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Plating And Polishing, Howell, Michigan. NPDES permit MI0058204 expired Oct 1, 2019; its limits still apply. Last 12 months: no values over a limit, 190 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Rainfall duration | daily maximum | report only (hr) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (lb/d) | all year | 001 |
| Chromium, hexavalent [as Cr] | monthly average | ≤ 11 ug/L | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ 15 ug/L | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ 32 ug/L | all year | 001 |
| Chromium, hexavalent [as Cr] | monthly average | report only (lb/d) | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (lb/d) | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (lb/d) | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (lb/d) | all year | 001 |
| Chromium, total [as Cr] | maximum monthly average | ≤ 130 ug/L | all year | 001 |
| Chromium, total [as Cr] | monthly average | ≤ 210 ug/L | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | monthly average | report only (lb/d) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (lb/d) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (lb/d) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (lb/d) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year | 001 |
| Rainfall | daily maximum | report only (in) | all year | 001 |
| Flow, in conduit or thru treatment plant | maximum 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 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Outfall observation,visual, y/n response | monthly total | report only (N=0;Y=1) | all year | 001 |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001A |
| pH | daily maximum | ≤ 9 SU | all year | 001A |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001A |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | all year | 001A |
| Cadmium, total [as Cd] | daily maximum | report only (lb/d) | all year | 001A |
| Chromium, hexavalent [as Cr] | monthly average | ≤ 11 ug/L | all year | 001A |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ 32 ug/L | all year | 001A |
| Chromium, hexavalent [as Cr] | monthly average | report only (lb/d) | all year | 001A |
| Chromium, hexavalent [as Cr] | daily maximum | report only (lb/d) | all year | 001A |
| Chromium, total [as Cr] | monthly average | ≤ 210 ug/L | all year | 001A |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 001A |
| Chromium, total [as Cr] | monthly average | report only (lb/d) | all year | 001A |
| Chromium, total [as Cr] | daily maximum | report only (lb/d) | all year | 001A |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year | 001A |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year | 001A |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001A |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001A |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 001A |
Cited limits by parameter: Michigan's rules and the federal ones.
Same industry: the 6 Fabricated Metal Products permits in Michigan.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MI0058204 · MCP: https://passage-data.com/mcp