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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.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 001 |
| Oxidants, total residual | daily maximum | ≤ .05 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 001 |
| Mercury, total low level | monthly average | report only (ng/L) | Mar, Jun, Aug, Dec | 001 |
| Mercury, total low level | daily maximum | report only (ng/L) | Mar, Jun, Aug, Dec | 001 |
| Chlorination duration | daily maximum | ≤ 120 min | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 97 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 1404 kg/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 4542 kg/d | all year | 002 |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 002 |
| Oil and grease, hexane extr method | monthly average | ≤ 702 kg/d | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | ≤ 936 kg/d | all year | 002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 002 |
| Arsenic, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 002 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 002 |
| Selenium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 002 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 002 |
| Boron, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 002 |
| Boron, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 002 |
| Copper, total recoverable | daily maximum | ≤ 86 ug/L | all year | 002 |
| Copper, total recoverable | daily maximum | ≤ 4.03 kg/d | all year | 002 |
| Oxidants, total residual | daily maximum | ≤ .01 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | daily maximum | ≤ .038 mg/L | all year | 002 |
| Mercury, total low level | monthly average | report only (ng/L) | Mar, Jun, Aug, Dec | 002 |
| Mercury, total low level | daily maximum | report only (ng/L) | Mar, Jun, Aug, Dec | 002 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 002 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 006 |
| pH | daily maximum | ≤ 9 SU | all year | 006 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 006 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 006 |
| Solids, total suspended | monthly average | ≤ 7.9 kg/d | all year | 006 |
| Solids, total suspended | daily maximum | ≤ 11.9 kg/d | all year | 006 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 006 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 006 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 006 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 006 |
| Turbidity [severity] | monthly average | report only (severity) | all year | 006 |
| Turbidity [severity] | daily maximum | report only (severity) | all year | 006 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | ≤ 1000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 006 |
| Coliform, fecal MF, MFC broth, 44.5 C | daily maximum | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 006 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | May–Oct | 006 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 240 MPN/100mL | May–Oct | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Mercury, total low level | monthly average | report only (ng/L) | Mar, Jun, Aug, Dec | 006 |
| Mercury, total low level | daily maximum | report only (ng/L) | Mar, Jun, Aug, Dec | 006 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 006 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 40 mg/L | all year | 006 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 6.6 kg/d | all year | 006 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 10.6 kg/d | all year | 006 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 040 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 040 |
| pH | daily minimum | ≥ 6 SU | all year | 040 |
| pH | daily maximum | ≤ 9 SU | all year | 040 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 040 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 040 |
| Oxidants, total residual | daily maximum | ≤ .007 mg/L | all year | 040 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 040 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 040 |
| Chlorine, total residual | daily maximum | ≤ .023 mg/L | all year | 040 |
| Mercury, total low level | monthly average | report only (ng/L) | all year | 040 |
| Mercury, total low level | daily maximum | report only (ng/L) | all year | 040 |
| Chlorination duration | monthly average | report only (min) | all year | 040 |
| Chlorination duration | daily maximum | report only (min) | all year | 040 |
| Sludge waste from secondary clarifiers | monthly average | report only (gal) | Dec | 588 |
| Sludge waste from secondary clarifiers | daily maximum | report only (gal) | Dec | 588 |
| Mercury, total recoverable | monthly average | report only (ug/L) | all year | 601 |
| Mercury, total recoverable | daily maximum | report only (ug/L) | all year | 601 |
| Number of Events | monthly average | report only (# exceed) | all year | 603 |
| Number of Events | daily maximum | report only (# exceed) | all year | 603 |
| Number of Events | monthly average | report only (# exceed) | all year | 604 |
| Number of Events | daily maximum | report only (# exceed) | all year | 604 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 608 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 608 |
| Specific conductance | monthly average | report only (umho/cm) | all year | 608 |
| Specific conductance | daily maximum | report only (umho/cm) | all year | 608 |
| pH | daily minimum | report only (SU) | all year | 608 |
| pH | daily maximum | report only (SU) | all year | 608 |
| Alkalinity, total [as CaCO3] | monthly average | report only (mg/L) | all year | 608 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 608 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 608 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 608 |
| Solids, total suspended | monthly average | ≤ 24.6 kg/d | all year | 608 |
| Solids, total suspended | daily maximum | ≤ 81.8 kg/d | all year | 608 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 608 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 608 |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year | 608 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 608 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 608 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 608 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | all year | 608 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 608 |
| Arsenic, total [as As] | monthly average | report only (ug/L) | all year | 608 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 608 |
| Boron, total [as B] | monthly average | report only (ug/L) | all year | 608 |
| Boron, total [as B] | daily maximum | report only (ug/L) | all year | 608 |
| Manganese, total [as Mn] | monthly average | report only (ug/L) | all year | 608 |
| Manganese, total [as Mn] | daily maximum | report only (ug/L) | all year | 608 |
| Selenium, total [as Se] | monthly average | report only (ug/L) | all year | 608 |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | 608 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 608 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 608 |
| Mercury, total low level | monthly average | ≤ 450 ng/L | all year | 608 |
| Mercury, total low level | monthly average | ≤ .000368 kg/d | all year | 608 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 608 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 608 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Mar, Jun, Aug, Dec | 611 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | Mar, Jun, Aug, Dec | 611 |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | Mar, Jun, Aug, Dec | 611 |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | Mar, Jun, Aug, Dec | 611 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 611 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 611 |
| Copper, total [as Cu] | monthly average | ≤ 1000 ug/L | all year | 612 |
| Copper, total [as Cu] | daily maximum | ≤ 1000 ug/L | all year | 612 |
| Iron, total [as Fe] | monthly average | ≤ 1000 ug/L | all year | 612 |
| Iron, total [as Fe] | daily maximum | ≤ 1000 ug/L | all year | 612 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 612 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 612 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 801 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 801 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 31 Electric Services permits in Ohio.
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Your permit document is the final word. As JSON: /api/v1/permits/OH0009873 · MCP: https://passage-data.com/mcp