Warren Truck Assembly Plant (Wtap)
21500 Mound Road, Warren, MI 48091, Macomb County
A manufacturing facility in Warren, Michigan, listed in EPA records under automobile and light duty motor vehicle manufacturing (NAICS 336110) and also metal coating, engraving (except jewelry and silverware), and allied services to manufacturers. It is one of 6,071 active manufacturing facilities in EPA records in Michigan, 159 of them in Warren.
- Industry
- Vehicles, aircraft and parts
- NAICS 336
- TRI reporter
- Yes
- Inspections, 5 yr
- 5
- EPA registry ID
- 110000405393
- Revised
- November 1, 2026
What's made here
- Automobile and Light Duty Motor Vehicle Manufacturing (NAICS 336110)
- Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers (NAICS 332812)
Public EPA records
| Toxics Release Inventory | Reports to the TRI (facility ID 48091WRRNT21500). |
|---|---|
| Clean Air Act | Listed as a major source of air emissions. |
| Clean Water Act | A non-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 | 5 in the last five years; most recent August 31, 2026. |
EPA ECHO, November 1, 2026; not a rating. EPA report ยท About these records