Chevron Questa Mine

⚠ Superfund · Cleanup underway

Chevron Questa Mine is in EPA's Superfund system for Questa, NM. The live record includes the official EPA identifiers, cleanup profile links, and whatever structured cleanup detail EPA currently exposes. EPA lists contamination in Leachate, Sediment, Groundwater, Surface Water, Soil, and Solid Waste. Most Recent Five-Year Review was reached on 08/02/2022.

Location

CityQuesta
CountyTaos County
StateNew Mexico
Coordinates36.70029, -105.49771

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 05/01/1980
  2. Proposed to the National Priorities List — 03/10/2011
  3. Proposed to the National Priorities List — 05/11/2000
  4. Finalized on the National Priorities List — 09/16/2011
  5. Remedial Investigation Started — 09/27/2001
  6. Remedy Selected — 12/20/2010
  7. Remedial Action Started — 07/09/2012
  8. Construction Completed — Not Yet Achieved
  9. Deleted from National Priorities List — Not Yet Achieved
  10. Most Recent Five-Year Review — 08/02/2022

EPA references

Understanding this Superfund site

Chevron Questa Mine is a federal Superfund site in New Mexico. 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, antimony, aroclor 1248. Contamination has been detected in leachate, sediment, groundwater, surface water, soil, solid waste.

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.