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Internal Combustion Engines, major discharger, Mossville, Illinois. NPDES permit IL0001414 expired Aug 31, 2026; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 20 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 40 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 414 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 828 lb/d | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 25 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 517 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 1034 lb/d | all year | 001 |
| Cyanide, total [as CN] | annual average | ≤ .1 mg/L | all year | 001 |
| Cyanide, total [as CN] | annual maximum | ≤ .2 mg/L | all year | 001 |
| Cyanide, total [as CN] | annual average | ≤ 1.8 lb/d | all year | 001 |
| Cyanide, total [as CN] | annual maximum | ≤ 3.6 lb/d | all year | 001 |
| Fluoride, total [as F] | annual average | report only (mg/L) | all year | 001 |
| Fluoride, total [as F] | annual maximum | report only (mg/L) | all year | 001 |
| Arsenic, total [as As] | annual average | report only (mg/L) | all year | 001 |
| Arsenic, total [as As] | annual maximum | report only (mg/L) | all year | 001 |
| Barium, total [as Ba] | annual average | report only (mg/L) | all year | 001 |
| Barium, total [as Ba] | annual maximum | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | annual average | ≤ .15 mg/L | all year | 001 |
| Cadmium, total [as Cd] | annual maximum | ≤ .3 mg/L | all year | 001 |
| Cadmium, total [as Cd] | annual average | ≤ 2.7 lb/d | all year | 001 |
| Cadmium, total [as Cd] | annual maximum | ≤ 5.4 lb/d | all year | 001 |
| Chromium, total [as Cr] | 30-day average | ≤ 1 mg/L | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ 2 mg/L | all year | 001 |
| Chromium, total [as Cr] | 30-day average | ≤ 18 lb/d | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ 36 lb/d | all year | 001 |
| Copper, total [as Cu] | annual average | ≤ .08 mg/L | all year | 001 |
| Copper, total [as Cu] | annual maximum | ≤ .08 mg/L | all year | 001 |
| Copper, total [as Cu] | annual average | ≤ 1.7 lb/d | all year | 001 |
| Copper, total [as Cu] | annual maximum | ≤ 1.7 lb/d | all year | 001 |
| Iron, total [as Fe] | 30-day average | ≤ 2 mg/L | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 4 mg/L | all year | 001 |
| Iron, total [as Fe] | 30-day average | ≤ 36 lb/d | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 72 lb/d | all year | 001 |
| Lead, total [as Pb] | annual average | ≤ .2 mg/L | all year | 001 |
| Lead, total [as Pb] | annual maximum | ≤ .4 mg/L | all year | 001 |
| Lead, total [as Pb] | annual average | ≤ 3.6 lb/d | all year | 001 |
| Lead, total [as Pb] | annual maximum | ≤ 7.2 lb/d | all year | 001 |
| Manganese, total [as Mn] | annual average | report only (mg/L) | all year | 001 |
| Manganese, total [as Mn] | annual maximum | report only (mg/L) | all year | 001 |
| Thallium, total [as Tl] | annual average | report only (ug/L) | all year | 001 |
| Thallium, total [as Tl] | annual maximum | report only (ug/L) | all year | 001 |
| Nickel, total [as Ni] | annual average | ≤ 1 mg/L | all year | 001 |
| Nickel, total [as Ni] | annual maximum | ≤ 2 mg/L | all year | 001 |
| Nickel, total [as Ni] | annual average | ≤ 18 lb/d | all year | 001 |
| Nickel, total [as Ni] | annual maximum | ≤ 36 lb/d | all year | 001 |
| Silver, total [as Ag] | annual average | ≤ .1 mg/L | all year | 001 |
| Silver, total [as Ag] | annual maximum | ≤ .2 mg/L | all year | 001 |
| Silver, total [as Ag] | annual average | ≤ 1.8 lb/d | all year | 001 |
| Silver, total [as Ag] | annual maximum | ≤ 3.6 lb/d | all year | 001 |
| Zinc, total [as Zn] | 30-day average | ≤ 1 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 2 mg/L | all year | 001 |
| Zinc, total [as Zn] | 30-day average | ≤ 10 lb/d | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 21 lb/d | all year | 001 |
| Antimony, total [as Sb] | annual average | report only (ug/L) | all year | 001 |
| Antimony, total [as Sb] | annual maximum | report only (ug/L) | all year | 001 |
| Selenium, total [as Se] | annual average | report only (mg/L) | all year | 001 |
| Selenium, total [as Se] | annual 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 | ≤ 30 mg/L | all year | 001 |
| Oil and grease | 30-day average | ≤ 310 lb/d | all year | 001 |
| Oil and grease | daily maximum | ≤ 620 lb/d | all year | 001 |
| Phenolics, total recoverable | annual average | report only (mg/L) | all year | 001 |
| Phenolics, total recoverable | annual 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] | annual average | report only (ug/L) | all year | 001 |
| Mercury, total [as Hg] | annual maximum | report only (ug/L) | all year | 001 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | May–Oct | 001 |
| Organics, total toxic [TTO] | annual maximum | ≤ 1.44 mg/L | all year | 001 |
| Organics, total toxic [TTO] | annual maximum | ≤ 29.8 lb/d | all year | 001 |
| Cyanide, total [as CN] | annual average | report only (ug/L) | all year | 003 |
| Cyanide, total [as CN] | annual maximum | report only (ug/L) | all year | 003 |
| Cadmium, total [as Cd] | annual average | report only (mg/L) | all year | 003 |
| Cadmium, total [as Cd] | annual maximum | report only (mg/L) | all year | 003 |
| Chromium, total [as Cr] | annual average | report only (mg/L) | all year | 003 |
| Chromium, total [as Cr] | annual maximum | report only (mg/L) | all year | 003 |
| Copper, total [as Cu] | annual average | report only (mg/L) | all year | 003 |
| Copper, total [as Cu] | annual maximum | report only (mg/L) | all year | 003 |
| Iron, total [as Fe] | annual average | report only (mg/L) | all year | 003 |
| Iron, total [as Fe] | annual maximum | report only (mg/L) | all year | 003 |
| Lead, total [as Pb] | annual average | report only (mg/L) | all year | 003 |
| Lead, total [as Pb] | annual maximum | report only (mg/L) | all year | 003 |
| Manganese, total [as Mn] | annual average | report only (mg/L) | all year | 003 |
| Manganese, total [as Mn] | annual maximum | report only (mg/L) | all year | 003 |
| Nickel, total [as Ni] | annual average | report only (mg/L) | all year | 003 |
| Nickel, total [as Ni] | annual maximum | report only (mg/L) | all year | 003 |
| Silver, total [as Ag] | annual average | report only (mg/L) | all year | 003 |
| Silver, total [as Ag] | annual maximum | report only (mg/L) | all year | 003 |
| Zinc, total [as Zn] | annual average | report only (mg/L) | all year | 003 |
| Zinc, total [as Zn] | annual maximum | report only (mg/L) | all year | 003 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 11 Industrial and Commercial Machinery and Computer Equipment permits in Illinois.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/IL0001414 · MCP: https://passage-data.com/mcp