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Electric Services, major discharger, Joppa, Illinois. NPDES permit IL0004171, in force until Sep 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | monthly minimum | ≥ 6 SU | all year | 001 |
| pH | monthly maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 001 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | all year | 001 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 001 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 001 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 001 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 001 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 001 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 001 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 001 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 001 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 001 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 001 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 001 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 001 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 001 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 001 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 001 |
| Oil and grease | 30-day average | ≤ 15 mg/L | all year | 001 |
| Oil and grease | daily maximum | ≤ 20 mg/L | all year | 001 |
| Phenolics, total recoverable | daily maximum | report only (mg/L) | all year | 001 |
| Phenolics, total recoverable | daily maximum | report only (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 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 001 |
| pH | monthly minimum | ≥ 6 SU | all year | 010 |
| pH | monthly maximum | ≤ 9 SU | all year | 010 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 010 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 010 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | all year | 010 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 010 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 010 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 010 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 010 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 010 |
| Copper, total [as Cu] | 30-day average | ≤ .0153 mg/L | all year | 010 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 010 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 010 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 010 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 010 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 010 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 010 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 010 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 010 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 010 |
| Oil and grease | 30-day average | ≤ 15 mg/L | all year | 010 |
| Oil and grease | daily maximum | ≤ 20 mg/L | all year | 010 |
| Phenolics, total recoverable | daily maximum | report only (mg/L) | all year | 010 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 010 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 010 |
| Mercury, total [as Hg] | annual average | ≤ 12 ng/L | all year | 010 |
| Mercury, total [as Hg] | 30-day average | report only (ng/L) | all year | 010 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 010 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | all year | 011 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | all year | 011 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 011 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 011 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 011 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 011 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 011 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 011 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 011 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 011 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 011 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 011 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 011 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 011 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 011 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 011 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 011 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 011 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 011 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 011 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 011 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 011 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 011 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 011 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 011 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 011 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 011 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 011 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 011 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 011 |
| Phenolics, total recoverable | daily maximum | report only (mg/L) | all year | 011 |
| Phenolics, total recoverable | daily maximum | report only (mg/L) | all year | 011 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 011 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 011 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | all year | 012 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | all year | 012 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 012 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 012 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 012 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 012 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 012 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 012 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 012 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 012 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 012 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 012 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 012 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 012 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 012 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 012 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 012 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 012 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 012 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 012 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 012 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 012 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 012 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 012 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 012 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 012 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 012 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 012 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 012 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 012 |
| Phenolics, total recoverable | daily maximum | report only (mg/L) | all year | 012 |
| Phenolics, total recoverable | daily maximum | report only (mg/L) | all year | 012 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 012 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 012 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | all year | 013 |
| Cyanide, weak acid, dissociable | daily maximum | report only (ug/L) | all year | 013 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 013 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 013 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 013 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 013 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 013 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 013 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 013 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 013 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 013 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 013 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 013 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 013 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 013 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 013 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 013 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 013 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 013 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 013 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 013 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 013 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 013 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 013 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 013 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 013 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 013 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 013 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 013 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 013 |
| Phenolics, total recoverable | daily maximum | report only (mg/L) | all year | 013 |
| Phenolics, total recoverable | daily maximum | report only (mg/L) | all year | 013 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 013 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 013 |
| Oxygen, dissolved [DO] | monthly minimum | ≥ 6 mg/L | all year | 014 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 014 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 60 mg/L | all year | 014 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 25 lb/d | all year | 014 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 50 lb/d | all year | 014 |
| pH | monthly minimum | ≥ 6 SU | all year | 014 |
| pH | monthly maximum | ≤ 9 SU | all year | 014 |
| Solids, total suspended | 30-day average | ≤ 37 mg/L | all year | 014 |
| Solids, total suspended | daily maximum | ≤ 74 mg/L | all year | 014 |
| Solids, total suspended | 30-day average | ≤ 30 lb/d | all year | 014 |
| Solids, total suspended | daily maximum | ≤ 61 lb/d | all year | 014 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 014 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 014 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | May–Oct | 014 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 45 Electric Services permits in Illinois.
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On EPA ECHO: Facility report · DMR history
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