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Concord TWP Delaware Cnty

Sewerage Systems, Garnet Valley, Pennsylvania. NPDES permit PA0054780, in force until Mar 31, 2029. Last 12 months: over a limit once (last April 2026), 23 required values missing. 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
1 value over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
April 2026Phosphorus, total [as P], monthly average2.88 mg/L≤ 2 mg/L44%

Limits in force (27)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 4 mg/Lall 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 suspendedmonthly average≤ 16 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 average≤ 18 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 6 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 9.5 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3 lb/dMay–Oct
Phosphorus, total [as P]monthly average≤ 1 mg/LMay–Oct
Phosphorus, total [as P]monthly average≤ 2 mg/LJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly average≤ .5 lb/dMay–Oct
Phosphorus, total [as P]monthly average≤ 1 lb/dJan, Feb, Mar, Apr, Nov, Dec
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 CFU/100mLall year
Coliform, fecal generalinstantaneous maximum≤ 1000 CFU/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 13 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all 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/PA0054780 · MCP: https://passage-data.com/mcp