National Gypsum Wallboard Plant
9 Michael J Succi Dr, Portsmouth, NH 03802, Rockingham County
A manufacturing facility in Portsmouth, New Hampshire, listed in EPA records under gypsum product manufacturing (NAICS 327420). It is one of 787 active manufacturing facilities in EPA records in New Hampshire.
- Industry
- Glass, cement and stone
- NAICS 327
- TRI reporter
- Yes
- Inspections, 5 yr
- 1
- EPA registry ID
- 110001522530
- Revised
- November 1, 2026
What's made here
- Gypsum Product Manufacturing (NAICS 327420)
Public EPA records
| Toxics Release Inventory | Reports to the TRI (facility ID 03801GLDBNFREEM). |
|---|---|
| Clean Air Act | Listed as a synthetic minor source (permit limits keep it below major-source levels) of air emissions. |
| Greenhouse gas reporting | Reports to the Greenhouse Gas Reporting Program. |
| Inspections | 1 in the last five years; most recent March 11, 2025. |
EPA ECHO, November 1, 2026; not a rating. EPA report ยท About these records