EPA in Nevada

EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal nations.

  • Topics and Resources

    Lake Mead, NV. Photo courtesy of the National Park Service

    Topics and resources for Nevada-specific projects and programs in Air, Environmental Justice, Tribal Nations, Land, and Water.

    Topics and Resources »

  • Lake Tahoe

    Lake Tahoe Basin (Photo courtesy of Tahoe Regional Planning Agency (TRPA))

    Information on the Lake Tahoe watershed including EPA's protection efforts, water quality issues, effects of climate change, Lake Tahoe Total Maximum Daily Load (TMDL), EPA-sponsored projects, and partner agencies.

    Lake Tahoe »

  • Carson River Mercury Superfund Site

    Health Advisory sight that informs that fish in these water contain high levels of mercury and should not be eaten (English an Spanish)

    In 1990, the Carson River Mercury Superfund Site became part of the National Priorities List. The Carson River Mercury Superfund Site covers five counties, about 330 square miles and more than 130 river miles in Northwestern Nevada. Learn about the site and EPA’s role in cleaning it up.

    Carson River Superfund Site »
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Last updated on April 17, 2025