EPA Air · stack tests by year
Air-emissions stack tests in 2020
- 33,437Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2020
- California 15,352
- Ohio 2,194
- Florida 1,532
- Oklahoma 1,517
- Indiana 1,473
- Georgia 1,147
- New Mexico 846
- Pennsylvania 725
- Alabama 674
- Texas 617
- Missouri 607
- Arkansas 589
- Mississippi 438
- Colorado 429
- Washington 407
- Iowa 355
- North Carolina 274
- Wyoming 235
- Wisconsin 229
- Michigan 222
- South Carolina 221
- Montana 217
- Minnesota 213
- Delaware 211
- Kentucky 184
- West Virginia 175
- Utah 158
- Tennessee 149
- Kansas 144
- Nebraska 142
- Alaska 141
- Maine 136
- Nevada 134
- Virginia 132
- Illinois 129
- North Dakota 129
- New Jersey 122
- Connecticut 110
- Arizona 97
- New York 93
- Hawaii 84
- Louisiana 83
- Idaho 81
- New Hampshire 72
- Maryland 46
- South Dakota 46
- Oregon 39
- Rhode Island 30
- District of Columbia 30
- Vermont 17
- Massachusetts 7
- Puerto Rico 3
Other years
Air-emissions stack tests recorded in 2020
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2020-09-30 | USG INTERIORS LLC - CLOQUET MN | CLOQUET, Carlton, MN | Pass | State |
| 2020-09-30 | MET COUNCIL - SENECA WWTP | EAGAN, Dakota, MN | Pass | State |
| 2020-09-30 | BASF AGRICULTURAL SOLUTIONS US LLC | PALMYRA, Marion, MO | Pending | State |
| 2020-09-30 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2020-09-30 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Fail | State |
| 2020-09-30 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Fail | State |
| 2020-09-30 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2020-09-30 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2020-09-30 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2020-09-30 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2020-09-30 | WESTROCK KRAFT PAPER, LLC | ROANOKE RAPIDS, Halifax, NC | Pass | State |
| 2020-09-30 | WILSONART LLC | FLETCHER, Henderson, NC | Pass | State |
| 2020-09-30 | NCEMC - OCRACOKE | OCRACOKE, Hyde, NC | Pass | State |
| 2020-09-30 | CARGILL INC — high-priority violation on file | BLAIR, Washington, NE | Pass | State |
| 2020-09-30 | TEXAS EASTERN PIPELINE-LAMBERTVILLE STA. | MOUNT AIRY, Hunterdon, NJ | Pass | State |
| 2020-09-30 | HF SINCLAIR NAVAJO REFINING LLC (ARTESIA) — high-priority violation on file | ARTESIA, Eddy, NM | Pass | State |
| 2020-09-30 | WOLVERINE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2020-09-30 | WOLVERINE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2020-09-30 | CONOCOPHILLIPS - WAR HAMMER 25 WF1 | MALAGA, Lea, NM | Pass | State |
| 2020-09-30 | INTEL - RIO RANCHO FACILITY | RIO RANCHO, Sandoval, NM | Pass | State |
| 2020-09-30 | INTEL - RIO RANCHO FACILITY | RIO RANCHO, Sandoval, NM | Pass | State |
| 2020-09-30 | NARROWS GENERATING STATION | BROOKLYN (6102), Kings, NY | Fail | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | WILLIAMS ARCHER COMPRESSOR STATION | CADIZ, Harrison, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | EQM OLYMP MIDSTM GOLIATH, GODZILLA FORTRESS CMPRSR STNS | BEALLSVILLE, Monroe, OH | Pass | State |
| 2020-09-30 | BLUE RACER MIDSTREAM LLC - NOBLE CO FIELD STATION #1 | SUMMERFIELD, Noble, OH | Pass | State |
| 2020-09-30 | BLUE RACER MIDSTREAM LLC - NOBLE CO FIELD STATION #1 | SUMMERFIELD, Noble, OH | Pass | State |
| 2020-09-30 | BLUE RACER MIDSTREAM LLC - NOBLE CO FIELD STATION #1 | SUMMERFIELD, Noble, OH | Pass | State |
| 2020-09-30 | BLUE RACER MIDSTREAM LLC - NOBLE CO FIELD STATION #1 | SUMMERFIELD, Noble, OH | Pass | State |
| 2020-09-30 | BLUE RACER MIDSTREAM LLC - NOBLE CO FIELD STATION #1 | SUMMERFIELD, Noble, OH | Pass | State |
| 2020-09-30 | BLUE RACER MIDSTREAM LLC - NOBLE CO FIELD STATION #1 | SUMMERFIELD, Noble, OH | Pass | State |
| 2020-09-30 | XTO ENERGY INC / COOK CDP | ARDMORE, Carter, OK | Pass | State |
| 2020-09-30 | XTO ENERGY INC / COOK CDP | ARDMORE, Carter, OK | Pass | State |
| 2020-09-30 | FORMENTERA OPERATIONS / O QUINN 1 10H | HUNTER, Garfield, OK | Pass | State |
| 2020-09-30 | FORMENTERA OPERATIONS / TLZ RANCH 1 27H | HUNTER, Garfield, OK | Pass | State |
| 2020-09-30 | MARKWEST OKLAHOMA GAS CO LLC / DOROTHY COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2020-09-30 | MARKWEST OKLAHOMA GAS CO LLC / DOROTHY COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2020-09-30 | MARKWEST OKLAHOMA GAS CO LLC / JACKSON COMPRESSOR STATION | SAYRE, Roger Mills, OK | Pass | State |
| 2020-09-30 | MARKWEST OKLAHOMA GAS CO LLC / JACKSON COMPRESSOR STATION | SAYRE, Roger Mills, OK | Pass | State |
| 2020-09-30 | DYNAMET INC/ARDEN FAC | WASHINGTON, Washington, PA | Fail | State |
| 2020-09-30 | WILLIAMS FIELD SVC CO LLC/LATHROP COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2020-09-30 | OWENS CORNING INSULATING SYSTEMS WAXAHACHIE PLANT | WAXAHACHIE, Ellis, TX | Pass | State |
| 2020-09-30 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2020-09-30 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2020-09-30 | WESTROCK VIRGINIA LLC - COVINGTON | COVINGTON, Covington (city), VA | Pass | State |
| 2020-09-30 | SHELBURNE LIMESTONE CORPORATION (SHELBURNE) | SHELBURNE, Chittenden, VT | Pass | State |
| 2020-09-30 | BP WEST COAST PRODUCTS LLC — high-priority violation on file | BLAINE, Whatcom, WA | Pass | Local |
| 2020-09-30 | GEORGIA-PACIFIC GYPSUM LLC | TACOMA, Pierce, WA | Pass | Local |
| 2020-09-30 | TRANSALTA CENTRALIA GENERATION, LLC — high-priority violation on file | CENTRALIA, Lewis, WA | Pass | Local |
| 2020-09-30 | TRANSALTA CENTRALIA GENERATION, LLC — high-priority violation on file | CENTRALIA, Lewis, WA | Pending | Local |
| 2020-09-30 | ACE ETHANOL, LLC | STANLEY, Chippewa, WI | Fail | State |
| 2020-09-30 | DIDION MILLING INC. | CAMBRIA, Columbia, WI | Fail | State |
| 2020-09-30 | APPALACHIA MIDSTREAM SERVICES, L.L.C., MILLER STATION | BANNEN, Marshall, WV | Pass | State |
| 2020-09-30 | CHEYENNE PLANT (DYNO NOBEL INC) — high-priority violation on file | CHEYENNE, Laramie, WY | Pass | State |
| 2020-09-30 | PALE HORSE COMPRESSOR STATION (JACKALOPE GAS GATHERING SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2020-09-29 | US AIR FORCE (EIELSON) / EIELSON AIR FORCE BASE — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-09-29 | HILCORP ALASKA, LLC / KENAI GAS FIELD PAD 14-6 | KENAI, Kenai Peninsula, AK | Pass | State |
| 2020-09-29 | KRONOSPAN USA — high-priority violation on file | EASTABOGA, Calhoun, AL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in 2020. It lists 33,437 stack tests recorded nationwide in 2020.