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Fabricated Structural Metal, Winona, Mississippi. NPDES permit MSP092486, in force until Jul 31, 2031. Last 12 months: no values over a limit, 1 of 2 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Nickel, total recoverable | monthly average | ≤ 2.38 mg/L | all year |
| Nickel, total recoverable | daily maximum | ≤ 3.98 mg/L | all year |
| Nickel, total recoverable | monthly average | ≤ .0298 lb/d | all year |
| Nickel, total recoverable | daily maximum | ≤ .0498 lb/d | all year |
| Silver total recoverable | monthly average | ≤ .24 mg/L | all year |
| Silver total recoverable | daily maximum | ≤ .43 mg/L | all year |
| Silver total recoverable | monthly average | ≤ .003 lb/d | all year |
| Silver total recoverable | daily maximum | ≤ .0054 lb/d | all year |
| Zinc, total recoverable | monthly average | ≤ 1.48 mg/L | all year |
| Zinc, total recoverable | daily maximum | ≤ 2.61 mg/L | all year |
| Zinc, total recoverable | monthly average | ≤ .0185 lb/d | all year |
| Zinc, total recoverable | daily maximum | ≤ .0327 lb/d | all year |
| Cadmium, total recoverable | monthly average | ≤ .07 mg/L | all year |
| Cadmium, total recoverable | daily maximum | ≤ .11 mg/L | all year |
| Cadmium, total recoverable | monthly average | ≤ .0009 lb/d | all year |
| Cadmium, total recoverable | daily maximum | ≤ .0014 lb/d | all year |
| Lead, total recoverable | monthly average | ≤ .43 mg/L | all year |
| Lead, total recoverable | daily maximum | ≤ .69 mg/L | all year |
| Lead, total recoverable | monthly average | ≤ .0054 lb/d | all year |
| Lead, total recoverable | daily maximum | ≤ .0086 lb/d | all year |
| Chromium, total recoverable | monthly average | ≤ 1.71 mg/L | all year |
| Chromium, total recoverable | daily maximum | ≤ 2.77 mg/L | all year |
| Chromium, total recoverable | monthly average | ≤ .0214 lb/d | all year |
| Chromium, total recoverable | daily maximum | ≤ .0347 lb/d | all year |
| Copper, total recoverable | monthly average | ≤ 2.07 mg/L | all year |
| Copper, total recoverable | daily maximum | ≤ 3.38 mg/L | all year |
| Copper, total recoverable | monthly average | ≤ .0259 lb/d | all year |
| Copper, total recoverable | daily maximum | ≤ .0423 lb/d | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .0015 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Total toxic organics [TTO] [40 CFR433] | daily maximum | ≤ 2.13 mg/L | all year |
| Cyanide, total recoverable | monthly average | ≤ .65 mg/L | all year |
| Cyanide, total recoverable | daily maximum | ≤ 1.2 mg/L | all year |
| Cyanide, total recoverable | monthly average | ≤ .0081 lb/d | all year |
| Cyanide, total recoverable | daily maximum | ≤ .015 lb/d | all year |
Cited limits by parameter: Mississippi's rules and the federal ones.
Same industry: the 7 Fabricated Metal Products permits in Mississippi.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MSP092486 · MCP: https://passage-data.com/mcp