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Coventry Crossing Apts STP

Sewerage Systems, Glen Mills, Pennsylvania. NPDES permit PA0052434, in force until Jul 31, 2029. Last 12 months: over a limit 13 times (last June 2026), 18 required values missing, 1 of 10 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (18 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 13 values over a limit
Period endingParameterReportedLimitOver by
November 2025Chlorine, total residual, instantaneous maximum.75 mg/L≤ .1 mg/L650%
November 2025Chlorine, total residual, monthly average.05 mg/L≤ .04 mg/L25%
November 2025Phosphorus, total [as P], monthly average2.63 mg/L≤ 2 mg/L32%
November 2025Solids, total suspended, monthly average3.8≤ 3.3 lb/d15%
December 2025Chlorine, total residual, instantaneous maximum.15 mg/L≤ .1 mg/L50%
February 2026Chlorine, total residual, instantaneous maximum.28 mg/L≤ .1 mg/L180%
February 2026Chlorine, total residual, monthly average.05 mg/L≤ .04 mg/L25%
February 2026Nitrogen, ammonia total [as N], monthly average22.25 mg/L≤ 5.1 mg/L336%
February 2026Nitrogen, ammonia total [as N], monthly average5.55≤ 1.7 lb/d226%
May 2026Phosphorus, total [as P], monthly average.32≤ .3 lb/d7%
May 2026Phosphorus, total [as P], monthly average1.61 mg/L≤ 1 mg/L61%
June 2026Phosphorus, total [as P], monthly average.35≤ .3 lb/d17%
June 2026Phosphorus, total [as P], monthly average2.19 mg/L≤ 1 mg/L119%

Limits in force (26)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 10 mg/Lall year
Solids, total suspendedmonthly average≤ 3.3 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 5.1 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.7 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 1.7 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ .6 lb/dMay–Oct
Phosphorus, total [as P]monthly average≤ 2 mg/LJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly average≤ 1 mg/LMay–Oct
Phosphorus, total [as P]monthly average≤ .7 lb/dJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly average≤ .3 lb/dMay–Oct
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≤ .04 mg/Lall year
Chlorine, total residualinstantaneous maximum≤ .1 mg/Lall 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/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6.7 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 3.3 lb/dMay–Oct

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/PA0052434 · MCP: https://passage-data.com/mcp