EPA-regulated facilities in Sauk County, WI

There are 628 EPA-regulated facilities inside Sauk County, Wisconsin. The most common kinds are hazardous waste (253), drinking water systems (186), water discharge (166). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 25 have a violation on record. Penalties over the last five years total $5.3M across 1 site.

Open the map of Sauk County

628facilities in the county
2in significant noncompliance
25with a violation on record
$5.3Min penalties, last 5 years

By category

CategoryFacilities
Hazardous waste253
Treatment, storage or disposal1
Large quantity generators5
Small quantity generators106
Chemical (RMP/TRI)33
Superfund5
Air emissions43
Major sources3
Synthetic minor sources4
Water discharge166
Major permits2
Minor permits147
Drinking water systems186
Greenhouse gas reporters1
Scrap yards1
Recycling 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

Towns in Sauk 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.