EPA-regulated facilities near Hockessin, DE

There are 346 EPA-regulated facilities within 5 miles of Hockessin, Delaware. The most common kinds are hazardous waste (190), water discharge (122), air emissions (39). 3 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 9 have a violation on record. Penalties over the last five years total $35k across 3 sites.

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346facilities within 5 miles

3in significant noncompliance

9with a violation on record

$35kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	190
Treatment, storage or disposal	1
Large quantity generators	2
Small quantity generators	103
Chemical (RMP/TRI)	24
Superfund	6
Air emissions	39
Major sources	3
Synthetic minor sources	2
Minor sources	21
Water discharge	122
Major permits	1
Minor permits	57
Drinking water systems	30
Greenhouse gas reporters	1

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.

SUNLAKE TERRACE WATER SYSTEMS-SUNLAKE TERRACE EST. WATER PLT 251 LITTLE FALLS DR, WILMINGTON, DE, 19808 · 3.6 mi Significant noncompliance
KENNETT SQUARE BORO WWTP 660 WEST SOUTH ST, KENNETT SQUARE, PA, 19348 · 4.3 mi Significant noncompliance
DELAWARE VALLEY CONCRETE KENNETT SQUARE FAC 3 WAYS LN, KENNETT SQUARE, PA, 19348 · 4.3 mi Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

BLITTERSDORFS USED AUTO PARTS TOUGHKENAMON FAC 1019 NEWARK RD, TOUGHKENAMON, PA, 19374 · 4.9 mi $20k in penalties
AGILENT TECHNOILOGIES 2850 CENTERVILLE ROAD, WILMINGTON, DE, 19808 · 3.4 mi $10k in penalties
CHESTNUT RUN INNOVATION & SCIENCE PARK (CRISP) 974 CENTRE ROAD, WILMINGTON, DE, 19805 · 4.3 mi $5k in penalties

Superfund sites

LEAD CABOOSE NEAR 728 YORKLYN RD, HOCKESSIN, DE, 19707 · 0.7 mi
HOCKESSIN GROUNDWATER OLD LANCASTER PIKE AT RAILROAD CROSSING, HOCKESSIN, DE, 19707 · 0.9 mi
NVF COMPANY INC - YORKLYN FACILITY 1166 YORKLYN ROAD, YORKLYN, DE, 19736 · 1.6 mi
ANY GARMENT CLEANERS #106 3624 KIRKWOOD HWY, WILMINGTON, DE, 19808 · 4.1 mi
LIBERTY CENTER 3616 KIRKWOOD HWY, WILMINGTON, DE, 19808 · 4.2 mi
NEWPORT DRUM SITE MARYLAND AVE & KRAMINSI RD, NEWPORT, DE, 19804 · 4.4 mi

County

New Castle County

Nearby towns

Pike Creek Valley 4 mi
Brookside 8 mi
Newark 8 mi
Wilmington 9 mi
Bear 11 mi
West Chester, PA 13 mi
Glasgow 13 mi
Pennsville, NJ 13 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 Hockessin as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.