EPA-regulated facilities in Marathon County, WI

There are 1,305 EPA-regulated facilities inside Marathon County, Wisconsin. The most common kinds are hazardous waste (680), water discharge (339), drinking water systems (256). 8 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 47 have a violation on record. Penalties over the last five years total $5.8M across 3 sites.

Open the map of Marathon County

1,305facilities in the county

8in significant noncompliance

47with a violation on record

$5.8Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	680
Large quantity generators	10
Small quantity generators	361
Transporters	7
Chemical (RMP/TRI)	79
Superfund	9
Air emissions	120
Major sources	17
Synthetic minor sources	11
Minor sources	4
Water discharge	339
Major permits	6
Minor permits	294
Drinking water systems	256
Greenhouse gas reporters	6
Recycling centers	3

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.

AHLSTROM MOSINEE LLC 100 MAIN ST, MOSINEE, WI, 54455 Significant noncompliance in 2 programs · $150k in penalties
LINETEC ANODIZE 7500 STEWART AVE, WAUSAU, WI, 54401 Significant noncompliance
WE ENERGIES ROTHSCHILD BIOMASS COGENERATION FACILITY 210 N GRAND AVE, ROTHSCHILD, WI, 54474 Significant noncompliance
3M CO - WAUSAU DOWNTOWN 144 ROSECRANS ST, WAUSAU, WI, 54401 Significant noncompliance
3M WAUSAU - GREYSTONE PLANT 4099 N 4TH AVE, WAUSAU, WI, 54402 Significant noncompliance
MARTH WOOD SHAVINGS SUPPLY INC 6752 STATE ROAD 107, MARATHON, WI, 54448 Significant noncompliance
MULLINS CHEESE FACTORY-300 598 SEAGULL DR, MOSINEE, WI, 54455 Significant noncompliance
SPENCER WATERWORKS-TQ446 610 EAST DEPOT STREET, SPENCER, WI, 54479 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE, INC. - WAUSAU 7000 STEWART AVE, WAUSAU, WI, 54401 $5.3M in penalties
CRYSTAL FINISHING SYSTEMS INC 2610 ROSS AVE, SCHOFIELD, WI, 54476 $350k in penalties

Superfund sites

MURRAY MACHINERY INCORPORATED HIGHWAY 29, WAUSAU INDUSTRIAL PARK, WAUSAU, WI, 54401
RIB MOUNTAIN MUNICIPAL WELL 224505 LILAC AVE, RIB MOUNTAIN, WI, 54401
UNDEVELOPED ROSEMURGY PROPERTY 218 S 4TH ST, WAUSAU, WI, 54403
WAUSAU GROUND WATER CONTAMINATION S24 & 25 T29N R7E, WAUSAU, WI, 54401
MID-STATE DISPOSAL, INC. LANDFILL APPROX. 1742-1594 BIG RAPIDS ROAD, CLEVELAND TOWNSHIP, WI, 54484
ABBOTSFORD PCE INVESTIGATION CITY HALL, ABBOTSFORD, WI, 54405
UNITY AUTO MART 102 NORTH FRONT ST., UNITY, WI, 54488
SPENCER DRUM - STREBE PROPERTY 408 E WILLOW DR, SPENCER, WI, 54479
SPICKLER LANDFILL ROUTE 2 (ECKES ROAD), SPENCER, WI, 54479

Towns in Marathon 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.