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Constellation Energy Generation LLC

Electric Services, major discharger, Delta, Pennsylvania. NPDES permit PA0009733 expired Sep 30, 2019; its limits still apply. Last 12 months: no values over a limit, 61 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (12 values), outfall 001 form Q quarterly (6 values), outfall 002 form A monthly (7 values), outfall 002 form Q quarterly (1 value), outfall 003 form A monthly (8 values), outfall 003 form Q quarterly (2 values), and 31 more forms
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 140 reports late

Limits in force (249)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Nitrogen, total [as N]quarterly averagereport only (mg/L)all year001
Nitrogen, total [as N]quarterly averagereport only (lb/d)all year001
Nitrogen, total [as N]quarterly averagereport only (mg/L)all year001
Nitrogen, total [as N]quarterly averagereport only (lb/d)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Polychlorinated biphenyls [PCBs]instantaneous maximumreport only (mg/L)all year001
Polychlorinated biphenyls [PCBs]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
Chlorine, total residualinstantaneous maximum≤ .2 mg/Lall year001
Nalco H150Mdaily maximumreport only (mg/L)all year001
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
pHminimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Polychlorinated biphenyls [PCBs]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
Chlorine, total residualinstantaneous maximum≤ .2 mg/Lall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year003
Solids, total suspendeddaily maximum≤ 100 mg/Lall year003
Oil & Greasemonthly average≤ 15 mg/Lall year003
Oil & Greasedaily maximum≤ 20 mg/Lall year003
Aluminum, total [as Al]monthly averagereport only (mg/L)all year003
Aluminum, total [as Al]daily maximumreport only (mg/L)all year003
Aluminum, total [as Al]monthly averagereport only (lb/d)all year003
Aluminum, total [as Al]daily maximumreport only (lb/d)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Solids, total suspendedmonthly average≤ 30 mg/Lall year004
Solids, total suspendeddaily maximum≤ 100 mg/Lall year004
Oil & Greasemonthly average≤ 15 mg/Lall year004
Oil & Greasedaily maximum≤ 20 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year005
pHminimum≥ 6 SUall year005
pHinstantaneous maximum≤ 9 SUall year005
Solids, total suspendedmonthly average≤ 30 mg/Lall year005
Nitrogen, total [as N]annual averagereport only (mg/L)all year005
Nitrogen, total [as N]annual averagereport only (lb/yr)all year005
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year005
Phosphorus, total [as P]annual averagereport only (mg/L)all year005
Phosphorus, total [as P]monthly average≤ 2 mg/Lall year005
Phosphorus, total [as P]annual averagereport only (lb/yr)all year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
Chlorine, total residualmonthly average≤ .5 mg/Lall year005
Chlorine, total residualinstantaneous maximum≤ 1.6 mg/Lall year005
Coliform, fecal generalgeometric mean≤ 200 CFU/100mLMay–Sep005
Coliform, fecal generalgeometric mean≤ 2000 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec005
Coliform, fecal generalinstantaneous maximum≤ 1000 CFU/100mLMay–Sep005
Coliform, fecal generalinstantaneous maximum≤ 10000 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec005
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year005
Solids, total suspendedmonthly average≤ 30 mg/Lall year006
Solids, total suspendeddaily maximum≤ 100 mg/Lall year006
Oil & Greasemonthly average≤ 15 mg/Lall year006
Oil & Greasedaily maximum≤ 20 mg/Lall year006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year008
pHminimum≥ 6 SUall year008
pHinstantaneous maximum≤ 9 SUall year008
Solids, total suspendeddaily maximumreport only (mg/L)all year008
Oil & Greasedaily maximumreport only (mg/L)all year008
Copper, total [as Cu]daily maximumreport only (mg/L)all year008
Iron, total [as Fe]daily maximumreport only (mg/L)all year008
Nickel, total [as Ni]daily maximumreport only (mg/L)all year008
Zinc, total [as Zn]daily maximumreport only (mg/L)all year008
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)all year008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
pHdaily maximumreport only (SU)all year009
Solids, total suspendeddaily maximumreport only (mg/L)all year009
Oil & Greasedaily maximumreport only (mg/L)all year009
Copper, total [as Cu]daily maximumreport only (mg/L)all year009
Iron, total [as Fe]daily maximumreport only (mg/L)all year009
Nickel, total [as Ni]daily maximumreport only (mg/L)all year009
Zinc, total [as Zn]daily maximumreport only (mg/L)all year009
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)all year009
pHdaily maximumreport only (SU)all year010
Solids, total suspendeddaily maximumreport only (mg/L)all year010
Oil & Greasedaily maximumreport only (mg/L)all year010
Copper, total [as Cu]daily maximumreport only (mg/L)all year010
Iron, total [as Fe]daily maximumreport only (mg/L)all year010
Nickel, total [as Ni]daily maximumreport only (mg/L)all year010
Zinc, total [as Zn]daily maximumreport only (mg/L)all year010
pHdaily maximumreport only (SU)all year012
Solids, total suspendeddaily maximumreport only (mg/L)all year012
Oil & Greasedaily maximumreport only (mg/L)all year012
Copper, total [as Cu]daily maximumreport only (mg/L)all year012
Iron, total [as Fe]daily maximumreport only (mg/L)all year012
Nickel, total [as Ni]daily maximumreport only (mg/L)all year012
Zinc, total [as Zn]daily maximumreport only (mg/L)all year012
pHdaily maximumreport only (SU)all year013
Solids, total suspendeddaily maximumreport only (mg/L)all year013
Oil & Greasedaily maximumreport only (mg/L)all year013
Copper, total [as Cu]daily maximumreport only (mg/L)all year013
Iron, total [as Fe]daily maximumreport only (mg/L)all year013
Nickel, total [as Ni]daily maximumreport only (mg/L)all year013
Zinc, total [as Zn]daily maximumreport only (mg/L)all year013
pHdaily maximumreport only (SU)all year014
Solids, total suspendeddaily maximumreport only (mg/L)all year014
Oil & Greasedaily maximumreport only (mg/L)all year014
Copper, total [as Cu]daily maximumreport only (mg/L)all year014
Iron, total [as Fe]daily maximumreport only (mg/L)all year014
Nickel, total [as Ni]daily maximumreport only (mg/L)all year014
Zinc, total [as Zn]daily maximumreport only (mg/L)all year014
pHdaily maximumreport only (SU)all year015
Solids, total suspendeddaily maximumreport only (mg/L)all year015
Oil & Greasedaily maximumreport only (mg/L)all year015
Copper, total [as Cu]daily maximumreport only (mg/L)all year015
Iron, total [as Fe]daily maximumreport only (mg/L)all year015
Nickel, total [as Ni]daily maximumreport only (mg/L)all year015
Zinc, total [as Zn]daily maximumreport only (mg/L)all year015
pHdaily maximumreport only (SU)all year016
Solids, total suspendeddaily maximumreport only (mg/L)all year016
Oil & Greasedaily maximumreport only (mg/L)all year016
Copper, total [as Cu]daily maximumreport only (mg/L)all year016
Iron, total [as Fe]daily maximumreport only (mg/L)all year016
Nickel, total [as Ni]daily maximumreport only (mg/L)all year016
Zinc, total [as Zn]daily maximumreport only (mg/L)all year016
pHdaily maximumreport only (SU)all year017
Solids, total suspendeddaily maximumreport only (mg/L)all year017
Oil & Greasedaily maximumreport only (mg/L)all year017
Copper, total [as Cu]daily maximumreport only (mg/L)all year017
Iron, total [as Fe]daily maximumreport only (mg/L)all year017
Nickel, total [as Ni]daily maximumreport only (mg/L)all year017
Zinc, total [as Zn]daily maximumreport only (mg/L)all year017
pHdaily maximumreport only (SU)all year018
Solids, total suspendeddaily maximumreport only (mg/L)all year018
Oil & Greasedaily maximumreport only (mg/L)all year018
Copper, total [as Cu]daily maximumreport only (mg/L)all year018
Iron, total [as Fe]daily maximumreport only (mg/L)all year018
Nickel, total [as Ni]daily maximumreport only (mg/L)all year018
Zinc, total [as Zn]daily maximumreport only (mg/L)all year018
pHdaily maximumreport only (SU)all year019
Solids, total suspendeddaily maximumreport only (mg/L)all year019
Oil & Greasedaily maximumreport only (mg/L)all year019
Copper, total [as Cu]daily maximumreport only (mg/L)all year019
Iron, total [as Fe]daily maximumreport only (mg/L)all year019
Nickel, total [as Ni]daily maximumreport only (mg/L)all year019
Zinc, total [as Zn]daily maximumreport only (mg/L)all year019
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)all year019
pHdaily maximumreport only (SU)all year020
Solids, total suspendeddaily maximumreport only (mg/L)all year020
Oil & Greasedaily maximumreport only (mg/L)all year020
Copper, total [as Cu]daily maximumreport only (mg/L)all year020
Iron, total [as Fe]daily maximumreport only (mg/L)all year020
Nickel, total [as Ni]daily maximumreport only (mg/L)all year020
Zinc, total [as Zn]daily maximumreport only (mg/L)all year020
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)all year020
pHdaily maximumreport only (SU)all year021
Solids, total suspendeddaily maximumreport only (mg/L)all year021
Oil & Greasedaily maximumreport only (mg/L)all year021
Copper, total [as Cu]daily maximumreport only (mg/L)all year021
Iron, total [as Fe]daily maximumreport only (mg/L)all year021
Nickel, total [as Ni]daily maximumreport only (mg/L)all year021
Zinc, total [as Zn]daily maximumreport only (mg/L)all year021
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)all year021
pHdaily maximumreport only (SU)all year022
Solids, total suspendeddaily maximumreport only (mg/L)all year022
Oil & Greasedaily maximumreport only (mg/L)all year022
Copper, total [as Cu]daily maximumreport only (mg/L)all year022
Iron, total [as Fe]daily maximumreport only (mg/L)all year022
Nickel, total [as Ni]daily maximumreport only (mg/L)all year022
Zinc, total [as Zn]daily maximumreport only (mg/L)all year022
pHdaily maximumreport only (SU)all year025
Solids, total suspendeddaily maximumreport only (mg/L)all year025
Oil & Greasedaily maximumreport only (mg/L)all year025
Copper, total [as Cu]daily maximumreport only (mg/L)all year025
Iron, total [as Fe]daily maximumreport only (mg/L)all year025
Nickel, total [as Ni]daily maximumreport only (mg/L)all year025
Zinc, total [as Zn]daily maximumreport only (mg/L)all year025
pHdaily maximumreport only (SU)all year026
Solids, total suspendeddaily maximumreport only (mg/L)all year026
Oil & Greasedaily maximumreport only (mg/L)all year026
Copper, total [as Cu]daily maximumreport only (mg/L)all year026
Iron, total [as Fe]daily maximumreport only (mg/L)all year026
Nickel, total [as Ni]daily maximumreport only (mg/L)all year026
Zinc, total [as Zn]daily maximumreport only (mg/L)all year026
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)all year026
pHdaily maximumreport only (SU)all year027
Solids, total suspendeddaily maximumreport only (mg/L)all year027
Oil & Greasedaily maximumreport only (mg/L)all year027
Copper, total [as Cu]daily maximumreport only (mg/L)all year027
Iron, total [as Fe]daily maximumreport only (mg/L)all year027
Nickel, total [as Ni]daily maximumreport only (mg/L)all year027
Zinc, total [as Zn]daily maximumreport only (mg/L)all year027
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)all year027
pHdaily maximumreport only (SU)all year028
Solids, total suspendeddaily maximumreport only (mg/L)all year028
Oil & Greasedaily maximumreport only (mg/L)all year028
Copper, total [as Cu]daily maximumreport only (mg/L)all year028
Iron, total [as Fe]daily maximumreport only (mg/L)all year028
Nickel, total [as Ni]daily maximumreport only (mg/L)all year028
Zinc, total [as Zn]daily maximumreport only (mg/L)all year028
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)all year028
pHdaily maximumreport only (SU)all year029
Solids, total suspendeddaily maximumreport only (mg/L)all year029
Oil & Greasedaily maximumreport only (mg/L)all year029
Copper, total [as Cu]daily maximumreport only (mg/L)all year029
Iron, total [as Fe]daily maximumreport only (mg/L)all year029
Nickel, total [as Ni]daily maximumreport only (mg/L)all year029
Zinc, total [as Zn]daily maximumreport only (mg/L)all year029
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)all year029
pHdaily maximumreport only (SU)all year030
Solids, total suspendeddaily maximumreport only (mg/L)all year030
Oil & Greasedaily maximumreport only (mg/L)all year030
Copper, total [as Cu]daily maximumreport only (mg/L)all year030
Iron, total [as Fe]daily maximumreport only (mg/L)all year030
Nickel, total [as Ni]daily maximumreport only (mg/L)all year030
Zinc, total [as Zn]daily maximumreport only (mg/L)all year030
pHdaily maximumreport only (SU)all year031
Solids, total suspendeddaily maximumreport only (mg/L)all year031
Oil & Greasedaily maximumreport only (mg/L)all year031
Copper, total [as Cu]daily maximumreport only (mg/L)all year031
Iron, total [as Fe]daily maximumreport only (mg/L)all year031
Nickel, total [as Ni]daily maximumreport only (mg/L)all year031
Zinc, total [as Zn]daily maximumreport only (mg/L)all year031
pHdaily maximumreport only (SU)all year032
Solids, total suspendeddaily maximumreport only (mg/L)all year032
Oil & Greasedaily maximumreport only (mg/L)all year032
Copper, total [as Cu]daily maximumreport only (mg/L)all year032
Iron, total [as Fe]daily maximumreport only (mg/L)all year032
Nickel, total [as Ni]daily maximumreport only (mg/L)all year032
Zinc, total [as Zn]daily maximumreport only (mg/L)all year032
pHdaily maximumreport only (SU)all year033
Solids, total suspendeddaily maximumreport only (mg/L)all year033
Oil & Greasedaily maximumreport only (mg/L)all year033
Copper, total [as Cu]daily maximumreport only (mg/L)all year033
Iron, total [as Fe]daily maximumreport only (mg/L)all year033
Nickel, total [as Ni]daily maximumreport only (mg/L)all year033
Zinc, total [as Zn]daily maximumreport only (mg/L)all year033
pHminimum≥ 6 SUall year901
pHinstantaneous maximum≤ 9 SUall year901
Solids, total suspendedmonthly average≤ 30 mg/Lall year901
Solids, total suspendeddaily maximum≤ 100 mg/Lall year901
Oil & Greasemonthly average≤ 15 mg/Lall year901
Oil & Greasedaily maximum≤ 20 mg/Lall year901
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year901
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year901

How strict are these limits?

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

Same industry: the 63 Electric Services 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/PA0009733 · MCP: https://passage-data.com/mcp