NPDES NHG360004 · Clean Water Act
GREAT RIVER HYDRO, LLC - MOORE STATION, Littleton, NH: NPDES NHG360004 discharge permit, effluent exceedances, inspections, penalties
GREAT RIVER HYDRO, LLC - MOORE STATION, Littleton, New Hampshire: General permit coverage NHG360004; Administratively continued; issued July 12, 2010, term to December 31, 2014; discharges to Connecticut River.
3 of the 4 pollutants listed for NPDES NHG360004 have no violation or effluent exceedance.
- pH: 8 limits, 5 violations of any kind, 5 effluent exceedances, latest March 31, 2014.
- Flow, in conduit or thru treatment plant: 4 limits.
- Temperature, water deg. fahrenheit: 3 limits.
- Oil & Grease: 1 limit.
- August 14, 2026: Evaluation (S).
GREAT RIVER HYDRO, LLC - MOORE STATION among its neighbors
9 discharge permits are in the Comerford Dam Reservoir-Connecticut River subwatershed (HUC 010801030203); NHG360004 is one. Its county: 71, 5 major; NHG360004 is minor permit.
Other permits in the Comerford Dam Reservoir-Connecticut River subwatershed (HUC 010801030203)
- 3386 SUB-TRANSMISSION LINE ASSET CONDITION REFURBISHMENT PROJECT, Monroe: NHR10027C, minor, term to 2027-02-16
- 3386 SUB-TRANSMISSION LINE ASSET CONDITION REFURBISHMENT PROJECT, Monroe: NHR10027X, minor, term to 2027-02-16
- COMERFORD SUBSTATION REBUILD PROJECT, Monroe: NHR1000YF, minor, term to 2022-02-15
- COMERFORD SUBSTATION REBUILD PROJECT, Monroe: NHR1000Z0, minor, term to 2022-02-15
- GREAT RIVER HYDRO, LLC - COMERFORD STATION, Monroe: NHG360003, minor, term to 2014-12-31
- Q195 ELECTRIC TRANSMISSION LINE REBUILD PROJECT, Littleton: NHR100280, minor, term to 2027-02-16
- Q195 ELECTRIC TRANSMISSION LINE REBUILD PROJECT, Littleton: NHR10028M, minor, term to 2027-02-16
- U199 TRANSMISSION LINE REBUILD AND OPGW PROJECT, Multiple: NHR100210, minor, term to 2027-02-16
Identity
| Facility | GREAT RIVER HYDRO, LLC - MOORE STATION |
|---|---|
| Permittee | GREAT RIVER HYDRO, LLC - MOORE STATION |
| NPDES ID | NHG360004 |
| Status | Administratively continued |
| Type | General permit coverage |
| Class | Minor |
| Facility type | Non-POTW |
| Issued | July 12, 2010 |
| Expires | December 31, 2014 |
| Address | Littleton, NH 03561 |
| Receiving water | Connecticut River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Comerford Dam Reservoir-Connecticut River (HUC 010801030203) |
| SIC | 4911 – Electric Services |
NPDES NHG360004: effluent limits and exceedances
GREAT RIVER HYDRO, LLC - MOORE STATION (NPDES NHG360004): 4 pollutants on file, 4 limited; 1 with a violation of any kind, 1 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| pH | 8 | 5 | 5 | March 31, 2014 | |
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 3 | 0 | 0 | ||
| Oil & Grease | 1 | 0 | 0 |
NPDES NHG360004: inspections, violations and enforcement
NPDES NHG360004: 1 inspection
| Date | What EPA recorded | Agency |
|---|---|---|
| August 14, 2026 | Evaluation | S |
NPDES NHG360004 (GREAT RIVER HYDRO, LLC - MOORE STATION): no single-event violation, formal enforcement action and informal enforcement action on file.
Watch NPDES NHG360004
NPDES NHG360004: one email when its EPA record changes — $99/month.
Permits near NPDES NHG360004
NPDES NHG360004: 4 pollutant rows, 1 dated events; ICIS-NPDES download, loaded October 14, 2026.