Colorado Department of Public Health and the Environment Highway 24 Mill Site Records

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Collection NumberMSS 0591CreatorColorado Department of Public Health and the EnvironmentDescriptionThe records in this collection relate to the U.S. Environmental Protection Agency (EPA) and Colorado Department of Public Health and the Environment (CDPHE) Highway 24 Mill Site soil cleanup project.

The Highway 24 Mill Site is in Colorado Springs near the historic Golden Cycle Mill and tailings pile. The Site includes the A-1 Mobile Home village. Due to the proximity of residences to a tailings pile and historic milling activities, EPA began investigating heavy metals contamination in soils in 2022.EPA partnered with the CDPHE to clean up the soils at the site.

In January 2024, EPA updated its guidance on lead in residential soils, lowering the screening level. In 2025, EPA released updated toxicity values for arsenic. At the Highway 24 Mill Site, previous sampling identified lead and arsenic above these levels. With cleanup of residential soils at the A-1 Mobile Village deemed necessary to protect human health, EPA is funding CDPHE to clean up soils at the A-1 Mobile Home Village. Cleanup will begin in 2025.

Description information from EPA website (https://response.epa.gov/site/site_profile.aspx?site_id=16439). Finding AidColorado Department of Public Health and the Environment Highway 24 Mill Site RecordsSubjectSoil testingPublic healthEnvironmentRelated MaterialHwy 24 Mill Site Profile

Colorado Department of Public Health and the Environment Highway 24 Mill Site Records

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Colorado Department of Public Health and the Environment Highway 24 Mill Site Records