EPA Air · stack tests by year

Air-emissions stack tests in 2026

11,110Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit.

States, 2026

Other years

Air-emissions stack tests recorded in 2026

Date	Facility	Where	Kind	Agency
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	GALLO GLASS CO — high-priority violation on file	MODESTO, Stanislaus, CA	Fail	Local
2026-02-18	SILGAN CONTAINERS CORP	RIVERBANK, Stanislaus, CA	Pass	Local
2026-02-18	SILGAN CONTAINERS CORP	RIVERBANK, Stanislaus, CA	Pass	Local
2026-02-18	SILGAN CONTAINERS CORP	RIVERBANK, Stanislaus, CA	Pass	Local
2026-02-18	SILGAN CONTAINERS CORP	RIVERBANK, Stanislaus, CA	Pass	Local
2026-02-18	SILGAN CONTAINERS CORP	RIVERBANK, Stanislaus, CA	Pass	Local
2026-02-18	SILGAN CONTAINERS CORP	RIVERBANK, Stanislaus, CA	Pass	Local
2026-02-18	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	GREELEY AREA, Weld, CO	Fail	State
2026-02-18	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	GREELEY AREA, Weld, CO	Fail	State
2026-02-18	DUKE ENERGY FLORIDA, LLC	CRYSTAL RIVER, Citrus, FL	Pass	State
2026-02-18	MIAMI-DADE WATER AND SEWER DEPARTMENT	MIAMI, Miami-Dade, FL	Pass	State
2026-02-18	MIAMI-DADE WATER AND SEWER DEPARTMENT	MIAMI, Miami-Dade, FL	Pass	State
2026-02-18	U.S. SUGAR CORPORATION	CLEWISTON, Hendry, FL	Pass	State
2026-02-18	U.S. SUGAR CORPORATION	CLEWISTON, Hendry, FL	Pass	State
2026-02-18	U.S. SUGAR CORPORATION	CLEWISTON, Hendry, FL	Pass	State
2026-02-18	U.S. SUGAR CORPORATION	CLEWISTON, Hendry, FL	Pass	State
2026-02-18	U.S. SUGAR CORPORATION	CLEWISTON, Hendry, FL	Pass	State
2026-02-18	U.S. SUGAR CORPORATION	CLEWISTON, Hendry, FL	Pass	State
2026-02-18	U.S. SUGAR CORPORATION	CLEWISTON, Hendry, FL	Pass	State
2026-02-18	FLORIDA POWER & LIGHT (PMR)	INDIANTOWN, Martin, FL	Pass	State
2026-02-18	FLORIDA POWER & LIGHT (PMR)	INDIANTOWN, Martin, FL	Pass	State
2026-02-18	MOSAIC FERTILIZER, LLC — high-priority violation on file	BARTOW, Polk, FL	Pass	State
2026-02-18	MOSAIC FERTILIZER, LLC — high-priority violation on file	BARTOW, Polk, FL	Pass	State
2026-02-18	BRUNSWICK CELLULOSE LLC	BRUNSWICK, Glynn, GA	Pass	State
2026-02-18	BRUNSWICK CELLULOSE LLC	BRUNSWICK, Glynn, GA	Pass	State
2026-02-18	BRUNSWICK CELLULOSE LLC	BRUNSWICK, Glynn, GA	Pass	State
2026-02-18	HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file	MASON CITY, Cerro Gordo, IA	Fail	State
2026-02-18	ELITE OCTANE, LLC — high-priority violation on file	ATLANTIC, Cass, IA	Pass	State
2026-02-18	ELITE OCTANE, LLC — high-priority violation on file	ATLANTIC, Cass, IA	Pass	State
2026-02-18	NATURAL GAS PIPELINE CO OF AMERICA	HERSCHER, Kankakee, IL	Pass	State
2026-02-18	CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file	EAST CHICAGO, Lake, IN	Pass	State
2026-02-18	CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file	EAST CHICAGO, Lake, IN	Pass	State
2026-02-18	SUMMIT SUSTAINABLE INGREDIENTS LLC DBA AMBER WAVE(AIR)	PHILLIPSBURG, Phillips, KS	Pass	State
2026-02-18	VICINITY ENERGY LLC	BOSTON, CITY OF, Suffolk, MA	Pending	State
2026-02-18	VICINITY ENERGY LLC	BOSTON, CITY OF, Suffolk, MA	Pending	State
2026-02-18	NORTHERN NATURAL GAS CO - CARVER	CARVER, Carver, MN	Pass	State
2026-02-18	FLINT HILLS RESOURCES PINE BEND REFINERY	ROSEMOUNT, Dakota, MN	Pass	State
2026-02-18	ALPEK POLYESTER MISSISSIPPI INC — high-priority violation on file	BAY ST. LOUI, Hancock, MS	Pass	State
2026-02-18	ALPEK POLYESTER MISSISSIPPI INC — high-priority violation on file	BAY ST. LOUI, Hancock, MS	Pass	State
2026-02-18	DUKE ENERGY CAROLINAS, LLC - MARSHALL STEAM STATION	TERRELL, Catawba, NC	Pending	State
2026-02-18	DUKE ENERGY CORPORATION LCTS	STANLEY, Lincoln, NC	Pass	State
2026-02-18	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-18	CLARIOS	KERNERSVILLE, Forsyth, NC	Pass	Local
2026-02-18	DARTMOUTH COLLEGE	HANOVER, Grafton, NH	Pass	State
2026-02-18	CONCORD EXPANSION COMPRESSOR STATION	PELHAM, Hillsborough, NH	Pass	State
2026-02-18	BLACK RIVER COMPRESSOR STATION	MALAGA, Chaves, NM	Pass	State
2026-02-18	UNITED STATES ARMY - WHITE SANDS MISSILE RANGE — high-priority violation on file	ORGAN, Dona Ana, NM	Pass	State
2026-02-18	BLACK DIAMOND BATTERY	CARLSBAD, Eddy, NM	Pass	State
2026-02-18	DAKOTA BOLANDER BATTERY	CARLSBAD, Eddy, NM	Pass	State
2026-02-18	JALAPENO COMPRESSOR STATION	LA HUERTA, Eddy, NM	Pass	State
2026-02-18	JALAPENO COMPRESSOR STATION	LA HUERTA, Eddy, NM	Pass	State
2026-02-18	JALAPENO COMPRESSOR STATION	LA HUERTA, Eddy, NM	Pass	State
2026-02-18	JALAPENO COMPRESSOR STATION	LA HUERTA, Eddy, NM	Pass	State
2026-02-18	JALAPENO COMPRESSOR STATION	LA HUERTA, Eddy, NM	Pass	State
2026-02-18	ZIA II GAS PLANT	LOCO HILLS, Lea, NM	Pass	State
2026-02-18	PADUCA BREAKS CENTRAL GATHERING FACILITY	JAL, Lea, NM	Pass	State
2026-02-18	AZTEC COMPRESSOR STATION — high-priority violation on file	MONUMENT, Lea, NM	Pass	State
2026-02-18	AZTEC COMPRESSOR STATION — high-priority violation on file	MONUMENT, Lea, NM	Pass	State
2026-02-18	VANDELAY COMPRESSOR STATION	JAL, Lea, NM	Pass	State
2026-02-18	QUEEN KEELY CTB	MONUMENT, Lea, NM	Pass	State
2026-02-18	FRUIT BASKET COMPRESSOR STATION	MONUMENT, Lea, NM	Pass	State
2026-02-18	FRUIT BASKET COMPRESSOR STATION	MONUMENT, Lea, NM	Pass	State
2026-02-18	GEORGIA PACIFIC GYPSUM, LLC	LAS VEGAS, Clark, NV	Pass	Local
2026-02-18	LUCAS COMPRESSOR STATION — high-priority violation on file	MONROE, TOWNSHIP OF, Richland, OH	Pass	State
2026-02-18	LUCAS COMPRESSOR STATION — high-priority violation on file	MONROE, TOWNSHIP OF, Richland, OH	Pass	State
2026-02-18	LUCAS COMPRESSOR STATION — high-priority violation on file	MONROE, TOWNSHIP OF, Richland, OH	Pass	State
2026-02-18	LUCAS COMPRESSOR STATION — high-priority violation on file	MONROE, TOWNSHIP OF, Richland, OH	Pass	State
2026-02-18	HOLLIDAY PAD 952538	CLARINGTON, Monroe, OH	Pass	State
2026-02-18	HOLLIDAY PAD 952538	CLARINGTON, Monroe, OH	Pass	State
2026-02-18	HOLLIDAY PAD 952538	CLARINGTON, Monroe, OH	Pass	State
2026-02-18	MOSER PAD 952658	CLARINGTON, Monroe, OH	Pass	State
2026-02-18	MOSER PAD 952658	CLARINGTON, Monroe, OH	Pass	State
2026-02-18	MOSER PAD 952658	CLARINGTON, Monroe, OH	Pass	State
2026-02-18	JBS SOUDERTON INC/FRANCONIA TWP — high-priority violation on file	SOUDERTON, Montgomery, PA	Pass	State
2026-02-18	ENERGY CTR HBG LLC/ENERGY CTR PAXTON LLC	HARRISBURG, Dauphin, PA	Pass	State
2026-02-18	APPALACHIA MIDSTREAM SVC LLC/WILMOT COMP STA	WYALUSING, Bradford, PA	Pass	State
2026-02-18	USS/CLAIRTON WORKS — high-priority violation on file	CLAIRTON, Allegheny, PA	Pass	Local
2026-02-18	RHODE ISLAND LFG GENCO LLC — high-priority violation on file	JOHNSTON, TOWN OF, Providence, RI	Pass	State
2026-02-18	WASTE MANAGEMENT, INC. OF TENNESSEE	CAMDEN, Benton, TN	Pass	State
2026-02-18	LIGHTNING RENEWABLES, LLC	MURFREESBORO, Rutherford, TN	Pass	State
2026-02-18	VALERO REFINING COMPANY-TN LLC	MEMPHIS, Shelby, TN	Pass	Local
2026-02-18	VALERO REFINING COMPANY-TN LLC	MEMPHIS, Shelby, TN	Pass	Local

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