EPA Air · stack tests by year
Air-emissions stack tests in 2021
- 35,950Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2021
- California 17,676
- Ohio 2,582
- Florida 1,540
- Indiana 1,495
- Oklahoma 1,318
- Georgia 1,189
- New Mexico 841
- Pennsylvania 788
- Alabama 621
- Mississippi 589
- Texas 574
- Arkansas 518
- Missouri 515
- Colorado 407
- Iowa 368
- Washington 334
- North Carolina 273
- Michigan 256
- Wisconsin 239
- Wyoming 235
- West Virginia 225
- Kentucky 222
- Delaware 222
- Montana 220
- South Carolina 217
- Minnesota 209
- Kansas 177
- Alaska 143
- Illinois 142
- Utah 140
- Nevada 136
- Virginia 131
- Nebraska 117
- Maine 110
- New Jersey 110
- New York 103
- Connecticut 99
- Tennessee 98
- North Dakota 93
- Arizona 93
- Idaho 90
- Louisiana 69
- Hawaii 64
- Maryland 56
- South Dakota 55
- District of Columbia 54
- New Hampshire 53
- Oregon 45
- Rhode Island 34
- Massachusetts 29
- Puerto Rico 19
- Vermont 17
Other years
Air-emissions stack tests recorded in 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-12-06 | ROCKY MTN NAT GAS - CRYSTAL RIVER CS | CARBONDALE 2.5 MI. W OF, Garfield, CO | Pass | State |
| 2021-12-06 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-12-06 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-12-06 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-12-06 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-12-06 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-12-06 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-12-06 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-12-06 | HALIFAX PAVING, INC. | ORMOND BEACH, Volusia, FL | Pass | State |
| 2021-12-06 | DUVAL ASPHALT PRODUCTS, INC. | JACKSONVILLE, Duval, FL | Pass | State |
| 2021-12-06 | BUNGE NORTH AMERICA EAST LLC | DECATUR, Adams, IN | Pass | State |
| 2021-12-06 | DCP OPERATING - COMANCHE CO. #3 STATION (DEHY) (AIR) | COLDWATER, Comanche, KS | Pass | State |
| 2021-12-06 | METHANEX USA SERVICES LLC - GEISMAR METHANOL PLANT | GEISMAR, Ascension, LA | Pass | State |
| 2021-12-06 | MET COUNCIL METROPOLITAN WATER RESOURCE RECOVERY FACILITY | SAINT PAUL, Ramsey, MN | Pass | State |
| 2021-12-06 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2021-12-06 | BULLDOG COMPRESSOR STATION | LOCO HILLS, Eddy, NM | Pass | State |
| 2021-12-06 | INR OHIO, LLC - HERCHER WELL PAD | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-12-06 | INR OHIO, LLC - HERCHER WELL PAD | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-12-06 | INR OHIO, LLC - HERCHER WELL PAD | LEWISVILLE, Monroe, OH | Pass | State |
| 2021-12-06 | WYNNEWOOD REFINING CO LLC / WYNNEWOOD REFINERY — high-priority violation on file | WYNNEWOOD, Garvin, OK | Pass | State |
| 2021-12-06 | BCE MACH III MIDSTREAM HOLDINGS LLC / LINCOLN GAS PLANT — high-priority violation on file | KINGFISHER, Kingfisher, OK | Pass | State |
| 2021-12-06 | BCE MACH III MIDSTREAM HOLDINGS LLC / LINCOLN GAS PLANT — high-priority violation on file | KINGFISHER, Kingfisher, OK | Pass | State |
| 2021-12-06 | BCE MACH III MIDSTREAM HOLDINGS LLC / LINCOLN GAS PLANT — high-priority violation on file | KINGFISHER, Kingfisher, OK | Pass | State |
| 2021-12-06 | BCE MACH III MIDSTREAM HOLDINGS LLC / LINCOLN GAS PLANT — high-priority violation on file | KINGFISHER, Kingfisher, OK | Pass | State |
| 2021-12-06 | MID AMERICAN STEEL AND WIRE CO / MID AMERICAN STEEL ROLLING MILL | MADILL, Marshall, OK | Pass | State |
| 2021-12-06 | OG AND E / MUSKOGEE GENERATING STATION — high-priority violation on file | FORT GIBSON, Muskogee, OK | Pass | State |
| 2021-12-06 | HILCORP ENERGY CO/PULASKI WHITING CTL FAC — high-priority violation on file | EDINBURG, Lawrence, PA | Pass | State |
| 2021-12-06 | UGI GIBRALTAR GATHERING LLC/GIBRALTAR COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2021-12-06 | BOGGS MATERIALS INC ELGIN PLANT | ELGIN, Kershaw, SC | Pass | State |
| 2021-12-06 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2021-12-06 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2021-12-06 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2021-12-06 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | SINCLAIR, Carbon, WY | Pass | State |
| 2021-12-05 | SOUTHERN NATURAL GAS | REFORM, Pickens, AL | Pass | State |
| 2021-12-05 | SOUTHERN NATURAL GAS | REFORM, Pickens, AL | Pass | State |
| 2021-12-04 | KINDER MORGAN LIQUIDS TERMINALS | CARTERET, Middlesex, NJ | Fail | State |
| 2021-12-03 | COSUMNES POWER PLANT / SMUD | HERALD, Sacramento, CA | Pass | Local |
| 2021-12-03 | SO CAL EDISON CO | AVALON, Los Angeles, CA | Pass | Local |
| 2021-12-03 | PASADENA CITY, DWP (EIS USE) | PASADENA, Los Angeles, CA | Pass | Local |
| 2021-12-03 | GATX CORPORATION | COLTON, San Bernardino, CA | Pass | Local |
| 2021-12-03 | SENTINEL PEAK RESOURCES CA LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
| 2021-12-03 | JR SIMPLOT CO — high-priority violation on file | LATHROP, San Joaquin, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.