EPA Air · inspections by county and year
Air-emissions inspections in North Slope County, Alaska, 2025
- 225Inspections
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Each row below is one inspection recorded against a source in North Slope County, Alaska during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the North Slope County facility page.
North Slope County, Alaska, 2025
Air-emissions inspections in North Slope County, other years
Air-emissions inspections recorded in North Slope County, Alaska, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-08-05 | TDX POWER, LLC / TNSG NORTH POWER PLANT — high-priority violation on file | PCE Off-Site | State |
| 2025-08-05 | HILCORP ALASKA, LLC / GATHERING CENTER #1 (GC 1) | PCE Off-Site | State |
| 2025-08-05 | HILCORP ALASKA, LLC / FLOW STATION #3 (FS 3) — high-priority violation on file | PCE Off-Site | State |
| 2025-08-05 | HILCORP ALASKA, LLC / FLOW STATION #3 (FS 3) — high-priority violation on file | PCE Off-Site | State |
| 2025-08-05 | HILCORP ALASKA, LLC / OOOGURUK DEVELOPMENT PROJECT | PCE Off-Site | State |
| 2025-08-01 | HILCORP ALASKA, LLC / CRUDE OIL TOPPING UNIT (COTU) | PCE Off-Site | State |
| 2025-08-01 | HILCORP ALASKA, LLC / CRUDE OIL TOPPING UNIT (COTU) | PCE Off-Site | State |
| 2025-08-01 | HILCORP ALASKA, LLC / FLOW STATION #3 (FS 3) — high-priority violation on file | PCE Off-Site | State |
| 2025-07-29 | CONOCOPHILLIPS ALASKA, INC. / ALPINE CENTRAL PROCESSING FACILITY | PCE Off-Site | State |
| 2025-07-23 | HILCORP ALASKA, LLC / ENDICOTT PRODUCTION FACILITY (END) | PCE Off-Site | State |
| 2025-07-23 | HILCORP ALASKA, LLC / ENDICOTT PRODUCTION FACILITY (END) | PCE Off-Site | State |
| 2025-07-22 | HILCORP ALASKA, LLC / PBU CENTRAL POWER STATION (CPS) | PCE Off-Site | State |
| 2025-07-18 | CONOCOPHILLIPS ALASKA, INC. / CPF 2, KUPARUK CENTRAL PRODUCTION FACIL | PCE Off-Site | State |
| 2025-07-18 | CONOCOPHILLIPS ALASKA, INC. / CPF 1, KUPARUK CENTRAL PRODUCTION FACIL | PCE Off-Site | State |
| 2025-07-15 | CONOCOPHILLIPS ALASKA, INC. / CPF 3, KUPARUK CENTRAL PRODUCTION FACIL | PCE Off-Site | State |
| 2025-07-15 | HILCORP ALASKA, LLC / NORTHSTAR PRODUCTION FACILITY (NOR) | PCE Off-Site | State |
| 2025-07-14 | HILCORP ALASKA, LLC / CENTRAL GAS FACILITY (CGF) — high-priority violation on file | PCE Off-Site | State |
| 2025-07-14 | HILCORP ALASKA, LLC / CENTRAL COMPRESSOR PLANT (CCP) | PCE Off-Site | State |
| 2025-07-14 | HILCORP ALASKA, LLC / CENTRAL COMPRESSOR PLANT (CCP) | PCE Off-Site | State |
| 2025-07-14 | HILCORP ALASKA, LLC / CENTRAL COMPRESSOR PLANT (CCP) | PCE Off-Site | State |
| 2025-07-14 | CONOCOPHILLIPS ALASKA, INC. / KUPARUK SEAWATER TREATMENT PLANT (STP) | PCE Off-Site | State |
| 2025-07-11 | HILCORP ALASKA, LLC / FLOW STATION #2 (FS 2) | PCE Off-Site | State |
| 2025-07-11 | HILCORP ALASKA, LLC / FLOW STATION #3 (FS 3) — high-priority violation on file | PCE Off-Site | State |
| 2025-07-08 | HILCORP ALASKA, LLC / MILNE POINT PRODUCTION FACILITY (MPU) | PCE Off-Site | State |
| 2025-07-08 | HILCORP ALASKA, LLC / MILNE POINT PRODUCTION FACILITY (MPU) | PCE Off-Site | State |
| 2025-07-03 | HILCORP ALASKA, LLC / PRUDHOE SEAWATER TREATMENT PLANT | PCE Off-Site | State |
| 2025-07-01 | HILCORP ALASKA, LLC / LISBURNE PRODUCTION CENTER (LPC) | PCE Off-Site | State |
| 2025-06-30 | OIL SEARCH ALASKA, LLC, A SUBSIDIARY O / NANUSHUK PROCESSING FACILITY (NPF) | FCE Off-Site | State |
| 2025-06-26 | NORTH SLOPE BOROUGH / KAKTOVIK POWER PLANT | FCE On-Site | State |
| 2025-06-23 | ALYESKA PIPELINE SERVICE COMPANY / PS #04, TAPS PUMP STATION | FCE On-Site | State |
| 2025-06-18 | ALYESKA PIPELINE SERVICE COMPANY / PS #01, TAPS PUMP STATION | FCE On-Site | State |
| 2025-06-17 | NORTH SLOPE BOROUGH / WAINWRIGHT POWER PLANT | FCE On-Site | State |
| 2025-06-13 | HILCORP ALASKA, LLC / FLOW STATION #1 (FS 1) — high-priority violation on file | PCE Off-Site | State |
| 2025-06-13 | ALYESKA PIPELINE SERVICE COMPANY / PS #03, TAPS PUMP STATION | FCE On-Site | State |
| 2025-06-13 | SAVANT ALASKA LLC / BADAMI DEVELOPMENT FACILITY — high-priority violation on file | FCE On-Site | State |
| 2025-06-13 | HILCORP ALASKA, LLC / PRUDHOE BAY OPERATIONS CENTER / MAIN CO | PCE Off-Site | State |
| 2025-06-04 | NORTH SLOPE BOROUGH / SERVICE AREA TEN HOTEL | PCE Off-Site | State |
| 2025-05-30 | HILCORP ALASKA, LLC / CENTRAL GAS FACILITY (CGF) — high-priority violation on file | PCE Off-Site | State |
| 2025-05-15 | ALYESKA PIPELINE SERVICE COMPANY / PS #03, TAPS PUMP STATION | PCE Off-Site | State |
| 2025-05-15 | ALYESKA PIPELINE SERVICE COMPANY / PS #04, TAPS PUMP STATION | PCE Off-Site | State |
| 2025-05-13 | CONOCOPHILLIPS ALASKA, INC. / CPF 2, KUPARUK CENTRAL PRODUCTION FACIL | PCE Off-Site | State |
| 2025-05-13 | HILCORP ALASKA, LLC / TRANSPORTABLE DRILLING RIGS (DRILL RIGS | PCE Off-Site | State |
| 2025-05-12 | CONOCOPHILLIPS ALASKA, INC. / CPF 1, KUPARUK CENTRAL PRODUCTION FACIL | PCE Off-Site | State |
| 2025-05-12 | CONOCOPHILLIPS ALASKA, INC. / ALPINE CENTRAL PROCESSING FACILITY | PCE Off-Site | State |
| 2025-05-09 | HILCORP ALASKA, LLC / LISBURNE PRODUCTION CENTER (LPC) | PCE Off-Site | State |
| 2025-05-08 | HILCORP ALASKA, LLC / GATHERING CENTER #2 (GC 2) | PCE Off-Site | State |
| 2025-05-08 | CONOCOPHILLIPS ALASKA, INC. / ALPINE CENTRAL PROCESSING FACILITY | PCE Off-Site | State |
| 2025-05-08 | CONOCOPHILLIPS ALASKA, INC. / GREATER MOOSES TOOTH UNIT | PCE Off-Site | State |
| 2025-05-07 | HILCORP ALASKA, LLC / TRANSPORTABLE DRILLING RIGS (DRILL RIGS | PCE Off-Site | State |
| 2025-05-06 | CONOCOPHILLIPS ALASKA, INC. / KUPARUK RIVER UNIT TRANSPORTABLE DRILLI | PCE Off-Site | State |
| 2025-05-02 | HILCORP ALASKA, LLC / GRIND AND INJECT FACILITY (G & I) | PCE Off-Site | State |
| 2025-05-01 | NORTH SLOPE BOROUGH / NUIQSUT POWER PLANT — high-priority violation on file | PCE Off-Site | State |
| 2025-05-01 | CONOCOPHILLIPS ALASKA, INC. / GREATER MOOSES TOOTH 1/MOOSES TOOTH 6 ( | PCE Off-Site | State |
| 2025-05-01 | CONOCOPHILLIPS ALASKA, INC. / GREATER MOOSES TOOTH 2/MOOSES TOOTH 7 ( | PCE Off-Site | State |
| 2025-05-01 | CONOCOPHILLIPS ALASKA, INC. / ALPINE SATELLITE DRILL PAD CD5 | PCE Off-Site | State |
| 2025-04-23 | HILCORP ALASKA, LLC / FLOW STATION #2 (FS 2) | PCE Off-Site | State |
| 2025-04-23 | BARROW UTILITIES & ELECTRIC COOPERATIV / BARROW POWER PLANT | PCE Off-Site | State |
| 2025-04-14 | HILCORP ALASKA, LLC / MILNE POINT L-PAD | PCE Off-Site | State |
| 2025-04-10 | HILCORP ALASKA, LLC / PRUDHOE SEAWATER TREATMENT PLANT | PCE Off-Site | State |
| 2025-04-10 | CONOCOPHILLIPS ALASKA, INC. / WILLOW OPERATIONS CENTER (WOC) | PCE Off-Site | State |
| 2025-04-10 | HILCORP ALASKA, LLC / FLOW STATION #3 (FS 3) — high-priority violation on file | PCE Off-Site | State |
| 2025-04-09 | MUSTANG HOLDING LLC / MUSTANG PAD | PCE Off-Site | State |
| 2025-04-04 | NORTH SLOPE BOROUGH / BARROW TOS FACILITY | PCE Off-Site | State |
| 2025-04-01 | HILCORP ALASKA, LLC / GATHERING CENTER #1 (GC 1) | PCE Off-Site | State |
| 2025-03-27 | HILCORP ALASKA, LLC / PBU CENTRAL POWER STATION (CPS) | PCE Off-Site | State |
| 2025-03-27 | HILCORP ALASKA, LLC / GATHERING CENTER #3 (GC 3) | PCE Off-Site | State |
| 2025-03-27 | NORTH SLOPE BOROUGH / POINT HOPE POWER PLANT | FCE On-Site | State |
| 2025-03-26 | HILCORP ALASKA, LLC / SEAWATER INJECTION PLANT EAST (SIPE) | PCE Off-Site | State |
| 2025-03-26 | HILCORP ALASKA, LLC / MILNE POINT L-PAD | PCE Off-Site | State |
| 2025-03-25 | US AIR FORCE, PACAF REGIONAL SUPPORT C / OLIKTOK LRRS | PCE Off-Site | State |
| 2025-03-24 | CONOCOPHILLIPS ALASKA, INC. / CPF 3, KUPARUK CENTRAL PRODUCTION FACIL | FCE On-Site | State |
| 2025-03-21 | CONOCOPHILLIPS ALASKA, INC. / KUPARUK SEAWATER TREATMENT PLANT (STP) | FCE On-Site | State |
| 2025-03-19 | HILCORP ALASKA, LLC / LISBURNE PRODUCTION CENTER (LPC) | PCE Off-Site | State |
| 2025-03-19 | HILCORP ALASKA, LLC / LISBURNE PRODUCTION CENTER (LPC) | PCE Off-Site | State |
| 2025-03-18 | NORTH SLOPE BOROUGH / KAKTOVIK POWER PLANT | PCE Off-Site | State |
| 2025-03-17 | HILCORP ALASKA, LLC / MILNE POINT PRODUCTION FACILITY (MPU) | FCE On-Site | State |
| 2025-03-17 | SAVANT ALASKA LLC / BADAMI DEVELOPMENT FACILITY — high-priority violation on file | PCE Off-Site | State |
| 2025-03-14 | NORTH SLOPE BOROUGH / ATQASUK POWER PLANT | PCE Off-Site | State |
| 2025-03-14 | NORTH SLOPE BOROUGH / POINT LAY POWER PLANT | PCE Off-Site | State |
| 2025-03-14 | US AIR FORCE, PACAF REGIONAL SUPPORT C / BARTER ISLAND LRRS | PCE Off-Site | State |
| 2025-03-14 | US AIR FORCE, PACAF REGIONAL SUPPORT C / CAPE LISBURNE LRRS | PCE Off-Site | State |
| 2025-03-13 | HILCORP ALASKA, LLC / OOOGURUK DEVELOPMENT PROJECT | PCE Off-Site | State |
| 2025-03-12 | HILCORP ALASKA, LLC / PRUDHOE BAY OPERATIONS CENTER / MAIN CO | PCE Off-Site | State |
| 2025-03-11 | HILCORP ALASKA, LLC / FLOW STATION #1 (FS 1) — high-priority violation on file | PCE Off-Site | State |
| 2025-03-11 | HILCORP ALASKA, LLC / OOOGURUK DEVELOPMENT PROJECT | PCE Off-Site | State |
| 2025-03-03 | NORTH SLOPE BOROUGH / WAINWRIGHT POWER PLANT | PCE Off-Site | State |
| 2025-03-03 | TDX POWER, LLC / TNSG NORTH POWER PLANT — high-priority violation on file | PCE Off-Site | State |
| 2025-02-28 | OIL SEARCH ALASKA, LLC, A SUBSIDIARY O / NANUSHUK PROCESSING FACILITY (NPF) | PCE Off-Site | State |
| 2025-02-27 | HILCORP ALASKA, LLC / ENDICOTT PRODUCTION FACILITY (END) | PCE Off-Site | State |
| 2025-02-27 | HILCORP ALASKA, LLC / ENDICOTT PRODUCTION FACILITY (END) | PCE Off-Site | State |
| 2025-02-26 | HILCORP ALASKA, LLC / Z-PAD | PCE Off-Site | State |
| 2025-02-26 | CONOCOPHILLIPS ALASKA, INC. / KUPARUK SEAWATER TREATMENT PLANT (STP) | PCE Off-Site | State |
| 2025-02-25 | CONOCOPHILLIPS ALASKA, INC. / CPF 3, KUPARUK CENTRAL PRODUCTION FACIL | PCE Off-Site | State |
| 2025-02-21 | HILCORP ALASKA, LLC / NORTHSTAR PRODUCTION FACILITY (NOR) | PCE Off-Site | State |
| 2025-02-19 | HILCORP ALASKA, LLC / CENTRAL COMPRESSOR PLANT (CCP) | PCE Off-Site | State |
| 2025-02-18 | HILCORP ALASKA, LLC / MILNE POINT PRODUCTION FACILITY (MPU) | PCE Off-Site | State |
| 2025-02-18 | HILCORP ALASKA, LLC / MILNE POINT PRODUCTION FACILITY (MPU) | PCE Off-Site | State |
| 2025-02-18 | HILCORP ALASKA, LLC / POINT THOMSON PRODUCTION FACILITY — high-priority violation on file | PCE Off-Site | State |
| 2025-02-14 | BAROID DRILLING FLUIDS (HALLIBURTON) / PRUDHOE BAY MUD PLANT | PCE Off-Site | State |
| 2025-02-14 | OIL SEARCH ALASKA, LLC, A SUBSIDIARY O / NANUSHUK OPERATIONS PAD | PCE Off-Site | State |
Dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.