Pollution in Montgomery County, Pennsylvania

Montgomery County contains 832 EPA-regulated facilities, 22 of which are currently flagged for significant noncompliance. The county also hosts 17 Superfund sites and 50 TRI chemical reporters. EPA has assessed $13.1M in lifetime penalties and TRI reporters disclosed roughly 1.3M lb of on-site releases. That facility count is well above the Pennsylvania state average of 222 per county.

Superfund17NPL sites
TRI Facilities50reporters
EPA Facilities832regulated
Sig. Violators22current SNC

Superfund sites

SiteCityStatus
Stanley KesslerKing Of PrussiaReady for anticipated reuse
North Penn Area 1SoudertonReady for anticipated reuse
North Penn Area 2HatfieldReady for anticipated reuse
Henderson RoadUpper Merion TownshipReady for anticipated reuse
Crater Resources Inc Keystone Coke Co Alan Wood Steel CoUpper Merion TownshipCleanup underway
RaymarkHatboroReady for anticipated reuse
Salford QuarryLower Salford TownshipCleanup underway
North Penn Area 6LansdaleCleanup underway
North Penn Area 5Montgomery TownshipCleanup underway
North Penn Area 7North WalesCleanup underway
Borit AsbestosAmblerReady for anticipated reuse
Baghurst DriveHarleysvilleCleanup underway
North Penn Area 12WorcesterReady for anticipated reuse
Commodore Semiconductor GroupLower Providence TownshipConstruction complete
Tysons DumpUpper Merion TwpReady for anticipated reuse
Willow Grove Naval Air And Air Reserve StationHorshamCleanup underway
Occidental Chemical Corp Firestone Tire Rubber CoLower Pottsgrove TownshipReady for anticipated reuse

Largest releasers

FacilityCityOn-site (lb)Status
Jbs Souderton Inc/Franconia TwpSouderton841.1kPenalties
Global Advanced Metals Usa/BoyertownBoyertown193.3kPenalties
Superior Tube Collegeville FacCollegeville190.0kCompliant
Accellent Inc/Collegeville MicrocoaxCollegeville55.5kPenalties
Coopers Creek Chemical CorpWest Conshohocken15.8kCompliant
Wood, IncNorristown7.3kCompliant
Tech Tube, Inc.King Of Prussia6.5kCompliant
Clemens Food Group/Hatfield PltHatfield6.3kPenalties
Jbs - Souderton Beef ProcessingSouderton2.0kPenalties
Fiberline AvientHatfield1.3kCompliant
Smithkline Beecham ResearchCollegeville1.2kCompliant
John Middleton Co/King Of PrussiaKing Of Prussia554Compliant
Matheson Tri-GasPalm363Compliant
Custom Processing Services LlcEast Greenville302Penalties
Itw Philadelphia ResinsMontgomeryville234Compliant
Sps Tech Inc/AbingtonJenkintown201Penalties
Hammond Lead Products/PottstownPottstown114Compliant
Penn Color/HatfieldHatfield59Compliant
Pecora CorpHarleysville40Compliant
Arcelormittal Plate Llc Conshohocken FacilityConshohocken40Compliant
Titan International IncPottstown10Penalties
Lehigh Valley Dairy FarmsLansdale10Compliant
Rex Heat Treat Of PaLansdale5Compliant
C & L Rivet Co IncHatboro5Compliant

Significant violators

FacilityCityPenaltiesLast Inspected
Reworld Plymouth/ PlymouthConshohocken$484.2k2025-05-29
Spray ProductsConshohocken$15.0k2026-03-19
Telford Auto Parts FacilityTelford$12.3k2023-08-21
Linh Quang Buddhist Temple StpTelford$02025-03-17
Upper Gwynedd Twp StpNorth Wales$02026-01-14
Skippack Recreational Assoc$0
Jdm Materials Cnty Line Batch PltHuntingdon Valley$02024-11-20
Lite Tech IncNorristown$02025-08-04
Ncc Automated Systems, Inc.Souderton$02024-05-08
Montgomery Chem Ltd/ConshohockenConshohocken$02022-10-06
Fitzwater Station$0
Evansburg State Park-Well #1 Park OfficeCollegeville$0
Taco Pizza-Treatment PlantNorristown$0
First Student Plymouth Meeting Fac #11621Plymouth Meeting$02022-04-25
Wings FieldBlue Bell$02024-11-13
Hatfield Twp Muni Auth/ColmarColmar$02026-01-30
Whitemarsh Township StpLafayette Hill$02025-11-03
Camp Tohikanee StpValley Forge$02025-01-09
Haines Historical Foundation Museum Welcome CenterPennsburg$02025-05-20
Maplewood HeightsMontgomeryville$0
Dyer QuarryColmar$02024-08-22
The American College (630 Allendale Rd)King Of Prussia$02025-11-04