EPA-regulated facilities in Miami County, OH

There are 725 EPA-regulated facilities inside Miami County, Ohio. The most common kinds are hazardous waste (365), air emissions (176), water discharge (143). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 29 have a violation on record. Penalties over the last five years total $5.3M across 2 sites.

Open the map of Miami County

725facilities in the county

2in significant noncompliance

29with a violation on record

$5.3Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	365
Treatment, storage or disposal	1
Large quantity generators	12
Small quantity generators	144
Transporters	2
Chemical (RMP/TRI)	53
Superfund	10
Air emissions	176
Major sources	4
Synthetic minor sources	22
Minor sources	113
Water discharge	143
Major permits	3
Minor permits	34
Drinking water systems	142
Data centers	1

A facility enrolled in several programs counts once in the total and once in each of its categories.

In significant noncompliance

The EPA's designation for its most serious or persistent violations, as of the latest data.

LE-O-NA FALLS MHP 8112 RTE 55 W, LUDLOW FALLS, OH, 45339 Significant noncompliance
BRADFORD WASTEWATER TREATMENT PLANT 11750 KLINGER ROAD, BRADFORD, OH, 45308 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE INC 8460 INDUSTRIAL PARK DRIVE, PIQUA, OH, 45356 $5.3M in penalties
CONCRETE SEALANTS, INC 9325 STATE RTE 201, TIPP CITY, OH, 45371 $4k in penalties

Superfund sites

HOBART BROTHERS AKA LAGOON BETWEEN 439 & 507 NORTH ELM STREET, TROY, OH, 45373
WEST TROY CONTAMINATED AQUIFER ADAMS STREET AND CR 25A, TROY, OH, 45373
MIAMI COUNTY INCINERATOR 2200 NORTH COUNTY ROAD 25A, TROY, OH, 45373
EAST TROY CONTAMINATED AQUIFER EAST TROY ALONG WEST BANK OF MIAMI RIVER, TROY, OH, 45373
DELTECH POLYMERS 1250 SOUTH UNION STREET, TROY, OH, 45374-4118
TROY OHIO MERCURY RESPONSE 1245 FAIRWAY DRIVE, TROY, OH, 45373-4403
UNITED SCRAP LEAD CO., INC. 1425 S DIXIE HWY PO BOX 25, TROY, OH, 45373
TIPP CITY NOVELTY SITE 222 NORTH 6TH STREET, TIPP CITY, OH, 45271
PIQUA HOSPITAL SITE 624 PARK AVENUE, PIQUA, OH, 45356-2038
GARLAND ROAD LANDFILL GARLAND ROAD STILLWATER RIVER, W MILTON, OH, 45383

Data centers

J5 LLC 2675 FARRINGTON RD, PIQUA, OH, 45356

Towns in Miami County

Bordering counties

Reading these numbers

These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. The Data page explains where each record comes from and how it can mislead.