EPA Air · stack tests by state and year
Air-emissions stack tests in North Dakota, 2026
- 52Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in North Dakota during 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in North Dakota, 2026
North Dakota, other years
Air-emissions stack tests recorded in North Dakota, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-07-20 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | TAT-BLUE BUTTES COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | TAT-BLUE BUTTES COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | TAT-BLUE BUTTES COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | TAT-BLUE BUTTES COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-07-20 | TAT-BLUE BUTTES COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2026-06-11 | BUFFALO COMPRESSOR STATION | MANDAREE SEGMENT, Dunn, ND | Pass | U.S. EPA |
| 2026-06-11 | BUFFALO COMPRESSOR STATION | MANDAREE SEGMENT, Dunn, ND | Pass | U.S. EPA |
| 2026-06-11 | BUFFALO COMPRESSOR STATION | MANDAREE SEGMENT, Dunn, ND | Pass | U.S. EPA |
| 2026-06-11 | BUFFALO COMPRESSOR STATION | MANDAREE SEGMENT, Dunn, ND | Pass | U.S. EPA |
| 2026-06-03 | TARGA- CLARK'S CREEK COMPRESSOR STATION | KEENE, McKenzie, ND | Pass | U.S. EPA |
| 2026-06-03 | TARGA- CLARK'S CREEK COMPRESSOR STATION | KEENE, McKenzie, ND | Pass | U.S. EPA |
| 2026-06-03 | TARGA- CLARK'S CREEK COMPRESSOR STATION | KEENE, McKenzie, ND | Pass | U.S. EPA |
| 2026-05-27 | JOHNSON COMPRESSOR STATION | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2026-05-18 | ONEOK ROCKIES MIDSTREAM, L.L.C. - ANTELOPE COMPRESSOR STATION - AQ | NEW TOWN, McKenzie, ND | N/A | State |
| 2026-05-13 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2026-05-08 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-05-07 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2026-05-07 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2026-05-05 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2026-05-05 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2026-05-04 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2026-05-04 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2026-04-30 | 1804 LTD. LLC - SPRINGBROOK GAS PLANT - AQ | WILLISTON, Williams, ND | Pass | State |
| 2026-04-29 | 1804 LTD. LLC - SPRINGBROOK GAS PLANT - AQ | WILLISTON, Williams, ND | Pass | State |
| 2026-04-21 | HILAND PARTNERS HOLDINGS LLC - EPPING COMPRESSOR STATION | EPPING, Williams, ND | Pass | State |
| 2026-04-09 | HILAND PARTNERS HOLDINGS LLC - STONY CREEK COMPRESSOR STATION | WILLISTON, Williams, ND | Pass | State |
| 2026-04-08 | JOHNSON COMPRESSOR STATION | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2026-04-08 | JOHNSON COMPRESSOR STATION | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2026-04-08 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-04-08 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-04-07 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-04-07 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-04-07 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-04-07 | HILAND PARTNERS HOLDINGS LLC - EDGEWATER COMPRESSOR STATION | WILLISTON, Mountrail, ND | Pass | State |
| 2026-04-06 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-04-06 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-04-06 | TARGA BADLANDS, LLC - HAWKEYE COMPRESSOR STATION - AQ | KEENE, McKenzie, ND | N/A | State |
| 2026-04-01 | NORTHERN BORDER PIPELINE COMPANY - ST. ANTHONY COMPRESSOR STATION - AQ | ST. ANTHONY, Morton, ND | Pass | State |
| 2026-03-31 | NORTHERN BORDER PIPELINE COMPANY - ZEELAND COMPRESSOR STATION - AQ | ZEELAND, McIntosh, ND | Pass | State |
| 2026-03-31 | ONEOK ROCKIES MIDSTREAM, L.L.C. - GARDEN CREEK GAS PLANT - AQ | WATFORD CITY, McKenzie, ND | Pass | State |
| 2026-03-05 | HESS NORTH DAKOTA PIPELINES LLC - EAST NESSON COMPRESSOR STATION 1 - AQ | WHITE EARTH, Mountrail, ND | Pass | State |
| 2026-03-04 | HESS TIOGA GAS PLANT LLC - TIOGA GAS PLANT - AQ | TIOGA, Williams, ND | Pass | State |
| 2026-03-02 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-02-25 | ONEOK ROCKIES MIDSTREAM, L.L.C. - TREE TOP COMPRESSOR STATION | MEDORA, Billings, ND | Pass | State |
| 2026-01-15 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | N/A | State |
| 2026-01-06 | AMERICAN CRYSTAL SUGAR COMPANY (ACS) - HILLSBORO PLANT - AQ | HILLSBORO, Traill, ND | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.