Tribal

This clearinghouse is a compilation of information on tribe antidegradation policies and implementation methods. The compiled antidegradation policies and implementation procedures are from authorized tribal water quality standards. These standards (and consequently, the antidegradation policies and implementation procedures) are either EPA-approved or were effective before May 30, 2000 for Clean Water Act purposes. Additional information.

This site will be updated periodically to reflect EPA approved revisions and additions to tribal antidegradation policies and implementation procedures.

Region 2: New Jersey, New York, Puerto Rico, Virgin Islands

Saint Regis Mohawk Tribe Water Quality Standards (PDF) (80 pp, 1.1MB)

Region 4: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee

• Miccosukee Tribe of Indians of Florida Water Quality Standards (PDF) (51 pp, 1.7MB)
• Seminole of Florida Water Quality Standards (PDF) (60 pp, 2.3MB)

Region 5: Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin

• Bad River Band of the Lake Superior Tribe of Chippewa Indians Water Quality Standards (PDF) (28 pp, 1.1MB)
• Mole Lake Band of the Lake Superior Tribe of the Chippewa Indians, Sokaogon Chippewa Community Water Quality Standards (PDF) (17 pp, 648K)
• The Fond du Lac Band of the Minnesota Chippewa Tribe Water Quality Standards (PDF) (49 pp, 3.9MB)
• Grand Portage Band of the Minnesota Chippewa Tribe Water Quality Standards (PDF) (31 pp, 189K)
• Lac du Flambeau Water Quality Standards (2010) (PDF) (39 pp, 6.7MB)

Region 6: Arkansas, Louisiana, New Mexico, Oklahoma, Texas

• Ohkay Owingeh (Pueblo of San Juan) Water Quality Standards (PDF) (40 pp, 1.8MB)
• Pueblo of Acoma Water Quality Standards (PDF) (55 pp, 2.4MB)
• Pueblo of Isleta Water Quality Standards (PDF) (33 pp, 2.1MB)
• Pueblo of Nambe Water Quality Standards (PDF) (27 pp, 1.4MB)
• Pueblo of Picuris Water Quality Standards (PDF) (36 pp, 1.5MB)
• Pueblo of Pojoaque Water Quality Standards (PDF) (34 pp, 1.5MB)
• Pueblo of Sandia Water Quality Standards (PDF) (51 pp, 1.2MB)
• Pueblo of Santa Clara Water Quality Standards (PDF) (47 pp, 429K)
• Pueblo of Taos Water Quality Standards (PDF) (28 pp, 1.8MB)
• Pueblo of Tesuque Water Quality Standards (PDF) (30 pp, 1.1MB)

Region 8: Colorado, Montana, North Dakota, South Dakaota, Utah, Wyoming

• Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation (PDF) (87 pp, 4.4MB)
• Surface Water Quality Standards and Antidegradation Policy (PDF) (72 pp, 962K)
• Water Quality Standards For Surface Waters of the Ute Mountain Ute Indian Reservation (PDF) (35 pp, 510K)

Region 9: Arizona, California, Hawaii, Nevada, Pacific Islands

• Big Pine Paiute Tribe of Owens Valley Water Quality Standards (PDF) (26 pp, 986K)
• Bishop Paiute Tribe Water Quality Control Plan (PDF) (68 pp, 3.1MB)
• Hoopa Valley Tribe Water Quality Standards (PDF) (285 pp, 3.9MB)
• Hopi Tribe Water Quality Standards (PDF) (44 pp, 537K)
• Hualapai Tribe Water Quality Standards (PDF) (61 pp, 152K)
• Navajo Nation Water Quality Standards (PDF) (42 pp, 210K)
• Pyramid Lake Paiute Tribe Water Quality Control Plan (PDF) (69 pp, 4.0MB)
• White Mountain Apache Water Quality Standards (PDF) (55 pp, 2.7MB)

Region 10: Alaska, Idaho, Oregon, Washington

• Confederated Tribes of the Chehalis Reservation Water Quality Standards (PDF) (28 pp, 1.8MB)
• Federal Water Quality Standards Regulations for the Confederated Tribes of the Colville Reservation (40 CFR 131.35)
• Confederated Tribes of the Umatilla Indian Reservation of Oregon Water Quality Standards (PDF) (60 pp, 2.9MB)
• Confederated Tribes of the Warm Springs Indian Reservation of Oregon Water Quality Standards (PDF) (59 pp, 13.4MB)
• Kalispel Indian Community of the Kalispel Reservation Water Quality Standards (PDF) (24 pp, 301K)
• Water Quality Standards for Surface Waters of the Lummi Indian Reservation (PDF) (72 pp, 349K)
• Makah Tribe Water Quality Standards for Surface Waters (PDF) (66 pp, 321K)
• Port Gamble S'Klallam Tribe Water Quality Standards (PDF) (36 pp, 1.8MB)
• Puyallup Tribe of Indians Water Quality Standards (PDF) (33 pp, 2.3MB)
• Spokane Tribe of Indians Water Quality Standards (PDF) (29 pp, 68K)

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