Anaconda Copper Mine

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Proposed NPL Site

Yerington, NV

Anaconda Copper Mine is listed in the EPA Superfund Enterprise Management System with an NPL status of Proposed NPL Site and a Hazard Ranking System (HRS) score of 50.00. The site is located in Yerington, NV. Superfund National Priorities List inclusion is the EPA's formal designation that a contaminated site qualifies for long-term federal cleanup authority under the Comprehensive Environmental Response, Compensation, and Liability Act.

EPA Superfund records catalog 20 contaminants associated with this site, documented through the remedial investigation process. Construction of the cleanup remedy has not yet been designated as complete in the EPA record.

NPL listing does not, by itself, establish a health risk to nearby residents, it triggers federal authority to investigate, score, and remediate. HRS scores of 28.50 or above qualify a site for the NPL; the ranking weighs contaminant toxicity, release pathways, waste quantity, and affected population. For current site conditions and community health guidance, contact the Nevada environmental or health agency and the EPA Regional Superfund office listed on the official site profile.

What is the cleanup status of this Superfund site?

NPL Status
Proposed NPL Site
Federal Facility
No
Construction Complete
No
HRS Score
50.00
Deleted from NPL
No

Contaminants

Contaminant Media
ARSENIC Liquid Waste
ARSENIC Sediment
ARSENIC Sludge
ARSENIC Solid Waste
CHROMIUM Liquid Waste
CHROMIUM Sludge
CHROMIUM Solid Waste
COBALT Solid Waste
COPPER Solid Waste
LEAD Sediment
MOLYBDENUM Sediment
RADIUM-226 Sediment
RADIUM-228 Sediment
RADIUM-228 Soil
RADIUM-228 Solid Waste
SELENIUM Sediment
URANIUM Liquid Waste
URANIUM Sludge
URANIUM-238 Solid Waste
ZINC Sediment

Location

City
Yerington
State
Coordinates
38.9903, -119.1871

Other Superfund Sites in Nevada

Site Name Status HRS Score
Carson River Mercury Site NPL Site 39.07

Frequently Asked Questions

What is the Anaconda Copper Mine Superfund site?
Anaconda Copper Mine is a proposed NPL Superfund site located in Yerington, NV. It has a Hazard Ranking System (HRS) score of 50.00. Superfund sites are contaminated locations identified by the EPA for long-term cleanup.
Is Anaconda Copper Mine dangerous to live near?
The presence of a site on the EPA National Priorities List does not by itself indicate an immediate health risk to nearby residents. EPA evaluates sites through a comprehensive process including remedial investigation and risk assessment. Cleanup activities may still be ongoing. For site-specific health questions, contact your state environmental or health agency.
What is the HRS score for Anaconda Copper Mine?
Anaconda Copper Mine has a Hazard Ranking System (HRS) score of 50.00. The HRS is the EPA's principal mechanism for evaluating Superfund sites, scores of 28.50 or greater qualify for the NPL. Higher scores indicate greater potential risk based on toxicity, waste quantity, release likelihood, and affected population.
What contaminants are at the Anaconda Copper Mine site?
The EPA has identified 20 contaminants at Anaconda Copper Mine. Contaminant data is maintained in the EPA's Superfund database and is based on site investigations conducted during the remedial process.
What is the cleanup status of Anaconda Copper Mine?
Anaconda Copper Mine is currently Proposed NPL Site on the National Priorities List. The EPA Superfund cleanup process includes phases from preliminary assessment through post-construction completion.

About Superfund

The National Priorities List (NPL) is the list of sites of national priority among the known releases or threatened releases of hazardous substances, pollutants, or contaminants throughout the United States. The NPL is intended primarily to guide the EPA in determining which sites warrant further investigation.

The Hazard Ranking System (HRS) score is the principal mechanism the EPA uses to evaluate sites for placement on the NPL. Sites with an HRS score of 28.50 or greater are eligible for the NPL. Higher scores indicate greater potential risk.

The EPA's Superfund cleanup process typically follows these phases: preliminary assessment, site inspection, NPL listing, remedial investigation/feasibility study, remedy selection, remedial design/action, construction completion, post-construction completion, and NPL deletion. Some sites remain on the NPL for decades.

PlainEnviro presents this data without advocacy framing. The presence of a site on the NPL does not by itself indicate an immediate health risk to nearby residents. For site-specific health questions, consult your local environmental or health agency.

Related

Data sourced from the U.S. Environmental Protection Agency (EPA). See our methodology for details. Retrieved and formatted by PlainEnviro Editorial