EPA-regulated facilities in Ozaukee County, WI

There are 1,030 EPA-regulated facilities inside Ozaukee County, Wisconsin. The most common kinds are hazardous waste (479), drinking water systems (399), water discharge (166). 3 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 32 have a violation on record. Penalties over the last five years total $107k across 1 site.

Open the map of Ozaukee County

1,030facilities in the county
3in significant noncompliance
32with a violation on record
$107kin penalties, last 5 years

By category

CategoryFacilities
Hazardous waste479
Treatment, storage or disposal1
Large quantity generators9
Small quantity generators237
Transporters2
Chemical (RMP/TRI)63
Superfund11
Air emissions54
Major sources2
Synthetic minor sources2
Minor sources3
Water discharge166
Major permits5
Minor permits127
Drinking water systems399
Greenhouse gas reporters2
Data centers1

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.

Largest penalties

Penalties assessed over the last five years.

Superfund sites

Data centers

Towns in Ozaukee 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.