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

Details

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

PDF

HWY 24_SI Appendix B Trip Report_ no attachment or appendices

HWY 24_Site Inspection Report

Hwy 24_SI Appendix B Trip Report Attchment 1

Hwy 24_SI Appendix B Trip Report Attchment 2

Hwy 24_SI Appendix B Trip Report Appendix B

Hwy 24_SI Appendix B Trip Report Appendix A

Garner Street Soils_Letter Report_Final_Rev3

Final PRG memo_12.18.24

Final Streamlined Risk Evaluation_12.18.24

Analytical Results Report Site Inspection - Gold Hill 1994

1995 sampling activities report 08-483813

Preliminary Assessment - Gold Hill 1993.pdf

Preliminary Assessment Report - Hwy 24 Mill 2022

English Recording.transcript of Community Meeting 2

Regional Screening Levels RSLs - Equations _ US EPA

IRIS Toxicological Review of Inorganic Arsenic Public Comment and External Review Draft _ IRIS _ US EPA

Spanish Highway 24 One pager

HW 24 fact sheet_11.20.24

HW 24 fact sheet Spanish version_11.20.24

Highway 24 Mill Site Community Meeting One-Pager

DEHS_TEEO_Lead and Health_ES_022022 8

DEHS_TEEO_Lead and Health_032024_ENGLISH 1

Dirt Alert combined

Video

Community Meeting Video March 4 2025

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