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Dover City of WWTP

Sewage treatment plant, major discharger, Dover, New Hampshire. NPDES permit NH0101311 expired Sep 30, 2011; 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: form A monthly (28 values), form B quarterly (10 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
8 values over a limit, 0 required values missing, 1 of 13 reports late

Limits in force (38)

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≤ 1176 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 1960 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly average≤ 1764 lb/dall year
pHminimum≥ 6 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≤ 1176 lb/dall year
Solids, total suspendeddaily maximum≤ 1960 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly average≤ 1764 lb/dall year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jul–Sep
Nickel, total recoverabledaily maximumreport only (mg/L)Jul–Sep
Zinc, total recoverabledaily maximumreport only (mg/L)Jul–Sep
Aluminum, total recoverabledaily maximumreport only (mg/L)Jul–Sep
Cadmium, total recoverabledaily maximumreport only (mg/L)Jul–Sep
Lead, total recoverabledaily maximumreport only (mg/L)Jul–Sep
Chromium, total recoverabledaily maximumreport only (mg/L)Jul–Sep
Copper, total recoverabledaily maximumreport only (mg/L)Jul–Sep
Coliform, fecal - % samples exceeding limitmonthly maximum≤ 10 %all 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≤ .75 mg/Lall year
Chlorine, total residualdaily maximum≤ 1 mg/Lall year
Enterococcimonthly averagereport only (CFU/100mL)all year
Enterococcidaily maximumreport only (CFU/100mL)all year
Coliform, fecal generalmonthly geometric mean≤ 14 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 14 #/100mLall year
Coliform, fecal generaldaily maximumreport only (#/100mL)all year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)daily minimum≥ 100 %Jul–Sep
LC50 Static 48Hr Acute Menidiadaily minimum≥ 100 %Jul–Sep

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/NH0101311 · MCP: https://passage-data.com/mcp