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EPA Region 9 (Pacific Southwest)

San Francisco to Oakland Bay Bridge
EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

Map of EPA Region 9Arizona California Hawaii Nevada
Arizona, California, Hawaii, Nevada, Pacific Islands, 148 Tribes

Popular Topics

  • Air Permits
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  • Navajo Nation: Cleaning Up Abandoned Uranium Mines
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Latest Pacific Southwest News

  • EAN Holdings, Operator of Enterprise Rent-A-Car in Hilo, to Pay $132K to Resolve Claim of Drinking Water Violations

  • Two Organizations in California Receive EPA Grants to Combat Food Waste, Climate Change

  • Biden-Harris Administration Announces $9.9 Million from EPA’s Clean School Bus Program for Guam Schools

  • EPA Proposes Cleanup Plan for Sulphur Bank Mercury Mine Superfund Site in Lake County, Calif.

  • EPA Proposes Settlement to Protect Sacramento River Endangered Species

All Pacific Southwest News Releases

Tweets by @EPAregion9

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Contact Us to ask a question, provide feedback, or report a problem.
Last updated on January 25, 2023
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