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Special Trade Contractors, North Muskegon, Michigan. NPDES permit MI0053309 expired Oct 1, 2017; its limits still apply. Last 12 months: no values over a limit, 10 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | ≤ .5 mg/L | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | ≤ 7 lb/d | all year |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year |
| 1,2-Dichloroethane | monthly average | report only (mg/L) | all year |
| 1,2-Dichloroethane | daily maximum | report only (mg/L) | all year |
| Benzene | monthly average | report only (mg/L) | all year |
| Benzene | daily maximum | report only (mg/L) | all year |
| 1,1-Dichloroethane | monthly average | report only (mg/L) | all year |
| 1,1-Dichloroethane | daily maximum | report only (mg/L) | all year |
| 1,1,1-Trichloroethane | monthly average | report only (mg/L) | all year |
| 1,1,1-Trichloroethane | daily maximum | report only (mg/L) | all year |
| Equipment inspection - visual | value | report only (N=0;Y=1) | all year |
| N,N-Dimethylaniline | daily maximum | report only (ug/L) | Jan, Apr, Jul, Oct |
| N-Methylbenzeneamine | daily maximum | report only (ug/L) | Jan, Apr, Jul, Oct |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | Jan, Apr, Jul, Oct |
| Mercury, total [as Hg] | monthly average | report only (lb/d) | Jan, Apr, Jul, Oct |
| Mercury, total [as Hg] | daily maximum | report only (lb/d) | Jan, Apr, Jul, Oct |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | May, Nov |
| Mercury, total [as Hg] | rolling average | ≤ 3 ng/L | Jan, Apr, Jul, Oct |
| Mercury, total [as Hg] | rolling average | ≤ .000043 lb/d | Jan, Apr, Jul, Oct |
| Mercury, total [as Hg] | 12-month average | ≤ 3 ng/L | Jan, Apr, Jul, Oct |
| Mercury, total [as Hg] | 12-month average | ≤ .000043 lb/d | Jan, Apr, Jul, Oct |
| Aniline | daily maximum | report only (ug/L) | Jan, Apr, Jul, Oct |
| N-Ethylbenzenamine | daily maximum | report only (ug/L) | Jan, Apr, Jul, Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year |
| Camphor, whole water | daily maximum | report only (ug/L) | Jan, Apr, Jul, Oct |
| Tetrahydrofuran | daily maximum | report only (ug/L) | Jan, Apr, Jul, Oct |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year |
Cited limits by parameter: Michigan's rules and the federal ones.
Same industry: the 11 Construction — Special Trade Contractors 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/MI0053309 · MCP: https://passage-data.com/mcp