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Sewage treatment plant, Hazel Green, Wisconsin. NPDES permit WI0024210 expired Jun 30, 2024; its limits still apply. Last 12 months: no values over a limit, 10 required values missing, 9 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6 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 | ≤ 5.2 mg/L | all year | 001 |
| Phosphorus, total [as P] | annual average | report only (lb/yr) | all year | 001 |
| Phosphorus, total [as P] | annual maximum | report only (lb/yr) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 701 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 701 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 701 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 701 |
Cited limits by parameter: Wisconsin's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/WI0024210 · MCP: https://passage-data.com/mcp