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 |
|---|---|---|---|---|
| 2021-10-13 | SABINE PLANT | ORANGE, Orange, TX | Pass | State |
| 2021-10-13 | INV NYLON CHEMICALS AMERICAS ORANGE SITE — high-priority violation on file | ORANGE, Orange, TX | Pass | State |
| 2021-10-13 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2021-10-13 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2021-10-13 | ATLANTIC WASTE DISPOSAL INC - WAVERLY | WAVERLY, Sussex, VA | Pass | State |
| 2021-10-13 | COVENTRY CLEAN ENERGY CORPORATION — high-priority violation on file | COVENTRY, Orleans, VT | Pass | State |
| 2021-10-13 | CROWN CORK & SEAL CO INC | OLYMPIA, Thurston, WA | Pass | Local |
| 2021-10-13 | NAVAL BASE KITSAP AT BREMERTON | BREMERTON, Kitsap, WA | Pass | Local |
| 2021-10-13 | NAVAL BASE KITSAP AT BREMERTON | BREMERTON, Kitsap, WA | Pass | Local |
| 2021-10-13 | WAUPACA FOUNDRY INC - PLANT 1 | WAUPACA, Waushara, WI | Pass | State |
| 2021-10-13 | NEENAH FOUNDRY COMPANY - NEENAH OPERATIONS (W2179) — high-priority violation on file | NEENAH, Wood, WI | Pass | State |
| 2021-10-13 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2021-10-13 | GREER LIME COMPANY, RIVERTON | RIVERTON, Pendleton, WV | Pass | State |
| 2021-10-13 | GREEN RIVER SODA ASH PLANT (AMERICAN SODA LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2021-10-12 | AURORA ENERGY LLC / CHENA POWER PLANT — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2021-10-12 | AURORA ENERGY LLC / CHENA POWER PLANT — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | N/A | State |
| 2021-10-12 | AURORA ENERGY LLC / CHENA POWER PLANT — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | N/A | State |
| 2021-10-12 | AURORA ENERGY LLC / CHENA POWER PLANT — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | N/A | State |
| 2021-10-12 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2021-10-12 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2021-10-12 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2021-10-12 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2021-10-12 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2021-10-12 | CITY OF JONESBORO - YARD WASTE | JONESBORO, Craighead, AR | Pass | State |
| 2021-10-12 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2021-10-12 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2021-10-12 | FREEPORT MCMORAN - MIAMI SMELTER | MIAMI, Gila, AZ | Pass | State |
| 2021-10-12 | SPI - LINCOLN — high-priority violation on file | LINCOLN, Placer, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2021-10-12 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-10-12 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-10-12 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-10-12 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-10-12 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-10-12 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2021-10-12 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2021-10-12 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2021-10-12 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2021-10-12 | FULCRUM ENERGY - OXBOW 0880 S29 | WALDEN 8.9 MI. N OF, Jackson, CO | N/A | State |
| 2021-10-12 | FULCRUM ENERGY - OXBOW 0880 S29 | WALDEN 8.9 MI. N OF, Jackson, CO | N/A | State |
| 2021-10-12 | WEXPRO CO - POWDER WASH | CRAIG 47.7 MI. NW OF, Moffat, CO | Pass | State |
| 2021-10-12 | UTAH GAS - WEST DRAGON TRAIL C.S. | RANGELY 15.4 MI. S OF, Rio Blanco, CO | Pass | State |
| 2021-10-12 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2021-10-12 | MARTA - LAREDO DRIVE CNG STATION | DECATUR, DeKalb, GA | Pass | State |
| 2021-10-12 | MARTA - LAREDO DRIVE CNG STATION | DECATUR, DeKalb, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2021-10-12 | WESTERN DUBUQUE BIODIESEL LLC | FARLEY, Dubuque, IA | Pass | State |
| 2021-10-12 | ADM CORN PROCESSING | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2021-10-12 | J R SIMPLOT - CALDWELL (NEW) | CALDWELL, Canyon, ID | Pass | State |
| 2021-10-12 | NORTH SHORE WATER RECLAMATION DIST | HIGHLAND PARK, Lake, IL | Pass | State |
| 2021-10-12 | NORTH SHORE WATER RECLAMATION DIST | WAUKEGAN, Lake, IL | Pass | State |
| 2021-10-12 | BUNGE NORTH AMERICA (EAST), LLC — high-priority violation on file | MORRISTOWN, Shelby, IN | Pass | State |
| 2021-10-12 | BUNGE NORTH AMERICA (EAST), LLC — high-priority violation on file | MORRISTOWN, Shelby, IN | Pass | State |
| 2021-10-12 | BUNGE NORTH AMERICA (EAST), LLC — high-priority violation on file | MORRISTOWN, Shelby, IN | Pass | State |
| 2021-10-12 | BUNGE NORTH AMERICA (EAST), LLC — high-priority violation on file | MORRISTOWN, Shelby, IN | Pass | State |
| 2021-10-12 | BUNGE NORTH AMERICA (EAST), LLC — high-priority violation on file | MORRISTOWN, Shelby, IN | Pass | State |
| 2021-10-12 | BUNGE NORTH AMERICA (EAST), LLC — high-priority violation on file | MORRISTOWN, Shelby, IN | Pass | State |
| 2021-10-12 | STERICYCLE (AIR) | KANSAS CITY, Wyandotte, KS | Pass | State |
| 2021-10-12 | ECO MAINE | PORTLAND, Cumberland, ME | Pass | State |
| 2021-10-12 | THE JACKSON LABORATORY | BAR HARBOR, Hancock, ME | Pass | State |
| 2021-10-12 | THE JACKSON LABORATORY | BAR HARBOR, Hancock, ME | Pass | State |
| 2021-10-12 | MICHIGAN STATE UNIVERSITY | EAST LANSING, Ingham, MI | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.