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Secondary Nonferrous Metals, major discharger, Forest City, Missouri. NPDES permit MO0101702 expired May 31, 2024; its limits still apply. Last 12 months: no values over a limit, 5 of 76 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | report only (SU) | all year | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 46.2 lb/d | all year | 001 |
| Solids, total suspended | monthly average | ≤ 22.4 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 22.9 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 8.94 lb/d | all year | 001 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Arsenic, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Arsenic, total recoverable | daily maximum | ≤ 1.66 lb/d | all year | 001 |
| Arsenic, total recoverable | monthly average | ≤ .68 lb/d | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ 1.22 lb/d | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ .48 lb/d | all year | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Lead, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Lead, total recoverable | daily maximum | ≤ .33 lb/d | all year | 001 |
| Lead, total recoverable | monthly average | ≤ .15 lb/d | all year | 001 |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Antimony, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Antimony, total recoverable | daily maximum | ≤ 2.3 lb/d | all year | 001 |
| Antimony, total recoverable | monthly average | ≤ 1.01 lb/d | 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 | monthly average | report only (MGD) | all year | 001 |
| Toxicity [acute], Ceriodaphnia dubia | value | ≤ 3.3 toxic | all year | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | value | ≤ 3.3 toxic | all year | 001 |
| pH range excursions, > 60 minutes | value | ≤ 60 occur/d | all year | 001 |
| pH range excursions, monthly total accum | cumulative total | ≤ 446 min | all year | 001 |
| pH | minimum | report only (SU) | all year | 003 |
| pH | maximum | report only (SU) | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 41 mg/L | all year | 003 |
| Solids, total suspended | monthly average | ≤ 16 mg/L | all year | 003 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Arsenic, total recoverable | monthly average | report only (ug/L) | all year | 003 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 003 |
| Cadmium, total recoverable | daily maximum | ≤ 148.3 ug/L | all year | 003 |
| Cadmium, total recoverable | monthly average | ≤ 50.6 ug/L | all year | 003 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Lead, total recoverable | monthly average | report only (ug/L) | all year | 003 |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Antimony, total recoverable | monthly average | report only (ug/L) | 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 | 003 |
| pH range excursions, > 60 minutes | value | ≤ 60 occur/d | all year | 003 |
| pH range excursions, monthly total accum | cumulative total | ≤ 446 min | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 004 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 004 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Rainfall | total | report only (in) | all year | 004 |
| Rainfall | monthly total | report only (in) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 006 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 006 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 006 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 006 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 006 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 006 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 006 |
| Rainfall | total | report only (in) | all year | 006 |
| Rainfall | monthly total | report only (in) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 007 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 007 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Rainfall | total | report only (in) | all year | 007 |
| Rainfall | monthly total | report only (in) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 5 Primary Metal Industries permits in Missouri.
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