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Sewerage Systems, Waterford, Wisconsin. NPDES permit WI0029807 expired Jun 30, 2024; its limits still apply. Last 12 months: over a limit 5 times (last April 2026), 30 required values missing, 18 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| April 2026 | BOD, 5-day, 20 deg. C, monthly average | 22.9231 | ≤ 20 mg/L | 15% |
| April 2026 | BOD, 5-day, 20 deg. C, weekly average | 44.6667 | ≤ 30 mg/L | 49% |
| April 2026 | Oxygen, dissolved [DO], daily minimum | 1.8 | ≥ 4 mg/L | 55% |
| April 2026 | Solids, total suspended, monthly average | 21 | ≤ 20 mg/L | 5% |
| April 2026 | Solids, total suspended, weekly average | 36 | ≤ 30 mg/L | 20% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 4 mg/L | all year | 004 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 30 mg/L | all year | 004 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | all year | 004 |
| pH | daily minimum | ≥ 6 SU | all year | 004 |
| pH | daily maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | weekly average | ≤ 30 mg/L | all year | 004 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 004 |
| Phosphorus, total [as P] | monthly average | ≤ 3.92 mg/L | all year | 004 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 004 |
| 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/WI0029807 · MCP: https://passage-data.com/mcp