| 2024-12-12 | DAKOTA GASIFICATION COMPANY (DGC) - GREAT PLAINS SYNFUELS PLANT - AQ | BEULAH, Mercer, ND | Pass | State |
| 2024-12-10 | HESS TIOGA GAS PLANT LLC - TIOGA GAS PLANT - AQ | TIOGA, Williams, ND | Pass | State |
| 2024-12-05 | MINN-DAK FARMERS COOPERATIVE (MDFC) - WAHPETON PLANT - AQ | WAHPETON, Richland, ND | Pass | State |
| 2024-11-26 | AMERICAN CRYSTAL SUGAR COMPANY (ACS) - DRAYTON PLANT - AQ | DRAYTON, Pembina, ND | Pass | State |
| 2024-11-26 | AMERICAN CRYSTAL SUGAR COMPANY (ACS) - DRAYTON PLANT - AQ | DRAYTON, Pembina, ND | Pass | State |
| 2024-11-20 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-20 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-20 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-20 | ONEOK ROCKIES MIDSTREAM, L.L.C. - TREE TOP COMPRESSOR STATION | MEDORA, Billings, ND | Pass | State |
| 2024-11-15 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-15 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-14 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-14 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-13 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2024-11-13 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2024-11-13 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2024-11-13 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2024-11-13 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2024-11-13 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2024-11-13 | JOHNSON COMPRESSOR STATION | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-13 | JOHNSON COMPRESSOR STATION | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2024-11-12 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-11-07 | NORTH DAKOTA STATE UNIVERSITY (NDSU) - HEATING PLANT - AQ | FARGO, Cass, ND | Pass | State |
| 2024-10-31 | ARCHER DANIELS MIDLAND COMPANY (ADM) - ENDERLIN FACILITY - AQ | ENDERLIN, Ransom, ND | Pass | State |
| 2024-10-31 | BASIN ELECTRIC POWER COOPERATIVE - PIONEER GENERATION STATION - AQ | WILLISTON, Williams, ND | Fail | State |
| 2024-10-30 | BASIN ELECTRIC POWER COOPERATIVE - PIONEER GENERATION STATION - AQ | WILLISTON, Williams, ND | Pass | State |
| 2024-10-29 | EOG- CLARKS CREEK CENTRAL FACILITY | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2024-10-29 | EOG- CLARKS CREEK CENTRAL FACILITY | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2024-10-29 | EOG- CLARKS CREEK CENTRAL FACILITY | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2024-10-29 | EOG- CLARKS CREEK CENTRAL FACILITY | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2024-10-29 | EOG- CLARKS CREEK CENTRAL FACILITY | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2024-10-15 | THARALDSON ETHANOL PLANT I, LLC - AQ | CASSELTON, Cass, ND | Pass | State |
| 2024-10-15 | THARALDSON ETHANOL PLANT I, LLC - AQ | CASSELTON, Cass, ND | Pass | State |
| 2024-10-10 | ONEOK ROCKIES MIDSTREAM, L.L.C. - BEAVERTAIL COMPRESSOR STATION - AQ | WATFORD CITY, McKenzie, ND | N/A | State |
| 2024-10-08 | MINN-DAK FARMERS COOPERATIVE (MDFC) - WAHPETON PLANT - AQ | WAHPETON, Richland, ND | Pass | State |
| 2024-09-23 | TARGA- CLARK'S CREEK COMPRESSOR STATION | KEENE, McKenzie, ND | Pass | U.S. EPA |
| 2024-09-23 | CITY OF BISMARCK - BISMARCK LANDFILL - AQ | BISMARCK, Burleigh, ND | Fail | State |
| 2024-09-18 | TESORO REFINING & MARKETING COMPANY LLC - MARATHON MANDAN REFINERY - AQ | MANDAN, Morton, ND | Pass | State |
| 2024-09-18 | ONEOK ROCKIES MIDSTREAM, L.L.C. - STATELINE GAS PLANT - AQ | WILLISTON, Williams, ND | Pass | State |
| 2024-09-17 | ONEOK ROCKIES MIDSTREAM, L.L.C. - ALEXANDER COMPRESSOR STATION | ALEXANDER, McKenzie, ND | Pass | State |
| 2024-09-12 | ARCHER DANIELS MIDLAND COMPANY (ADM) - ENDERLIN FACILITY - AQ | ENDERLIN, Ransom, ND | Pass | State |
| 2024-09-11 | ARCHER DANIELS MIDLAND COMPANY (ADM) - ENDERLIN FACILITY - AQ | ENDERLIN, Ransom, ND | N/A | State |
| 2024-08-27 | OTTER TAIL POWER COMPANY - COYOTE STATION - AQ | BEULAH, Mercer, ND | Pass | State |
| 2024-08-27 | DAKOTA GASIFICATION COMPANY (DGC) - GREAT PLAINS SYNFUELS PLANT - AQ | BEULAH, Mercer, ND | Pass | State |
| 2024-08-21 | HILAND PARTNERS HOLDINGS LLC - RIVERS EDGE COMPRESSOR STATION | WILLISTON, McKenzie, ND | N/A | State |
| 2024-08-14 | 1804 LTD. LLC - SPRINGBROOK GAS PLANT - AQ | WILLISTON, Williams, ND | Pass | State |
| 2024-08-13 | TARGA- CLARK'S CREEK COMPRESSOR STATION | KEENE, McKenzie, ND | Pass | U.S. EPA |
| 2024-08-08 | ARROW PIPELINE STATION #4 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-07-30 | BUFFALO COMPRESSOR STATION | MANDAREE SEGMENT, Dunn, ND | Pass | U.S. EPA |
| 2024-07-30 | WBI ENERGY TRANSMISSION, INC. - CHARBONNEAU COMPRESSOR STATION - AQ | CARTWRIGHT, McKenzie, ND | Pass | State |
| 2024-07-25 | CITY OF MANDAN - LANDFILL AIR CURTAIN DESTRUCTOR - AQ | MANDAN, Morton, ND | Pass | State |
| 2024-07-23 | HILAND PARTNERS HOLDINGS LLC - STONY CREEK COMPRESSOR STATION | WILLISTON, Williams, ND | Pass | State |
| 2024-07-18 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-07-18 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-07-18 | TARGA BADLANDS JUNCTION COMPRESSOR STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2024-07-18 | HILAND PARTNERS HOLDINGS LLC - NORSE GAS PLANT | MCGREGOR, Divide, ND | N/A | State |
| 2024-07-17 | NORTHERN BORDER PIPELINE COMPANY - MANNING COMPRESSOR STATION - AQ | MANNING, Dunn, ND | Pass | State |
| 2024-07-17 | NORTHERN BORDER PIPELINE COMPANY - ARNEGARD COMPRESSOR STATION - AQ | ARNEGARD, McKenzie, ND | Pass | State |
| 2024-07-16 | NORTHERN BORDER PIPELINE COMPANY - ZEELAND COMPRESSOR STATION - AQ | ZEELAND, McIntosh, ND | Pass | State |
| 2024-07-15 | ARROW PIPELINE STATION #3 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-07-10 | CAVENDISH FARMS, INC. - CAVENDISH FARMS, INC. | JAMESTOWN, Stutsman, ND | Pass | State |
| 2024-07-01 | ONEOK ROCKIES MIDSTREAM, L.L.C. - ANTELOPE COMPRESSOR STATION - AQ | NEW TOWN, McKenzie, ND | Pass | State |
| 2024-06-27 | MONTANA DAKOTA UTILITIES COMPANY (MDU) - R.M. HESKETT STATION - AQ | MANDAN, Morton, ND | Pass | State |
| 2024-06-26 | DAKOTA GASIFICATION COMPANY (DGC) - GREAT PLAINS SYNFUELS PLANT - AQ | BEULAH, Mercer, ND | Pass | State |
| 2024-06-24 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-06-13 | ARROW PIPELINE STATION #3 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-06-13 | CRESTWOOD STATION 2 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-06-12 | CRESTWOOD STATION 5 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-06-11 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2024-06-11 | BASIN ELECTRIC POWER COOPERATIVE - LONESOME CREEK STATION - AQ | ALEXANDER, McKenzie, ND | Pass | State |
| 2024-06-11 | HILAND PARTNERS HOLDINGS LLC - EPPING COMPRESSOR STATION | EPPING, Williams, ND | Pass | State |
| 2024-06-06 | ALLIANCE PIPELINE, L.P. - FAIRMOUNT COMPRESSOR STATION - AQ | FAIRMOUNT, Richland, ND | Pass | State |
| 2024-06-05 | ALLIANCE PIPELINE, L.P. - WIMBLEDON COMPRESSOR STATION - AQ | WIMBLEDON, Barnes, ND | Pass | State |
| 2024-06-04 | ALLIANCE PIPELINE, L.P. - TOWNER COMPRESSOR STATION - AQ | TOWNER, McHenry, ND | Pass | State |
| 2024-05-23 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-05-23 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-05-23 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-05-23 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-05-20 | J.R. SIMPLOT COMPANY - AQ | GRAND FORKS, Grand Forks, ND | Pass | State |
| 2024-05-16 | NORTHERN BORDER PIPELINE COMPANY - GLEN ULLIN COMPRESSOR STATION - AQ | GLEN ULLIN, Morton, ND | Pass | State |
| 2024-05-16 | NORTHERN BORDER PIPELINE COMPANY - ST. ANTHONY COMPRESSOR STATION - AQ | ST. ANTHONY, Morton, ND | Pass | State |
| 2024-05-15 | ONEOK ROCKIES MIDSTREAM, L.L.C. - DEMICKS LAKE GAS PLANT - AQ | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-05-15 | HILAND PARTNERS HOLDINGS LLC - 4RUNNER COMPRESSOR STATION | WILLISTON, Williams, ND | Pass | State |
| 2024-05-14 | STEEL REEF BURKE LLC - LIGNITE GAS PLANT - AQ | LIGNITE, Burke, ND | Pass | State |
| 2024-05-07 | ARROW PIPELINE STATION #3 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-05-07 | HILAND PARTNERS HOLDINGS LLC - RIVERS EDGE COMPRESSOR STATION | WILLISTON, McKenzie, ND | N/A | State |
| 2024-04-30 | HESS NORTH DAKOTA PIPELINES LLC - HAWKEYE GAS FACILITY - AQ | CHARLSON, McKenzie, ND | Pass | State |
| 2024-04-26 | CRESTWOOD STATION 2 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-04-26 | EOG- CLARKS CREEK CENTRAL FACILITY | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2024-04-25 | CRESTWOOD STATION 1 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-04-24 | ARROW PIPELINE STATION #3 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-04-23 | ARROW PIPELINE STATION #7 | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2024-04-23 | EOG- CLARKS CREEK CENTRAL FACILITY | MANDAREE, McKenzie, ND | Pass | U.S. EPA |
| 2024-04-23 | HILAND PARTNERS HOLDINGS LLC - WATFORD CITY GAS PLANT - AQ | ALEXANDER, McKenzie, ND | Pass | State |
| 2024-04-22 | CRESTWOOD STATION 1 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2024-04-19 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-04-17 | HILAND PARTNERS HOLDINGS LLC - EDGEWATER COMPRESSOR STATION | WILLISTON, Mountrail, ND | Pass | State |
| 2024-04-16 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-04-16 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | Pass | State |
| 2024-04-16 | ROUGH RIDER BAKKEN G&P LLC, A SUBSIDIARY OF ENERGY TRANSFER, LP - WILD BASIN GAS | WATFORD CITY, McKenzie, ND | Pass | State |
