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City of Norwich

Water Supply, Norwich, New York. NPDES permit NY0284254, in force until Jul 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form M monthly (14 values), outfall 003 form M monthly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
9 values over a limit, 0 required values missing, 2 of 24 reports late

Limits in force (16)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 7 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmonthly average≤ 50 mg/Lall year001
Solids, total suspendeddaily maximum≤ 75 mg/Lall year001
Solids, settleabledaily maximum≤ .1 mL/Lall year001
Manganese, total [as Mn]daily maximum≤ 1 mg/L (alert, not enforceable)all year001
Aluminum, total [as Al]daily maximum≤ .1 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ .2 mg/Lall year001
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Outfall observation,visual, y/n responsedaily maximumreport only (Y=0;N=1)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Chlorine, total residualdaily maximumreport only (mg/L)all year003

How strict are these limits?

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

Same industry: the 53 Water Supply permits in New York.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0284254 · MCP: https://passage-data.com/mcp