Laws & Regulations
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CA0109991 (Order R4-2023-0033): City of Los Angeles Hyperion Water Reclamation Plant
Joint EPA and State NPDES Permit No. CA0109991, Order No: R4-2023-0033, City of Los Angeles Hyperion Water Reclamation Plant (HWRP), 12000 Vista del Mar Boulevard, Playa del Rey, CA 90293.
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CA0063401: West Basin Municipal Water District Edward C. Little Water Recycling Plant, El Segundo, CA
Documents related to the City of San Diego E.W. Blom Point Loma Wastewater Treatment Plant Joint EPA and State NPDES Permit and Waiver From Secondary Treatment.
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NN0022179: Peabody Western Coal Company Black Mesa Mine Complex, Navajo County, AZ
NPDES Permit #NN0022179 forPeabody Western Coal Company (PWCC), Black Mesa/Kayenta Mine Complex.
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NN0029386: Chevron Mining Inc. McKinley Mine, Gallup, NM
NPDES Permit #NN0029386 for the Chevron Mining, Inc. McKinley Mine to tributaries to the Puerco River located on Tribal, private, and public lands within the Navajo Nation and near the Arizona border in New Mexico.
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UIC Permit for Badami Unit, North Slope, Alaska
EPA Underground Injection Control permit for the Badami Unit, North Slope, Alaska.
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NN0020265: Navajo Tribal Utility Authority (NTUA) Chinle Wastewater Treatment Lagoon, Chinle, AZ
NPDES Permit No. NN0020265 for Navajo Tribal Utility Authority Chinle Wastewater Treatment Facility.
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NN0020133: Capitol Operating Group, LLC, English Lease Boundary Butte, San Juan County, UT
EPA Fact Sheet and final authorization to discharge under National Pollutant Discharge Elimination System (NPDES) Permit No. NN0020133 for Capitol Operating Group, LLC English Lease Boundary Butte.
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NN0020290: NTUA Tuba City Wastewater Treatment Facility, Tuba City, AZ
NPDES Permit and Fact Sheet explaining EPA's action under the Clean Water Act to issue NPDES Permit No. NN0020290 to NTUA Tuba City Wastewater Treatment Facility, Tuba City, AZ.
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NN0020958: BIA Wingate High School Wastewater Treatment Facility, Fort Wingate, NM
NPDES Permit and Fact Sheet explaining EPA's action under the Clean Water Act to issue NPDES Permit No. NN0020958 to Bureau of Indian Affairs (BIA) Wingate High School Wastewater Treatment Lagoon, Fort Wingate, NM.
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NN0021555: NTUA Window Rock Wastewater Treatment Facility, Window Rock, AZ
NPDES Permit and Fact Sheet explaining EPA's action under the Clean Water Act to issue NPDES Permit No. NN0021555 to NTUA Window Rock Wastewater Treatment Lagoon.
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NN0022195: NTUA Ganado Wastewater Treatment Lagoon, Apache County, AZ
NPDES Permit #NN0022195 for Navajo Tribal Utility Authority (NTUA) Ganado Wastewater Treatment Lagoon.
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NN0030325: Ramah Navajo School Board Inc. Pine Hill School, Pine Hill, NM
NPDES Permit and Fact Sheet explaining EPA's action under the Clean Water Act to issue NPDES Permit No. NN0030325 to Ramah Navajo School Board, Inc. Pine Hill School.
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NN0025178: Goulding's Lodge WWTF; Monument Valley, UT (Navajo Nation)
Authorization to Discharge Under National Pollutant Discharge Elimination System (NPDES) Permit No. NN0025178 for RGJ Inc. doing business as Goulding’s Lodge, Monument Valley, San Juan County, Utah.
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NN0000019: Arizona Public Service Company Four Corners Power Plant, San Juan County, NM
NPDES Permit #NN0000019 for Arizona Public Service Company (APS) Four Corners Power Plant, San Juan County, New Mexico 87416.
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NN0020800: BIA Nenahnezad Community School Wastewater Treatment Plant, Fruitland, NM
NPDES Permit #NN0020800 for Bureau of Indian Affairs (BIA) Nenahnezad Community School wastewater treatment plant (“WWTP”), Fruitland, NM.
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NN0030345: Navajo Engineering and Construction Authority (NECA) Navajo Nation Municipal Pipeline Project, Shiprock, NM
NPDES Permit #NN0030345 for Navajo Engineering and Construction Authority Navajo Nation Municipal Pipeline Project, Shiprock, NM.
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NN0028193: Navajo Transitional Energy Company (NTEC); Navajo Coal Mine, Fruitland, NM
NPDES Permit #NN0028193 for Navajo Transitional Energy Company/Bisti Fuels LLC Navajo Coal Company Navajo Mine, San Juan County, NM.
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NN0021610: Cameron Trading Post Wastewater Treatment Facility; Cameron, AZ
NPDES Permit No. NN0020265 and Fact Sheet for Cameron Trading Post, Cameron Trading Waste Water Treatment Facility, 466 Highway 89A, Cameron, Arizona 86020.
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NN0030344: NTUA Twin Arrows Navajo Casino Wastewater Treatment Facility, Flagstaff, AZ
NPDES Permit and Fact Sheet explaining EPA's action under the Clean Water Act to issue NPDES Permit No. NN0030344 to Navajo Tribal Utility Authority (NTUA) Twin Arrows Navajo Casino Wastewater Treatment Facility, Twin Arrows, AZ.
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NN0020281: NTUA Kayenta Wastewater Treatment Facility, Kayenta, AZ
NPDES Permit #NN0020281 for Navajo Tribal Utility Authority Kayenta Wastewater Treatment Lagoon.