Uss Mon Valley Works - Irvin Plant
Camp Hollow Rd, West Mifflin, PA 15122, Allegheny County
A manufacturing facility in West Mifflin, Pennsylvania, listed in EPA records under all other petroleum and coal products manufacturing (NAICS 324199) and also iron and steel mills and ferroalloy manufacturing and rolled steel shape manufacturing. It is one of 5,394 active manufacturing facilities in EPA records in Pennsylvania.
- Industry
- Petroleum and coal products
- NAICS 324
- TRI reporter
- Yes
- Inspections, 5 yr
- 11
- EPA registry ID
- 110008470724
- Revised
- November 1, 2026
What's made here
- All Other Petroleum and Coal Products Manufacturing (NAICS 324199)
- Iron and Steel Mills and Ferroalloy Manufacturing (NAICS 331110)
- Rolled Steel Shape Manufacturing (NAICS 331221)
Public EPA records
| Toxics Release Inventory | Reports to the TRI (facility ID 15034SSRVNPOBOX). |
|---|---|
| Clean Air Act | Listed as a major source of air emissions. |
| Clean Water Act | A major water discharge permit (NPDES). |
| Hazardous waste (RCRA) | Listed as a large quantity generator of hazardous waste (1,000 kg or more a month). |
| Greenhouse gas reporting | Reports to the Greenhouse Gas Reporting Program. |
| Inspections | 11 in the last five years; most recent September 3, 2026. |
EPA ECHO, November 1, 2026; not a rating. EPA report ยท About these records