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P S N H - Newington Station

Electric Services, major discharger, Newington, New Hampshire. NPDES permit NH0001601 expired Oct 30, 1998; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form P monthly (4 values), outfall 01A form A monthly (12 values), outfall 01B form A monthly (3 values), outfall 01C form A monthly (12 values), outfall 003 form A yearly, outfall SW0 form 1 yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 50 reports late

Limits in force (40)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitinstantaneous maximum≤ 95 deg Fall year001
Flow, in conduit or thru treatment plantmonthly average≤ 325.4 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ 326 MGDall year001
Temp. diff. between intake and dischargeinstantaneous maximum≤ 25 deg Fall year001
pHminimum≥ 6.5 SUall year003
pHmaximum≤ 8 SUall year003
Oil & Greasedaily maximumreport only (mg/L)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year003
pHminimum≥ 6.5 SUall year01A
pHmaximum≤ 8 SUall year01A
Solids, total suspendedmonthly average≤ 30 mg/Lall year01A
Solids, total suspendeddaily maximum≤ 100 mg/Lall year01A
Oil & Greasemonthly average≤ 15 mg/Lall year01A
Oil & Greasedaily maximum≤ 20 mg/Lall year01A
Copper, total [as Cu]monthly average≤ 1 mg/Lall year01A
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year01A
Iron, total [as Fe]monthly average≤ 1 mg/Lall year01A
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year01A
Flow, in conduit or thru treatment plantmonthly average≤ .2 MGDall year01A
Flow, in conduit or thru treatment plantdaily maximum≤ .35 MGDall year01A
Oxidants, total residualdaily maximum≤ .2 mg/Lall year01B
Flow, in conduit or thru treatment plantmonthly average≤ 324.6 MGDall year01B
Flow, in conduit or thru treatment plantdaily maximum≤ 324.8 MGDall year01B
pHminimum≥ 6.5 SUall year01C
pHmaximum≤ 8 SUall year01C
Solids, total suspendedmonthly average≤ 30 mg/Lall year01C
Solids, total suspendeddaily maximum≤ 100 mg/Lall year01C
Oil & Greasemonthly average≤ 15 mg/Lall year01C
Oil & Greasedaily maximum≤ 20 mg/Lall year01C
Copper, total [as Cu]monthly average≤ 1 mg/Lall year01C
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year01C
Iron, total [as Fe]monthly average≤ 1 mg/Lall year01C
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year01C
Flow, in conduit or thru treatment plantmonthly average≤ .2 MGDall year01C
Flow, in conduit or thru treatment plantdaily maximum≤ .35 MGDall year01C
pHminimumreport only (SU)all yearSW0
pHmaximumreport only (SU)all yearSW0
Solids, total suspendeddaily maximumreport only (mg/L)all yearSW0
Oil & Greasedaily maximumreport only (mg/L)all yearSW0
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all yearSW0

How strict are these limits?

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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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NH0001601 · MCP: https://passage-data.com/mcp