Pollution in Chester County, Pennsylvania

Chester County contains 783 EPA-regulated facilities, 27 of which are currently flagged for significant noncompliance. The county also hosts 9 Superfund sites and 36 TRI chemical reporters. EPA has assessed $6.2M in lifetime penalties and TRI reporters disclosed roughly 136.6k lb of on-site releases. That facility count is well above the Pennsylvania state average of 222 per county.

Superfund9NPL sites
TRI Facilities36reporters
EPA Facilities783regulated
Sig. Violators27current SNC

Superfund sites

SiteCityStatus
Foote Mineral CoEast Whiteland TownshipConstruction complete
A I W Frank Mid County MustangExtonReady for anticipated reuse
Paoli Rail YardPaoliReady for anticipated reuse
Walsh LandfillHoneybrook TownshipReady for anticipated reuse
Old Wilmington Road Gw ContaminationWest Caln TownshipCleanup underway
William Dick LagoonsWest Caln TownshipCleanup underway
Malvern TceMalvernConstruction complete
Blosenski LandfillWest Caln TownshipReady for anticipated reuse
KimbertonEast Pikeland TownshipReady for anticipated reuse

Largest releasers

FacilityCityOn-site (lb)Status
Arcelormittal Plate Llc - Coatesville FacilityCoatesville111.8kCompliant
Arkema Inc/West ChesterWest Chester5.8kCompliant
Taylor Ind Inc/ParkerfordParker Ford5.2kCompliant
Delaware Valley Custom Marble Inc/Glenmar MfgWest Grove4.7kPenalties
Whitford Corp/ElversonElverson4.2kCompliant
Metallurgical Products - West Chester PlantWest Chester2.0kCompliant
Johnson Matthey - Wayne PltWayne1.4kPenalties
Dsm BiomedicalExton750Compliant
Henry Kimberton FacKimberton477Compliant
Silvi Concrete Of DowningtownDowningtown29Compliant
Nathan Trotter & Co IncCoatesville10Compliant
Johnson Matthey Inc Downingtown SiteDowningtown10Compliant
Agc Chem Amer Inc/ThorndaleDowningtown7Compliant
Stein, LlcCoatesville6Compliant
The Rock Kamps LlcCoatesville6Compliant
Tin Technology & RefiningWest Chester4Compliant
Lenape Forged Products CorpWest Chester4Compliant
Zeks Compressed Air SolutionsWest Chester3Compliant

Significant violators

FacilityCityPenaltiesLast Inspected
Casa Italia$0
Wetherill Estates-Treatment Plant 301Exton$0
Fizzano Bros Malvern PltExton$02025-09-30
Giovannis Pizza Ii Inc-Storage RoomPottstown$0
Loparex/MalvernMalvern$02025-10-29
Radley Run Country Club StpWest Chester$02025-08-28
Twin Pines Health Care CenterChatham$02022-11-15
Twin Valley Jt SchoolElverson$02024-05-08
Octorara Elementary SchoolAtglen$02025-10-23
Universal Pure - Malvern, PaMalvern$02025-10-20
Uwchlan Twp Eagleview StpExton$02025-11-13
Perry Phillips Mobile HomesCoatesville$0
Mahoney Environmental PhiladelphiaModena$02025-06-10
William Henry Apt StpMalvern$02026-01-10
Kendal Crosslands StpKennett Square$02025-12-03
Portescap West Chester PltWest Chester$02022-08-02
Doe Run Mobile Home Park-Treatment PlantUnionville$0
Immaculata University StpImmaculata$02025-09-19
Turkey Hill Minit Market StpCoatesville$02025-11-11
Pa Dpw/Embreeville CtrCoatesville$02024-02-01
Atglen Borough StpAtglen$02024-11-06
West Grove Boro StpWest Grove$02026-02-02
Coventry Terrace StpParker Ford$02025-12-12
Paradocx Vineyard$0
Kennett Square Boro WwtpKennett Square$02026-01-10
Camp Horseshoe-Treatment ShedPeach Bottom$0
Buckeye Malvern TerminalMalvern$02025-11-19