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DeutschAddress report

States / Pennsylvania

Delaware County, PA

The federal environmental record for Delaware County (population 575,182): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.

6

Superfund NPL sites

18

federal cleanup sites

2

PFAS-detecting water systems

18

TRI facilities

113

open tank releases

Superfund NPL sites

SiteCityStatusListed
Austin Avenue Radiation SiteDelaware Countydeleted10/14/1992
Havertown PCPHaverfordon the NPL09/08/1983
Lansdowne Radiation SiteLansdownedeleted09/16/1985
Lower Darby Creek AreaDarby Townshipon the NPL06/14/2001
Metro Container CorporationTraineron the NPL03/15/2012
Wade (ABM)Chesterdeleted09/08/1983

Drinking water: PFAS testing

Public water systems serving Delaware with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.

SystemHighest resultsReading
CHESTER WATER AUTHORITY

PA1230004

PFOA: 5.1 ng/L

PFBS: 4.5 ng/L

PFPeA: 4.1 ng/L

above final limit
SUEZ WATER PA BETHEL

PA1230012

PFBA: 29.6 ng/L

PFHxA: 24.9 ng/L

PFPeA: 24.2 ng/L

above final limit

On a system with detections? Testing and treatment options

Facilities reporting toxic releases (2024)

18 facilities in Delaware filed TRI reports for 2024, totalling 283k lb released.

FacilityCityTop chemicalsTotal released
MONROE ENERGY LLC-TRAINER REFINERYTRAINERXylene (mixed isomers), Nitrate compounds (water dissociable; reportable only when in aqueous solution)247k lb
BRASKEM AMERICA INCMARCUS HOOKPropylene23k lb
EVONIK CORPCHESTERSulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia5k lb
ENTEGRIS INC.CHESTERToluene, Methanol3k lb
ESSCHEM INC.LINWOODMethyl methacrylate3k lb
SUNOCO LLC-RACE FUELSMARCUS HOOKToluene, Lead compounds2k lb
BULLEN COSFOLCROFTNonylphenol Ethoxylates, Certain glycol ethers768 lb
CROWN FOUNDRY CO WEST PHILADELPHIA BRONZECHESTERCopper, Nickel28 lb
DAVIS VISIONNEWTOWN SQUARELead18 lb
ESSTECH INC.ESSINGTON-0 lb
EDDYSTONE GENERATING STATIONEDDYSTONEPolycyclic aromatic compounds0 lb
SRM - SHARON HILLSHARON HILLLead0 lb
FISHER TANK COCHESTER-0 lb
PYROMET LLCASTON-0 lb
BRYN HILL INDUSTRIESYEADON-0 lb
THE BOEING CO DEFENSE SPACE & SECURITY ROTORCRAFT PRRIDLEY PARK-0 lb
PENN PANEL & BOX COCOLLINGDALE-0 lb
PENNSYLVANIA MACHINE WORKS LLCASTON-0 lb

Underground fuel tanks

EPA's UST Finder records 873 tank facilities in Delaware: 613 tanks in service and 2,182 closed. 684 fuel releases are on record, of which 113 remain open. Open releases are cleanups that have not reached "no further action".

Radon

EPA maps Delaware as Zone 1, the highest predicted indoor radon levels (over 4 pCi/L average). Radon and air quality are covered in depth on lung.com.

The record for one specific address

County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.

Get the report - $39

All federal cleanup sites on file

The wider Superfund enterprise inventory (SEMS) for Delaware, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.

  • 2020 PRB READINESS EXERCISELINWOOD
  • AUSTIN AVENUE RADIATION SITELANSDOWNE
  • CHESTER CITY ORPHAN DRUMSCHESTER
  • DELAWARE COUNTY SEWAGE TREATMENT PLANTDARBY TWP
  • EAST TENTH STREETMARCUS HOOK
  • EDDYSTONE AVE TRAILER SITEWOODLYN
  • GLEN MILLS RESIDENTIAL MERCURYGLEN MILLS
  • HAVERTOWN PCPHAVERFORD
  • JOHN HEINTZ NATIONAL WILDLIFEFOLCROFT
  • LANSDOWNE RADIATION SITELANSDOWNE
  • LOWER DARBY CREEK AREADARBY TWP
  • METRO CONTAINER CORPORATIONTRAINER
  • MONROE ENERGY LLC/TRAINERTRAINER
  • NAYLORS RUN FISH KILLDREXEL HILL
  • OIL TANK LINES. INC.DARBY
  • SHARON HILL HGSHARON HILL
  • SPRINGFIELD HGSPRINGFIELD
  • WADE (ABM)CHESTER