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Special Trade Contractors, Lansing, Michigan. NPDES permit MI0055077, in force until Oct 1, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 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 | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | = 900 lb/mo | Jul–Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | = 580 lb/d | May, Jun | 001 |
| Nitrogen, ammonia total [as N] | monthly average | = 640 lb/d | Oct, Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | = 800 lb/d | Jan, Feb, Mar, Apr, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (lb/mo) | Jul–Sep | 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 |
| 1,1-Dichloroethylene | daily maximum | = 5 ug/L | all year | 001 |
| 1,1-Dichloroethylene | daily maximum | report only (ug/L) | all year | 001 |
| trans-1,2-Dichloroethylene | daily maximum | = 5 ug/L | all year | 001 |
| trans-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | 001 |
| Vinyl chloride | daily maximum | ≤ 3 ug/L | all year | 001 |
| Vinyl chloride | 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 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total dissolved | monthly average | report only (lb/d) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (lb/d) | all year | 001 |
| Solids, total dissolved | monthly average | ≤ 30600 lb/d | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec | 001 |
| Solids, total dissolved | monthly average | ≤ 26700 lb/d | Jul–Sep | 001 |
| Solids, total dissolved | daily maximum | ≤ 184000 lb/d | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec | 001 |
| Solids, total dissolved | daily maximum | ≤ 153000 lb/d | Jul–Sep | 001 |
| Trichloroethene | daily maximum | ≤ 5 ug/L | all year | 001 |
| Trichloroethene | daily maximum | report only (ug/L) | all year | 001 |
| cis-1,2-Dichloroethene | daily maximum | = 5 ug/L | all year | 001 |
| cis-1,2-Dichloroethene | 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 | ≥ 5 mg/L | all year | 003 |
| pH | daily minimum | ≥ 6.5 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | 003 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (lb/mo) | Jul–Sep | 003 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 003 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 003 |
| 1,1-Dichloroethylene | daily maximum | = 5 ug/L | all year | 003 |
| 1,1-Dichloroethylene | daily maximum | report only (ug/L) | all year | 003 |
| trans-1,2-Dichloroethylene | daily maximum | = 5 ug/L | all year | 003 |
| trans-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | 003 |
| Vinyl chloride | daily maximum | ≤ 3 ug/L | all year | 003 |
| Vinyl chloride | daily maximum | report only (ug/L) | all year | 003 |
| Equipment inspection - visual | value | report only (N=0;Y=1) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 003 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 003 |
| Solids, total dissolved | monthly average | report only (lb/d) | all year | 003 |
| Solids, total dissolved | daily maximum | report only (lb/d) | all year | 003 |
| Trichloroethene | daily maximum | ≤ 5 ug/L | all year | 003 |
| Trichloroethene | daily maximum | report only (ug/L) | all year | 003 |
| cis-1,2-Dichloroethene | daily maximum | = 5 ug/L | all year | 003 |
| cis-1,2-Dichloroethene | daily maximum | report only (ug/L) | all year | 003 |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 003 |
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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Your permit document is the final word. As JSON: /api/v1/permits/MI0055077 · MCP: https://passage-data.com/mcp