Clean Air Act stationary source · ICIS-AIR ND0000003810500133
BASIN ELECTRIC POWER COOPERATIVE - PIONEER GENERATION STATION - AQ, Williston, ND: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 8Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 0Formal enforcement actions since January 1, 2017
BASIN ELECTRIC POWER COOPERATIVE - PIONEER GENERATION STATION - AQ, at 5639 151ST AVE NW, Williston in Williams County, North Dakota, is an operating major source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.
Identity
| Facility as filed | BASIN ELECTRIC POWER COOPERATIVE - PIONEER GENERATION STATION - AQ |
|---|---|
| ICIS-AIR ID | ND0000003810500133 |
| EPA facility registry ID | 110070262484 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 5639 151ST AVE NW, Williston, ND 58801 |
| County | Williams County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Utilities (NAICS 2211) |
| SIC code | 4911 |
| EPA region | 08 |
Cited to the EPA ICIS-AIR facility file (ECHO download).
Programs and pollutants
Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs BASIN ELECTRIC POWER COOPERATIVE - PIONEER GENERATION STATION - AQ is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.
Compliance evaluations
- 8Evaluations since January 1, 2017
- 8Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| June 26, 2025 | FCE On-Site | State | Acid Rain Deposition Control (CAA Title IV); Stratospheric Ozone Protection; 40 CFR Part 63 Area Sources; New Source Performance Standards; New Source Review Permit Requirements; State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| August 14, 2024 | FCE On-Site | State | Acid Rain Deposition Control (CAA Title IV); Stratospheric Ozone Protection; 40 CFR Part 63 Area Sources; New Source Performance Standards; New Source Review Permit Requirements; State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 25, 2023 | FCE On-Site | State | Acid Rain Deposition Control (CAA Title IV); Stratospheric Ozone Protection; 40 CFR Part 63 Area Sources; New Source Performance Standards; New Source Review Permit Requirements; State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 27, 2022 | FCE On-Site | State | Acid Rain Deposition Control (CAA Title IV); Stratospheric Ozone Protection; 40 CFR Part 63 Area Sources; New Source Performance Standards; New Source Review Permit Requirements; State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| August 31, 2021 | FCE On-Site | State | Acid Rain Deposition Control (CAA Title IV); Stratospheric Ozone Protection; 40 CFR Part 63 Area Sources; MACT Standards (40 CFR Part 63); New Source Performance Standards; New Source Review Permit Requirements; State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| July 22, 2020 | FCE On-Site | State | Acid Rain Deposition Control (CAA Title IV); Stratospheric Ozone Protection; 40 CFR Part 63 Area Sources; MACT Standards (40 CFR Part 63); New Source Performance Standards; New Source Review Permit Requirements; State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 13, 2019 | FCE On-Site | State | Acid Rain Deposition Control (CAA Title IV); Stratospheric Ozone Protection; 40 CFR Part 63 Area Sources; MACT Standards (40 CFR Part 63); New Source Performance Standards; New Source Review Permit Requirements; State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 17, 2018 | FCE On-Site | State | Acid Rain Deposition Control (CAA Title IV); Stratospheric Ozone Protection; 40 CFR Part 63 Area Sources; MACT Standards (40 CFR Part 63); New Source Performance Standards; New Source Review Permit Requirements; State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
Violations
- 0Violation determinations since January 1, 2017
- 0Of them high-priority
A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.
EPA’s violation history file holds no violation for ICIS-AIR ND0000003810500133 since January 1, 2017.
Enforcement and penalties
0 formal enforcement actions since January 1, 2017, 0 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.
Informal enforcement
EPA’s informal action file holds no notice or warning for ICIS-AIR ND0000003810500133 since January 1, 2017.
Stack tests
- 11Stack tests since January 1, 2017
- 1Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| November 11, 2025 | Pass | State |
| October 14, 2025 | Pass | State |
| June 25, 2025 | Pass | State |
| June 24, 2025 | Pass | State |
| October 31, 2024 | Fail | State |
| October 30, 2024 | Pass | State |
| November 14, 2023 | Pass | State |
| August 22, 2023 | Pass | State |
| October 11, 2022 | Pass | State |
| July 12, 2022 | Pass | State |
| June 11, 2019 | Pass | State |
Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.
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How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110070262484 there.
Nearby on the register
- Air-emissions sources in Williams County
- Every source record in Williams County, A to Z
- Air-emissions sources in North Dakota
- Every source record in North Dakota, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.