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Lincoln W W T P

Sewage treatment plant, major discharger, Lincoln, New Hampshire. NPDES permit NH0100706 expired Aug 31, 2012; its limits still apply. Last 12 months: over a limit 3 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (36 values), form B quarterly (12 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 5 of 16 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
March 2026LC50 Static 48Hr Acute Ceriodaphnia dubia, daily minimum70.7 %≥ 100 %29%
March 2026LC50 Static 48Hr Acute Pimephales promelas, daily minimum70.7 %≥ 100 %29%
June 2026LC50 Static 48Hr Acute Pimephales promelas, daily minimum71.8 %≥ 100 %28%

Limits in force (48)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 325 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 542 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cweekly average≤ 488 lb/dall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendeddaily maximum≤ 50 mg/Lall year
Solids, total suspendedmonthly average≤ 325 lb/dall year
Solids, total suspendeddaily maximum≤ 542 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, total suspendedweekly average≤ 488 lb/dall year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Nickel, total recoverabledaily maximumreport only (mg/L)all year
Zinc, total recoverabledaily maximumreport only (mg/L)all year
Aluminum, total recoverablemonthly averagereport only (mg/L)all year
Aluminum, total recoverabledaily maximumreport only (mg/L)all year
Aluminum, total recoverabledaily maximumreport only (mg/L)all year
Cadmium, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverablemonthly average≤ 9 ug/Lall year
Lead, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverabledaily maximumreport only (ug/L)all year
Chromium, total recoverabledaily maximumreport only (mg/L)all year
Copper, total recoverablemonthly average≤ 46.7 ug/Lall year
Copper, total recoverabledaily maximumreport only (mg/L)all year
Copper, total recoverabledaily maximum≤ 62.3 ug/Lall year
E. coli, thermotol, MF, MTECmonthly geometric mean≤ 126 #/100mLall year
E. coli, thermotol, MF, MTECdaily maximum≤ 406 #/100mLall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .18 mg/Lall year
Chlorine, total residualdaily maximum≤ .31 mg/Lall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
LC50 Static 48Hr Acute Ceriodaphnia dubiadaily minimum≥ 100 %all year
LC50 Static 48Hr Acute Pimephales promelasdaily minimum≥ 100 %all year
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiadaily minimumreport only (%)all year
Noel Statre 7Day Chronic Pimephalesdaily minimumreport only (%)all year

How strict are these limits?

Cited limits by parameter: New Hampshire's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NH0100706 · MCP: https://passage-data.com/mcp