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Mountaintop Area Muni Auth

Sewage treatment plant, Clarence, Pennsylvania. NPDES permit PA0208728, in force until Oct 31, 2030. Last 12 months: over a limit 11 times (last June 2026), 27 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (27 values), form Q quarterly
Last report on file
June 2026
Oct 2024 – Sep 2025
10 values over a limit, 0 required values missing, 1 of 13 reports late

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

Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, weekly average80 mg/L≤ 45 mg/L78%
February 2026Coliform, fecal general, instantaneous maximum14136 #/100mL≤ 10000 #/100mL41%
March 2026Coliform, fecal general, instantaneous maximum> 24196 #/100mL≤ 10000 #/100mL—
May 2026Nitrogen, ammonia total [as N], monthly average16 mg/L≤ 10 mg/L60%
May 2026Nitrogen, ammonia total [as N], weekly average25 mg/L≤ 15 mg/L67%
June 2026Chlorine, total residual, instantaneous maximum1.63 mg/L≤ 1.6 mg/L2%
June 2026Chlorine, total residual, monthly average.59 mg/L≤ .5 mg/L18%
June 2026Coliform, fecal general, instantaneous maximum6867 #/100mL≤ 1000 #/100mL587%
June 2026Nitrogen, ammonia total [as N], weekly average20 mg/L≤ 15 mg/L33%
June 2026Solids, total suspended, monthly average53 mg/L≤ 30 mg/L77%
June 2026Solids, total suspended, weekly average72 mg/L≤ 45 mg/L60%

Limits in force (34)

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≤ 58 lb/dall year
Solids, total suspendedweekly average≤ 87 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 15 mg/LMay–Oct
Nitrogen, ammonia total [as N]weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 19 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 58 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 29 lb/dMay–Oct
Nitrogen, ammonia total [as N]weekly average≤ 87 lb/dJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
Chlorine, total residualmonthly average≤ .5 mg/Lall year
Chlorine, total residualinstantaneous maximum≤ 1.6 mg/Lall year
E. coliinstantaneous maximumreport only (#/100mL)all 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≤ 48 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 77 lb/dall year

How strict are these limits?

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/PA0208728 · MCP: https://passage-data.com/mcp