Velarion Records

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EPA Air · stack tests by state, industry and year

Petroleum and coal products manufacturing (NAICS 3241): stack tests in Ohio, 2026

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2026 at a Ohio source whose primary industry code is NAICS 3241. A facility filing more than one industry code is counted under the first one on its record.

Petroleum and coal products manufacturing (NAICS 3241) in Ohio, other years

Other industries in Ohio, 2026

Air-emissions stack tests recorded in Ohio, 2026

DateFacilityWhereKindAgency
2026-07-08MAR-ZANE, INC. PLANT #21MANSFIELD, Richland, OHPassState
2026-05-28MILLER-MASON PAVING CO., INC.HILLSBORO, Highland, OHPassState
2026-05-28MAR ZANE PLANT NO 3GNADENHUTTEN, Tuscarawas, OHPassState
2026-04-23HAVERHILL COKE COMPANY LLC — high-priority violation on fileFRANKLIN FURNACE, Scioto, OHPassState
2026-04-20MIDDLETOWN COKE COMPANY, LLC — high-priority violation on fileMIDDLETOWN, Butler, OHPassState

Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.