Draft Model Remedies for Cleanup of Inactive and Abandoned Mine Lands in Washington

Washington has a legacy of mining activity, and that history has led to thousands of inactive and abandoned mines across the state. Many of these inactive and abandoned mines are ongoing sources of contamination that include high concentrations of metals in soil. This draft guidance provides property owners simple sampling and cleanup instructions for mine waste piles. 

As part of this review, Ecology will also consider other model remedy proposals for mine waste piles from qualified persons. Any proposals must describe the model remedy and provide information regarding its applicability for use, as well as the site characterization and compliance monitoring required under WAC 173-340-350 and WAC 173-340-410. It should also describe how the model remedy meets the cleanup standards  and cleanup action requirements in WAC 173-340-360.

Learn more

• Review the draft Model Remedies for Cleanup of Inactive and Abandoned Mine Lands in Washington guidance (Publication 24-09-024).
• Visit our Model remedies under the Model Toxics Control Act webpage.