Central City Clear Creek

⚠ Superfund · Cleanup underway

Based on the October 2025 Lead Directive , the EPA is evaluating the risks from lead in soils/yards. Lead can pose risks to sensitive populations, especially children under 7 years old and pregnant or nursing women. Implementing the Lead Directive will involve additional planning, data gathering, and analysis.

Location

CityIdaho Springs
CountyClear Creek County
StateColorado
Coordinates39.77182, -105.51817

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 06/01/1982
  2. Proposed to the National Priorities List — 12/30/1982
  3. Finalized on the National Priorities List — 09/08/1983
  4. Remedial Investigation Started — 09/23/1983
  5. Remedy Selected — 09/30/1987
  6. Final Remedy Selected — 09/25/2006
  7. Remedial Action Started — 03/29/1989
  8. Construction Completed — Not Yet Achieved
  9. Deleted from National Priorities List — Not Yet Achieved
  10. Most Recent Five-Year Review — 05/13/2024

EPA references

Understanding this Superfund site

Central City Clear Creek is a federal Superfund site in Colorado. The Superfund program, created by Congress in 1980, addresses sites where hazardous substances have been released or threaten release into the environment. EPA scores potential sites using the Hazard Ranking System; those that score high enough are placed on the National Priorities List.

Current status: Cleanup underway. Active cleanup is underway, meaning EPA has approved a remediation plan and work is in progress. Cleanup timelines vary widely — some sites take decades depending on contamination depth, groundwater involvement, and funding availability.

EPA has identified 10 contaminants of concern at this site, including aluminum, arsenic, cadmium. Contamination has been detected in surface water, solid waste, groundwater, sediment.

If you live near this site and have health concerns, your state health department can provide site-specific guidance. EPA maintains a community involvement program for most NPL sites, and site documents — including the Record of Decision, five-year reviews, and public health assessments — are typically available through EPA's Superfund site profile.