EPA-regulated facilities in Ottawa County, OH

There are 386 EPA-regulated facilities inside Ottawa County, Ohio. The most common kinds are hazardous waste (146), water discharge (123), drinking water systems (103). 4 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 31 have a violation on record. Penalties over the last five years total $14k across 1 site.

Open the map of Ottawa County

386facilities in the county

4in significant noncompliance

31with a violation on record

$14kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	146
Treatment, storage or disposal	1
Small quantity generators	45
Chemical (RMP/TRI)	12
Superfund	2
Air emissions	43
Major sources	5
Synthetic minor sources	5
Minor sources	18
Water discharge	123
Major permits	4
Minor permits	57
Drinking water systems	103
Greenhouse gas reporters	4
Scrap yards	7
Recycling 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.

THE RESORT AT ERIE LANDINGS 4495 DARR HOPPIFINGER RD, PORT CLINTON, OH, 43452 Significant noncompliance
OAK HARBOR WWTP 355 E WATER ST, OAK HARBOR, OH, 43449 Significant noncompliance
INLAND MARINA AND MHP DBA MAGEE EAST MARINA 10655 W STATE RTE 2, OAK HARBOR, OH, 43619 Significant noncompliance
GREEN VALLEY MOBILE HOME PARK 1795 ELLISTON-TROWBRIDGE RD, ELMORE, OH, 43416 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

MATERION BRUSH INC 14710 W PORTAGE RIVER SOUTH RD, ELMORE, OH, 43416 $14k in penalties

Superfund sites

STANDARD PRODS CO 215 MAPLE ST, PORT CLINTON, OH, 43452
OAK HARBOR FISH KILL 14000 W STATE ROUTE 2, OAK HARBOR, OH, 43449-9485

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.