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Electric Services, major discharger, Bow, New Hampshire. NPDES permit NH0001465 expired Aug 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| Oxidants, total residual | instantaneous maximum | ≤ .2 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 69.1 MGD | all year | 001 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 002 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 002 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 002 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 002 |
| Oxidants, total residual | daily maximum | ≤ .2 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 187.2 MGD | all year | 002 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 003 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 003 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 003 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 003 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 003 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 003 |
| Oxygen, dissolved percent saturation | minimum | ≥ 75 % | all year | 003 |
| pH | minimum | ≥ 6.5 SU | all year | 003 |
| pH | minimum | report only (SU) | all year | 003 |
| pH | maximum | ≤ 8 SU | all year | 003 |
| pH | maximum | report only (SU) | all year | 003 |
| pH | daily maximum | report only (SU) | all year | 003 |
| Solids, total | daily maximum | report only (mg/L) | all year | 003 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Oil & Grease | monthly average | ≤ 15 mg/L | all year | 003 |
| Oil & Grease | monthly average | report only (mg/L) | all year | 003 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 003 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 003 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 003 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 003 |
| Iron, total recoverable | monthly average | ≤ 1 mg/L | all year | 003 |
| Iron, total recoverable | daily maximum | ≤ 1 mg/L | all year | 003 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 003 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 003 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 003 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 003 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 003 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 003 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 003 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 003 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 003 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | 003 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | 003 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | 003 |
| Copper, total recoverable | monthly average | ≤ 1 mg/L | all year | 003 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 003 |
| Copper, total recoverable | daily maximum | ≤ 1 mg/L | all year | 003 |
| Oxidants, total residual | daily maximum | ≤ .03 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 265.3 MGD | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 5.3 MGD | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 275.4 MGD | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 13 MGD | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Ammonia [as N] + unionized ammonia | daily maximum | report only (mg/L) | all year | 003 |
| Ammonia [as N] + unionized ammonia | daily maximum | report only (mg/L) | all year | 003 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 003 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | 003 |
| LC50 Static 48Hr Acute Pimephales promelas | monthly average minimum | report only (%) | all year | 003 |
| NOAEL Static 48Hr Acute Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | 003 |
| NOAEL Static Renewal 48Hr Acute Pimephales promelas | monthly average minimum | report only (%) | all year | 003 |
| pH | minimum | ≥ 6.5 SU | all year | 004 |
| pH | minimum | ≥ 6.5 SU | all year | 004 |
| pH | minimum | ≥ 6.5 SU | all year | 004 |
| pH | maximum | ≤ 8 SU | all year | 004 |
| pH | maximum | ≤ 8 SU | all year | 004 |
| pH | maximum | ≤ 8 SU | all year | 004 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 004 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 004 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| pH | minimum | ≥ 6.5 SU | all year | 005 |
| pH | minimum | ≥ 6.5 SU | all year | 005 |
| pH | maximum | ≤ 8 SU | all year | 005 |
| pH | maximum | ≤ 8 SU | all year | 005 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 005 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | annual total | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | annual total | report only (MGD) | all year | 005 |
Cited limits by parameter: New Hampshire's rules and the federal ones.
Same industry: the 6 Electric Services permits in New Hampshire.
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