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Crushed And Broken Limestone, Athens, Illinois. NPDES permit IL0024155 expired Oct 31, 2026. Last 12 months: over a limit 9 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | BOD, carbonaceous [5 day, 20 C], 30-day average | 12 mg/L | ≤ 10 mg/L | 20% |
| November 2025 | Coliform, fecal general, daily maximum | 613 #/100mL | ≤ 400 #/100mL | 53% |
| January 2026 | BOD, carbonaceous [5 day, 20 C], 30-day average | 12 mg/L | ≤ 10 mg/L | 20% |
| February 2026 | Coliform, fecal general, daily maximum | 461 #/100mL | ≤ 400 #/100mL | 15% |
| February 2026 | Solids, total suspended, 30-day average | 13 mg/L | ≤ 12 mg/L | 8% |
| March 2026 | Nitrogen, ammonia total [as N], 30-day average | 2.5 mg/L | ≤ 1.5 mg/L | 67% |
| March 2026 | Nitrogen, ammonia total [as N], daily maximum | 5.4 mg/L | ≤ 5.1 mg/L | 6% |
| May 2026 | Nitrogen, ammonia total [as N], daily maximum | 6.1 mg/L | ≤ 5.1 mg/L | 20% |
| June 2026 | Coliform, fecal general, daily maximum | 866 #/100mL | ≤ 400 #/100mL | 117% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 35 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Offensive Conditions | value | report only (N=0;Y=1) | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | 30-day average | ≤ 12 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 24 mg/L | all year | 003 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.5 mg/L | Mar, Apr, May, Sep, Oct | 003 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.3 mg/L | Jun–Aug | 003 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 3.1 mg/L | Jan, Feb, Nov, Dec | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5.1 mg/L | Mar, Apr, May, Sep, Oct | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7.8 mg/L | Jun–Aug | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5 mg/L | Jan, Feb, Nov, Dec | 003 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 3.3 mg/L | Jun–Aug | 003 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 3.8 mg/L | Mar, Apr, May, Sep, Oct | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ .05 mg/L | all year | 003 |
| Offensive Conditions | maximum | report only (N=0;Y=1) | all year | 003 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | 30-day average | ≤ 10 mg/L | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 20 mg/L | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 004 |
| pH | maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | 30-day average | ≤ 35 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Offensive Conditions | value | report only (N=0;Y=1) | all year | 004 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 24 Mining and Quarrying of Nonmetallic Minerals permits in Illinois.
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On EPA ECHO: Facility report · DMR history
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