Clean Water Act discharge permit · NPDES NHR10025O
MONADNOCK SUBSTATION REBUILD, Troy, NH: NPDES NHR10025O discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MONADNOCK SUBSTATION REBUILD, held by PSNH d/b/a Eversource Energy, holds NPDES permit NHR10025O. EPA’s file records it issued February 17, 2025 and expiring February 16, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for MONADNOCK SUBSTATION REBUILD: its NPDES ID, its permit type and status, its dates, its address in Troy, New Hampshire. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES NHR10025O.
Identity
| Facility as filed | MONADNOCK SUBSTATION REBUILD |
|---|---|
| Permittee as filed | PSNH d/b/a Eversource Energy |
| NPDES ID | NHR10025O |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | February 17, 2025 |
| Expiration date | February 16, 2027 |
| Issuing agency | U.S. EPA |
| Address | Troy, NH 03465 |
| Subwatershed | South Branch Ashuelot River (HUC 010802010303) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
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 NHR10025O.
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 NHR10025O.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, NHR10025O.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 NHR10025O there.
Nearby on the register
- Discharge permits in Troy
- Every permit record in Troy, 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 September 14, 2026.