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Duncan TWP Tioga Cnty

Sewage treatment plant, Wellsboro, Pennsylvania. NPDES permit PA0228524, in force until Oct 31, 2028. Last 12 months: over a limit once (last February 2026), 23 required values missing, 1 of 10 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (23 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 4 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimit
February 2026Coliform, fecal general, instantaneous maximum> 2420 #/100mL≤ 10000 #/100mL

Limits in force (25)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all 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
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 7.5 lb/dall year
Solids, total suspendedweekly average≤ 11 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)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≤ .5 mg/Lall year
Chlorine, total residualinstantaneous maximum≤ 1.6 mg/Lall year
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal generalgeometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep
Coliform, fecal generalinstantaneous maximum≤ 10000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 10 lb/dall year

Cited limits by parameter: Pennsylvania'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/PA0228524 · MCP: https://passage-data.com/mcp