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Mahanoy City Sew Auth Schuylkill Cnty

Sewage treatment plant, major discharger, Mahanoy City, Pennsylvania. NPDES permit PA0070041, in force until Mar 31, 2031. Last 12 months: over a limit 4 times (last June 2026), 36 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (36 values), form Q quarterly, form Z yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
8 values over a limit, 0 required values missing, 1 of 17 reports late

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

Period endingParameterReportedLimit
May 2026Coliform, fecal general, geometric mean> 4 #/100mL≤ 200 #/100mL
May 2026Coliform, fecal general, instantaneous maximum> 2430 #/100mL≤ 1000 #/100mL
June 2026Coliform, fecal general, geometric mean> 72 #/100mL≤ 200 #/100mL
June 2026Coliform, fecal general, instantaneous maximum> 2420 #/100mL≤ 1000 #/100mL

Limits in force (59)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)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≤ 345 lb/dall year
Solids, total suspendedweekly average≤ 518 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly 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
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Copper, total [as Cu]quarterly averagereport only (mg/L)all year
Copper, total [as Cu]daily maximumreport only (mg/L)all year
Iron, total [as Fe]quarterly averagereport only (mg/L)all year
Iron, total [as Fe]daily maximumreport only (mg/L)all year
Manganese, total [as Mn]quarterly averagereport only (mg/L)all year
Manganese, total [as Mn]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]quarterly averagereport only (mg/L)all year
Zinc, total [as Zn]daily maximumreport only (mg/L)all year
Aluminum, total [as Al]quarterly averagereport only (mg/L)all year
Aluminum, total [as Al]daily maximumreport only (mg/L)all year
Chloroformquarterly averagereport only (mg/L)all year
Chloroformdaily maximumreport only (mg/L)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≤ 1.2 mg/Lall year
E. coliinstantaneous maximumreport only (#/100mL)all year
Nitrogen, Totalmonthly totalreport only (lb)all year
Nitrogen, Totalannual totalreport only (lb)all year
Nitrogen, Totalannual total≤ 25205 lball year
Nitrogen, Ammonia Totalmonthly totalreport only (lb)all year
Nitrogen, Ammonia Totalannual totalreport only (lb)all year
Nitrogen, Kjeldahl Totalmonthly totalreport only (lb)all year
Nitrite Plus Nitrate Totalmonthly totalreport only (lb)all year
Phosphorus, Totalmonthly totalreport only (lb)all year
Phosphorus, Totalannual totalreport only (lb)all year
Phosphorus, Totalannual total≤ 3361 lball year
Toxicity [chronic], Ceriodaphnia dubiadaily maximum≤ 2.04 tox chronicall year
Toxicity [chronic], Pimephales promelas [Fathead Minnow]daily maximum≤ 2.04 tox chronicall 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≤ 288 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 460 lb/dall year
TU Static 7Day Chronic Ceriodaphnia dubiadaily maximum≤ 2.04 tox chronicall year
Static 7Day Chronic Pimephales Promelasdaily maximum≤ 2.04 tox chronicall year

New limits from Apr 1, 2029

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Nitrogen, ammonia total [as N], monthly average12 mg/L (Jan, Feb, Mar, Apr, Nov, Dec)new0.955 mg/L (6 values)0.0796×
Nitrogen, ammonia total [as N], monthly average138 lb/d (Jan, Feb, Mar, Apr, Nov, Dec)new——
Nitrogen, ammonia total [as N], monthly average4 mg/L (May–Oct)new3.87 mg/L (3 values)0.968×
Nitrogen, ammonia total [as N], monthly average46 lb/d (May–Oct)new——

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/PA0070041 · MCP: https://passage-data.com/mcp