EPA-regulated facilities near Portage, WI

There are 137 EPA-regulated facilities within 5 miles of Portage, Wisconsin. The most common kinds are hazardous waste (86), water discharge (36), air emissions (23). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 4 have a violation on record.

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137facilities within 5 miles

2in significant noncompliance

4with a violation on record

$0in penalties, last 5 years

By category

Category	Facilities
Hazardous waste	86
Small quantity generators	38
Chemical (RMP/TRI)	13
Air emissions	23
Major sources	2
Synthetic minor sources	2
Minor sources	1
Water discharge	36
Major permits	1
Minor permits	30
Drinking water systems	11
Greenhouse gas reporters	2

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.

PORTAGE WASTEWATER TREATMENT FACILITY 309 W WASHINGTON ST, PORTAGE, WI, 53901 · 1.1 mi Significant noncompliance
PETRO TRAVEL PLAZA #403 N5800 KINNEY ROAD SEQ NWQ SEC 25 T12N R8E CALEDONI, PORTAGE, WI, 53901 · 4.6 mi Significant noncompliance

County

Columbia County

Nearby towns

Baraboo 15 mi
DeForest 23 mi
Waunakee 25 mi
Reedsburg 27 mi
Sun Prairie 28 mi
Middleton 31 mi
Madison 32 mi
Beaver Dam 32 mi

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. Distances are from the center of Portage as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.