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Nonmetallic Mineral Products, Harvey, Illinois. NPDES permit IL0063649 expired Aug 31, 2026; its limits still apply. Last 12 months: over a limit 2 times (last March 2026), 4 required values missing, 2 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| February 2026 | Zinc, total [as Zn], daily maximum | 3.47 mg/L | ≤ 1.84 mg/L | 89% |
| March 2026 | Zinc, total [as Zn], daily maximum | 3.3 mg/L | ≤ 1.84 mg/L | 79% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | monthly minimum | report only (SU) | all year | 001 |
| pH | monthly minimum | report only (SU) | all year | 001 |
| pH | monthly maximum | report only (SU) | all year | 001 |
| pH | monthly maximum | report only (SU) | all year | 001 |
| Oil & Grease | 30-day average | report only (mg/L) | all year | 001 |
| Oil & Grease | 30-day average | report only (mg/L) | all year | 001 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 001 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | 30-day average | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | 30-day average | 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 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.15 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.15 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.84 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.84 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 | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| pH | monthly minimum | report only (SU) | all year | 002 |
| pH | monthly minimum | report only (SU) | all year | 002 |
| pH | monthly maximum | report only (SU) | all year | 002 |
| pH | monthly maximum | report only (SU) | all year | 002 |
| Oil & Grease | 30-day average | report only (mg/L) | all year | 002 |
| Oil & Grease | 30-day average | report only (mg/L) | all year | 002 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 002 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 002 |
| Iron, total [as Fe] | 30-day average | report only (mg/L) | all year | 002 |
| Iron, total [as Fe] | 30-day average | report only (mg/L) | all year | 002 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 002 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 002 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.15 mg/L | all year | 002 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.15 mg/L | all year | 002 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.84 mg/L | all year | 002 |
| Zinc, total [as Zn] | daily maximum | ≤ 1.84 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 | 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 | daily maximum | report only (MGD) | all year | 002 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 11 Stone, Clay, Glass and Concrete Products permits in Illinois.
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On EPA ECHO: Facility report · DMR history
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