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Exelon Generation Company LLC

Electric Services, major discharger, Lycoming, New York. NPDES permit NY0020109 expired Jul 31, 2013; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (2 values), outfall 001 form B monthly (2 values), outfall 001 form C monthly (4 values), outfall 001 form E monthly (7 values), outfall 001 form F monthly (2 values), outfall 001 form H monthly (5 values), and 14 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 183 reports late

Limits in force (86)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximum≤ 112 deg Fall year001
Flow ratedaily maximumreport only (gal/min)all year001
Specific conductancedaily maximumreport only (umho/cm)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
pHminimum≥ 4 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Boron, total [as B]daily maximum≤ 1 mg/Lall year001
Boron, total [as B]daily maximumreport only (mg/L)all year001
Clamtrol CT-1, Total Waterdaily maximum≤ .2 mg/Lall 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 plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)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 (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ .1 mg/Lall year001
Chlorine, total residualdaily maximum≤ .2 mg/Lall year001
Chlorine, total residualdaily maximum≤ .2 mg/Lall year001
Chlorine, total residualdaily maximum≤ .2 mg/Lall year001
Net rate of additionof heatmonthly averagereport only (GBTU/hr)all year001
Net rate of additionof heatdaily maximum≤ 6 GBTU/hrall year001
Temp. diff. between intake and dischargemonthly averagereport only (deg F)all year001
Temp. diff. between intake and dischargedaily maximum≤ 32.4 deg Fall year001
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 50 mg/Lall year002
Oil & Greasemonthly averagereport only (mg/L)all year002
Oil & Greasemonthly averagereport only (mg/L)all year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Oil & Greasedaily maximum≤ 15 mg/Lall 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 ratedaily maximumreport only (gal/d)all year005
Flow ratedaily maximumreport only (gal/d)all year005
Solids, total suspendeddaily maximum≤ 50 mg/Lall year005
Solids, settleabledaily maximum≤ .3 mL/Lall year005
Oil & Greasedaily maximum≤ 15 mg/Lall year005
Flow ratemonthly average≤ 60000 gal/dall year012
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year012
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year012
pHminimum≥ 6 SUall year012
pHmaximum≤ 9 SUall year012
Solids, total suspendedmonthly average≤ 30 mg/Lall year012
Solids, total suspended7-day average≤ 45 mg/Lall year012
Solids, settleabledaily maximum≤ .1 mL/Lall year012
Chlorine, total residualmaximum≤ .1 mg/Lall year012
Coliform, fecal general30-day geometric mean≤ 200 #/100mLall year012
Coliform, fecal general7-day geometric mean≤ 400 #/100mLall year012
Flow ratemonthly averagereport only (gal/d)all year026
Flow ratedaily maximumreport only (gal/d)all year026
pHminimum≥ 6 SUall year026
pHmaximum≤ 9 SUall year026
Solids, total suspendedmonthly average≤ 30 mg/Lall year026
Solids, total suspendeddaily maximum≤ 50 mg/Lall year026
Oil & Greasedaily maximum≤ 15 mg/Lall year026

How strict are these limits?

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

Same industry: the 39 Electric Services permits in New York.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0020109 · MCP: https://passage-data.com/mcp