EPA Air · stack tests by state and year

Air-emissions stack tests in Texas, 2026

316Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Texas during 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in Texas, 2026

Texas, other years

Air-emissions stack tests recorded in Texas, 2026

Date	Facility	Where	Kind	Agency
2026-01-22	GUARDIAN INDUSTRIES	CORSICANA, Navarro, TX	Pass	State
2026-01-22	BRIDGEPORT GAS PLANT	BRIDGEPORT, Wise, TX	Pass	State
2026-01-20	PORT ARTHUR REFINERY — high-priority violation on file	PORT ARTHUR, Jefferson, TX	Pass	State
2026-01-14	GODLEY PLANT	GODLEY, Johnson, TX	Pass	State
2026-01-13	UCC SEADRIFT OPERATIONS	SEADRIFT, Calhoun, TX	N/A	State
2026-01-13	NORTH WORD GAS PLANT	HALLETTSVILLE, Lavaca, TX	Pass	State
2026-01-13	NORTH WORD GAS PLANT	HALLETTSVILLE, Lavaca, TX	Pass	State
2026-01-12	VALERO CORPUS CHRISTI REFINERY EAST PLANT	CORPUS CHRISTI, Nueces, TX	Pass	State
2026-01-12	VALERO CORPUS CHRISTI REFINERY EAST PLANT	CORPUS CHRISTI, Nueces, TX	Pass	State
2026-01-12	VALERO CORPUS CHRISTI REFINERY EAST PLANT	CORPUS CHRISTI, Nueces, TX	Pass	State
2026-01-12	VALERO CORPUS CHRISTI REFINERY EAST PLANT	CORPUS CHRISTI, Nueces, TX	Pass	State
2026-01-12	VALERO CORPUS CHRISTI REFINERY EAST PLANT	CORPUS CHRISTI, Nueces, TX	Pass	State
2026-01-12	VALERO CORPUS CHRISTI REFINERY EAST PLANT	CORPUS CHRISTI, Nueces, TX	Pass	State
2026-01-12	VALERO CORPUS CHRISTI REFINERY EAST PLANT	CORPUS CHRISTI, Nueces, TX	Pass	State
2026-01-12	VALERO CORPUS CHRISTI REFINERY WEST PLANT — high-priority violation on file	CORPUS CHRISTI, Nueces, TX	Pass	State
2026-01-08	WESTROCK TEXAS	EVADALE, Jasper, TX	Pass	State

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