Delaware County contains 447 EPA-regulated facilities, 7 of which are currently flagged for significant noncompliance. The county also hosts 3 Superfund sites and 20 TRI chemical reporters. EPA has assessed $4.2M in lifetime penalties and TRI reporters disclosed roughly 281.2k lb of on-site releases. That facility count is well above the Pennsylvania state average of 222 per county.
| Site | City | Status |
|---|---|---|
| Havertown Pcp | Haverford | Ready for anticipated reuse |
| Lower Darby Creek Area | Darby Township | Cleanup underway |
| Metro Container Corporation | Trainer | Listed on NPL |
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Monroe Energy, Llc - Trainer Refinery | Trainer | 246.1k | Sig. violation |
| Braskem Amer Inc/Marcus Hook | Marcus Hook | 22.6k | Penalties |
| Evonik Corp/Chester | Chester | 4.8k | Penalties |
| Entegris Chester Plant | Chester | 3.2k | Penalties |
| Esschem Div Of Justi Group Inc/Linwood | Linwood | 2.8k | Penalties |
| Energy Transfer Marcus Hook Terminal | Marcus Hook | 1.6k | Penalties |
| Crown Foundry Co West Philadelphia Bronze | Chester | 28 | Compliant |
| Davis Vision Versant Health | Newtown Square | 1 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Monroe Energy, Llc - Trainer Refinery | Trainer | $98.8k | 2025-09-25 |
| Coventry Crossing Apartments Stp | Glen Mills | $0 | 2025-08-14 |
| Brinton Manor | Glen Mills | $0 | |
| Kevorkian Building-Treatment Plant 1 | Philadelphia | $0 | |
| A. Marinelli & Sons Upper Darby Facility | Upper Darby | $0 | 2023-06-13 |
| Petrochoice Aston Bulk Lube Oil Faciity | Aston | $0 | 2024-06-06 |
| Energy Transfer Mkt & Term Lp/Tank Farm 2 | Aston | $0 | 2025-10-28 |