EPA Air · stack tests by year
Air-emissions stack tests in 2025
- 26,291Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2025
- California 5,390
- Ohio 2,213
- New Mexico 1,801
- Indiana 1,619
- Florida 1,419
- Wyoming 1,362
- Georgia 1,233
- Oklahoma 1,229
- Pennsylvania 951
- Missouri 768
- Alabama 693
- Mississippi 688
- Arkansas 619
- Iowa 500
- Colorado 405
- Michigan 387
- Texas 308
- North Carolina 275
- Illinois 264
- Washington 251
- Wisconsin 245
- Minnesota 238
- West Virginia 224
- Delaware 212
- South Carolina 210
- Kentucky 204
- Kansas 202
- Connecticut 178
- Utah 175
- Montana 174
- Virginia 170
- Tennessee 168
- Alaska 152
- Nebraska 145
- North Dakota 143
- Maine 131
- New York 124
- Louisiana 117
- Arizona 116
- Idaho 111
- Nevada 73
- New Hampshire 59
- Massachusetts 59
- Oregon 56
- Hawaii 53
- Maryland 51
- South Dakota 46
- Rhode Island 30
- District of Columbia 28
- Puerto Rico 14
- Vermont 4
- New Jersey 4
Other years
Air-emissions stack tests recorded in 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-09-10 | WHITEHORN COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2025-09-10 | VALDEZ BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
| 2025-09-10 | VALDEZ BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
| 2025-09-10 | FORTY-NINER EAST | MALAGA, Eddy, NM | Fail | State |
| 2025-09-10 | NITRO COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2025-09-10 | TGP COMPRESSOR STATION 233 | YORK, Livingston, NY | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2025-09-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.