County page
Delaware County
Delaware County currently shows 3 Superfund sites, 447 imported facility profiles, and 281,176 lbs in loaded TRI releases.
Overview
What this county page is saying
This live county page is generated from the ingested EPA datasets. It merges ECHO facility compliance rows, TRI release totals, and any Superfund sites attached to Delaware County.
The latest loaded TRI year is 2024, with 281,176 lbs in county-level on-site releases tied to the imported facility set.
Focus points
Design and product notes
County pages combine facility compliance history with chemical release totals.
TRI chemistry shows what is being reported, while ECHO shows who keeps drawing enforcement attention.
Superfund records add legacy cleanup context even when live contaminant detail is still sparse.
Superfund layer
Cleanup sites in this county
Havertown Pcp
Havertown Pcp is in EPA's Superfund layer for Haverford, PA. Live ingestion currently includes the official EPA detail links and geocoded site record.
Lower Darby Creek Area
Lower Darby Creek Area is in EPA's Superfund layer for Darby Township, PA. Live ingestion currently includes the official EPA detail links and geocoded site record.
Metro Container Corporation
Metro Container Corporation is in EPA's Superfund layer for Trainer, PA. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
Monroe Energy, Llc - Trainer Refinery
Significant Violation across 12 of the last 12 quarters, with $98,761 in recorded penalties.
Energy Transfer Marcus Hook Terminal
Violation Identified across 9 of the last 12 quarters, with $766,996 in recorded penalties.
Evonik Corp/chester
Violation Identified across 10 of the last 12 quarters, with $1,875 in recorded penalties.
Covanta Delaware Valley Lp - Delaware Valley Res Rec
Violation Identified across 11 of the last 12 quarters, with $344,278 in recorded penalties.
Entegris Chester Plant
Significant noncompliance across 6 of the last 12 quarters, with $202,818 in recorded penalties.
Delcora Treatment Plant - Wrtp
Violation Identified across 10 of the last 12 quarters, with $62,075 in recorded penalties.
Marcus Hook Terminal
Violation across 12 of the last 12 quarters, with $2,500 in recorded penalties.
Alloy Surfaces Aston Plt
Significant noncompliance across 7 of the last 12 quarters, with $1,560,000 in recorded penalties.
Harrahs Chester Downs/ Chester
Violation Identified across 11 of the last 12 quarters, with $2,200 in recorded penalties.
Braskem Amer Inc/marcus Hook
Violation Identified across 4 of the last 12 quarters, with $2,700 in recorded penalties.
Atlantic Aviation Enterprise Ave Fac
Significant noncompliance across 7 of the last 12 quarters, with $57,090 in recorded penalties.
Baker Petrolite Eddystone Whse
Significant noncompliance across 7 of the last 12 quarters, with $18,945 in recorded penalties.
Esstech Essington Fac
Significant noncompliance across 6 of the last 12 quarters, with $25,000 in recorded penalties.
Pa State Sys of Higher Ed/cheyney Univ Pa
Violation Identified across 6 of the last 12 quarters, with $4,500 in recorded penalties.
Audrey Russ & Paul Kline Srstp
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Colli, Jerry
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Concord Ind Park Stp
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Concord Twp Central Stp
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Ivey Srstp
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
John D Savon Srstp
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Xylene (mixed isomers) | Volatile organic compound | 4 | 55,332 lbs |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | TRI-listed chemical | 2 | 42,039 lbs |
| n-Hexane | TRI-listed chemical | 3 | 39,757 lbs |
| Toluene | Volatile organic compound | 3 | 33,464 lbs |
| Benzene | Volatile organic compound | 2 | 27,552 lbs |
| Propylene | TRI-listed chemical | 2 | 25,972 lbs |
| 1, 2, 4-Trimethylbenzene | Volatile organic compound | 3 | 24,863 lbs |
| Ammonia | TRI-listed chemical | 2 | 7,529 lbs |
| Ethylbenzene | Volatile organic compound | 4 | 5,169 lbs |
| Naphthalene | TRI-listed chemical | 3 | 4,502 lbs |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | TRI-listed chemical | 2 | 4,158 lbs |
| Methyl methacrylate | TRI-listed chemical | 1 | 2,828 lbs |
| Hydrogen sulfide | TRI-listed chemical | 1 | 2,280 lbs |
| Methanol | TRI-listed chemical | 2 | 1,042 lbs |
| Tetrachloroethylene | TRI-listed chemical | 1 | 983 lbs |
| Cyclohexane | TRI-listed chemical | 1 | 931 lbs |
| Cumene | TRI-listed chemical | 3 | 642 lbs |
| Carbon disulfide | TRI-listed chemical | 1 | 510 lbs |
| Phenol | TRI-listed chemical | 1 | 396 lbs |
| Polycyclic aromatic compounds | TRI-listed chemical | 2 | 311 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in Pennsylvania
Pennsylvania facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in Pennsylvania
Pennsylvania facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in Pennsylvania
Pennsylvania facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.