Passage Data · Check a report · Use it from your AI
Sewage treatment plant, Saint Clair Shores, Michigan. NPDES permit MI0025453, in force until Oct 1, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year |
| pH | daily minimum | report only (SU) | all year |
| pH | maximum | report only (SU) | all year |
| Solids, total suspended | maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year |
| 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 |
| 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 |
| Chlorine, total residual | average value | ≤ 1.8 mg/L | all year |
| Chlorine, total residual | maximum | report only (mg/L) | all year |
| E. coli | daily maximum | ≤ 1000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec |
| E. coli | daily maximum | ≤ 300 #/100mL | May–Oct |
| BOD, carbonaceous [5 day, 20 C] | maximum | report only (mg/L) | all year |
Cited limits by parameter: Michigan's rules and the federal ones.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MI0025453 · MCP: https://passage-data.com/mcp