

Twenty-Nine Palms Band of Mission Indians (CA) Shoshone-Paiute Tribes of the Duck Valley Reservation (NV) Shoshone-Bannock Tribes of the Fort Hall Reservation (ID) Salt River Pima-Maricopa Indian Community (AZ) Sac and Fox Tribe of the Mississippi in Iowa (Meskwaki) (IA)

Rincon Band of Luiseño Mission Indians (CA) Ohkay Owingeh (NM) (formerly the Pueblo of San Juan) Sokaogan Chippewa Community (formerly Mole Lake Band) (WI) La Posta Band of Diegueno Mission Indians of the La Posta Indian Reservation (CA) Lac du Flambeau Band of Lake Superior Chippewa (WI) Grand Portage Band of Minnesota Chippewa (MN) Kletsel Dehe Wintun Nation (CA) (formerly the Cortina Indian Rancheria)ĭry Creek Rancheria Band of Pomo Indians (CA)įond du Lac Band of Minnesota Chippewa (MN) EPA Approvals of Tribal Water Quality Standards Tribeĭate Found Eligible to Administer a WQS Program (TAS)Īssiniboine and Sioux Tribes of the Fort Peck Indian Reservation (MT)īad River Band of Lake Superior Chippewa (WI)īig Pine Paiute Tribe of the Owens Valley (CA)Ĭhemehuevi Tribe of the Chemehuevi Reservation (CA)Ĭonfederated Salish and Kootenai Tribes of the Flathead Reservation (MT)Ĭonfederated Tribes of Coos, Lower Umpqua, and Siuslaw Indians (OR)Ĭonfederated Tribes of the Chehalis Reservation (WA)Ĭonfederated Tribes of the Colville Reservation (WA)Ĭonfederated Tribes of the Goshute Reservation (NV, UT)Ĭonfederated Tribes of the Warm Springs Reservation (OR)Ĭonfederated Tribes of the Umatilla Indian Reservation (OR) Under EPA’s regulations, tribes that have been approved to administer WQS are automatically approved to administer certifications under Clean Water Act section 401, although a few such tribes may have chosen not to exercise that authority. EPA has promulgated federal WQS for 1 tribe (Colville Reservation) listed in the chart but not included in the above total for approved WQS. Currently, 84 tribes have been found eligible to administer a WQS program, and EPA has approved WQS for 47 of these tribes. A tribe may administer a WQS program if it applies and EPA finds that it qualifies under Section 518(e) of the Clean Water Act to be treated in a manner similar to a state (“TAS”). The following chart lists EPA approvals for tribes to administer a water quality standards (WQS) program, and EPA’s approvals of those tribes’ WQS.

Revised Interpretation of Clean Water Act Tribal Provision.
