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MT Jewett Boro Mckean Cnty

Sewage treatment plant, Mount Jewett, Pennsylvania. NPDES permit PA0023451, in force until May 31, 2031. Last 12 months: over a limit once (last May 2026), 25 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (25 values), form Q quarterly
Last report on file
June 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
May 2026Oxygen, dissolved [DO], instantaneous minimum5.7 mg/L≥ 6 mg/L5%

Limits in force (30)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly 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≤ 125 lb/dall year
Solids, total suspendedweekly average≤ 188 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 4.5 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 18.8 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 6.3 lb/dMay–Oct
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Copper, total [as Cu]monthly average≤ .02 mg/Lall year
Lead, total [as Pb]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 plantdaily maximumreport 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≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal generalinstantaneous maximum≤ 10000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep
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≤ 104 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 167 lb/dall year

New limits from Jun 1, 2029

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chlorine, total residual, monthly average0.02 mg/Ltighter0.28 mg/L (9 values)14×
Chlorine, total residual, instantaneous maximum0.048 mg/Ltighter——
Nitrogen, ammonia total [as N], monthly average1 mg/L (May–Oct)tighter0.5 mg/L (3 values, 3 below detection)—
Nitrogen, ammonia total [as N], monthly average4.1 lb/d (May–Oct)tighter0.5 lb/d (3 values, 3 below detection)—
Nitrogen, ammonia total [as N], monthly average3 mg/L (Jan, Feb, Mar, Apr, Nov, Dec)tighter1.63 mg/L (6 values, 2 below detection)0.543×
Nitrogen, ammonia total [as N], monthly average12.5 lb/d (Jan, Feb, Mar, Apr, Nov, Dec)tighter5.5 lb/d (6 values, 2 below detection)0.44×

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/PA0023451 · MCP: https://passage-data.com/mcp