EPA Air · stack tests by county and year

Air-emissions stack tests in Mobile County, Alabama, 2026

64Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Mobile County, Alabama during 2026. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Mobile County facility page.

Mobile County, Alabama, 2026

Air-emissions stack tests in Mobile County, other years

Air-emissions stack tests recorded in Mobile County, Alabama, 2026

Date	Facility	Kind	Agency
2026-07-17	LENZING FIBERS INC	Pass	State
2026-07-17	LENZING FIBERS INC	Pass	State
2026-07-17	AM/NS CALVERT LLC	Pass	State
2026-07-13	ALABAMA POWER COMPANY	Pass	State
2026-07-07	AM/NS CALVERT LLC	Pass	State
2026-07-07	SSAB ALABAMA INC	Pass	State
2026-07-07	SSAB ALABAMA INC	Pass	State
2026-07-06	AM/NS CALVERT LLC	Pass	State
2026-07-01	LENZING FIBERS INC	Pass	State
2026-07-01	LENZING FIBERS INC	Pass	State
2026-06-30	LENZING FIBERS INC	Pass	State
2026-06-30	LENZING FIBERS INC	Pass	State
2026-06-05	FLORIDA GAS TRANSMISSION CO	Pass	State
2026-06-01	FLORIDA GAS TRANSMISSION CO	Pass	State
2026-06-01	FLORIDA GAS TRANSMISSION CO	Pass	State
2026-06-01	FLORIDA GAS TRANSMISSION CO	Pass	State
2026-06-01	FLORIDA GAS TRANSMISSION CO	Pass	State
2026-06-01	FLORIDA GAS TRANSMISSION CO	Pass	State
2026-06-01	FLORIDA GAS TRANSMISSION CO	Pass	State
2026-06-01	FLORIDA GAS TRANSMISSION CO	Pass	State
2026-05-26	EVONIK CORPORATION	Pass	State
2026-05-13	KIMBERLY-CLARK CORPORATION	Pass	State
2026-05-13	KIMBERLY-CLARK CORPORATION	Pass	State
2026-05-12	KIMBERLY-CLARK CORPORATION	Pass	State
2026-05-12	KIMBERLY-CLARK CORPORATION	Pass	State
2026-05-07	OUTOKUMPU STAINLESS USA, LLC	Pass	State
2026-05-06	OUTOKUMPU STAINLESS USA, LLC	Pass	State
2026-04-30	ARKEMA INC	Pass	State
2026-04-23	ARKEMA INC	Pass	State
2026-04-22	GULFSTREAM NATURAL GAS SYSTEM LLC	Pass	State
2026-04-22	GULFSTREAM NATURAL GAS SYSTEM LLC	Pass	State
2026-04-22	ARKEMA INC	Pass	State
2026-03-25	GULFSTREAM NATURAL GAS SYSTEM LLC	Pass	State
2026-03-24	WILLIAMS MOBILE BAY PRODUCER SERVICES, LLC	Pass	State
2026-03-24	WILLIAMS MOBILE BAY PRODUCER SERVICES, LLC	Pass	State
2026-03-24	WILLIAMS MOBILE BAY PRODUCER SERVICES, LLC	Pass	State
2026-03-23	GULFSTREAM NATURAL GAS SYSTEM LLC	Pass	State
2026-03-23	GULFSTREAM NATURAL GAS SYSTEM LLC	Pass	State
2026-03-23	GULFSTREAM NATURAL GAS SYSTEM LLC	Pass	State
2026-03-12	W&T OFFSHORE, INC.	Pass	State
2026-03-12	W&T OFFSHORE, INC.	Pass	State
2026-03-11	W&T OFFSHORE, INC.	Pass	State
2026-03-11	W&T OFFSHORE, INC.	Pass	State
2026-03-11	W&T OFFSHORE, INC.	Pass	State
2026-03-04	EVONIK CORPORATION	Pass	State
2026-03-03	SSAB ALABAMA INC	Pass	State
2026-02-26	HIGH-PURITY SILICON AMERICA CORPORATION	Pass	State
2026-02-25	HIGH-PURITY SILICON AMERICA CORPORATION	Pass	State
2026-02-24	HIGH-PURITY SILICON AMERICA CORPORATION	Pass	State
2026-02-24	HIGH-PURITY SILICON AMERICA CORPORATION	Pass	State
2026-02-24	HIGH-PURITY SILICON AMERICA CORPORATION	Pass	State
2026-02-20	OUTOKUMPU STAINLESS USA, LLC	Pass	State
2026-02-17	NOURYON FUNCTIONAL CHEMICALS LLC	Pass	State
2026-02-17	NOURYON FUNCTIONAL CHEMICALS LLC	Pass	State
2026-02-17	NOURYON FUNCTIONAL CHEMICALS LLC	Pass	State
2026-02-04	INEOS PHENOL	Pass	State
2026-02-04	INEOS PHENOL	Pass	State
2026-02-03	INEOS PHENOL	Pass	State
2026-01-29	ALABAMA POWER COMPANY	Pass	State
2026-01-22	AM/NS CALVERT LLC	Pass	State
2026-01-22	AM/NS CALVERT LLC	Pass	State
2026-01-20	AM/NS CALVERT LLC	Pass	State
2026-01-15	AM/NS CALVERT LLC	Pass	State
2026-01-14	VERTEX REFINING ALABAMA LLC	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 Mobile county, AL, for 2026. It lists 64 stack tests recorded in 2026.