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Special Trade Contractors, Bay City, Michigan. NPDES permit MI0059217, in force until Oct 1, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 3 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 3.5 lb/d | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 001 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 001 |
| Benzene, ethylbenzene, toluene, xylene combination | daily maximum | ≤ 20 ug/L | all year | 001 |
| Toluene | daily maximum | report only (ug/L) | all year | 001 |
| Toluene | daily maximum | report only (ug/L) | all year | 001 |
| Benzene | daily maximum | ≤ 5 ug/L | all year | 001 |
| Benzene | daily maximum | report only (ug/L) | all year | 001 |
| Acenaphthylene | daily maximum | ≤ 5 ug/L | all year | 001 |
| Acenaphthylene | daily maximum | report only (ug/L) | all year | 001 |
| Acenaphthene | daily maximum | ≤ 5 ug/L | all year | 001 |
| Acenaphthene | daily maximum | report only (ug/L) | all year | 001 |
| Anthracene | daily maximum | ≤ 5 ug/L | all year | 001 |
| Anthracene | daily maximum | report only (ug/L) | all year | 001 |
| Benzo[b]fluoranthene | monthly average | ≤ .31 ug/L | all year | 001 |
| Benzo[b]fluoranthene | daily maximum | report only (ug/L) | all year | 001 |
| Benzo[b]fluoranthene | daily maximum | report only (ug/L) | all year | 001 |
| Benzo[k]fluoranthene | monthly average | ≤ .31 ug/L | all year | 001 |
| Benzo[k]fluoranthene | daily maximum | report only (ug/L) | all year | 001 |
| Benzo[k]fluoranthene | daily maximum | report only (ug/L) | all year | 001 |
| Benzo[a]pyrene | monthly average | ≤ .31 ug/L | all year | 001 |
| Benzo[a]pyrene | daily maximum | report only (ug/L) | all year | 001 |
| Benzo[a]pyrene | daily maximum | report only (ug/L) | all year | 001 |
| Chrysene | monthly average | ≤ .31 ug/L | all year | 001 |
| Chrysene | daily maximum | report only (ug/L) | all year | 001 |
| Chrysene | daily maximum | report only (ug/L) | all year | 001 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 001 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 001 |
| Fluoranthene | monthly average | ≤ 1.6 ug/L | all year | 001 |
| Fluoranthene | daily maximum | report only (ug/L) | all year | 001 |
| Fluoranthene | daily maximum | report only (ug/L) | all year | 001 |
| Fluorene | daily maximum | ≤ 5 ug/L | all year | 001 |
| Fluorene | daily maximum | report only (ug/L) | all year | 001 |
| Indeno[1,2,3-cd]pyrene | monthly average | ≤ .31 ug/L | all year | 001 |
| Indeno[1,2,3-cd]pyrene | daily maximum | report only (ug/L) | all year | 001 |
| Indeno[1,2,3-cd]pyrene | daily maximum | report only (ug/L) | all year | 001 |
| Phenanthrene | monthly average | ≤ 1.4 ug/L | all year | 001 |
| Phenanthrene | daily maximum | report only (ug/L) | all year | 001 |
| Phenanthrene | daily maximum | report only (ug/L) | all year | 001 |
| Pyrene | daily maximum | ≤ 5 ug/L | all year | 001 |
| Pyrene | daily maximum | report only (ug/L) | all year | 001 |
| Benzo[ghi]perylene | daily maximum | ≤ 5 ug/L | all year | 001 |
| Benzo[ghi]perylene | daily maximum | report only (ug/L) | all year | 001 |
| Benzo[a]anthracene | monthly average | ≤ .31 ug/L | all year | 001 |
| Benzo[a]anthracene | daily maximum | report only (ug/L) | all year | 001 |
| Benzo[a]anthracene | daily maximum | report only (ug/L) | all year | 001 |
| Dibenz[a,h]anthracene | monthly average | ≤ .31 ug/L | all year | 001 |
| Dibenz[a,h]anthracene | daily maximum | report only (ug/L) | all year | 001 |
| Dibenz[a,h]anthracene | daily maximum | report only (ug/L) | all year | 001 |
| Naphthalene | daily maximum | ≤ 5 ug/L | all year | 001 |
| Naphthalene | daily maximum | report only (ug/L) | all year | 001 |
| Equipment inspection - visual | value | report only (N=0;Y=1) | 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 | monthly average | 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 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 001 |
| Xylene [mix of m+o+p] | daily maximum | report only (ug/L) | all year | 001 |
| Xylene [mix of m+o+p] | daily maximum | report only (ug/L) | all year | 001 |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 3 mg/L | all year | 002 |
| pH | daily minimum | ≥ 6.5 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ 3.5 lb/d | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 002 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 002 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 002 |
| Benzene, ethylbenzene, toluene, xylene combination | daily maximum | ≤ 20 ug/L | all year | 002 |
| Toluene | daily maximum | report only (ug/L) | all year | 002 |
| Toluene | daily maximum | report only (ug/L) | all year | 002 |
| Benzene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Benzene | daily maximum | report only (ug/L) | all year | 002 |
| Acenaphthylene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Acenaphthylene | daily maximum | report only (ug/L) | all year | 002 |
| Acenaphthene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Acenaphthene | daily maximum | report only (ug/L) | all year | 002 |
| Anthracene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Anthracene | daily maximum | report only (ug/L) | all year | 002 |
| Benzo[b]fluoranthene | monthly average | ≤ .31 ug/L | all year | 002 |
| Benzo[b]fluoranthene | daily maximum | report only (ug/L) | all year | 002 |
| Benzo[b]fluoranthene | daily maximum | report only (ug/L) | all year | 002 |
| Benzo[k]fluoranthene | monthly average | ≤ .31 ug/L | all year | 002 |
| Benzo[k]fluoranthene | daily maximum | report only (ug/L) | all year | 002 |
| Benzo[k]fluoranthene | daily maximum | report only (ug/L) | all year | 002 |
| Benzo[a]pyrene | monthly average | ≤ .31 ug/L | all year | 002 |
| Benzo[a]pyrene | daily maximum | report only (ug/L) | all year | 002 |
| Benzo[a]pyrene | daily maximum | report only (ug/L) | all year | 002 |
| Chrysene | monthly average | ≤ .31 ug/L | all year | 002 |
| Chrysene | daily maximum | report only (ug/L) | all year | 002 |
| Chrysene | daily maximum | report only (ug/L) | all year | 002 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 002 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 002 |
| Fluoranthene | monthly average | ≤ 1.6 ug/L | all year | 002 |
| Fluoranthene | daily maximum | report only (ug/L) | all year | 002 |
| Fluoranthene | daily maximum | report only (ug/L) | all year | 002 |
| Fluorene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Fluorene | daily maximum | report only (ug/L) | all year | 002 |
| Indeno[1,2,3-cd]pyrene | monthly average | ≤ .31 ug/L | all year | 002 |
| Indeno[1,2,3-cd]pyrene | daily maximum | report only (ug/L) | all year | 002 |
| Indeno[1,2,3-cd]pyrene | daily maximum | report only (ug/L) | all year | 002 |
| Phenanthrene | monthly average | ≤ 1.4 ug/L | all year | 002 |
| Phenanthrene | daily maximum | report only (ug/L) | all year | 002 |
| Phenanthrene | daily maximum | report only (ug/L) | all year | 002 |
| Pyrene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Pyrene | daily maximum | report only (ug/L) | all year | 002 |
| Benzo[ghi]perylene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Benzo[ghi]perylene | daily maximum | report only (ug/L) | all year | 002 |
| Benzo[a]anthracene | monthly average | ≤ .31 ug/L | all year | 002 |
| Benzo[a]anthracene | daily maximum | report only (ug/L) | all year | 002 |
| Benzo[a]anthracene | daily maximum | report only (ug/L) | all year | 002 |
| Dibenz[a,h]anthracene | monthly average | ≤ .31 ug/L | all year | 002 |
| Dibenz[a,h]anthracene | daily maximum | report only (ug/L) | all year | 002 |
| Dibenz[a,h]anthracene | daily maximum | report only (ug/L) | all year | 002 |
| Naphthalene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Naphthalene | daily maximum | report only (ug/L) | all year | 002 |
| Equipment inspection - visual | value | report only (N=0;Y=1) | 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 | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 002 |
| Xylene [mix of m+o+p] | daily maximum | report only (ug/L) | all year | 002 |
| Xylene [mix of m+o+p] | daily maximum | report only (ug/L) | all year | 002 |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 002 |
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/MI0059217 · MCP: https://passage-data.com/mcp