EPA Air · violations by state and year
High-priority air violations in Ohio, 2026
- 202Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity. Every violation below was recorded against a source in Ohio during 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Ohio, 2026
- Cuyahoga County 21
- Lucas County 14
- Hamilton County 13
- Wood County 10
- Ashland County 10
- Franklin County 9
- Butler County 8
- Stark County 7
- Fairfield County 6
- Warren County 5
- Summit County 4
- Lorain County 4
- Crawford County 3
- Mahoning County 3
- Wyandot County 3
- Tuscarawas County 3
- Scioto County 3
- Licking County 3
- Washington County 3
- Pickaway County 3
- Darke County 3
- Williams County 3
- Lake County 3
- Allen County 3
Ohio, other years
High-priority air violations recorded in Ohio, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-09-14 | HOFFMAN ROAD LANDFILL — high-priority violation on file | TOLEDO, Lucas, OH | HPV day-zero determination | State |
| 2026-09-04 | SRC WORLDWIDE, INC. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-09-04 | USALCO FAIRFIELD PLANT, LLC — high-priority violation on file | FAIRFIELD, Butler, OH | Earliest FRV determination | State |
| 2026-09-04 | UNIVERSAL PLASTICS - MIDDLEFIELD — high-priority violation on file | MIDDLEFIELD, Geauga, OH | Earliest FRV determination | State |
| 2026-09-04 | MARBLE ARCH PRODUCTS INC. — high-priority violation on file | FRANKLIN, Warren, OH | Earliest FRV determination | State |
| 2026-09-04 | MAZZ SCRAP, LLC - NORTH YARD — high-priority violation on file | AKRON, Summit, OH | Earliest FRV determination | State |
| 2026-09-04 | LIMESTONE RNG HIGH BTU FACILITY — high-priority violation on file | LOWELLVILLE, Mahoning, OH | Earliest FRV determination | State |
| 2026-09-04 | MANE, INC. — high-priority violation on file | LEBANON, Warren, OH | Earliest FRV determination | State |
| 2026-09-04 | STAHL TRUCK EQUIPMENT COMPANY — high-priority violation on file | WOOSTER, Wayne, OH | Earliest FRV determination | State |
| 2026-09-04 | ROSEBUD DATA CENTER — high-priority violation on file | LISBON, Columbiana, OH | Earliest FRV determination | State |
| 2026-09-04 | CARMEUSE LIME, INC - GRAND RIVER OPERATIONS — high-priority violation on file | GRAND RIVER, Lake, OH | Earliest FRV determination | State |
| 2026-09-04 | DREW FOAM HOLDINGS, LLC — high-priority violation on file | LANCASTER, Fairfield, OH | Earliest FRV determination | State |
| 2026-09-04 | 3 SIGMA LLC PLANT 3 — high-priority violation on file | LANCASTER, Fairfield, OH | Earliest FRV determination | State |
| 2026-09-04 | HONDA ENGINEERING NORTH AMERICA, INC. — high-priority violation on file | MARYSVILLE, Union, OH | Earliest FRV determination | State |
| 2026-09-04 | NATIONAL RESILIENCE, INC. — high-priority violation on file | WEST CHESTER, TOWNSHIP OF, Butler, OH | Earliest FRV determination | State |
| 2026-09-04 | AZEK BUILDING PRODUCTS — high-priority violation on file | WILMINGTON, Clinton, OH | Earliest FRV determination | State |
| 2026-09-04 | CLEVELAND-CLIFFS STEEL CORPORATION — high-priority violation on file | MIDDLETOWN, Butler, OH | Earliest FRV determination | State |
| 2026-09-04 | METALLUS INC. - FAIRCREST STEEL PLANT — high-priority violation on file | CANTON, Stark, OH | Earliest FRV determination | State |
| 2026-09-04 | THE ANDERSONS RENEWABLES LLC - GREENVILLE PLANT — high-priority violation on file | GREENVILLE, Darke, OH | Earliest FRV determination | State |
| 2026-09-04 | PREMIX - HADLOCK COMPOSITES, LLC — high-priority violation on file | GENEVA, Ashtabula, OH | Earliest FRV determination | State |
| 2026-09-04 | MSC WALBRIDGE COATINGS INC — high-priority violation on file | WALBRIDGE, Wood, OH | Earliest FRV determination | State |
| 2026-09-04 | MAUSER-USA — high-priority violation on file | MASON, Warren, OH | Earliest FRV determination | State |
| 2026-09-04 | MARBLE ARCH PRODUCTS INC. — high-priority violation on file | FRANKLIN, Warren, OH | Earliest FRV determination | State |
| 2026-09-04 | VALGROUP — high-priority violation on file | FINDLAY, Hancock, OH | Earliest FRV determination | State |
| 2026-09-04 | PALLET SOLUTIONS — high-priority violation on file | APPLE CREEK, Wayne, OH | Earliest FRV determination | State |
| 2026-09-04 | CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-09-04 | AL-CO PRODUCTS, INC. — high-priority violation on file | LATTY, Paulding, OH | Earliest FRV determination | State |
| 2026-09-04 | CITY OF ST. MARYS POWER PLANT — high-priority violation on file | SAINT MARYS, TOWNSHIP OF, Auglaize, OH | Earliest FRV determination | State |
| 2026-09-04 | JOHNSON WELDED PRODUCTS — high-priority violation on file | URBANA, Champaign, OH | Earliest FRV determination | State |
| 2026-09-04 | HAMILTON TANKS, LLC — high-priority violation on file | COLUMBUS, Franklin, OH | Earliest FRV determination | State |
| 2026-09-04 | MANHEIM OHIO — high-priority violation on file | GROVE CITY, Franklin, OH | Earliest FRV determination | State |
| 2026-09-04 | WORTHINGTON CYLINDER CORPORATION — high-priority violation on file | COLUMBUS, Franklin, OH | Earliest FRV determination | State |
| 2026-09-04 | ILLUMINATE USA LLC — high-priority violation on file | PATASKALA, Licking, OH | Earliest FRV determination | State |
| 2026-09-04 | ROSEBUD DATA CENTER — high-priority violation on file | LISBON, Columbiana, OH | Earliest FRV determination | State |
| 2026-09-04 | GRAPHITE SALES INC — high-priority violation on file | NOVA, Ashland, OH | Earliest FRV determination | State |
| 2026-09-04 | MONDELEZ GLOBAL LLC - TOLEDO FLOUR MILL — high-priority violation on file | TOLEDO, Lucas, OH | Earliest FRV determination | State |
| 2026-09-04 | SIDWELL MATERIALS, INC.-TRI-SON SCREENING PLANT — high-priority violation on file | SAINT CLAIRSVILLE, Belmont, OH | Earliest FRV determination | State |
| 2026-09-04 | POLAR SERVICE CENTER — high-priority violation on file | MARIETTA, Washington, OH | Earliest FRV determination | State |
| 2026-09-04 | DEE SIGN COMPANY — high-priority violation on file | WEST CHESTER, TOWNSHIP OF, Butler, OH | Earliest FRV determination | State |
| 2026-09-04 | HDT EXPEDITIONARY SYSTEMS INC. — high-priority violation on file | CINCINNATI, Clermont, OH | Earliest FRV determination | State |
| 2026-09-04 | VEELO TECHNOLOGIES LLC — high-priority violation on file | CINCINNATI, Hamilton, OH | Earliest FRV determination | State |
| 2026-09-04 | LEGRAND AVD — high-priority violation on file | CINCINNATI, Hamilton, OH | Earliest FRV determination | State |
| 2026-09-04 | MAVERICK MOLDING CO. — high-priority violation on file | CINCINNATI, Hamilton, OH | Earliest FRV determination | State |
| 2026-09-04 | CINCINNATI BULK TERMINALS LLC — high-priority violation on file | CINCINNATI, Hamilton, OH | Earliest FRV determination | State |
| 2026-09-04 | CUSTOM CAST MARBLEWORKS, EVENDALE — high-priority violation on file | CINCINNATI, Hamilton, OH | Earliest FRV determination | State |
| 2026-09-04 | ALCON INDUSTRIES, INC. — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-09-04 | CHEMTRON CORPORATION — high-priority violation on file | BEDFORD, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-09-04 | FIVES NORTH AMERICAN COMBUSTION, INCORPORATED — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-09-04 | ELEMENT MATERIALS TECHNOLOGY CLEVELAND - MIDDLEBURG — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-09-04 | C&D WASTE SOLUTIONS, LLC — high-priority violation on file | CANTON, Stark, OH | Earliest FRV determination | State |
| 2026-09-04 | IRONROCK CAPITAL, INC. — high-priority violation on file | CANTON, Stark, OH | Earliest FRV determination | State |
| 2026-09-04 | NSG GLASS NORTH AMERICA, INC. — high-priority violation on file | LUCKEY, Wood, OH | Earliest FRV determination | State |
| 2026-09-04 | SILER AND SONS LANDSCAPE SUPPLY — high-priority violation on file | AMELIA, Clermont, OH | Earliest FRV determination | State |
| 2026-09-04 | CLEVELAND - SUNOCO LLC — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-09-04 | CSP INNOVATIONS, INC. — high-priority violation on file | NORTH BALTIMORE, Wood, OH | Earliest FRV determination | State |
| 2026-09-04 | HOFFMAN ROAD LANDFILL — high-priority violation on file | TOLEDO, Lucas, OH | Earliest FRV determination | State |
| 2026-09-04 | CSP INNOVATIONS, INC. — high-priority violation on file | CAREY, Wyandot, OH | Earliest FRV determination | State |
| 2026-09-04 | ARCHEM AMERICA, INC. — high-priority violation on file | UPPER SANDUSKY, Wyandot, OH | Earliest FRV determination | State |
| 2026-09-04 | FORD MOTOR COMPANY - OHIO ASSEMBLY PLANT — high-priority violation on file | AVON LAKE, Lorain, OH | Earliest FRV determination | State |
| 2026-09-04 | CLEVELAND-CLIFFS STEEL CORPORATION — high-priority violation on file | MIDDLETOWN, Butler, OH | Earliest FRV determination | State |
| 2026-09-04 | CROWN CORK & SEAL — high-priority violation on file | TOLEDO, Lucas, OH | Earliest FRV determination | State |
| 2026-09-04 | WHIRLPOOL FINDLAY OPERATIONS — high-priority violation on file | FINDLAY, Hancock, OH | Earliest FRV determination | State |
| 2026-09-04 | CONSOLIDATED PACKAGING GROUP — high-priority violation on file | CINCINNATI, Hamilton, OH | Earliest FRV determination | State |
| 2026-09-04 | CASTING SOLUTIONS, LLC — high-priority violation on file | ZANESVILLE, Muskingum, OH | Earliest FRV determination | State |
| 2026-09-04 | UNION TANK CAR COMPANY — high-priority violation on file | MARION, Marion, OH | Earliest FRV determination | State |
| 2026-09-04 | JSW STEEL USA OHIO — high-priority violation on file | MINGO JUNCTION, Jefferson, OH | Earliest FRV determination | State |
| 2026-09-04 | VITATOE INDUSTRIES, INC. — high-priority violation on file | CHILLICOTHE, Ross, OH | Earliest FRV determination | State |
| 2026-09-04 | ALLIED MOULDED PRODUCTS, INC. — high-priority violation on file | BRYAN, Williams, OH | Earliest FRV determination | State |
| 2026-09-04 | SHELLY MATERIALS, INC. - EAST FULTONHAM QUARRY — high-priority violation on file | EAST FULTONHAM, Muskingum, OH | Earliest FRV determination | State |
| 2026-09-04 | SRT SALES AND SERVICE — high-priority violation on file | CANTON, Stark, OH | Earliest FRV determination | State |
| 2026-08-09 | POET BIOREFINING - LEIPSIC — high-priority violation on file | LEIPSIC, Putnam, OH | HPV day-zero determination | State |
| 2026-07-07 | BRAUN INDUSTRIES, INC. — high-priority violation on file | VAN WERT, Van Wert, OH | HPV day-zero determination | State |
| 2026-06-24 | CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-06-24 | OHIO REFINING COMPANY LLC — high-priority violation on file | OREGON, Lucas, OH | Earliest FRV determination | State |
| 2026-06-24 | OHIO REFINING COMPANY LLC — high-priority violation on file | OREGON, Lucas, OH | Earliest FRV determination | State |
| 2026-06-24 | OHIO REFINING COMPANY LLC — high-priority violation on file | OREGON, Lucas, OH | Earliest FRV determination | State |
| 2026-06-24 | GRAPHITE SALES INC — high-priority violation on file | NOVA, Ashland, OH | Earliest FRV determination | State |
| 2026-06-24 | KOKOSING MATERIALS INC - PLANT 505 — high-priority violation on file | FREDERICKTOWN, Knox, OH | Earliest FRV determination | State |
| 2026-06-24 | GRAPHITE SALES INC — high-priority violation on file | NOVA, Ashland, OH | Earliest FRV determination | State |
| 2026-06-24 | CROWN CORK & SEAL — high-priority violation on file | TOLEDO, Lucas, OH | Earliest FRV determination | State |
| 2026-06-24 | GRAPHITE SALES INC — high-priority violation on file | NOVA, Ashland, OH | Earliest FRV determination | State |
| 2026-06-24 | ALLIED CORP. PORTABLE GENERATOR 21.1261 — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-06-24 | ALLIED PLANT 70 — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-06-24 | ALLIED CORPORATION PLANT #5 — high-priority violation on file | PIKETON, Pike, OH | Earliest FRV determination | State |
| 2026-06-24 | GRAPHITE SALES INC — high-priority violation on file | NOVA, Ashland, OH | Earliest FRV determination | State |
| 2026-06-24 | FEX, L.L.C. (PORTABLE) — high-priority violation on file | MINGO JUNCTION, Jefferson, OH | Earliest FRV determination | State |
| 2026-06-24 | BASF CORPORATION — high-priority violation on file | GREENVILLE, Darke, OH | Earliest FRV determination | State |
| 2026-06-24 | SCHLABACH WOOD DESIGN — high-priority violation on file | BALTIC, Coshocton, OH | Earliest FRV determination | State |
| 2026-06-24 | LUCAS COMPRESSOR STATION — high-priority violation on file | MONROE, TOWNSHIP OF, Richland, OH | Earliest FRV determination | State |
| 2026-06-24 | OHIO REFINING COMPANY LLC — high-priority violation on file | OREGON, Lucas, OH | Earliest FRV determination | State |
| 2026-06-24 | GRAPHITE SALES INC — high-priority violation on file | NOVA, Ashland, OH | Earliest FRV determination | State |
| 2026-06-24 | GRAPHITE SALES INC — high-priority violation on file | NOVA, Ashland, OH | Earliest FRV determination | State |
| 2026-06-24 | MARION CORRECTIONAL INSTITUTION — high-priority violation on file | MARION, Marion, OH | Earliest FRV determination | State |
| 2026-06-24 | MAR ZANE PLANT NO 30 — high-priority violation on file | HAYDENVILLE, Hocking, OH | Earliest FRV determination | State |
| 2026-06-24 | WARWICK PRODUCTS — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-06-24 | THE WORTHINGTON STEEL COMPANY — high-priority violation on file | CUYAHOGA HEIGHTS, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-06-24 | VESUVIUS USA CORPORATION - CD — high-priority violation on file | BROOK PARK, Cuyahoga, OH | Earliest FRV determination | State |
| 2026-06-24 | SHELLY MATERIALS PLANT #80 — high-priority violation on file | BELLE CENTER, Logan, OH | Earliest FRV determination | State |
| 2026-06-24 | GRAPHITE SALES INC — high-priority violation on file | NOVA, Ashland, OH | Earliest FRV determination | State |
| 2026-06-24 | GRAPHITE SALES INC — high-priority violation on file | NOVA, Ashland, OH | Earliest FRV determination | State |
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Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.