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Schwenksville Boro Auth Montgomery Cnty

Sewage treatment plant, Schwenksville, Pennsylvania. NPDES permit PA0020303, in force until Aug 31, 2027. Last 12 months: over a limit 3 times (last June 2026), 32 required values missing, 2 of 13 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (32 values), form Q quarterly (12 values)
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
December 2025Coliform, fecal general, instantaneous maximum2600 #/100mL≤ 1000 #/100mL160%
January 2026Coliform, fecal general, instantaneous maximum18000 #/100mL≤ 1000 #/100mL1700%
June 2026Nitrogen, ammonia total [as N], monthly average6.7 mg/L≤ 3 mg/L123%

Limits in force (52)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cinstantaneous maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cinstantaneous maximumreport only (lb/d)all year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendedweekly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 50 lb/dall year
Solids, total suspendedweekly average≤ 75 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedinstantaneous maximumreport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, total suspendedinstantaneous maximumreport only (lb/d)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]instantaneous maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 23 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 7.5 lb/dMay–Oct
Phosphorus, total [as P]monthly average≤ 1.5 mg/LApr–Oct
Phosphorus, total [as P]monthly average≤ 3.7 lb/dApr–Oct
Chloride [as Cl]quarterly averagereport only (mg/L)all year
Chloride [as Cl]instantaneous maximumreport only (mg/L)all year
Sulfate, total [as SO4]quarterly averagereport only (mg/L)all year
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year
Copper, total [as Cu]quarterly averagereport only (mg/L)all year
Copper, total [as Cu]instantaneous 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. colidaily maximumreport only (#/100mL)all year
Solids, total dissolvedquarterly average≤ 1000 mg/Lall year
Solids, total dissolveddaily maximum≤ 2000 mg/Lall year
Solids, total dissolvedquarterly average≤ 2502 lb/dall year
Bromide [as Br]quarterly averagereport only (mg/L)all year
Bromide [as Br]instantaneous maximumreport only (mg/L)all year
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal generalgeometric mean≤ 200 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 30 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 50 lb/dMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 63 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 75 lb/dMay–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 100 lb/dJan, Feb, Mar, Apr, Nov, Dec

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/PA0020303 · MCP: https://passage-data.com/mcp