EPA-regulated facilities in Milwaukee County, WI

There are 5,522 EPA-regulated facilities inside Milwaukee County, Wisconsin. The most common kinds are hazardous waste (4,568), water discharge (806), chemical (rmp/tri) (412). 11 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 $20M across 10 sites.

Open the map of Milwaukee County

5,522facilities in the county

11in significant noncompliance

47with a violation on record

$20Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	4,568
Treatment, storage or disposal	3
Large quantity generators	62
Small quantity generators	2,059
Transporters	48
Chemical (RMP/TRI)	412
Superfund	49
Air emissions	395
Major sources	34
Synthetic minor sources	35
Minor sources	43
Water discharge	806
Major permits	4
Minor permits	454
Drinking water systems	180
Greenhouse gas reporters	16
Data centers	4
Scrap yards	7
Recycling centers	14

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.

CLCM OAK CREEK 8570 S CHICAGO RD, OAK CREEK, WI, 53154 Significant noncompliance in 2 programs · $3.3M in penalties
CLCM ST FRANCIS 3950 S PENNSYLVANIA AVE, SAINT FRANCIS, WI, 53235 Significant noncompliance · $1.8M in penalties
CLCM CORNELL STREET 2300 W CORNELL ST, MILWAUKEE, WI, 53209 Significant noncompliance · $1.7M in penalties
CLCM ST FRANCIS 3950 S PENNSYLVANIA AVE, SAINT FRANCIS, WI, 53235 Significant noncompliance · $1.6M in penalties
MID-AMERICA STEEL DRUM CO INC 3950 S PENNSYLVANIA AVE, SAINT FRANCIS, WI, 53235 Significant noncompliance
OAK CREEK POWER PLANT 4801 E. ELM ROAD, OAK CREEK, WI, 53154 Significant noncompliance
PPG INDUSTRIES INC - OAK CREEK FACILITY 10800 S 13TH ST, OAK CREEK, WI, 53154 Significant noncompliance
AMERICA'S BEST QUALITY COATINGS CORP 1602 S FIRST ST, MILWAUKEE, WI, 53204 Significant noncompliance
MALTEUROP NORTH AMERICA INC 3830 W GRANT ST, MILWAUKEE, WI, 53215 Significant noncompliance
MILWAUKEE METRO SEW DIST COMBI 250 W SEEBOTH ST, MILWAUKEE, WI, 53204 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE, INC. - OAK CREEK 6800 S 6TH ST, OAK CREEK, WI, 53154 $5.3M in penalties
UNITED PARCEL SERVICE INC - MILWAUKEE GATEWAY 351 AIR CARGO WAY, MILWAUKEE, WI, 53207 $5.3M in penalties
TFORCE FREIGHT - MILWAUKEE 4924 S 13TH ST, MILWAUKEE, WI, 53221 $860k in penalties
TRADEBE TREATMENT & RECYCLING OF WI 5611 W HEMLOCK ST, MILWAUKEE, WI, 53223 $20k in penalties
KINDER MORGAN MILWAUKEE BULK TERMINAL 1900 S HARBOR DR, MILWAUKEE, WI, 53207 $11k in penalties

Superfund sites

CATERPILLAR GLOBAL MINING 1100 MILWAUKEE AVE, SOUTH MILWAUKEE, WI, 53172
NORTHWESTERN BARREL NW 1/4 SEC13 T3N R22E, SOUTH MILWAUKEE, WI, 53172
LADISH DRAINAGE CHANNEL 3445 EAST GRANGE AVENUE, CUDAHY, WI, 53110
UNION PACIFIC TRAIN DERAILMENT/ACID SPILL NICHOLSON ROAD, OAK CREEK, WI, 53154
U.S. AIR FORCE GEN. MITCHELL ARS 300 E COLLEGE AVE, MILWAUKEE, WI, 53207
BOERKE 5TH & RYAN ROAD, SW QUARTER SEC 24, T5N, OAK CREEK, WI, 53154
MANKE DUMP SW 1/4 NW 1/4 SEC36 T6N R22E, CUDAHY, WI, 53110
LAKE DISPOSAL 13TH & COLLEGE, OAK CREEK, WI, 53154
SOLAR PAINTS VARNISH, INCORPORATED 5375 SOUTH 9TH STREET, MILWAUKEE, WI, 53221
ST FRANCIS AUTO WRECKERS INC 4043 S PENNSYLVANIA AVE, ST FRANCIS, WI, 53235

Data centers

AMERITECH HOWELL DATA CENTER 7737 S HOWELL AVE, OAK CREEK, WI, 53154
Expedient Milwaukee 4777 West Ironwood Drive, Franklin
TierPoint Milwaukee 3701A West Burnham Street, Milwaukee
Data Holdings Data Center 3135 West Highland Boulevard, Milwaukee

Towns in Milwaukee 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.