Clean Water Act discharge permit · NPDES NHPIU006O
UNI-CAST, Londonderry, NH: NPDES NHPIU006O discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
UNI-CAST, held by Uni-Cast, holds NPDES permit NHPIU006O. EPA’s file records it issued June 1, 2025 and expiring May 31, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for UNI-CAST: its NPDES ID, its permit type and status, its dates, its address in Londonderry, New Hampshire. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES NHPIU006O.
Identity
| Facility as filed | UNI-CAST |
|---|---|
| Permittee as filed | Uni-Cast |
| NPDES ID | NHPIU006O |
| Permit status | Effective |
| Permit type | Individual industrial user permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 1, 2025 |
| Expiration date | May 31, 2028 |
| Issuing agency | Manchester City Of |
| Address | Londonderry, NH 03053 |
| Receiving water impaired | 303(D) Listed |
| NAICS | 331524 – Aluminum Foundries [Except Die-Casting] |
| SIC | 3365 – Aluminum Foundries |
| Other EPA IDs (FRS) | RCRA handler NHD980522270; ICIS-AIR source NH0000003301590807 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES NHPIU006O.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NHPIU006O.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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- One watershed — $2,990/year
- One state — $4,990/year
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How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID NHPIU006O there.
Nearby on the register
- Discharge permits in Londonderry
- Every permit record in Londonderry, A to Z
- Discharge permits in New Hampshire
- Every permit record in New Hampshire, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.