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Sewage treatment plant, Abbotsford, Wisconsin. NPDES permit WI0023141 expired Mar 31, 2023; its limits still apply. Last 12 months: no values over a limit, 48 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 4 mg/L | all year | 005 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 30 mg/L | all year | 005 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | all year | 005 |
| pH | daily minimum | ≥ 6 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | weekly average | ≤ 30 mg/L | all year | 005 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 005 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 8.3 mg/L | Jan–Apr | 005 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 9.7 mg/L | May–Sep | 005 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 14 mg/L | Oct–Dec | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.7 mg/L | Jan–Apr | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4.2 mg/L | May–Sep | 005 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 6 mg/L | Oct–Dec | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15 mg/L | Jan–Apr | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15 mg/L | May–Sep | 005 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15 mg/L | Oct–Dec | 005 |
| Phosphorus, total [as P] | monthly average | ≤ .6 mg/L | all year | 005 |
| Phosphorus, total [as P] | annual average | report only (lb/yr) | all year | 005 |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year | 005 |
| Phosphorus, total [as P] | annual maximum | report only (lb/yr) | all year | 005 |
| Hardness, total [as CaCO3] | quarterly maximum | report only (mg/L) | all year | 005 |
| Copper, total recoverable | weekly average | ≤ 22 ug/L | all year | 005 |
| Copper, total recoverable | monthly average | ≤ 22 ug/L | all year | 005 |
| Copper, total recoverable | daily maximum | ≤ 35 ug/L | all year | 005 |
| Copper, total recoverable | weekly average | report only (lb/d) | all year | 005 |
| Copper, total recoverable | daily maximum | report only (lb/d) | all year | 005 |
| 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 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 701 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | 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/WI0023141 · MCP: https://passage-data.com/mcp