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Duquesne Light Co

Bituminous Coal And Lignite - Surface, Greensboro, Pennsylvania. NPDES permit PA0250759, in force until Feb 26, 2028. Last 12 months: no values over a limit, 105 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly
Renewal application due
Aug 30, 2027 · 180 days before expiry; your permit may set another date
Last report on file
March 2026
Oct 2024 – Sep 2025
7 values over a limit, 3 required values missing, 5 of 12 reports late

Limits in force (70)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year
Specific conductanceinstantaneous maximumreport only (umho/cm)all year
Specific conductanceinstantaneous maximumreport only (umho/cm)all year
Specific conductanceinstantaneous maximumreport only (umho/cm)all year
Specific conductanceinstantaneous maximumreport only (umho/cm)all year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous maximum≤ 9 SUall year
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Solids, total suspendedmonthly average≤ 35 mg/Lall year
Solids, total suspendedmonthly average≤ 35 mg/Lall year
Solids, total suspendeddaily maximum≤ 70 mg/Lall year
Solids, total suspendeddaily maximum≤ 70 mg/Lall year
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year
Solids, settleableinstantaneous maximum≤ .5 mL/Lall year
Solids, settleableinstantaneous maximum≤ .5 mL/Lall year
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year
Iron, total [as Fe]monthly average≤ 3 mg/Lall year
Iron, total [as Fe]monthly average≤ 3 mg/Lall year
Iron, total [as Fe]daily maximum≤ 6 mg/Lall year
Iron, total [as Fe]daily maximum≤ 6 mg/Lall year
Iron, total [as Fe]instantaneous maximum≤ 7 mg/Lall year
Iron, total [as Fe]instantaneous maximum≤ 7 mg/Lall year
Iron, total [as Fe]instantaneous maximum≤ 7 mg/Lall year
Iron, total [as Fe]instantaneous maximum≤ 7 mg/Lall year
Manganese, total [as Mn]monthly average≤ 2 mg/Lall year
Manganese, total [as Mn]monthly average≤ 2 mg/Lall year
Manganese, total [as Mn]daily maximum≤ 4 mg/Lall year
Manganese, total [as Mn]daily maximum≤ 4 mg/Lall year
Manganese, total [as Mn]instantaneous maximum≤ 5 mg/Lall year
Manganese, total [as Mn]instantaneous maximum≤ 5 mg/Lall year
Aluminum, total [as Al]instantaneous maximumreport only (mg/L)all year
Aluminum, total [as Al]instantaneous maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantinstantaneous minimumreport only (gal/min)all year
Flow, in conduit or thru treatment plantinstantaneous minimumreport only (gal/min)all year
Flow, in conduit or thru treatment plantinstantaneous minimumreport only (gal/min)all year
Flow, in conduit or thru treatment plantinstantaneous minimumreport only (gal/min)all year
Alkalinity - Acidity [as CaCO3]instantaneous minimum≥ 0 mg/Lall year
Alkalinity - Acidity [as CaCO3]instantaneous minimum≥ 0 mg/Lall year
Alkalinity - Acidity [as CaCO3]instantaneous minimum≥ 0 mg/Lall year
Alkalinity - Acidity [as CaCO3]instantaneous minimum≥ 0 mg/Lall year
Alkalinity - Acidity [as CaCO3]instantaneous minimum≥ 0 mg/Lall year
Alkalinity - Acidity [as CaCO3]instantaneous minimum≥ 0 mg/Lall year

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

Same industry: the 351 Coal Mining permits in Pennsylvania.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0250759 · MCP: https://passage-data.com/mcp