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Lackawanna River Basin Sew Auth

Sewage treatment plant, major discharger, Throop, Pennsylvania. NPDES permit PA0027090 expired Aug 31, 2021; its limits still apply. Last 12 months: over a limit 2 times (last June 2026), 45 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (45 values), outfall 001 form Q quarterly (2 values), outfall 001 form Z yearly (5 values), outfall 001 form Y yearly, outfall 028 form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 19 reports late

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

Period endingParameterReportedLimitOver by
March 2026Chlorine, total residual, instantaneous maximum.74 mg/L≤ .3 mg/L147%
June 2026Chlorine, total residual, monthly average.11 mg/L≤ .09 mg/L22%

Limits in force (67)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]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
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 2502 lb/dall year001
Solids, total suspendedweekly average≤ 3753 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (lb/d)all year001
Solids, total suspendeddaily maximumreport only (lb/d)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 4.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 13.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 375 lb/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 1126 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Copper, total [as Cu]monthly average≤ .014 mg/Lall year001
Copper, total [as Cu]daily maximum≤ .022 mg/Lall year001
Copper, total [as Cu]monthly average≤ 1.2 lb/dall year001
Copper, total [as Cu]daily maximum≤ 1.8 lb/dall year001
Iron, total [as Fe]annual averagereport only (mg/L)all year001
Manganese, total [as Mn]annual averagereport only (mg/L)all year001
Zinc, total [as Zn]monthly averagereport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]monthly averagereport only (lb/d)all year001
Zinc, total [as Zn]daily maximumreport only (lb/d)all year001
Aluminum, total [as Al]annual averagereport only (mg/L)all year001
Dichlorobromomethanequarterly averagereport only (mg/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]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≤ .3 mg/Lall year001
Nitrogen, Totalmonthly totalreport only (lb)all year001
Nitrogen, Totalannual totalreport only (lb)all year001
Nitrogen, Totalmonthly totalreport only (lb)all year001
Nitrogen, Totalannual total≤ 127852 lball year001
Nitrogen, Ammonia Totalmonthly totalreport only (lb)all year001
Nitrogen, Ammonia Totalannual totalreport only (lb)all year001
Nitrogen, Kjeldahl Totalmonthly totalreport only (lb)all year001
Nitrite Plus Nitrate Totalmonthly totalreport only (lb)all year001
Phosphorus, Totalmonthly totalreport only (lb)all year001
Phosphorus, Totalannual totalreport only (lb)all year001
Phosphorus, Totalmonthly totalreport only (lb)all year001
Phosphorus, Totalannual total≤ 17047 lball year001
Coliform, fecal generalgeometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep001
Coliform, fecal generalinstantaneous maximum≤ 10000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 22.5 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1251 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1877 lb/dall year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year028
pHdaily maximumreport only (SU)all year028
Solids, total suspendeddaily maximumreport only (mg/L)all year028
Oil & Greasedaily maximumreport only (mg/L)all year028
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year028
Phosphorus, total [as P]daily maximumreport only (mg/L)all year028
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year028
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year028

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/PA0027090 · MCP: https://passage-data.com/mcp