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Dynegy Miami Fort LLC

Electric Services, major discharger, North Bend, Ohio. NPDES permit OH0009873 expired Dec 31, 2023; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (9 values), outfall 002 form A monthly (18 values), outfall 006 form A monthly (16 values), outfall 040 form A monthly (12 values), outfall 601 form A monthly (2 values), outfall 603 form A monthly (2 values), and 5 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 133 reports late

Limits in force (137)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Copper, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Copper, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
Oxidants, total residualdaily maximum≤ .05 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
Chlorine, total residualdaily maximum≤ .2 mg/Lall year001
Mercury, total low levelmonthly averagereport only (ng/L)Mar, Jun, Aug, Dec001
Mercury, total low leveldaily maximumreport only (ng/L)Mar, Jun, Aug, Dec001
Chlorination durationdaily maximum≤ 120 minall year001
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 97 mg/Lall year002
Solids, total suspendedmonthly average≤ 1404 kg/dall year002
Solids, total suspendeddaily maximum≤ 4542 kg/dall year002
Oil and grease, hexane extr methodmonthly average≤ 15 mg/Lall year002
Oil and grease, hexane extr methoddaily maximum≤ 20 mg/Lall year002
Oil and grease, hexane extr methodmonthly average≤ 702 kg/dall year002
Oil and grease, hexane extr methoddaily maximum≤ 936 kg/dall year002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec002
Hardness, total [as CaCO3]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec002
Hardness, total [as CaCO3]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec002
Arsenic, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec002
Arsenic, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec002
Selenium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec002
Selenium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec002
Boron, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec002
Boron, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec002
Copper, total recoverabledaily maximum≤ 86 ug/Lall year002
Copper, total recoverabledaily maximum≤ 4.03 kg/dall year002
Oxidants, total residualdaily maximum≤ .01 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
Chlorine, total residualdaily maximum≤ .038 mg/Lall year002
Mercury, total low levelmonthly averagereport only (ng/L)Mar, Jun, Aug, Dec002
Mercury, total low leveldaily maximumreport only (ng/L)Mar, Jun, Aug, Dec002
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)all year002
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)all year002
pHdaily minimum≥ 6 SUall year006
pHdaily maximum≤ 9 SUall year006
Solids, total suspendedmonthly average≤ 30 mg/Lall year006
Solids, total suspendeddaily maximum≤ 45 mg/Lall year006
Solids, total suspendedmonthly average≤ 7.9 kg/dall year006
Solids, total suspendeddaily maximum≤ 11.9 kg/dall year006
Hardness, total [as CaCO3]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec006
Hardness, total [as CaCO3]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec006
Copper, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec006
Copper, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec006
Turbidity [severity]monthly averagereport only (severity)all year006
Turbidity [severity]daily maximumreport only (severity)all year006
Coliform, fecal MF, MFC broth, 44.5 Cmonthly geometric mean≤ 1000 #/100mLJan, Feb, Mar, Apr, Nov, Dec006
Coliform, fecal MF, MFC broth, 44.5 Cdaily maximum≤ 2000 #/100mLJan, Feb, Mar, Apr, Nov, Dec006
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct006
E. coli, MTEC-MFweekly geometric mean≤ 240 MPN/100mLMay–Oct006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
Mercury, total low levelmonthly averagereport only (ng/L)Mar, Jun, Aug, Dec006
Mercury, total low leveldaily maximumreport only (ng/L)Mar, Jun, Aug, Dec006
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year006
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 40 mg/Lall year006
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6.6 kg/dall year006
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 10.6 kg/dall year006
Temperature, water deg. centigrademonthly averagereport only (deg C)all year040
Temperature, water deg. centigradedaily maximumreport only (deg C)all year040
pHdaily minimum≥ 6 SUall year040
pHdaily maximum≤ 9 SUall year040
Copper, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec040
Copper, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec040
Oxidants, total residualdaily maximum≤ .007 mg/Lall year040
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year040
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year040
Chlorine, total residualdaily maximum≤ .023 mg/Lall year040
Mercury, total low levelmonthly averagereport only (ng/L)all year040
Mercury, total low leveldaily maximumreport only (ng/L)all year040
Chlorination durationmonthly averagereport only (min)all year040
Chlorination durationdaily maximumreport only (min)all year040
Sludge waste from secondary clarifiersmonthly averagereport only (gal)Dec588
Sludge waste from secondary clarifiersdaily maximumreport only (gal)Dec588
Mercury, total recoverablemonthly averagereport only (ug/L)all year601
Mercury, total recoverabledaily maximumreport only (ug/L)all year601
Number of Eventsmonthly averagereport only (# exceed)all year603
Number of Eventsdaily maximumreport only (# exceed)all year603
Number of Eventsmonthly averagereport only (# exceed)all year604
Number of Eventsdaily maximumreport only (# exceed)all year604
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year608
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year608
Specific conductancemonthly averagereport only (umho/cm)all year608
Specific conductancedaily maximumreport only (umho/cm)all year608
pHdaily minimumreport only (SU)all year608
pHdaily maximumreport only (SU)all year608
Alkalinity, total [as CaCO3]monthly averagereport only (mg/L)all year608
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all year608
Solids, total suspendedmonthly average≤ 30 mg/Lall year608
Solids, total suspendeddaily maximum≤ 100 mg/Lall year608
Solids, total suspendedmonthly average≤ 24.6 kg/dall year608
Solids, total suspendeddaily maximum≤ 81.8 kg/dall year608
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec608
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec608
Chloride [as Cl]monthly averagereport only (mg/L)all year608
Chloride [as Cl]daily maximumreport only (mg/L)all year608
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year608
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year608
Fluoride, total [as F]monthly averagereport only (mg/L)all year608
Fluoride, total [as F]daily maximumreport only (mg/L)all year608
Arsenic, total [as As]monthly averagereport only (ug/L)all year608
Arsenic, total [as As]daily maximumreport only (ug/L)all year608
Boron, total [as B]monthly averagereport only (ug/L)all year608
Boron, total [as B]daily maximumreport only (ug/L)all year608
Manganese, total [as Mn]monthly averagereport only (ug/L)all year608
Manganese, total [as Mn]daily maximumreport only (ug/L)all year608
Selenium, total [as Se]monthly averagereport only (ug/L)all year608
Selenium, total [as Se]daily maximumreport only (ug/L)all year608
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year608
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year608
Mercury, total low levelmonthly average≤ 450 ng/Lall year608
Mercury, total low levelmonthly average≤ .000368 kg/dall year608
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)all year608
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)all year608
Solids, total suspendedmonthly average≤ 30 mg/LMar, Jun, Aug, Dec611
Solids, total suspendeddaily maximum≤ 100 mg/LMar, Jun, Aug, Dec611
Oil and grease, hexane extr methodmonthly average≤ 15 mg/LMar, Jun, Aug, Dec611
Oil and grease, hexane extr methoddaily maximum≤ 20 mg/LMar, Jun, Aug, Dec611
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year611
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year611
Copper, total [as Cu]monthly average≤ 1000 ug/Lall year612
Copper, total [as Cu]daily maximum≤ 1000 ug/Lall year612
Iron, total [as Fe]monthly average≤ 1000 ug/Lall year612
Iron, total [as Fe]daily maximum≤ 1000 ug/Lall year612
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year612
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year612
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year801
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year801

How strict are these limits?

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

Same industry: the 31 Electric Services permits in Ohio.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0009873 · MCP: https://passage-data.com/mcp