EPA Air · stack tests by county and year

Air-emissions stack tests in Warrick County, Indiana, 2026

42Stack 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 Warrick County, Indiana 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 Warrick County facility page.

Warrick County, Indiana, 2026

Air-emissions stack tests in Warrick County, other years

Air-emissions stack tests recorded in Warrick County, Indiana, 2026

Date	Facility	Kind	Agency
2026-07-31	SIGECO - FB CULLEY GENERATING STATION	Pass	State
2026-06-26	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Pass	State
2026-06-26	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Pass	State
2026-06-26	WARRICK NEWCO LLC — high-priority violation on file	Fail	State
2026-06-26	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-06-26	WARRICK NEWCO LLC — high-priority violation on file	Fail	State
2026-06-25	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Fail	State
2026-06-25	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Pass	State
2026-06-24	WARRICK NEWCO LLC — high-priority violation on file	Fail	State
2026-06-24	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-06-24	WARRICK NEWCO LLC — high-priority violation on file	Fail	State
2026-06-17	SIGECO - FB CULLEY GENERATING STATION	Pass	State
2026-05-20	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-05-20	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-05-18	SIGECO - FB CULLEY GENERATING STATION	Pass	State
2026-05-14	WARRICK NEWCO LLC — high-priority violation on file	Fail	State
2026-05-14	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-05-14	WARRICK NEWCO LLC — high-priority violation on file	Fail	State
2026-04-21	METZGER CONSTRUCTION COMPANY INCORPORATED	Pass	State
2026-04-21	METZGER CONSTRUCTION COMPANY INCORPORATED	Pass	State
2026-04-21	METZGER CONSTRUCTION COMPANY INCORPORATED	Pass	State
2026-04-21	METZGER CONSTRUCTION COMPANY INCORPORATED	Pass	State
2026-04-07	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Pass	State
2026-03-25	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Fail	State
2026-03-25	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Fail	State
2026-03-25	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Fail	State
2026-03-25	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Pass	State
2026-03-24	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Fail	State
2026-03-24	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Pass	State
2026-03-20	SIGECO - FB CULLEY GENERATING STATION	Pass	State
2026-02-12	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-02-12	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-02-12	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-02-12	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-02-12	WARRICK NEWCO LLC — high-priority violation on file	Fail	State
2026-02-12	WARRICK NEWCO LLC — high-priority violation on file	Pass	State
2026-02-04	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Pass	State
2026-02-02	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Pass	State
2026-02-02	KAISER ALUMINUM WARRICK LLC — high-priority violation on file	Pass	State
2026-02-02	KAISER ALUMINUM WARRICK LLC — high-priority violation on file	Pass	State
2026-01-16	SIGECO - FB CULLEY GENERATING STATION	Pass	State
2026-01-06	ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file	Pass	State

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