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Electric Services, major discharger, Indianapolis, Indiana. NPDES permit IN0004685, in force until Dec 31, 2028. Last 12 months: no values over a limit, 22 required values missing, 1 of 90 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 000 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Jan | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Feb | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Mar | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Jun | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Jul | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Aug | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Dec | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 61 deg F | Jan | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 63 deg F | Feb | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 71 deg F | Mar | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 93 deg F | Jun | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 95 deg F | Jul | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 95 deg F | Aug | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 71 deg F | Dec | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Apr | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 75 deg F | Apr | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Apr | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 78 deg F | Apr | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | May | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 83 deg F | May | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | May | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 93 deg F | May | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Sep | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 95 deg F | Sep | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Sep | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 93 deg F | Sep | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Oct | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 93 deg F | Oct | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Oct | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 87 deg F | Oct | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Nov | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 81 deg F | Nov | 000 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Nov | 000 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 78 deg F | Nov | 000 |
| Streamflow | monthly average | report only (MGD) | all year | 000 |
| Streamflow | daily maximum | report only (MGD) | all year | 000 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 000 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 000 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 000 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 000 |
| 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 |
| Chlorine, total residual [dsg. time] | daily maximum | ≤ 120 min/d | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 001 |
| Oxidants, total residual | monthly average | < .06 mg/L | all year | 001 |
| Oxidants, total residual | daily maximum | < .06 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 |
| Chlorine, total residual | monthly average | < .06 mg/L | all year | 001 |
| Chlorine, total residual | daily maximum | < .06 mg/L | all year | 001 |
| Chlorination frequency | daily maximum | ≤ 4 occur/d | all year | 001 |
| Chlorination duration | daily maximum | ≤ 40 min | all year | 001 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 001 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 002 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 002 |
| Chlorine, total residual [dsg. time] | daily maximum | ≤ 120 min/d | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 002 |
| Oxidants, total residual | monthly average | < .06 mg/L | all year | 002 |
| Oxidants, total residual | daily maximum | < .06 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 | ≤ .2 mg/L | all year | 002 |
| Chlorine, total residual | monthly average | < .06 mg/L | all year | 002 |
| Chlorine, total residual | daily maximum | < .06 mg/L | all year | 002 |
| Chlorination frequency | daily maximum | ≤ 4 occur/d | all year | 002 |
| Chlorination duration | daily maximum | ≤ 40 min | all year | 002 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 002 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 005 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 005 |
| Chlorine, total residual [dsg. time] | daily maximum | ≤ 120 min/d | all year | 005 |
| pH | daily minimum | ≥ 6 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 005 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 005 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 005 |
| Oxidants, total residual | monthly average | < .06 mg/L | all year | 005 |
| Oxidants, total residual | daily maximum | < .06 mg/L | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | 005 |
| Chlorine, total residual | monthly average | < .06 mg/L | all year | 005 |
| Chlorine, total residual | daily maximum | < .06 mg/L | all year | 005 |
| Chlorination frequency | daily maximum | ≤ 4 occur/d | all year | 005 |
| Chlorination duration | daily maximum | ≤ 40 min | all year | 005 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 005 |
| pH | daily minimum | ≥ 6 SU | all year | 006 |
| pH | daily maximum | ≤ 9 SU | all year | 006 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 006 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 006 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 006 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 006 |
| Iron, total recoverable | monthly average | report only (mg/L) | all year | 006 |
| Iron, total recoverable | daily maximum | report only (mg/L) | all year | 006 |
| Selenium, total recoverable | monthly average | report only (mg/L) | all year | 006 |
| Selenium, total recoverable | daily maximum | report only (mg/L) | all year | 006 |
| Zinc, total recoverable | monthly average | report only (mg/L) | all year | 006 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | all year | 006 |
| Cadmium, total recoverable | monthly average | report only (mg/L) | all year | 006 |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | all year | 006 |
| Chromium, total recoverable | monthly average | report only (mg/L) | all year | 006 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | all year | 006 |
| Copper, total recoverable | monthly average | report only (mg/L) | all year | 006 |
| Copper, total recoverable | daily maximum | report only (mg/L) | all year | 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 |
| Chlorine, total residual | monthly average | report only (mg/L) | all year | 006 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 006 |
| Mercury, total recoverable | monthly average | report only (ng/L) | Feb, Apr, Jun, Aug, Oct, Dec | 006 |
| Mercury, total recoverable | daily maximum | report only (ng/L) | Feb, Apr, Jun, Aug, Oct, Dec | 006 |
| Flow, total | monthly total | report only (Mgal/mo) | all year | 006 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 7.3 tox acute | Feb, Aug | 008 |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 7.3 tox acute | Mar, Sep | 008 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 30.3 tox chronic | Feb, Aug | 008 |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 30.3 tox chronic | Mar, Sep | 008 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 7.3 tox acute | Feb, Aug | 008 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 7.3 tox acute | Mar, Sep | 008 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 30.3 tox chronic | Feb, Aug | 008 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 30.3 tox chronic | Mar, Sep | 008 |
| pH | daily maximum | report only (SU) | Jun, Dec | SW01 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jun, Dec | SW01 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Jun, Dec | SW01 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | SW01 |
| Selenium, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW01 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW01 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW01 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jun, Dec | SW01 |
| Storm water flow | daily maximum | report only (MGD) | Jun, Dec | SW01 |
| pH | daily maximum | report only (SU) | Jun, Dec | SW04 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jun, Dec | SW04 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Jun, Dec | SW04 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | SW04 |
| Selenium, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW04 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW04 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW04 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jun, Dec | SW04 |
| Storm water flow | daily maximum | report only (MGD) | Jun, Dec | SW04 |
| pH | daily maximum | report only (SU) | Jun, Dec | SW07 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jun, Dec | SW07 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Jun, Dec | SW07 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | SW07 |
| Selenium, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW07 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW07 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW07 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jun, Dec | SW07 |
| Storm water flow | daily maximum | report only (MGD) | Jun, Dec | SW07 |
| pH | daily maximum | report only (SU) | Jun, Dec | SW08 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jun, Dec | SW08 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Jun, Dec | SW08 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | SW08 |
| Selenium, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW08 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW08 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW08 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jun, Dec | SW08 |
| Storm water flow | daily maximum | report only (MGD) | Jun, Dec | SW08 |
| pH | daily maximum | report only (SU) | Jun, Dec | SW12 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jun, Dec | SW12 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Jun, Dec | SW12 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | SW12 |
| Selenium, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW12 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW12 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW12 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jun, Dec | SW12 |
| Storm water flow | daily maximum | report only (MGD) | Jun, Dec | SW12 |
| pH | daily maximum | report only (SU) | Jun, Dec | SW14 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jun, Dec | SW14 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Jun, Dec | SW14 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | Jun, Dec | SW14 |
| Selenium, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW14 |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW14 |
| Copper, total recoverable | daily maximum | report only (mg/L) | Jun, Dec | SW14 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | Jun, Dec | SW14 |
| Storm water flow | daily maximum | report only (MGD) | Jun, Dec | SW14 |
Cited limits by parameter: Indiana's rules and the federal ones.
Same industry: the 30 Electric Services permits in Indiana.
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