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
2020-11-17	WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM	PROCTOR, Marshall, WV	Pass	State
2020-11-17	OMNIS PLEASANTS, LLC, PLEASANTS POWER STATION	WILLOW ISLAND, Pleasants, WV	Pass	State
2020-11-17	ANTERO MIDSTREAM LLC, MIDDLEBOURNE III	WICK, Tyler, WV	Pass	State
2020-11-17	DELRIN USA, LLC, DELRIN USA - WASHINGTON WORKS	WASHINGTON, Wood, WV	Pass	State
2020-11-16	DCP MIDSTREAM	CODEN, Mobile, AL	Pass	State
2020-11-16	DESOTO GATHERING COMPANY LLC - SOUTH BROWNIE CPF 2	HATTIEVILLE, Conway, AR	Pass	State
2020-11-16	DESOTO GATHERING COMPANY LLC - PIKE CPF-1	HATTIEVILLE, Conway, AR	Pass	State
2020-11-16	CLEARWATER PAPER CORPORATION (CYPRESS BEND)	ARKANSAS CITY, Desha, AR	Pass	State
2020-11-16	INTEL CORP - OCOTILLO CAMPUS — high-priority violation on file	MARICOPA COUNTY, Maricopa, AZ	Pass	Local
2020-11-16	MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC)	MOSS LANDING, Monterey, CA	Pass	Local
2020-11-16	ULTRAMAR INC	WILMINGTON, Los Angeles, CA	Pass	Local
2020-11-16	FLORIDA POWER & LIGHT COMPANY	FORT LAUDERDALE, Broward, FL	Pass	State
2020-11-16	TAMPA ELECTRIC COMPANY (TEC)	GIBSONTON, Hillsborough, FL	Pass	State
2020-11-16	SONOCO PRODUCTS - TEMPLE	TEMPLE, Carroll, GA	Pass	State
2020-11-16	BRUNSWICK CELLULOSE LLC	BRUNSWICK, Glynn, GA	Pass	State
2020-11-16	HONDA DEVELOPMENT & MANUFACTURING OF AMERICA LLC INDIANA AUT — high-priority violation on file	GREENSBURG, Decatur, IN	Pass	State
2020-11-16	HONDA DEVELOPMENT & MANUFACTURING OF AMERICA LLC INDIANA AUT — high-priority violation on file	GREENSBURG, Decatur, IN	Pass	State
2020-11-16	HONDA DEVELOPMENT & MANUFACTURING OF AMERICA LLC INDIANA AUT — high-priority violation on file	GREENSBURG, Decatur, IN	Pass	State
2020-11-16	CITY OF EMPORIA - TRANSFER STATION (AIR)	EMPORIA, Lyon, KS	Pass	State
2020-11-16	SOUTH KENT LANDFILL — high-priority violation on file	BYRON CENTER, Kent, MI	Pass	State
2020-11-16	WILLISTON BASIN - HATHAWAY STATION	HATHAWAY, Rosebud, MT	Pass	State
2020-11-16	WILLISTON BASIN - HATHAWAY STATION	HATHAWAY, Rosebud, MT	Pass	State
2020-11-16	CONSOLIDATED METCO, INC.	MONROE, Union, NC	Pass	State
2020-11-16	DAKOTA YEAST, LLC	WAHPETON, Richland, ND	Pass	State
2020-11-16	VALERO RENEWABLE FUELS COMPANY — high-priority violation on file	ALBION, Boone, NE	N/A	State
2020-11-16	VALERO RENEWABLE FUELS COMPANY — high-priority violation on file	ALBION, Boone, NE	N/A	State
2020-11-16	MAGNUM COMPRESSOR STATION — high-priority violation on file	CARLSBAD, Eddy, NM	Pass	State
2020-11-16	MAGNUM COMPRESSOR STATION — high-priority violation on file	CARLSBAD, Eddy, NM	Pass	State
2020-11-16	MAGNUM COMPRESSOR STATION — high-priority violation on file	CARLSBAD, Eddy, NM	Pass	State
2020-11-16	MAGNUM COMPRESSOR STATION — high-priority violation on file	CARLSBAD, Eddy, NM	Pass	State
2020-11-16	MARKWEST HOPEDALE FRACTIONATION FACILITY	JEWETT, Harrison, OH	Pass	State
2020-11-16	ET GATHERING PROCESSING LLC / HYDRO COMPRESSOR STATION	HYDRO, Blaine, OK	Pass	State
2020-11-16	ET GATHERING PROCESSING LLC / HYDRO COMPRESSOR STATION	HYDRO, Blaine, OK	Pass	State
2020-11-16	ET GATHERING PROCESSING LLC / HYDRO COMPRESSOR STATION	HYDRO, Blaine, OK	Pass	State
2020-11-16	ET GATHERING PROCESSING LLC / HYDRO COMPRESSOR STATION	HYDRO, Blaine, OK	Pass	State
2020-11-16	ET GATHERING PROCESSING LLC / HYDRO COMPRESSOR STATION	HYDRO, Blaine, OK	Pass	State
2020-11-16	ET GATHERING PROCESSING LLC / HYDRO COMPRESSOR STATION	HYDRO, Blaine, OK	Pass	State
2020-11-16	XTO ENERGY INC / WASHITA COMPRESSOR STATION	ARDMORE, Carter, OK	Pass	State
2020-11-16	DCP OPERATING CO LP / WILD HOG BOOSTER STATION	BRADLEY, Grady, OK	Pass	State
2020-11-16	DCP OPERATING CO LP / WILD HOG BOOSTER STATION	BRADLEY, Grady, OK	Pass	State
2020-11-16	DCP OPERATING CO LP / WILD HOG BOOSTER STATION	BRADLEY, Grady, OK	Pass	State
2020-11-16	TOM STACK LLC / COOP COMPRESSOR FACILITY	OKARCHE, Kingfisher, OK	Pass	State
2020-11-16	SANTA FE OPERATING LLC / PINEHOLLOW FACILITY — high-priority violation on file	STUART, Pittsburg, OK	Pass	State
2020-11-16	EMPIRE PIPELINE INC/JACKSON COMP STA	LAWRENCEVILLE, Tioga, PA	Pass	State
2020-11-16	CABOT OIL & GAS CORP/KROPA, T. PAD 1	SPRINGVILLE, Susquehanna, PA	Pass	State
2020-11-16	CABOT OIL & GAS CORP/BISHOP, B PAD 1	SPRINGVILLE, Susquehanna, PA	Pass	State
2020-11-16	PRAIRIE AQUATECH MANUFACTURING, LLC DBA HOUDEK MANUFACTURING	VOLGA, Brookings, SD	Pass	State
2020-11-16	RED CEDAR GATHERING COMPANY - MIDWAY COMPRESSOR STATION	IGNACIO, La Plata, CO	Pass	State
2020-11-16	LCRA SAM SEYMOUR FAYETTE POWER PROJECT	LA GRANGE, Fayette, TX	Pass	State
2020-11-16	LCRA SAM SEYMOUR FAYETTE POWER PROJECT	LA GRANGE, Fayette, TX	Pass	State
2020-11-16	LCRA SAM SEYMOUR FAYETTE POWER PROJECT	LA GRANGE, Fayette, TX	Pass	State
2020-11-16	COMPASS MINERALS	UTAH, Undetermined, UT	Pass	State
2020-11-16	LANXESS CORPORATION — high-priority violation on file	KALAMA, Cowlitz, WA	N/A	Local
2020-11-16	HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC)	CAMPBELL COUNTY, Campbell, WY	Pass	State
2020-11-15	PACIFICORP HUNTER	UTAH, Undetermined, UT	Pass	State
2020-11-14	HILCORP ENERGY - FAIRFIELD-NOLKER PRODUCTION FACILITY	LEETONIA, Columbiana, OH	Pass	State
2020-11-14	HILCORP ENERGY - FAIRFIELD-NOLKER PRODUCTION FACILITY	LEETONIA, Columbiana, OH	Pass	State
2020-11-14	HILCORP ENERGY - FAIRFIELD-NOLKER PRODUCTION FACILITY	LEETONIA, Columbiana, OH	Pass	State
2020-11-13	WESTROCK COATED BOARD LLC-MAHRT MILL	PHENIX CITY, Russell, AL	Pass	State
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local
2020-11-13	FRESNO COGEN PARTNERS	SAN JOAQUIN, Fresno, CA	Pass	Local

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.