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

Other years

Air-emissions stack tests recorded in 2020

Date	Facility	Where	Kind	Agency
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	MODESTO IRRIGATION DISTRICT	RIPON, San Joaquin, CA	Pass	Local
2020-09-08	DCP OPERATING CO - ROCKY TURBINE CS	KERSEY 8.6 MI. NE OF, Weld, CO	Pass	State
2020-09-08	SAMPLE & SON CONSTRUCTION AND DEMOLITION LANDFILL — high-priority violation on file	GROVETOWN, Columbia, GA	Pass	State
2020-09-08	HELCO - OULI	SOUTH KOHALA, Hawaii, HI	Pass	State
2020-09-08	AES HAWAII	KAPOLEI, Honolulu, HI	Pass	State
2020-09-08	SAPPI NORTH AMERICA, INC.	WESTBROOK, Cumberland, ME	Pass	State
2020-09-08	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2020-09-08	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2020-09-08	COLSTRIP STEAM ELECTRIC STATION	COLSTRIP, Rosebud, MT	Pass	State
2020-09-08	HEBRON-BRIDGEWATER REGIONAL REFUSE DISTRICT — high-priority violation on file	BRIDGEWATER, Grafton, NH	Fail	State
2020-09-08	US ARMY PICATINNY ARSENAL — high-priority violation on file	PICATINNY ARSENAL, Morris, NJ	Pass	State
2020-09-08	NASH DRAW COMPRESSOR STATION	LOVING, Eddy, NM	Pass	State
2020-09-08	ET GATHERING PROCESSING LLC / JET COMPRESSOR STATION	JET, Alfalfa, OK	Pass	State
2020-09-08	ENLINK MIDSTREAM SERVICES LLC / CANA GAS PLANT	EL RENO, Canadian, OK	Pass	State
2020-09-08	TPL ARKOMA HOLDINGS LLC / COALGATE TUPELO STONEWALL GAS PLANT — high-priority violation on file	COALGATE, Coal, OK	Pass	State
2020-09-08	TPL ARKOMA HOLDINGS LLC / COALGATE TUPELO STONEWALL GAS PLANT — high-priority violation on file	COALGATE, Coal, OK	Pass	State
2020-09-08	TPL ARKOMA HOLDINGS LLC / COALGATE TUPELO STONEWALL GAS PLANT — high-priority violation on file	COALGATE, Coal, OK	Pass	State
2020-09-08	TPL ARKOMA HOLDINGS LLC / COALGATE TUPELO STONEWALL GAS PLANT — high-priority violation on file	COALGATE, Coal, OK	Pass	State
2020-09-08	ONEOK FIELD SERVICES CO LLC / ANTIOCH BOOSTER STATION	ANTIOCH, Garvin, OK	Pass	State
2020-09-08	ONEOK FIELD SERVICES CO LLC / ANTIOCH BOOSTER STATION	ANTIOCH, Garvin, OK	Pass	State
2020-09-08	ONEOK FIELD SERVICES CO LLC / ANTIOCH BOOSTER STATION	ANTIOCH, Garvin, OK	Pass	State
2020-09-08	ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION	LINDSAY, Garvin, OK	Pass	State
2020-09-08	ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION	LINDSAY, Garvin, OK	Pass	State
2020-09-08	MARKWEST OKLAHOMA GAS CO LLC / DUNN COMPRESSOR STATION	STUART, Hughes, OK	Pass	State
2020-09-08	DCP OPERATING CO LP / SHOLEM GAS PLANT	VELMA, Stephens, OK	Pass	State
2020-09-08	DCP OPERATING CO LP / SHOLEM GAS PLANT	VELMA, Stephens, OK	Pass	State
2020-09-08	DCP OPERATING CO LP / SHOLEM GAS PLANT	VELMA, Stephens, OK	Pass	State
2020-09-08	KIMBERLY CLARK CORP/CHESTER OPR	CHESTER, Delaware, PA	Pass	State
2020-09-08	LAUREL MTN MIDSTREAM OPR LLC/HERMINIE COMP STA	WEST NEWTON, Westmoreland, PA	Pass	State
2020-09-08	MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA	CLAYSVILLE, Washington, PA	Pass	State
2020-09-08	UGI TEXAS CREEK LLC/GROFF COMP STA	CANTON, Bradford, PA	Pass	State
2020-09-08	UGI TEXAS CREEK LLC/JACKSON COMP STA	ROARING BRANCH, Tioga, PA	Pass	State
2020-09-08	COLUMBIA GAS TRANSMISSION CORPORATION	LOUISA, Louisa, VA	Pass	State
2020-09-08	WESTROCK LONGVIEW LLC — high-priority violation on file	LONGVIEW, Cowlitz, WA	Pass	State
2020-09-08	MARY'S DRAW (THUNDER CREEK GAS SERVICES)	CAMPBELL COUNTY, Campbell, WY	Pass	State
2020-09-07	SICULUS, INC.	ALTOONA, Polk, IA	Pass	Local
2020-09-07	DELTA AIR LINES INC - MPLS/SAINT PAUL	MINNEAPOLIS, Hennepin, MN	N/A	State
2020-09-07	PACIFICORP HUNTINGTON	HUNTINGTON, Emery, UT	Pass	State
2020-09-05	COLASKA INC, DBA SECON / ASTEC 200 SUPER SIX DRUM MIX ASPHALT PL	ALASKA, Undetermined, AK	Pass	State
2020-09-05	PRESIDIO PETROLEUM LLC / GUTHRIE 4 34H STATION	BURNS FLAT, Washita, OK	Pass	State
2020-09-04	MM LOPEZ ENERGY LLC	SYLMAR, Los Angeles, CA	Pass	Local
2020-09-04	SDG&E CUYAMACA PEAK ENERGY PLANT	EL CAJON, San Diego, CA	Pending	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local
2020-09-04	ALL AMERICAN OIL & GAS CO	BAKERSFIELD, Kern, CA	Pass	Local

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.