EPA-regulated facilities in Chester County, PA

There are 3,707 EPA-regulated facilities inside Chester County, Pennsylvania. The most common kinds are water discharge (1,628), hazardous waste (1,487), drinking water systems (467). 41 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 167 have a violation on record. Penalties over the last five years total $6.3M across 29 sites.

Open the map of Chester County

3,707facilities in the county

41in significant noncompliance

167with a violation on record

$6.3Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	1,487
Treatment, storage or disposal	2
Large quantity generators	29
Small quantity generators	710
Transporters	27
Chemical (RMP/TRI)	153
Superfund	19
Air emissions	446
Major sources	16
Synthetic minor sources	55
Minor sources	218
Water discharge	1,628
Major permits	11
Minor permits	1,270
Drinking water systems	467
Greenhouse gas reporters	10
Data centers	1
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.

TO-JO MUSHROOMS FACILITY 974 PENN GREEN RD, AVONDALE, PA, 19311 Significant noncompliance · $144k in penalties
DOWNINGTOWN REGIONAL WATER POLLUTION CONT. CENTER 550 S. BRANDYWINE AVE., DOWNINGTOWN, PA, 19335 Significant noncompliance · $51k in penalties
MAHONEY ENVIRONMENTAL PHILADELPHIA 8 UNION STREET, MODENA, PA, 19358 Significant noncompliance
SOUTH COATESVILLE STP NORTH SIDE LOWER GAP RD, COATESVILLE, PA, 19320 Significant noncompliance
BROAD RUN STP 1201 SAW MILL RD, DOWNINGTOWN, PA, 19335 Significant noncompliance
KEATS GLEN STP 100 BOND DR, DOWNINGTOWN, PA, 19335 Significant noncompliance
TURKEY HILL MINIT MARKET STP COATESVILLE, COATESVILLE, PA, 19320 Significant noncompliance
APPLECROSS WWTP (AKA OVERLOOK ROAD FARM WWTP) 101 BOLERO DRIVE, DOWNINGTOWN, PA, 19335 Significant noncompliance
ARCELORMITTAL PLATE LLC - COATESVILLE FACILITY 50 S 1ST AVE, COATESVILLE, PA, 19320 Significant noncompliance
SPRING RUN ESTATES STP OLD TELEGRAPH RD, COATESVILLE, PA, 19320 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SVC WEST CHESTER FAC 1200 WARD AVENUE, WEST CHESTER, PA, 19380 $5.3M in penalties
FLOWERS BAKING CO/OXFORD PLT 700 LINCOLN ST, OXFORD, PA, 19363 $153k in penalties
ACTION MANUFACTURING CO 500 BAILEY CROSS RD, ATGLEN, PA, 19310 $126k in penalties
TEL HAI RETIREMENT COMMUNITY STP 1200 TEL HAI CIRCLE, HONEY BROOK, PA, 19344 $71k in penalties
ANRO, INC. 931 S MATLACK ST, WEST CHESTER, PA, 19382 $60k in penalties

Superfund sites

STRASBURG LANDFILL STRASBURG ROAD, NEWLIN TOWNSHIP, PA, 19320
MODENA YARD CREEK RD, MODENA, PA, 19358
MODENA FLOOD RELEASE 22 MEREDITH CT, MODENA, PA, 19358
DOWNINGTOWN PICKLEBALL SEALANT DUMPING 945 EAST LANCASTER AVENUE, DOWNINGTOWN, PA, 19335
KENNETT SQUARE JUNKYARD OFF RTE 1, KENNETT SQUARE, PA, 19348
OLD WILMINGTON ROAD SITE - AKA - OLD WILM. RD. GRNDWTR. CONTAMTN OLD WILMINGTON ROAD & PARKESBURG ROAD, WEST CALN TOWNSHIP, PA, 19320
OLD WILMINGTON ROAD GW CONTAMINATION OLD WILMINGTON ROAD, WEST CALN TOWNSHIP, PA, 19320
A.I.W. FRANK/MID-COUNTY MUSTANG INT RTE 202 & RTE 30, EXTON, PA, 19341
BLOSENSKI LANDFILL ROUTE 340, WEST CALN TOWNSHIP, PA, 19376
WILLIAM DICK LAGOONS TELEGRAPH ROAD, WAGONTOWN, PA, 19376

Data centers

THE DATA CENTERS 13 S. BACTON HILL ROAD, EAST WHITELAND, TOWNSHIP OF, PA, 19335

Towns in Chester 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.