This page provides information about CWA 401 water quality certifications on tribal lands in the Pacific Southwest and associated consultation information about an upcoming Nationwide Permit renewal.
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EPA’s Water Quality Certifications on Tribal Lands of the Pacific Southwest (PDF)(2 pp, 739 K,
December 2016)
This fact sheet describes CWA 401 water quality certifications for tribal lands in the Pacific Southwest.
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US EPA Region 9 Conditional CWA §401 Certification of the 2017 NWPs for Projects on Applicable Tribal Lands (PDF)(20 pp, 6 MB,
February 22, 2017)
This letter contains the general and permit-specific conditions of EPA's Programmatic Clean Water Act Section 401 certification of the 2017 Nationwide Permits for tribal lands in California, Nevada, and Arizona.
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Nationwide Permit 401 Certification Tribal Consultation Letter for 2017 (PDF)(2 pp, 868 K,
November 14, 2016)
This letter was sent to tribes to inform them of the upcoming renewal of Nationwide Permits/Section 401 Certifications.