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Homer City Generation LP

Industrial or other facility, Indiana, Pennsylvania. NPDES permit PA0235555 expired Mar 31, 2025; its limits still apply. Last 12 months: no values over a limit, 52 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (27 values), outfall 001 form Q quarterly (25 values), outfall 002 form A monthly (25 values), outfall 002 form Q quarterly (24 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 32 reports late

Limits in force (101)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
pHinstantaneous maximumreport only (SU)all year001
pHinstantaneous maximumreport only (SU)all year001
Alkalinity, total [as CaCO3]monthly averagereport only (mg/L)all year001
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all year001
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year001
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year001
Acidity, total [as CaCO3]monthly averagereport only (mg/L)all year001
Acidity, total [as CaCO3]daily maximumreport only (mg/L)all year001
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year001
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year001
Solids, total suspendedmonthly average≤ 35 mg/Lall year001
Solids, total suspendeddaily maximum≤ 70 mg/Lall year001
Solids, total suspendedinstantaneous maximumreport only (mg/L)all year001
Solids, total suspendedinstantaneous maximumreport only (mg/L)all year001
Chloride [as Cl]monthly averagereport only (mg/L)all year001
Chloride [as Cl]daily maximumreport only (mg/L)all year001
Chloride [as Cl]instantaneous maximumreport only (mg/L)all year001
Chloride [as Cl]instantaneous maximumreport only (mg/L)all year001
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year001
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year001
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year001
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year001
Iron, total [as Fe]monthly average≤ 1.5 mg/Lall year001
Iron, total [as Fe]daily maximum≤ 3 mg/Lall year001
Iron, total [as Fe]instantaneous maximumreport only (mg/L)all year001
Iron, total [as Fe]instantaneous maximumreport only (mg/L)all year001
Manganese, total [as Mn]monthly average≤ 1 mg/Lall year001
Manganese, total [as Mn]daily maximum≤ 2 mg/Lall year001
Manganese, total [as Mn]instantaneous maximumreport only (mg/L)all year001
Manganese, total [as Mn]instantaneous maximumreport only (mg/L)all year001
Thallium, total [as Tl]monthly averagereport only (mg/L)all year001
Thallium, total [as Tl]daily maximumreport only (mg/L)all year001
Aluminum, total [as Al]monthly average≤ .75 mg/Lall year001
Aluminum, total [as Al]daily maximum≤ .75 mg/Lall year001
Aluminum, total [as Al]instantaneous maximumreport only (mg/L)all year001
Aluminum, total [as Al]instantaneous maximumreport 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
Flow, in conduit or thru treatment plantdaily maximumreport only (cfs)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (cfs)all year001
Water Elevationinstantaneous maximumreport only (ft)all year001
Alkalinity - Acidity [as CaCO3]instantaneous minimum≥ 0 mg/Lall year001
Solids, total dissolvedmonthly averagereport only (mg/L)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Solids, total dissolvedinstantaneous maximumreport only (mg/L)all year001
Solids, total dissolvedinstantaneous maximumreport only (mg/L)all year001
Osmotic pressure, total, unf whl wtrmonthly averagereport only (mOsm/kg)all year001
Osmotic pressure, total, unf whl wtrdaily maximumreport only (mOsm/kg)all year001
Osmotic pressure, total, unf whl wtrinstantaneous maximumreport only (mOsm/kg)all year001
Osmotic pressure, total, unf whl wtrinstantaneous maximumreport only (mOsm/kg)all year001
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
pHinstantaneous maximumreport only (SU)all year002
pHinstantaneous maximumreport only (SU)all year002
Alkalinity, total [as CaCO3]monthly averagereport only (mg/L)all year002
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all year002
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year002
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year002
Acidity, total [as CaCO3]monthly averagereport only (mg/L)all year002
Acidity, total [as CaCO3]daily maximumreport only (mg/L)all year002
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year002
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year002
Solids, total suspendedmonthly average≤ 35 mg/Lall year002
Solids, total suspendeddaily maximum≤ 70 mg/Lall year002
Solids, total suspendedinstantaneous maximumreport only (mg/L)all year002
Solids, total suspendedinstantaneous maximumreport only (mg/L)all year002
Chloride [as Cl]monthly averagereport only (mg/L)all year002
Chloride [as Cl]daily maximumreport only (mg/L)all year002
Chloride [as Cl]instantaneous maximumreport only (mg/L)all year002
Chloride [as Cl]instantaneous maximumreport only (mg/L)all year002
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year002
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year002
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year002
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year002
Iron, total [as Fe]monthly average≤ 1.5 mg/Lall year002
Iron, total [as Fe]daily maximum≤ 3 mg/Lall year002
Iron, total [as Fe]instantaneous maximumreport only (mg/L)all year002
Iron, total [as Fe]instantaneous maximumreport only (mg/L)all year002
Manganese, total [as Mn]monthly average≤ 1 mg/Lall year002
Manganese, total [as Mn]daily maximum≤ 2 mg/Lall year002
Manganese, total [as Mn]instantaneous maximumreport only (mg/L)all year002
Manganese, total [as Mn]instantaneous maximumreport only (mg/L)all year002
Aluminum, total [as Al]monthly average≤ .75 mg/Lall year002
Aluminum, total [as Al]daily maximum≤ .75 mg/Lall year002
Aluminum, total [as Al]instantaneous maximumreport only (mg/L)all year002
Aluminum, total [as Al]instantaneous maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (cfs)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (cfs)all year002
Alkalinity - Acidity [as CaCO3]instantaneous minimum≥ 0 mg/Lall year002
Solids, total dissolvedmonthly averagereport only (mg/L)all year002
Solids, total dissolveddaily maximumreport only (mg/L)all year002
Solids, total dissolvedinstantaneous maximumreport only (mg/L)all year002
Solids, total dissolvedinstantaneous maximumreport only (mg/L)all year002
Osmotic pressure, total, unf whl wtrmonthly averagereport only (mOsm/kg)all year002
Osmotic pressure, total, unf whl wtrdaily maximumreport only (mOsm/kg)all year002
Osmotic pressure, total, unf whl wtrinstantaneous maximumreport only (mOsm/kg)all year002
Osmotic pressure, total, unf whl wtrinstantaneous maximumreport only (mOsm/kg)all year002

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/PA0235555 · MCP: https://passage-data.com/mcp