ICIS-AIR AK0000000218500007
HILCORP ALASKA, LLC / SEAWATER INJECTION PLANT EAST (SIPE), North Slope Borough, AK: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 44Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 0Formal enforcement actions since January 1, 2017
HILCORP ALASKA, LLC / SEAWATER INJECTION PLANT EAST (SIPE) is on EPA’s ICIS-AIR register at SECTION 31, TOWNSHIP 11N, RANGE 15E, UMIAT M, North Slope Borough in North Slope County, Alaska: operating status operating, emissions classification major source, current violation status “No Violation Identified”.
What stands out
- The newest of the 55 events on file is a compliance evaluation dated September 16, 2026.
- Its events on file run from April 11, 2017 through September 16, 2026.
- Of its 44 compliance evaluations on file, 5 are a full compliance evaluation.
- 1 of the 3 stack tests on file is recorded as failed.
- The register holds 76 air-emissions sources in North Slope County, Alaska.
Every line is computed by formula from the record’s stored figures; nothing is estimated.
Identity
| Facility as filed | HILCORP ALASKA, LLC / SEAWATER INJECTION PLANT EAST (SIPE) |
|---|---|
| ICIS-AIR ID | AK0000000218500007 |
| EPA facility registry ID | 110070256753 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (HPV field) | No Violation Identified |
| Address | SECTION 31, TOWNSHIP 11N, RANGE 15E, UMIAT M, North Slope Borough, AK 99734 |
| County | North Slope County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Oil and gas extraction (NAICS 2111) |
| EPA region | 10 |
Programs and pollutants
The program, pollutant and Title V files are not loaded: what this page covers.
Compliance evaluations
- 44Evaluations since January 1, 2017
- 5Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| September 16, 2026 | PCE Off-Site | State | Title V Permits |
| May 26, 2026 | PCE Off-Site | State | Title V Permits |
| March 3, 2026 | PCE Off-Site | State | Title V Permits |
| December 5, 2025 | PCE Off-Site | State | Title V Permits |
| August 20, 2025 | PCE Off-Site | State | Title V Permits |
| August 19, 2025 | PCE Off-Site | State | Title V Permits |
| March 26, 2025 | PCE Off-Site | State | Title V Permits |
| December 19, 2024 | FCE On-Site | State | Title V Permits |
| December 19, 2024 | PCE Off-Site | State | Title V Permits |
| November 18, 2024 | PCE Off-Site | State | Title V Permits |
| October 23, 2024 | PCE Off-Site | State | Title V Permits |
| September 23, 2024 | PCE Off-Site | State | Title V Permits |
| July 1, 2024 | PCE Off-Site | State | Title V Permits |
| November 24, 2023 | PCE Off-Site | State | Title V Permits |
| June 30, 2023 | PCE Off-Site | State | Title V Permits |
| May 18, 2023 | PCE Off-Site | State | Title V Permits |
| December 29, 2022 | FCE On-Site | State | Title V Permits |
| December 9, 2022 | PCE Off-Site | State | Title V Permits |
| November 8, 2022 | PCE Off-Site | State | Title V Permits |
| June 21, 2022 | PCE Off-Site | State | Title V Permits |
| May 13, 2022 | PCE Off-Site | State | Title V Permits |
| January 20, 2022 | PCE Off-Site | State | Title V Permits |
| November 18, 2021 | PCE Off-Site | State | Title V Permits |
| June 18, 2021 | PCE Off-Site | State | Title V Permits |
| April 15, 2021 | PCE Off-Site | State | Title V Permits |
| December 7, 2020 | FCE Off-Site | State | Title V Permits |
| November 20, 2020 | PCE Off-Site | State | Title V Permits |
| October 22, 2020 | PCE Off-Site | State | Title V Permits |
| June 4, 2020 | PCE Off-Site | State | Title V Permits |
| May 15, 2020 | PCE Off-Site | State | Title V Permits |
| December 23, 2019 | PCE Off-Site | State | Title V Permits |
| November 18, 2019 | PCE Off-Site | State | Title V Permits |
| August 5, 2019 | PCE Off-Site | State | Title V Permits |
| March 19, 2019 | FCE On-Site | State | Title V Permits |
| March 14, 2019 | PCE Off-Site | State | Title V Permits |
| December 6, 2018 | PCE Off-Site | State | Title V Permits |
| September 14, 2018 | PCE Off-Site | State | Title V Permits |
| July 6, 2018 | PCE Off-Site | State | Title V Permits |
| March 19, 2018 | PCE Off-Site | State | Title V Permits |
| December 15, 2017 | PCE Off-Site | State | Title V Permits |
| November 8, 2017 | PCE Off-Site | State | Title V Permits |
| August 3, 2017 | PCE Off-Site | State | Title V Permits |
| May 12, 2017 | FCE On-Site | State | Title V Permits |
| April 11, 2017 | PCE Off-Site | State | Title V Permits |
Violations
- 2Violation determinations since January 1, 2017
- 0Of them high-priority
What high-priority and federally reportable violations mean.
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| December 30, 2021 | Earliest FRV determination | State | Title V Permits |
| February 9, 2021 | Earliest FRV determination | State | Title V Permits |
Enforcement and penalties
0 of the formal enforcement actions carry a penalty filed above zero. How a penalty is shown.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| December 3, 2025 | Warning Letter | State |
| December 30, 2024 | Warning Letter | State |
| December 29, 2022 | Warning Letter | State |
| October 19, 2021 | Warning Letter | State |
| March 19, 2019 | Warning Letter | State |
| May 12, 2017 | Warning Letter | State |
Stack tests
- 3Stack tests since January 1, 2017
- 1Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| September 2, 2022 | Pass | State |
| September 2, 2022 | Pass | State |
| November 17, 2021 | Fail | State |
Watch HILCORP ALASKA, LLC / SEAWATER INJECTION PLANT EAST (SIPE)
Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110070256753).
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EPA ICIS-AIR download, loaded September 14, 2026.