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Sewerage Systems, Medary, Town Of, Wisconsin. NPDES permit WI0030911 expired Mar 31, 2023; its limits still apply. Last 12 months: over a limit 5 times (last June 2026), 124 required values missing, 20 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| April 2026 | Nitrogen, ammonia total [as N], daily maximum | 22.5 | ≤ 20 mg/L | 13% |
| April 2026 | Nitrogen, ammonia total [as N], daily maximum | 22.5 | ≤ 20 mg/L | 13% |
| April 2026 | Nitrogen, ammonia total [as N], weekly average | < 22.5 | ≤ 20 mg/L | 12% |
| April 2026 | Nitrogen, ammonia total [as N], weekly average | < 22.5 | ≤ 20 mg/L | 12% |
| June 2026 | Solids, total suspended, weekly average | 48 | ≤ 45 mg/L | 7% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 20 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 20 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 20 mg/L | all year | 001 |
| Phosphorus, total [as P] | quarterly maximum | report only (mg/L) | all year | 001 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total recoverable | weekly average | ≤ 91 ug/L | all year | 001 |
| Copper, total recoverable | monthly average | ≤ 91 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 91 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ .031 lb/d | 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 |
| Chlorine, total residual | weekly average | ≤ 38 ug/L | May–Sep | 001 |
| Chlorine, total residual | monthly average | ≤ 38 ug/L | May–Sep | 001 |
| Chlorine, total residual | daily maximum | ≤ 38 ug/L | May–Sep | 001 |
| Coliform, fecal general | weekly geometric mean | ≤ 656 #/100mL | May–Sep | 001 |
| Coliform, fecal general | geometric mean | ≤ 400 #/100mL | May–Sep | 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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Your permit document is the final word. As JSON: /api/v1/permits/WI0030911 · MCP: https://passage-data.com/mcp