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Soybean Oil Mills, Gibson City, Illinois. NPDES permit IL0035416, in force until Mar 31, 2031. Last 12 months: over a limit 20 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| April 2026 | Oxygen, dissolved [DO], minimum weekly average | 5.8 mg/L | ≥ 6.25 mg/L | 7% |
| April 2026 | Solids, total suspended, 30-day average | 28.4 mg/L | ≤ 12 mg/L | 137% |
| April 2026 | Solids, total suspended, 30-day average | 33.2 lb/d | ≤ 29 lb/d | 14% |
| April 2026 | Solids, total suspended, daily maximum | 42 mg/L | ≤ 24 mg/L | 75% |
| April 2026 | Solids, total suspended, daily maximum | 77.1 lb/d | ≤ 58 lb/d | 33% |
| May 2026 | BOD, 5-day, 20 deg. C, 30-day average | 28.2 mg/L | ≤ 10 mg/L | 182% |
| May 2026 | BOD, 5-day, 20 deg. C, 30-day average | 35.3 lb/d | ≤ 24.2 lb/d | 46% |
| May 2026 | BOD, 5-day, 20 deg. C, daily maximum | 33.2 mg/L | ≤ 20 mg/L | 66% |
| May 2026 | BOD, 5-day, 20 deg. C, daily maximum | 58.1 lb/d | ≤ 48.4 lb/d | 20% |
| May 2026 | Solids, total suspended, 30-day average | 17.2 mg/L | ≤ 12 mg/L | 43% |
| June 2026 | BOD, 5-day, 20 deg. C, 30-day average | 28 mg/L | ≤ 10 mg/L | 180% |
| June 2026 | BOD, 5-day, 20 deg. C, 30-day average | 37.4 lb/d | ≤ 24.2 lb/d | 55% |
| June 2026 | BOD, 5-day, 20 deg. C, daily maximum | 36.6 mg/L | ≤ 20 mg/L | 83% |
| June 2026 | BOD, 5-day, 20 deg. C, daily maximum | 97.7 lb/d | ≤ 48.4 lb/d | 102% |
| July 2026 | BOD, 5-day, 20 deg. C, 30-day average | 24.9 lb/d | ≤ 24.2 lb/d | 3% |
| July 2026 | BOD, 5-day, 20 deg. C, 30-day average | 33.2 mg/L | ≤ 10 mg/L | 232% |
| July 2026 | BOD, 5-day, 20 deg. C, daily maximum | 37.7 mg/L | ≤ 20 mg/L | 89% |
| August 2026 | BOD, 5-day, 20 deg. C, 30-day average | 24.4 mg/L | ≤ 10 mg/L | 144% |
| August 2026 | BOD, 5-day, 20 deg. C, daily maximum | 33.2 mg/L | ≤ 20 mg/L | 66% |
| August 2026 | Solids, total suspended, 30-day average | 16.5 mg/L | ≤ 12 mg/L | 38% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | monthly average minimum | ≥ 6 mg/L | Jan, Feb, Aug, Sep, Oct, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | minimum weekly average | ≥ 4.5 mg/L | Jan, Feb, Aug, Sep, Oct, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | minimum weekly average | ≥ 6.25 mg/L | Mar–Jul | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 4 mg/L | Jan, Feb, Aug, Sep, Oct, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | Mar–Jul | 001 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 10 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 20 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 24.2 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 48.4 lb/d | all year | 001 |
| pH | monthly minimum | ≥ 6.5 SU | all year | 001 |
| pH | monthly maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 12 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 24 mg/L | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 29 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 58 lb/d | all year | 001 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 30 mg/L | all year | 001 |
| Oil & Grease | 30-day average | ≤ 36.3 lb/d | all year | 001 |
| Oil & Grease | daily maximum | ≤ 72.6 lb/d | all year | 001 |
| Nitrogen, total [as N] | quarterly average | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, total [as N] | quarterly maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | quarterly average | report only (mg/L) | Jan, Apr, Jul, Oct | 001 |
| Phosphorus, total [as P] | quarterly maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 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 | ≤ 4.8 lb/d | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 9.7 lb/d | 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 | ≤ .05 mg/L | all year | 001 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | May–Oct | 001 |
| 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 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| 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 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 36 Food and Kindred Products permits in Illinois.
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On EPA ECHO: Facility report · DMR history
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