EPA Air · by county
Air-emissions sources in North Slope County, Alaska
- 76Facilities
Every stationary source in North Slope County, Alaska that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in North Slope County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in North Slope County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 — inspections 124
- 2025 — inspections 225
- 2024 — inspections 211
- 2023 — inspections 175
- 2022 — inspections 189
- 2021 — inspections 177
- 2020 — inspections 180
- 2019 — inspections 201
- 2018 — inspections 171
- 2017 — inspections 183
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| 8 STAR ALASKA LLC / GAS TREATMENT PLANT (GTP) | Major source | No |
| ALASKA FRONTIER CONSTRUCTORS INC. / 24 MAN SKID CAMP | Synthetic minor source | No |
| ALASKA INDUSTRIAL DEVELOPMENT AND EXPO / NORTH SLOPE LNG | Synthetic minor source | No |
| ALYESCHEM, LLC / ALYESCHEM METHANOL PLANT | Synthetic minor source | No |
| ALYESKA PIPELINE SERVICE COMPANY / PS #01, TAPS PUMP STATION | Major source | No |
| ALYESKA PIPELINE SERVICE COMPANY / PS #03, TAPS PUMP STATION | Major source | No |
| ALYESKA PIPELINE SERVICE COMPANY / PS #04, TAPS PUMP STATION | Major source | No |
| BAROID DRILLING FLUIDS (HALLIBURTON) / PRUDHOE BAY MUD PLANT | Synthetic minor source | No |
| BARROW UTILITIES & ELECTRIC COOPERATIV / BARROW POWER PLANT | Major source | No |
| BP EXPLORATION | Minor source | No |
| BP EXPLORATION (ALASKA) INC. / HOT WATER PLANT (HWP) | Minor source | No |
| CONOCOPHILLIPS ALASKA, INC. / ALPINE CENTRAL PROCESSING FACILITY | Major source | No |
| CONOCOPHILLIPS ALASKA, INC. / ALPINE DRILL RIG (DOYON 141) | Major source | No |
| CONOCOPHILLIPS ALASKA, INC. / ALPINE SATELLITE DRILL PAD CD5 | Synthetic minor source | No |
| CONOCOPHILLIPS ALASKA, INC. / CPF 1, KUPARUK CENTRAL PRODUCTION FACIL | Major source | No |
| CONOCOPHILLIPS ALASKA, INC. / CPF 2, KUPARUK CENTRAL PRODUCTION FACIL | Major source | No |
| CONOCOPHILLIPS ALASKA, INC. / CPF 3, KUPARUK CENTRAL PRODUCTION FACIL | Major source | No |
| CONOCOPHILLIPS ALASKA, INC. / GREATER MOOSES TOOTH 1/MOOSES TOOTH 6 ( | Synthetic minor source | No |
| CONOCOPHILLIPS ALASKA, INC. / GREATER MOOSES TOOTH 2/MOOSES TOOTH 7 ( | Synthetic minor source | No |
| CONOCOPHILLIPS ALASKA, INC. / GREATER MOOSES TOOTH UNIT | Synthetic minor source | No |
| CONOCOPHILLIPS ALASKA, INC. / KUPARUK RIVER UNIT TRANSPORTABLE DRILLI | Major source | No |
| CONOCOPHILLIPS ALASKA, INC. / KUPARUK SEAWATER TREATMENT PLANT (STP) | Major source | No |
| CONOCOPHILLIPS ALASKA, INC. / WILLOW CENTRAL FACILITY (WCF) | Major source | No |
| CONOCOPHILLIPS ALASKA, INC. / WILLOW OPERATIONS CENTER (WOC) | Major source | No |
| HARVEST ALASKA LNG, LLC / LIQUEFIED NATURAL GAS (LNG) FACILITY PR | Major source | No |
| HILCORP ALASKA, LLC / CENTRAL COMPRESSOR PLANT (CCP) | Major source | No |
| HILCORP ALASKA, LLC / CENTRAL GAS FACILITY (CGF) | Major source | Yes |
| HILCORP ALASKA, LLC / CRUDE OIL TOPPING UNIT (COTU) | Major source | No |
| HILCORP ALASKA, LLC / ENDICOTT PRODUCTION FACILITY (END) | Major source | No |
| HILCORP ALASKA, LLC / FLOW STATION #1 (FS 1) | Major source | Yes |
| HILCORP ALASKA, LLC / FLOW STATION #2 (FS 2) | Major source | No |
| HILCORP ALASKA, LLC / FLOW STATION #3 (FS 3) | Major source | Yes |
| HILCORP ALASKA, LLC / GATHERING CENTER #1 (GC 1) | Major source | No |
| HILCORP ALASKA, LLC / GATHERING CENTER #2 (GC 2) | Major source | No |
| HILCORP ALASKA, LLC / GATHERING CENTER #3 (GC 3) | Major source | No |
| HILCORP ALASKA, LLC / GRIND AND INJECT FACILITY (G & I) | Minor source | No |
| HILCORP ALASKA, LLC / LISBURNE PRODUCTION CENTER (LPC) | Major source | No |
| HILCORP ALASKA, LLC / MILNE POINT L-PAD | Major source | No |
| HILCORP ALASKA, LLC / MILNE POINT PRODUCTION FACILITY (MPU) | Major source | No |
| HILCORP ALASKA, LLC / MILNE POINT UNIT C-PAD | Major source | No |
| HILCORP ALASKA, LLC / NIKAITCHUQ DEVELOPMENT | Major source | No |
| HILCORP ALASKA, LLC / NORTHSTAR PRODUCTION FACILITY (NOR) | Major source | No |
| HILCORP ALASKA, LLC / OMEGA PAD | Minor source | No |
| HILCORP ALASKA, LLC / OOOGURUK DEVELOPMENT PROJECT | Major source | No |
| HILCORP ALASKA, LLC / PBU CENTRAL POWER STATION (CPS) | Major source | No |
| HILCORP ALASKA, LLC / POINT THOMSON PRODUCTION FACILITY | Major source | Yes |
| HILCORP ALASKA, LLC / PRUDHOE BAY OPERATIONS CENTER / MAIN CO | Major source | No |
| HILCORP ALASKA, LLC / PRUDHOE SEAWATER TREATMENT PLANT | Major source | No |
| HILCORP ALASKA, LLC / SEAWATER INJECTION PLANT EAST (SIPE) | Major source | No |
| HILCORP ALASKA, LLC / TRANSPORTABLE DRILLING RIGS (DRILL RIGS | Major source | No |
| HILCORP ALASKA, LLC / Z-PAD | Major source | No |
| ICE SERVICES, INC. / AURORA POWER GEN NG-1 AND NG-2 | Synthetic minor source | No |
| LJDHJ, LLC.( LACY HARBOR PRESIDENT) / YJOS BASE SHOP, WELLEX, AND BASE CAMP | Minor source | No |
| MUSTANG HOLDING LLC / MUSTANG PAD | Synthetic minor source | No |
| NANUQ INC. / ARCTIC WOLF CAMP | Synthetic minor source | No |
| NORTH SLOPE BOROUGH / ANAKTUVUK PASS POWER PLANT | Synthetic minor source | Yes |
| NORTH SLOPE BOROUGH / ATQASUK POWER PLANT | Synthetic minor source | No |
| NORTH SLOPE BOROUGH / BARROW TOS FACILITY | Synthetic minor source | No |
| NORTH SLOPE BOROUGH / KAKTOVIK POWER PLANT | Major source | No |
| NORTH SLOPE BOROUGH / NUIQSUT POWER PLANT | Synthetic minor source | Yes |
| NORTH SLOPE BOROUGH / POINT HOPE POWER PLANT | Major source | No |
| NORTH SLOPE BOROUGH / POINT LAY POWER PLANT | Synthetic minor source | No |
| NORTH SLOPE BOROUGH / SERVICE AREA TEN HOTEL | Major source | No |
| NORTH SLOPE BOROUGH / WAINWRIGHT POWER PLANT | Major source | No |
| NORTHWEST AUTO PARTS | Minor source | No |
| OIL SEARCH ALASKA, LLC, A SUBSIDIARY O / NANUSHUK DRILLSITE B | Major source | No |
| OIL SEARCH ALASKA, LLC, A SUBSIDIARY O / NANUSHUK OPERATIONS PAD | Major source | No |
| OIL SEARCH ALASKA, LLC, A SUBSIDIARY O / NANUSHUK PROCESSING FACILITY (NPF) | Major source | No |
| OIL SEARCH ALASKA, LLC, A SUBSIDIARY O / SEAWATER TREATMENT PLANT | Major source | No |
| SAVANT ALASKA LLC / BADAMI DEVELOPMENT FACILITY | Major source | Yes |
| TDX NORTH SLOPE GENERATING, LLC / TNSG SOUTH PLANT | Synthetic minor source | No |
| TDX POWER, LLC / TNSG NORTH POWER PLANT | Major source | Yes |
| US AIR FORCE, PACAF REGIONAL SUPPORT C / BARTER ISLAND LRRS | Synthetic minor source | No |
| US AIR FORCE, PACAF REGIONAL SUPPORT C / CAPE LISBURNE LRRS | Synthetic minor source | No |
| US AIR FORCE, PACAF REGIONAL SUPPORT C / OLIKTOK LRRS | Synthetic minor source | No |
| US AIR FORCE, PACAF REGIONAL SUPPORT C / POINT BARROW LRRS | Synthetic minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.