Johns Manville International Inc Plant No 8
925 Carpenter Road, Defiance, OH 43512, Defiance County
A manufacturing facility in Defiance, Ohio, listed in EPA records under mineral wool manufacturing (NAICS 327993). It is one of 5,100 active manufacturing facilities in EPA records in Ohio.
- Industry
- Glass, cement and stone
- NAICS 327
- TRI reporter
- Yes
- Inspections, 5 yr
- 3
- EPA registry ID
- 110000383549
- Revised
- November 1, 2026
What's made here
- Mineral Wool Manufacturing (NAICS 327993)
Public EPA records
| Toxics Release Inventory | Reports to the TRI (facility ID 43512MNVLLCARPE). |
|---|---|
| Clean Air Act | Listed as a major source of air emissions. |
| 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 | 3 in the last five years; most recent September 24, 2025. |
EPA ECHO, November 1, 2026; not a rating. EPA report ยท About these records