Carson River Mercury Superfund Site

The Carson River basin, from New Empire to Stillwater and the Carson Sink, was designated as a National Priority Listed (NPL) site due to historic mining activity under the Comprehensive Environmental Response Compensation and Liability Act (CERCLA or Superfund) in August, 1990. This is Nevada's only NPL site and is being jointly managed by NDEP and the U.S. Environmental Protection Agency 9 (EPA), Region IX, in San Francisco.

Site Documents

• Operable Unit 1 Long Term Sampling and Response Plan (LTSRP) for Residential Development [pdf] — 2018
• Screening/Action Level for Arsenic in Surface Soil in the Carson River Basin [pdf]
• Mill Site Archaeological Study Fact Sheet [pdf]
• Durable Notification Mechanisms (e.g., Environmental Covenants) [website]

Presentations about the Carson River Mercury Superfund site

• Carson River Mercury Site Informational Presentation [pdf] — 2012
• CRMS Management Strategies and Goals Presentation [pdf] — 2011
• Carson River Mercury Site Presentation [pdf] — 2015

Map Files

• Entire Carson River Mercury Site Risk Area Topo Map [pdf]
• Updated Mill Site Location Map [pdf]
• Updated Risk Zone Orthophoto Map [pdf]
• Updated Risk Zone Topographic Map [pdf]

Related Web Pages

• EPA’s Carson River Mercury Superfund Site StoryMap [web map]
• NDEP Durable Notification Mechanism Parcel Map [web map]