EPA-regulated facilities in Delaware County, PA

There are 2,612 EPA-regulated facilities inside Delaware County, Pennsylvania. The most common kinds are hazardous waste (1,365), water discharge (1,038), air emissions (389). 19 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 83 have a violation on record. Penalties over the last five years total $9.4M across 41 sites.

Open the map of Delaware County

2,612facilities in the county

19in significant noncompliance

83with a violation on record

$9.4Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	1,365
Treatment, storage or disposal	1
Large quantity generators	21
Small quantity generators	589
Transporters	22
Chemical (RMP/TRI)	98
Superfund	20
Air emissions	389
Major sources	26
Synthetic minor sources	28
Minor sources	238
Water discharge	1,038
Major permits	8
Minor permits	671
Drinking water systems	75
Greenhouse gas reporters	10
Scrap yards	3
Recycling centers	6

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.

MONROE ENERGY, LLC - TRAINER REFINERY 4101 POST ROAD, TRAINER, PA, 19061 Significant noncompliance · $86k in penalties
REFRESCO BEVERAGES IWTP CONCHESTER AND ALDAN AVENUE, CONCORDVILLE, PA, 19331 Significant noncompliance · $44k in penalties
KIMBERLY-CLARK PENNSYLVANIA L LC FRONT STREET & AVENUE OF THE STATES, CHESTER, PA, 19013 Significant noncompliance · $13k in penalties
PECO - EDDYSTONE GENERATING STATION NO. 1 INDUSRTIAL HIGHWAY, EDDYSTONE, PA, 19022 Significant noncompliance · $9k in penalties
A JON CONST SPRINGFIELD PLT 719 OLD MARPLE RD, SPRINGFIELD, PA, 19064 Significant noncompliance
VALLEY BROOK HOMEOWNERS ASSN STP 265 BISHOPS DR, CHESTER HEIGHTS, PA, 19017 Significant noncompliance
J.J. CLARK FORKLIFT FACILITY 31 MOUNT PLEASANT ROAD, ASTON, PA, 19014 Significant noncompliance
ROCKTENN ASTON FACILITY 100 MCDONALD BLVD, ASTON, PA, 19014 Significant noncompliance
MIPC LLC / CHELSEA TANK FARM 510 CHERRYTREE RD, ASTON, PA, 19014 Significant noncompliance
MARCUS HOOK TANK FARM 2 7 COMMERCE DR, ASTON, PA, 19014 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SVC INC/PHILA AIR HUB 1 HOG ISLAND RD, PHILADELPHIA, PA, 19153 $5.3M in penalties
ALLOY SURFACES ASTON PLT 121 NORTH COMMERCE DRIVE, CHESTER, PA, 19014 $1.6M in penalties
ENERGY TRANSFER MARCUS HOOK TERMINAL 100 GREEN STREET, MARCUS HOOK, PA, 19061 $767k in penalties
ABF FREIGHT SYS INC 2704 MARKET ST, ASTON, PA, 19014 $535k in penalties
COVANTA DELAWARE VALLEY LP - DELAWARE VALLEY RES REC 10 HIGHLAND AVE, CHESTER, PA, 19013 $271k in penalties

Superfund sites

FRONT STREET TANKER FRONT AND WARD STREETS, CHESTER, PA, 19015
SPRINGFIELD HG N/A, SPRINGFIELD, PA, 19064
CHESTER CITY ORPHAN DRUMS DRIVEWAY BEHIND 20TH STREET, CHESTER, PA, 19013
CHEW RECREATION CENTER 18TH & WASHINGTON AVE, PHILADELPHIA, PA, 19146
GLEN MILLS RESIDENTIAL MERCURY GRIST MILL RD, GLEN MILLS, PA, 19342
EDDYSTONE AVE TRAILER SITE 650 EDDYSTONE AVE, WOODLYN, PA, 19094
WADE (ABM) 1 FLOWER STREET, CHESTER, PA, 19013
JOHN HEINTZ NATIONAL WILDLIFE OFF DARBY CREEK, FOLCROFT, PA, 19032
MONROE ENERGY LLC/TRAINER 4101 POST RD, TRAINER, PA, 19061
HAVERTOWN PCP EAGLE ROAD RC DRAWER F, HAVERFORD, PA, 19083

Towns in Delaware 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.