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Site Documents & Maps

EPA maintains an online repository of publicly available documents related to this Superfund site. For your convenience, this page provides links to some of the most commonly referenced documents.

If you are having trouble finding what you are looking for, or if you need special accommodation to access or read these files, please use the Contact Us link in the left menu bar of this page.

On this page:

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Featured Documents
Community Involvement and Fact Sheets
Decision Documents
Maps

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Featured Documents

First Five Year Review, January 2023 (pdf) (47pp, 14MB)
Screening Level Ecological Risk Assessment for Operable Unit 2, 2024 (pdf) (137 pp, 16 MB)

Community Involvement and Fact Sheets

Residential Brochure revised March 2025 (pdf) (2 pp, 2.5 MB, About PDF)
- Folleto residencial revisado en Marzo de 2025 (pdf) (2 páginas, 2.6 MB)
Commercial Brochure revised March 2025 (pdf) (2pp 3.6 MB)
- Folleto comercial revisado en Marzo de 2025 (pdf) (2 páginas, 3.1 MB)
Fact Sheet About Electric Arc Furnace Slag at Colorado Smelter (pdf) (2 pp, 1.5 MB)
- Hoja informativa sobre la escoria Electric Arc Furnace en el Colorado Smelter (pdf) (2 páginas, 980 K)
Colorado Smelter 2019 Community Involvement Plan update final (pdf) (21 pp, 3.71 MB)

Decision Documents

Interim Record of Decision for Residential Properties in OU1, 2017 (pdf) (150 pp, 7.59 MB)
Explanation of Significant Differences for Residential Properties, 2024 ESD (pdf) (9 pp, 1.2 MB)

Maps

Boundaries of the Colorado Smelter Site and Area Neighborhoods — Click image to see larger version of Colorado Smelter Site and Area Neighborhoods map.

Print friendly version: Colorado Smelter Site June 2023 (pdf)

Colorado Smelter Site Map — Click image to see larger version of Colorado Smelter Site map.

Print friendly version: Colorado Smelter Site Map (pdf)

Colorado Smelter Site Study Expansion Area — Click image to see larger version of Colorado Smelter Site Study Area Expansion map.

Print friendly version: Colorado Smelter Site Study Expansion Area Sept. 2022 (jpg)