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Tinicum TWP Delaware Cnty

Sewage treatment plant, major discharger, Lester, Pennsylvania. NPDES permit PA0028380, in force until Oct 31, 2030. Last 12 months: no values over a limit, 36 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (36 values), outfall 001 form Q quarterly, outfall 001 form S twice a year, outfall 002 form Q quarterly, outfall 002 form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 19 reports late

Limits in force (65)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
Oxygen, dissolved [DO]monthly averagereport only (mg/L)all 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≤ 350 lb/dall year001
Solids, total suspendedweekly average≤ 525 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 averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 35 lb/dall year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Cyanide, weak acid, dissociabledaily maximumreport only (mg/L)all year001
Copper, total [as Cu]monthly average≤ .045 mg/Lall year001
Copper, total [as Cu]daily maximum≤ .09 mg/Lall year001
Copper, total [as Cu]monthly average≤ .53 lb/dall year001
Copper, total [as Cu]daily maximum≤ 1.05 lb/dall year001
Aluminum, total [as Al]daily maximumreport only (mg/L)all year001
Dichlorobromomethanedaily maximumreport only (ug/L)all year001
Phenolics, total recoverabledaily maximumreport only (mg/L)all year001
Chrysenedaily maximumreport only (mg/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/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≤ .3 mg/Lall year001
Chlorine, total residualinstantaneous maximum≤ 1 mg/Lall year001
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all year001
Perfluorooctanesulfonatedaily maximumreport only (ng/L)all year001
PCBs Wet Weather Analysisdaily maximumreport only (pg/L)all year001
PCBs Dry Weather Analysisdaily maximumreport only (pg/L)all year001
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all year001
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)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 dissolveddaily maximumreport only (mg/L)all year001
Coliform, fecal generalgeometric mean≤ 200 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep001
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 16 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 24 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 183 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 275 lb/dall year001
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
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 89.25 %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 year002
pHdaily maximumreport only (SU)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil & Greasedaily maximumreport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year002
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all year002
Perfluorooctanesulfonatedaily maximumreport only (ng/L)all year002
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all year002
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all year002
Coliform, fecal generaldaily maximumreport only (#/100mL)all year002
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year002

New limits from Nov 1, 2026

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Di[2-ethylhexyl] phthalate [DEHP], daily maximum5 ug/Lnew3 ug/L (9 values, 8 below detection)—
Di[2-ethylhexyl] phthalate [DEHP], monthly average5 ug/Lnew——
Dichlorobromomethane, daily maximum12.16 ug/Lnew1.4 ug/L (8 values)0.115×
Dichlorobromomethane, monthly average6.08 ug/Lnew——

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/PA0028380 · MCP: https://passage-data.com/mcp