2018. Planning documents available include the Quality Assurance Project Plan and Standard Operating Procedures. Summary of results are available in the Final Report – Silver Lake.

Testing was conducted on Horseshoe Lake from March 2016 to February 2018. Planning documents available include the Quality Assurance Project Plan and Standard Operating Procedures. Summary of results are available in the Final Report – Horseshoe Lake.

For more information, click here to view a presentation given to the BOH in July 2016.

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WQC-2018-CwCoHH-00092

In September of 2018 work was started on the study Silver Lake Sediment and Water Quality Testing Plus Engagement Project. Results will include two years of testing the lake and the inlet streams on a monthly basis, and one sediment testing event of the lake bottom.

One grant goal included making the typed Silver Lake Watershed Management Plan more available to the public by transferring it to a digital format. The original document was written in 1994 by Cowlitz County Conservation District and included Darin B Houpt, Forest Hydrologist, and Resource Technicians Joanne Aylesworth and Steve Stinson. Please click the following links to access this document.