Clean Air Act Permit Actions in EPA's Pacific Southwest (Region 9)

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

On this page:

EPA is the Clean Air Act permitting authority in those areas that do not have an EPA-approved or delegated program. In Region 9, this includes most Tribal lands and some non-tribal lands.

The tables below include pending and final permitting actions issued by EPA since 2006. For more information, please contact us at R9AirPermits@epa.gov.

Pending Region 9 Permit Actions

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Clean Air Act Permit Actions Under Review in EPA's Pacific Southwest (Region 9)
Source NameSource TypeAction TypeDocket No.City or CountyStateTribeContact
Red Hawk CasinoCasino/EngineNSR: Minor Modification,
Synthetic Minor Limit(s)		EPA-R09-OAR-2025-1841PlacervilleCAShingle Springs
Band of Miwok
Indians		Catherine Valladolid
valladolid.catherine@epa.gov
McElmo Creek Unit, Area 4 Tank BatteryOil and GasNSR: New Minor Source,
Part 2 FIP Registration		EPA-R09-OAR-2024-0632San Juan CountyUTNavajo NationChrista Leska
leska.christa@epa.gov
Ratherford Water Injection Plant Mud PlantOil and GasNSR: New Minor Source,
Part 2 FIP Registration		EPA-R09-OAR-2024-0633San Juan CountyUTNavajo NationChrista Leska
leska.christa@epa.gov
NNOGC Jenny 36 #1Oil and GasNSR: New Minor Source,
Part 2 FIP Registration		EPA-R09-OAR-2022-0824San Juan CountyUTNavajo NationChrista Leska
leska.christa@epa.gov
NNOGC Blue Hogan West I #1Oil and GasNSR: New Minor Source,
Part 2 FIP Registration		EPA-R09-OAR-2022-0825San Juan CountyUTNavajo NationChrista Leska
leska.christa@epa.gov
Cache Creek Casino ResortCasino/EnginesTitle V: InitialEPA-R09-OAR-2021-0864BrooksCAYocha Dehe
Wintun Nation		Noelle Mushro
mushro.noelle@epa.gov
Tule River Eagle Mountain CasinoCasinoNSR: New Minor Source,
Synthetic Minor Limit(s)		EPA-R09-OAR-2022-0778Tulare CountyCATule River TribeNidia Trejo
trejo.nidia@epa.gov
Colorado Sand and Rock - EhrenbergCrusher and
Concrete
Batch Plant		NSR: Synthetic MinorEPA-R09-OAR-2023-0086EhrenbergAZColorado River
Indian Tribes		Christa Leska
leska.christa@epa.gov
South Point Energy CenterPower PlantTitle V: RenewalEPA-R09-OAR-2023-0196Mohave ValleyAZFort Mojave
Indian Tribe
of Arizona,
California
& Nevada		Catherine Valladolid
valladolid.catherine@epa.gov
Mobil Oil Saipan TerminalRefineryTitle V: RenewalEPA-R09-OAR-2023-0363SaipanMPN/ANoelle Mushro
mushro.noelle@epa.gov
NNOGC Big Boy 22 #1Oil and GasNSR: New Minor Source,
Part 2 FIP Registration		EPA-R09-OAR-2023-0373San Juan CountyUTNavajo NationChrista Leska
leska.christa@epa.gov
NNOGC Desert Creek Wash 34 #1Oil and GasNSR: New Minor Source,
Part 2 FIP Registration		EPA-R09-OAR-2023-0374San Juan CountyUTNavajo NationChrista Leska
leska.christa@epa.gov
EPNG Window Rock Compressor StationCompressor
Station		PSD/NSR: Non-Major
Modification		EPA-R09-OAR-2023-0611St. MichaelsAZNavajo NationTina Su
su.tingzhi@epa.gov
Ratherford Unit Tank Battery 2Oil and GasNSR: New Minor Source,
Part 2 FIP Registration		EPA-R09-OAR-2024-0450San Juan CountyUTNavajo NationChrista Leska
leska.christa@epa.gov
Ratherford Unit Tank Battery 1Oil and GasNSR: New Minor Source,
Part 2 FIP Registration		EPA-R09-OAR-2024-0522San Juan CountyUTNavajo NationChrista Leska
leska.christa@epa.gov
Hard Rock Hotel & Casino TejonCasinoNSR: New Minor Source,
Synthetic Minor Limit(s)		EPA-R09-OAR-2024-0524Kern CountyCATejon Indian TribeCatherine Valladolid
valladolid.catherine@epa.gov
Salt River LandfillLandfillTitle V: AdministrativeEPA-R09-OAR-2025-0123ScottsdaleAZSalt River Pima-Maricopa
Indian Community of the
Salt River Reservation		La Weeda Jones
jones.laweeda@epa.gov
Salt River LandfillLandfillTitle V: RenewalEPA-R09-OAR-2025-0134ScottsdaleAZSalt River Pima-Maricopa
Indian Community of the
Salt River Reservation		La Weeda Jones
jones.laweeda@epa.gov
Aneth Unit Tank Battery 20Oil and GasNSR: New Minor Source,
Part 2 FIP Registration		EPA-R09-OAR-2025-3093San Juan CountyNMNavajo NationChrista Leska
leska.christa@epa.gov
Morongo Casino Cogeneration FacilityCasino/EngineNSR: Minor Modification;
Synthetic Minor Limit(s)		EPA-R09-OAR-2025-4149CabazonCAMorongo Band
of Mission Indians		Tina Su
su.tingzhi@epa.gov
Acorn Ridge CasinoCasinoNSR: New Minor SourceEPA-R09-OAR-2026-0760PlymouthCAIone Band of
Miwok Indians		Noelle Mushro
mushro.noelle@epa.gov
Pechanga Tribal Government Cogeneration PlantHeat and Power
Generation		NSR: New Minor SourceEPA-R09-OAR-2026-6700Riverside CountyCAPechanga Band
of Indians		La Weeda Jones
jones.laweeda@epa.gov
North Fork Mono CasinoCasinoNSR: New Minor SourceEPA-R09-OAR-2026-5347Madera CountyCANorth Fork
Rancheria of
Mono Indians		La Weeda Jones
jones.laweeda@epa.gov 
Four Corners Power PlantPower PlantPSD: Major ModificationEPA-R09-OAR-2026-6337FruitlandNMNavajo NationChrista Leska
leska.christa@epa.gov
Tahoe Forest ProductsSawmill FacilitiesNSR: General Permit Request for CoverageEPA-R09-OAR-2026-7030Carson CityNVWashoe Tribe of Nevada & CaliforniaTBD

Public Notice

Completed Region 9 Permit Actions

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Source NameSource TypeAction TypeDocket No.Final Action Date (YYYY/MM/DD)StatusCity or
County		StateTribeRelated Documents
Tortoise Rock Travel CenterGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-02592025/09/22ApprovedTwentynine PalmsCATwenty-Nine
Palms Band of
Mission Indians
of California		N/A
Thermal Travel CenterGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2025-08512025/09/22ApprovedCoachellaCATwenty-Nine
Palms Band of
Mission Indians
of California		N/A
Ehrenberg QuarryStone Quarrying,
Crushing, and
Screening Facility		General Permit Request
for Coverage		EPA-R09-OAR-2024-00132024/05/28WithdrawnLa Paz CountyAZColorado River
Indian Tribes		N/A
Mechoopda CasinoCasino/EngineNSR: New Minor Source,
Synthetic Minor Limit(s)		EPA-R09-OAR-2023-02362023/12/05WithdrawnButte CountyCAMechoopda Indian
Tribe of Chico
Rancheria		N/A
Lupton FacilityOil and Gas ProductionNSR: Synthetic Minor
Limit(s)		EPA-R09-OAR-2022-08982023/08/02WithdrawnLuptonAZNavajo NationN/A
CRIT Auto ShopSoil Vapor Extraction
and Air Sparging		NSR: New Minor SourceEPA-R09-OAR-2022-09342023/06/26IssuedParkerAZColorado River
Indian Tribes		N/A
NNOGC Jenny 36 #1Oil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2022-08242022/11/22ApprovedSan Juan
County		UTNavajo NationN/A
NNOGC Blue Hogan West I #1Oil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2022-08252022/11/22ApprovedSan Juan
County		UTNavajo NationN/A
NNOGC Big Boy 22 #1Oil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2022-08262022/11/22ApprovedSan Juan
County		UTNavajo NationN/A
Cache Creek Casino ResortCasino/EnginesNSR: Minor Modification,
Minor Source		EPA-R09-OAR-2021-06072022/11/14IssuedBrooksCAYocha Dehe
Wintun Nation		 Modeling Files: Cache Creek Casino Resort (zip)
Coachella Crossroads Travel CenterGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2022-05782022/10/05ApprovedCoachellaCATwenty-Nine Palms
Band of Mission
Indians of California		N/A
FNF Construction Inc. Window RockConcrete Batch PlantNSR: General Permit
Request for Coverage		EPA-R09-OAR-2022-06542022/10/03ApprovedApache CountyAZNavajo NationN/A
Roadrunner Express (formerly Soboba Economic Development Corporation)Gas StationNSR: Administrative NSR
General Permit Request
for Coverage		EPA-R09-OAR-2022-02882022/05/31ApprovedSan JacintoCASoboba Band of
Luiseno Indians		N/A
Spotlight 29 CasinoCasino/EnginesNSR: New Minor SourceEPA-R09-OAR-2021-05592022/02/08IssuedCoachellaCATwenty-Nine Palms
Band of Mission
Indians of California		 AERSCREEN: Spotlight 29 Casino (zip)
AltAir Paramount LLCConversion of Oil
Refinery to Renewable
Fuels Facility		NSR: Applicability
Determination		EPA-R09-OAR-2021-06292021/11/03PSD Not ApplicableParamountCAN/AN/A
Graton Resort and CasinoCasino/EnginesNSR: New Minor SourceEPA-R09-OAR-2021-02682021/10/19IssuedRohnert ParkCAFederated Indians of
Graton Rancheria		 AERSCREEN: Graton Resort and Casino (zip)
Morongo Travel CenterGas StationNSR: AdministrativeEPA-R09-OAR-2022-02672022/03/28IssuedCabazonCAMorongo Band of
Mission Indians		N/A
Morongo Travel CenterGas StationNSR: New Minor SourceEPA-R09-OAR-2021-00432021/09/21IssuedCabazonCAMorongo Band of
Mission Indians		N/A
Lehigh Southwest Cement Company - Redding Cement PlantPortland Cement
Manufacturing Facility		PSD: AdministrativeEPA-R09-OAR-2021-03982021/07/28IssuedReddingCAN/AN/A
Navajo Engineering and Construction AuthorityHot Mix Asphalt PlantsNSR: General Permit
Request for Coverage		EPA-R09-OAR-2021-00462021/04/13ApprovedApache CountyAZNavajo NationN/A
Red Hawk CasinoCasino/EnginesNSR: AdministrativeEPA-R09-OAR-2020-05842021/02/12IssuedPlacervilleCAShingle Springs
Band of Miwok
Indians		N/A
San Manuel CasinoCasino/EnginesNSR: AdministrativeEPA-R09-OAR-2020-05512021/01/12IssuedHighlandCASan Manuel Band of
Mission Indians		N/A
Tri-Cities LandfillLandfillTitle V: Permit
Termination		EPA-R09-OAR-2020-05262020/10/09IssuedScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
Desert View PowerBiomass Power PlantTitle V: RenewalEPA-R09-OAR-2020-02662020/09/30IssuedMeccaCACabazon Band of
Mission Indians		N/A
Salt River LandfillLandfillTitle V: RenewalEPA-R09-OAR-2020-03732020/09/21IssuedScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
FNF Construction, Inc - Window Rock AirportConcrete Batch PlantNSR: General Permit
Request for Coverage		EPA-R09-OAR-2020-03662020/09/17ApprovedWindow RockAZNavajo NationN/A
Chaparral Commerce CenterOffice Building/
Emergency Engine		NSR: AdministrativeEPA-R09-OAR-2020-03672020/09/08IssuedScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
San Manuel CasinoCasino/EnginesNSR: Minor Modification,
Synthetic Minor Limit(s)		EPA-R09-OAR-2020-02172020/09/08IssuedHighlandCASan Manuel Band of
Mission Indians		N/A
Soboba Economic Development CorporationGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2020-02492020/06/25ApprovedSan JacintoCASoboba Band of
Luiseno Indians		N/A
Collins Pine CompanyCogeneration Facility
with Sawmill		PSD: Non-Major
Modification		N/A2020/06/25WithdrawnChesterCAN/AN/A
Elk Petroleum – McElmo Creek UnitOil and Gas ProductionPSD/NSR: Minor
Modification,
Major Source		EPA-R09-OAR-2019-04092020/06/08IssuedSan Juan
County		UTNavajo NationN/A
White Mountain Apache Timber CompanySawmill FacilitiesNSR: New Minor
Source		EPA-R09-OAR-2019-04552020/06/04IssuedWhiteriverAZWhite Mountain
Apache Tribe of
the Fort Apache
Reservation		N/A
Navajo Generating StationCoal-Fired Power PlantAcid Rain - Permit
Termination		EPA-R09-OAR-2022-00982020/05/06TerminatedPageAZNavajo NationN/A
Morongo Casino Cogeneration FacilityCasino/EnginesTitle V: Permit
Termination		EPA-R09-OAR-2019-05332020/04/06TerminatedCabazonCAMorongo Band of
Mission Indians		N/A
Morongo Casino Cogeneration FacilityCasino/EnginesNSR: Synthetic
Minor Limit(s)		EPA-R09-OAR-2019-05332020/04/06IssuedCabazonCAMorongo Band of
Mission Indians		N/A
Palmdale Energy ProjectPower PlantPSD: Permit
Termination		EPA-R09-OAR-2020-01302020/03/02RescindedPalmdaleCAN/AN/A
San Manuel CasinoCasino/EnginesNSR: AdministrativeEPA-R09-OAR-2019-07192020/02/27IssuedHighlandCASan Manuel Band
of Mission Indians		N/A
Oscar Renda ContractingConcrete Batch PlantNSR: General Permit
Request for Coverage		EPA-R09-OAR-2019-05982019/12/30ApprovedSan Juan
County		NMNavajo NationN/A
Cyprus Tohono CorporationOpen Pit Mining
and Leach		NSR: Minor Modification,
Major Source		EPA-R09-OAR-2019-00532019/09/19WithdrawnCasa GrandeAZTohono O'odham
Nation of Arizona		N/A
Cache Creek Casino ResortCasino/EnginesNSR: AdministrativeEPA-R09-OAR-2019-04282019/09/10IssuedBrooksCAYocha Dehe
Wintun Nation		N/A
Agua Caliente Tribal CorporationGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2019-04142019/09/10ApprovedPalm SpringsCAAgua Caliente Band
of Cahuilla Indians		N/A
San Manuel CasinoCasino/EnginesNSR: Minor Modification,
Synthetic Minor Limit(s)		EPA-R09-OAR-2019-01502019/08/02IssuedHighlandCASan Manuel Band
of Mission Indians		 Modeling Files: San Manuel Casino (zip)
Santa Rosa Pit Stop LLCGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2019-01812019/06/28ApprovedMountain CenterCASanta Rosa Band of
Cahuilla Indians		N/A
Sycuan MarketGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2019-01512019/06/28ApprovedEl CajonCASycuan Band of the
Kumeyaay Nation		N/A
Red Hawk CasinoCasino/EnginesNSR: AdministrativeEPA-R09-OAR-2019-00892019/04/18IssuedPlacervilleCAShingle Springs
Band of Miwok
Indians		N/A
Cache Creek Casino ResortCasino/EnginesNSR: Minor Modification,
Synthetic Minor Limit(s)		EPA-R09-OAR-2018-06532019/04/12IssuedBrooksCAYocha Dehe
Wintun Nation		N/A
Navajo Engineering and Construction AuthorityHot Mix Asphalt PlantsNSR: General Permit
Request for Coverage		EPA-R09-OAR-2019-00012019/04/11ApprovedApache CountyAZNavajo NationN/A
CEMEX - Higley PlantConcrete Batch PlantNSR: General Permit
Request for Coverage		EPA-R09-OAR-2018-06992018/12/26ApprovedMesaAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
Mobil Oil Saipan TerminalRefineryTitle V: InitialEPA-R09-OAR-2018-06952018/12/26IssuedSaipanMPN/AN/A
NantEnergy Inc (formerly Fluidic Energy)Battery Substrate
Manufacturing		NSR: New Minor SourceEPA-R09-OAR-2018-06522018/11/14IssuedScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
South Point Energy CenterPower PlantTitle V: RenewalEPA-R09-OAR-2018-05412018/09/13IssuedMohave ValleyAZFort Mojave
Indian Tribe
of Arizona,
California,
and Nevada		N/A
Express FuelGas StationNSR: New Minor SourceEPA-R09-OAR-2018-03852018/08/28IssuedShingle SpringsCAShingle Springs
Band of Miwok
Indians		N/A
Ft. Mojave Smoke ShopSoil and Groundwater
Remediation		NSR: New Minor SourceEPA-R09-OAR-2018-03942018/07/26IssuedMohave ValleyAZFort Mojave
Indian Tribe
of Arizona,
California,
and Nevada		N/A
NantEnergy IncBattery Substrate
Manufacturing		NSR: New Minor SourceN/A2018/07/03WithdrawnScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
Bureau of ReclamationDredgingNSR: AdministrativeN/A2018/06/28WithdrawnLaguna ReservoirCAQuechan Tribe
of the Fort Yuma
Indian Reservation		N/A
Yavapai Apache Sand and RockHot Mix Asphalt PlantsNSR: General Permit
Request for Coverage		EPA-R09-OAR-2022-00932018/05/11ApprovedCamp VerdeAZYavapai-Apache
Nation of the
Camp Verde
Indian Reservation		N/A
Cache Creek Casino ResortCasino/EnginesNSR: Synthetic
Minor Limit(s)		N/A2018/05/11WithdrawnBrooksCAYocha Dehe
Wintun Nation		N/A
Palmdale Energy ProjectPower PlantPSD: New Major SourceEPA-R09-OAR-2017-04732018/04/25Issued/RescindedPalmdaleCAN/AAdministrative Record
and Additional Information
FNF Construction, Inc - Window Rock AirportConcrete Batch PlantNSR: General Permit
Request for Coverage		EPA-R09-OAR-2022-01182018/04/18ApprovedWindow RockAZNavajo NationN/A
Oscar Renda ContractingConcrete Batch PlantNSR: General Permit
Request for Coverage		EPA-R09-OAR-2022-00952018/04/18ApprovedSan Juan
County		NMNavajo NationN/A
APS Four Corners Steam Electric PlantPower PlantPSD/NSR: AdministrativeEPA-R09-OAR-2018-01372018/03/13IssuedFruitlandNMNavajo NationN/A
Chaparral Commerce CenterOffice Building/
Emergency Engine		NSR: New Minor SourceEPA-R09-OAR-2017-07042018/02/02IssuedScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
APS Four Corners Steam Electric PlantPower PlantPSD/NSR: AdministrativeEPA-R09-OAR-2017-06762017/01/28IssuedFruitlandNMNavajo NationN/A
Collins Pine CompanyCogeneration Facility
with Sawmill		PSD: Non-Major
Modification		EPA-R09-OAR-2016-01912017/10/04IssuedChesterCAN/AN/A
Mobil Oil Guam TerminalRefineryTitle V: InitialEPA-R09-OAR-2016-02162017/10/04IssuedPitiGUN/AN/A
San Manuel CasinoCasino/EnginesNSR: New Minor Source,
Synthetic Minor Limit(s)		EPA-R09-OAR-2017-02692017/09/25IssuedHighlandCASan Manuel Band
of Mission Indians		N/A
Red Hawk CasinoCasino/EnginesNSR: Synthetic Minor
Limit(s)		EPA-R09-OAR-2017-02722017/09/21IssuedPlacervilleCAShingle Springs Band
of Miwok Indians		N/A
Mecca Resource FacilityWaste ManagementNSR: Synthetic Minor
Limit(s)		N/A2017/08/30WithdrawnMeccaCACabazon Band of
Mission Indians		N/A
ASARCO LLC Mission Complex - San XavierMiningTitle V: RenewalEPA-R09-OAR-2017-02522017/08/10IssuedSahuaritaAZTohono O'odham
Nation of Arizona		N/A
Running Horse Pipeline Montezuma Creek StationCrude Oil Pipeline
Pumping Station and
Truck Loading Rack		NSR: New Minor SourceN/A2017/05/26WithdrawnMontezuma CreekUTNavajo NationN/A
Bureau of ReclamationDredgingNSR: New Minor SourceEPA-R09-OAR-2017-01632017/05/22IssuedLaguna ReservoirCAQuechan Tribe
of the Fort Yuma
Indian Reservation		N/A
FNF Construction, IncHot Mix Asphalt PlantsNSR: General Permit
Request for Coverage		EPA-R09-OAR-2022-01192017/04/19ApprovedGanadoAZNavajo NationN/A
Tri-Cities Landfill Energy FacilityPower PlantTitle V: Permit
Termination		N/A2017/04/10TerminatedScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
NantEnergy IncBattery Substrate
Manufacturing		NSR: New Minor SourceN/A2016/10/11WithdrawnScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
Resolute Natural Resources Co. – McElmo Creek UnitOil and Gas ProductionPSD/NSR: Minor
Modification,
Major Source		EPA-R09-OAR-2014-07852016/09/30IssuedAnethUTNavajo NationN/A
Resolute Natural Resources Co. – McElmo Creek UnitOil and Gas ProductionPSD/NSR: Minor
Modification,
Major Source		EPA-R09-OAR-2014-07852016/09/30IssuedAnethUTNavajo NationN/A
Navajo Generating StationCoal-Fired Power PlantPSD: Non-Major
Modification		EPA-R09-OAR-2016-00262016/04/20IssuedPageAZNavajo NationN/A
Johns ManvilleFiberglass Insulation
Manufacturing		PSD: AdministrativeEPA-R09-OAR-2016-04402015/11/12IssuedGlenn CountyCAN/AN/A
Fisher Sand & Gravel Pit - New Mexico, Inc.Stone Quarrying,
Crushing, and
Screening Facility		NSR: General Permit
Request for Coverage		EPA-R09-OAR-2022-01202015/11/05ApprovedNewcombNMNavajo NationN/A
Navajo Generating StationCoal-Fired Power PlantPSD/NSR: AdministrativeEPA-R09-OAR-2016-02492015/08/26IssuedPageAZNavajo NationN/A
Desert View PowerBiomass Power PlantPSD/NSR: AdministrativeEPA-R09-OAR-2022-01172015/05/22IssuedMeccaCACabazon Band of
Mission Indians		Administrative
Amendment
APS Four Corners Steam Electric PlantPower PlantPSD/NSR: Major
Modification		EPA-R09-OAR-2014-05452014/12/18IssuedFruitlandNMNavajo NationN/A
Avenal Energy ProjectPower PlantPSD: Permit
Termination		EPA-R09-OAR-2022-01222014/08/12Vacated/ WithdrawnKings CountyCAN/AN/A
Sierra Pacific Industries-Anderson DivisionPower PlantPSD: Major
Modification		EPA-R09-OAR-2012-06342014/04/25IssuedAndersonCAN/AN/A
Sierra Pacific Industries – Anderson DivisionCogeneration Unit
with Sawmill		PSD: Major
Modification		EPA-R09-OAR-2012-06342014/04/25IssuedReddingCAN/AN/A
White Mountain Apache Timber CompanySawmill FacilitiesNSR: Synthetic
Minor Limit(s)		N/A2014/04/11WithdrawnWhiteriverAZWhite Mountain
Apache Tribe of
the Fort Apache
Reservation		N/A
Pio Pico Energy CenterPower PlantPSD: New Major
Source		EPA-R09-OAR-2011-09782014/02/28IssuedOtay MesaCAN/AN/A
Palmdale Hybrid Power ProjectPower PlantPSD: New Major
Source		EPA-R09-OAR-2011-05602012/09/25Issued (Expired)PalmdaleCAN/AEPA-R09-OAR-2017-0569
Rio Bravo JasminCogeneration FacilityPSD: Non-Major
Modification		EPA-R09-OAR-2011-10352012/05/15IssuedBakersfieldCAN/AN/A
Rio Bravo PosoCogeneration FacilityPSD: Non-Major
Modification		EPA-R09-OAR-2011-10342012/05/15IssuedBakersfieldCAN/AN/A
Tule River Wastewater Treatment PlantEmergency EngineNSR: New Minor
Source		EPA-R09-OAR-2017-05962017/12/12IssuedPortervilleCATule River TribeN/A
Stockton CoGen ProjectCogeneration FacilityPSD: Non-Major
Modification		EPA-R09-OAR-2011-05792011/09/16IssuedStocktonCAN/AN/A
Colusa Generating StationPower PlantPSD: AdministrativeEPA-R09-OAR-2011-03112011/03/11AmendedShasta CountyCAN/AN/A
Knauf InsulationFiberglass Insulation
Manufacturing		PSD: AdministrativeEPA-R09-OAR-2010-10622010/12/13IssuedShasta LakeCAN/AN/A
Burney Mountain PowerPower PlantPSD: Non-Major
Modification		EPA-R09-OAR-2009-09662010/10/25IssuedShasta CountyCAN/AN/A
Sierra Pacific Industries Inc.Cogeneration Unit
with Sawmill		PSD: Major
Modification		EPA-R09-OAR-2010-02262010/08/30IssuedLoyaltonCAN/AN/A
Colusa Generating StationPower PlantPSD: Non-Major
Modification		EPA-R09-OAR-2009-06972010/03/19IssuedShasta CountyCAN/AN/A
High Desert Power ProjectPower PlantPSD: Non-Major
Modification		EPA-R09-OAR-2010-01292010/03/11IssuedVictorvilleCAN/AN/A
Victorville 2 Hybrid Power ProjectPower PlantPSD: New Major
Source		EPA-R09-OAR-2008-04062010/03/11IssuedVictorvilleCAN/AEPA-R09-OAR-2008-0765
Colusa Generating StationPower PlantPSD: New Major
Source		EPA-R09-OAR-2008-04362008/09/29IssuedShasta CountyCAN/AN/A
Morro Bay Power PlantPower PlantPSD: New Major
Source		EPA-R09-OAR-2007-09642008/09/25IssuedMorro BayCAN/AN/A
Desert RockPower PlantPSD: New Major
Source		EPA-R09-OAR-2007-11102008/07/31IssuedShiprockNMNavajo NationN/A
Mount Lassen PowerBiomass Power PlantPSD: AdministrativeEPA-R09-OAR-2007-09512007/09/10IssuedWestwoodCAN/AN/A
Knauf InsulationFiberglass Insulation
Manufacturing		PSD: AdministrativeEPA-R09-OAR-2007-08742007/05/07IssuedShasta LakeCAN/AN/A
Blythe Energy Project IIPower PlantPSD: New Major
Source		EPA-R09-OAR-2007-07232007/04/25IssuedBlytheCAN/AN/A
Pimalco Inc.Secondary Aluminum
Production and
Extrusion		Title V: RenewalEPA-R09-OAR-2007-11142006/10/20IssuedChandlerAZGila River Indian
Community of the
Gila River Indian
Reservation		N/A
Guardian Industries Corp.Glass Manufacturing
Facility		PSD: Non-Major
Modification		EPA-R09-OAR-2007-08692006/05/26IssuedKingsburgCAN/AN/A
Knauf InsulationFiberglass Insulation
Manufacturing		PSD: AdministrativeEPA-R09-OAR-2007-08732006/04/11IssuedShasta LakeCAN/AN/A
Elk Hills PowerPower PlantPSD: Non-Major
Modification		EPA-R09-OAR-2007-08682006/01/12IssuedKern CountyCAN/AN/A
General Air Quality Permit for New or Modified Minor Source Gasoline Dispensing Facilities in Indian Country Within CaliforniaGasoline Dispensing
Facilities		NSR: General Permit
Development		EPA-R09-OAR-2016-05802019/05/01IssuedStatewideCAIndian Country
Within California		More Information
Fann ContractingHot Mix Asphalt PlantsNSR: General Permit
Request for Coverage		EPA-R09-OAR-2022-02202022/04/27ApprovedKayentaAZNavajo NationN/A
Red Hawk CasinoCasino/EnginesNSR: Minor
Modification,
Minor Source		EPA-R09-OAR-2022-08972023/03/29IssuedPlacervilleCAShingle Springs Band
of Miwok Indians		 AERSCREEN: Red Hawk Casino (zip)
Spotlight 29 CasinoCasino/EnginesNSR: Minor
Modification,
Minor Source		EPA-R09-OAR-2022-05402023/03/29IssuedCoachellaCATwenty-Nine Palms
Band of Mission
Indians of California		 AERSCREEN: Spotlight 29 Casino (zip)
Four Corners Power PlantEmergency EngineNSR: Administrative
Amendment		EPA-R09-OAR-2022-08402023/03/31IssuedFruitlandNMNavajo NationN/A
NNOGC Desert Creek Wash 34 #1Oil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2023-00912023/03/09ApprovedSan Juan
County		UTNavajo NationN/A
Cave Bear Tire Recycling PlantRubber Tire Pyrolysis
Rubber Recycling		NSR: New Minor SourceEPA-R09-OAR-2021-07572023/03/31WithdrawnThermalCATorres Martinez
Desert Cahuilla
Indians		N/A
Yaamava' Resort & Casino at San Manuel (formerly San Manuel Casino)Casino/Cogeneration
Unit, Engine		NSR: AdministrativeEPA-R09-OAR-2023-02102023/09/11IssuedHighlandCASan Manuel Band
of Mission Indians		N/A
Elk Petroleum – McElmo Creek Unit, Area 4 Tank BatteryOil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2023-02852023/06/13ApprovedSan Juan
County		UTNavajo NationN/A
Ratherford Water Injection PlantOil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2023-04152023/09/05ApprovedSan Juan
County		UTNavajo NationN/A
Ratherford Unit Tank Battery 2Oil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2023-04142023/09/05ApprovedSan Juan
County		UTNavajo NationN/A
Ratherford Unit Tank Battery 1Oil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2023-04132023/09/05ApprovedSan Juan
County		UTNavajo NationN/A
Elk Petroleum, LLC; Aneth Unit Tank Battery 20Oil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2023-04322023/09/12ApprovedSan Juan
County		UTNavajo NationN/A
Elk Petroleum, LLC; Aneth Unit Tank Battery 26Oil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2023-04332023/09/12ApprovedSan Juan
County		UTNavajo NationN/A
Twenty-Nine Palms Band of Mission Indians Power Generation FacilityPower PlantNSR: New Minor Source,
Synthetic Minor Limit(s)		EPA-R09-OAR-2021-08432023/09/26IssuedCoachellaCATwenty-Nine Palms
Band of Mission
Indians of California		 Modeling Files: Twenty-Nine Palms PGF (zip)
Oak Creek Travel CenterGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2023-02492024/03/06ApprovedIndependenceCAFort Independence
Indian Reservation		N/A
McElmo Creek Unit Area 2 Tank BatteryOil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2024-00202024/06/18ApprovedSan Juan
County		UTNavajo NationN/A
McElmo Creek Unit Area 6 Tank BatteryOil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2024-00222024/06/18ApprovedSan Juan
County		UTNavajo NationN/A
ASARCO Mission Mine - San XavierMiningTitle V: RenewalEPA-R09-OAR-2022-02982024/07/02IssuedSahuaritaAZTohono O'odham
Nation of Arizona		N/A
Chaparral Commerce CenterEmergency EngineNSR: Administrative
Amendment		EPA-R09-OAR-2022-09002024/09/06IssuedScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
Chaparral Commerce Center - SCI LLCEmergency EngineNSR: New Minor SourceEPA-R09-OAR-2022-09002024/09/06IssuedScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
Viejas Pit StopGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-00842024/09/18ApprovedAlpineCAViejas Band of
Kumeyaay Indians		N/A
McElmo Creek Unit Area 1 Tank BatteryOil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2024-03532024/10/03ApprovedSan Juan
County		UTNavajo NationN/A
South Point Energy CenterPower PlantPSD/NSR: Non-Major
Modification		EPA-R09-OAR-2021-05262025/01/02ApprovedMohave
Valley		AZFort Mojave
Indian Tribe
of Arizona		N/A
Ehrenberg QuarryStone Quarrying,
Crushing, and
Screening Facility		NSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-04762025/02/27ApprovedLa Paz CountyAZColorado River
Indian Tribes		N/A
Twenty-Nine Palms Band of Mission Indians Power Generation FacilityPower PlantNSR: AdministrativeEPA-R09-OAR-2025-01222025/03/13IssuedCoachellaCATwenty-Nine Palms
Band of Mission
Indians of California		N/A
Pima Rd Redevelopment Screening HallStone Quarrying,
Crushing, and
Screening Facility		NSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-05932024/12/19WithdrawnScottsdaleAZSalt River
Pima-Maricopa
Indian Community
of the Salt River
Reservation		N/A
Yaamava' Resort & Casino at San ManuelCasino/Cogeneration
Unit, Engine		NSR: AdministrativeEPA-R09-OAR-2024-00952025/03/05IssuedSan Bernadino
County		CASan Manuel Band
of Mission Indians		N/A
McElmo Creek Water Injection PlantOil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2025-01562025/04/01WithdrawnSan Juan CountyUTNavajo NationN/A
Agua Caliente Fuel Palm SpringsGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-05232025/04/08ApprovedPalm SpringsCAAgua Caliente Band
of Cahuilla Indians		N/A
Tejon Gas StationGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-06282025/03/26ApprovedBakersfieldCATejon Indian Tribe 
Cielo Travel CenterGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-02582025/04/08ApprovedYucca ValleyCATwenty-Nine Palms
Band of Mission
Indians of California		N/A
San Juan Lateral WTP Rock CrusherStone Quarrying,
Crushing, and
Screening Facility		NSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-05552025/05/21ApprovedSan Juan CountyNMNavajo NationN/A
Agua Caliente Fuel Cathedral CityGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2025-01932025/06/04ApprovedCathedral CityCAAgua Caliente Band of
Cahuilla Indians		N/A
Joshua Tree 96 Travel CenterGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-02572025/06/30ApprovedJoshua TreeCATwenty-Nine Palms
Band of Mission
Indians of California		N/A
Agua Caliente Fuel Rancho Mirage (formerly Agua Caliente Tribal Corporation Gasoline Dispensing Facility)Gas StationNSR: Minor Modification,
Minor Source		EPA-R09-OAR-2024-04552025/07/31IssuedRancho MirageCAAgua Caliente Band of
Cahuilla Indians		N/A
Agua Caliente Cathedral CityGas StationNSR: AdministrativeEPA-R09-OAR-2025-09822025/08/05ApprovedCathedral CityCAAgua Caliente Band of
Cahuilla Indians		N/A
Pala Super MartGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2025-02312025/08/12ApprovedPalaCAPala Band of
Mission Indians		N/A
Table Mountain Rancheria Gas StationGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-04162025/08/18ApprovedFriantCATable Mountain RancheriaN/A
Lupton FacilityOil and GasNSR: Minor Modification;
Synthetic Minor Limit(s)		EPA-R09-OAR-2023-04112025/11/14IssuedLuptonAZNavajo NationN/A
Core Ready Mix Higley PlantConcrete Batch PlantNSR: General Permit
Request for Coverage		EPA-R09-OAR-2025-03012025/11/21ApprovedMesaAZSalt River Pima-Maricopa
Indian Community of the
Salt River Reservation		N/A
San Juan Lateral WTP Rock CrusherStone Quarrying,
Crushing, and
Screening Facility		NSR: Permit TerminationN/A2025/12/17TerminatedSan Juan CountyNMNavajo Nation EPA Termination Letter (pdf) (127.07 KB)
Ehrenberg QuarryStone Quarrying,
Crushing, and
Screening Facility		NSR: Permit TerminationN/A2025/09/25TerminatedLa Paz CountyAZColorado River Indian Tribes EPA Termination Letter (pdf) (146.34 KB, September 29, 2025)
Ft. Mojave Smoke ShopSoil and Ground Water
Remediation		NSR: Permit TerminationN/A2019/06/24TerminatedMohave ValleyAZFort Mojave
Indian Tribe
of Arizona, California,
and Nevada		 EPA Termination Letter (pdf) (533.76 KB, June 24, 2019)
Bureau of ReclamationDredgingNSR: Permit TerminationN/A2019/11/22TerminatedLaguna ReservoirCAQuechan Tribe
of the Fort Yuma
Indian Reservation		 Request for Termination (pdf) (216.27 KB, July 10, 2019)
Big Valley Fuel & MarketGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2024-05472025/11/05ApprovedLakeportCABig Valley Band of
Pomo Indians		N/A
Twenty-Nine Palms Band of Mission Indians Power Generation FacilityPower PlantNSR: AdministrativeEPA-R09-OAR-2026-08592026/02/25IssuedCoachellaCATwenty-Nine
Palms Band of
Mission Indians
of California		N/A
Hogback Helium Plant and Hogback Deep 12-41 WellpadOil and GasNSR: New Minor Source
Part 1 FIP Registration		EPA-R09-OAR-2025-04562026/03/17ApprovedSan Juan CountyNMNavajo NationN/A
Hogback Deep 12-40 and Hogback Deep 12-42 WellpadOil and GasNSR: New Minor Source
Part 1 FIP Registration		EPA-R09-OAR-2025-04572026/03/17ApprovedSan Juan CountyNMNavajo NationN/A
Jamul Casino ResortCasinoNSR: New Minor SourceEPA-R09-OAR-2025-04542026/03/20IssuedJamulCAJamul Indian VillageN/A
Tejon Gas StationGas StationNSR: Administrative AmendmentEPA-R09-OAR-2026-34992026/04/28ApprovedKern CountyCATejon Indian TribeN/A
Pauma Travel CenterGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2025-00822026/04/09ApprovedPauma ValleyCAPauma Band of
Luiseno Mission
Indians of the
Pauma & Yuima
Reservation		N/A
Costco Fuel Facility (Location No. 1834)Gas StationNSR: Permit by Rule
Notification of Coverage		EPA-R09-OAR-2026-63702026/07/10CoveredScottsdaleAZSalt River Pima-Maricopa
Indian Community
Cahuilla Springs Trading PostGas StationNSR: General Permit
Request for Coverage		EPA-R09-OAR-2025-29942026/07/08ApprovedCoachellaCACabazon Band of
Cahuilla Indians		N/A
McElmo Creek Unit Area 4 Tank BatteryOil and GasNSR: New Minor Source,
Part 1 FIP Registration		EPA-R09-OAR-2025-04552025/08/12ApprovedSan Juan CountyUTNavajo NationN/A
NTEC Energy Generation PlantPower PlantNSR: New Minor Source,
Synthetic Minor Limit(s)		EPA-R09-OAR-2024-00282026/08/11IssuedSan Juan CountyNMNavajo Nation Modeling Files (zip)
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Last updated on August 13, 2026