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Pa Amer Water Co

Sewerage Systems, major discharger, Coatesville, Pennsylvania. NPDES permit PA0026859, in force until Jan 31, 2030. Last 12 months: over a limit 2 times (last February 2026), 39 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (34 values), outfall 001 form Q quarterly (5 values), outfall 003 form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 18 reports late

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

Period endingParameterReportedLimitOver by
February 2026BOD, carbonaceous [5 day, 20 C], weekly average< 1108≤ 1066 lb/d4%
February 2026BOD, carbonaceous [5 day, 20 C], weekly average< 40.1 mg/L≤ 18.3 mg/L119%

Limits in force (57)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 964 lb/dall year001
Solids, total suspendedweekly average≤ 1446 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (lb/d)all year001
Nitrogen, total [as N]monthly average≤ 15 mg/Lall year001
Nitrogen, total [as N]monthly average≤ 876 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 3.3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 64 lb/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 193 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Phosphorus, total [as P]monthly average≤ .81 mg/LApr–Oct001
Phosphorus, total [as P]monthly average≤ 1.62 mg/LJan, Feb, Mar, Nov, Dec001
Phosphorus, total [as P]monthly average≤ 48 lb/dApr–Oct001
Phosphorus, total [as P]monthly average≤ 95 lb/dJan, Feb, Mar, Nov, Dec001
Copper, total [as Cu]monthly average≤ .012 mg/Lall year001
Copper, total [as Cu]monthly average≤ .7 lb/dall year001
Zinc, total [as Zn]quarterly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly average≤ .09 mg/Lall year001
Chlorine, total residualinstantaneous maximum≤ .22 mg/Lall year001
E. coliinstantaneous maximumreport only (#/100mL)all year001
Ultraviolet light transmittancedaily minimumreport only (%)all year001
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (tox chronic)all year001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]daily maximumreport only (tox chronic)all year001
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep001
Coliform, fecal generalgeometric mean≤ 200 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep001
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6.1 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 12.2 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 9.2 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 18.3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 355 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 711 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 533 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1066 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year001
TU Static 7Day Chronic Ceriodaphnia dubiadaily maximumreport only (tox chronic)all year001
Static 7Day Chronic Pimephales Promelasdaily maximumreport only (tox chronic)all year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year003
pHdaily maximumreport only (SU)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Oil & Greasedaily maximumreport only (mg/L)all year003
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year003
Phosphorus, total [as P]daily maximumreport only (mg/L)all year003
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year003
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year003

How strict are these limits?

Cited limits by parameter: Pennsylvania's rules and the federal ones.

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Your permit document is the final word. As JSON: /api/v1/permits/PA0026859 · MCP: https://passage-data.com/mcp