EPA Air · stack tests by county and year

Air-emissions stack tests in Monroe County, Ohio, 2026

222Stack 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 Monroe County, Ohio 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 Monroe County facility page.

Air-emissions stack tests in Monroe County, other years

Air-emissions stack tests recorded in Monroe County, Ohio, 2026

Date	Facility	Kind	Agency
2026-09-17	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-17	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-17	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-16	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-16	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-16	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-16	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-16	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-16	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-16	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-14	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-14	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-14	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-14	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-14	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-14	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-09-04	TRIAD HUNTER LLC - FORNI PAD	Pass	State
2026-09-04	TRIAD HUNTER LLC - FORNI PAD	Pass	State
2026-09-04	TRIAD HUNTER LLC - FORNI PAD	Pass	State
2026-09-04	DIVERSIFIED PRODUCTION LLC - MOONRAKER PAD	Pass	State
2026-09-04	DIVERSIFIED PRODUCTION LLC - MOONRAKER PAD	Pass	State
2026-09-04	DIVERSIFIED PRODUCTION LLC - MOONRAKER PAD	Pass	State
2026-08-27	INR OHIO, LLC - HERCHER WELL PAD	Pass	State
2026-08-27	INR OHIO, LLC - HERCHER WELL PAD	Pass	State
2026-08-27	INR OHIO, LLC - HERCHER WELL PAD	Pass	State
2026-08-26	RIGGENBACH PAD 952771	Pass	State
2026-08-26	RIGGENBACH PAD 952771	Pass	State
2026-08-26	RIGGENBACH PAD 952771	Pass	State
2026-08-26	RIGGENBACH PAD 952771	Pass	State
2026-08-26	RIGGENBACH PAD 952771	Pass	State
2026-08-26	RIGGENBACH PAD 952771	Pass	State
2026-08-26	MARKWEST LAREW COMPRESSOR STATION	Pass	State
2026-08-26	MARKWEST LAREW COMPRESSOR STATION	Pass	State
2026-08-26	MARKWEST LAREW COMPRESSOR STATION	Pass	State
2026-08-26	MARKWEST LAREW COMPRESSOR STATION	Pass	State
2026-08-26	MARKWEST LAREW COMPRESSOR STATION	Pass	State
2026-08-26	MARKWEST LAREW COMPRESSOR STATION	Pass	State
2026-08-25	FUCHS PAD 952477	Pass	State
2026-08-25	FUCHS PAD 952477	Pass	State
2026-08-25	FUCHS PAD 952477	Pass	State
2026-08-25	FUCHS PAD 952477	Pass	State
2026-08-25	FUCHS PAD 952477	Pass	State
2026-08-25	FUCHS PAD 952477	Pass	State
2026-08-25	FUCHS PAD 952477	Pass	State
2026-08-25	FUCHS PAD 952477	Pass	State
2026-08-19	SAWYERS PAD 952878	Pass	State
2026-08-19	SAWYERS PAD 952878	Pass	State
2026-08-19	SAWYERS PAD 952878	Pass	State
2026-08-19	WILEY PAD 952982	Pass	State
2026-08-19	WILEY PAD 952982	Pass	State
2026-08-19	WILEY PAD 952982	Pass	State
2026-08-18	RICHARD STALDER PAD 952766	Pass	State
2026-08-18	RICHARD STALDER PAD 952766	Pass	State
2026-08-18	RICHARD STALDER PAD 952766	Pass	State
2026-08-18	HERRICK PAD 952535	Pass	State
2026-08-18	HERRICK PAD 952535	Pass	State
2026-08-18	HERRICK PAD 952535	Pass	State
2026-07-30	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-07-30	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-07-30	EXPAND OPERATING, LLC - MILLER PAD	Pass	State
2026-07-14	INR MIDSTREAM, LLC - REUSSER	Pass	State
2026-07-14	INR MIDSTREAM, LLC - REUSSER	Pass	State
2026-07-14	INR MIDSTREAM, LLC - REUSSER	Pass	State
2026-07-14	INR MIDSTREAM, LLC - REUSSER	Pass	State
2026-07-14	INR MIDSTREAM, LLC - REUSSER	Pass	State
2026-07-14	INR MIDSTREAM, LLC - REUSSER	Pass	State
2026-07-14	INR MIDSTREAM, LLC - REUSSER	Pass	State
2026-07-14	INR MIDSTREAM, LLC - REUSSER	Pass	State
2026-07-14	INR MIDSTREAM, LLC - REUSSER	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-07-01	DOMINION EAST OHIO - SWITZERLAND COMPRESSOR STATION	Pass	State
2026-06-12	GULFPORT APPALACHIA, LLC - GEHRIG PAD	Pass	State
2026-06-12	GULFPORT APPALACHIA, LLC - GEHRIG PAD	Pass	State
2026-06-12	GULFPORT APPALACHIA, LLC - GEHRIG PAD	Pass	State
2026-06-10	GULFPORT APPALACHIA, LLC - SCHUMACHER WELL PAD	Pass	State
2026-06-10	GULFPORT APPALACHIA, LLC - SCHUMACHER WELL PAD	Pass	State
2026-06-10	GULFPORT APPALACHIA, LLC - SCHUMACHER WELL PAD	Pass	State
2026-06-10	GULFPORT APPALACHIA, LLC - MORRIS PAD	Pass	State
2026-06-10	GULFPORT APPALACHIA, LLC - MORRIS PAD	Pass	State
2026-06-10	GULFPORT APPALACHIA, LLC - MORRIS PAD	Pass	State
2026-06-05	ROLLAND PAD 952787	Pass	State
2026-06-05	ROLLAND PAD 952787	Pass	State
2026-06-05	ROLLAND PAD 952787	Pass	State
2026-06-04	BOLEN PAD 952350	Pass	State
2026-06-04	BOLEN PAD 952350	Pass	State
2026-06-04	BOLEN PAD 952350	Pass	State
2026-06-04	ORMET 15 PAD 952728	Pass	State
2026-06-04	ORMET 15 PAD 952728	Pass	State
2026-06-04	ORMET 15 PAD 952728	Pass	State
2026-06-03	ROTH PAD 952790	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 Monroe county, OH, for 2026. It lists 168 stack tests recorded in 2026.