EPA Air · stack tests by county and year

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

33Stack 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 Posey 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 Posey County facility page.

Posey County, Indiana, 2026

Air-emissions stack tests in Posey County, other years

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

Date	Facility	Kind	Agency
2026-07-24	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	Pass	State
2026-07-24	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	Pass	State
2026-07-24	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	Pass	State
2026-07-23	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-23	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-23	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-23	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-22	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	Pass	State
2026-07-22	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	Pass	State
2026-07-22	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	Pass	State
2026-07-22	GREEN PLAINS MOUNT VERNON LLC — high-priority violation on file	Pass	State
2026-07-22	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-22	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-22	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-22	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-21	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-21	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-21	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-07-21	VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file	Pass	State
2026-05-12	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	Pass	State
2026-05-12	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	Pass	State
2026-05-12	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	Pass	State
2026-05-12	CONSOLIDATED GRAIN & BARGE COMPANY INC — high-priority violation on file	Pass	State
2026-03-08	BUILDING MATERIALS MANUFACTURING LLC — high-priority violation on file	Pass	State
2026-03-08	BUILDING MATERIALS MANUFACTURING LLC — high-priority violation on file	Pass	State
2026-03-08	BUILDING MATERIALS MANUFACTURING LLC — high-priority violation on file	Pass	State
2026-03-08	BUILDING MATERIALS MANUFACTURING LLC — high-priority violation on file	Pass	State
2026-03-08	BUILDING MATERIALS MANUFACTURING LLC — high-priority violation on file	Pass	State
2026-03-06	BUILDING MATERIALS MANUFACTURING LLC — high-priority violation on file	Pass	State
2026-03-06	BUILDING MATERIALS MANUFACTURING LLC — high-priority violation on file	Pass	State
2026-03-06	BUILDING MATERIALS MANUFACTURING LLC — high-priority violation on file	Pass	State
2026-03-06	BUILDING MATERIALS MANUFACTURING LLC — high-priority violation on file	Pass	State
2026-03-06	BUILDING MATERIALS MANUFACTURING LLC — 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.