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Creamery Butter, Winthrop, Minnesota. NPDES permit MN0003671, in force until Apr 30, 2031. Last 12 months: over a limit 3 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | Temperature, water deg. fahrenheit, monthly maximum | 88 | ≤ 86 deg F | 2% |
| July 2026 | Temperature, water deg. fahrenheit, monthly maximum | 88 | ≤ 86 deg F | 2% |
| July 2026 | pH, instantaneous maximum | 9.3 | ≤ 9 SU | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 86 deg F | all year | D054 |
| pH | instantaneous minimum | ≥ 6 SU | all year | D054 |
| pH | instantaneous maximum | ≤ 9 SU | all year | D054 |
| Solids, total suspended | monthly average | ≤ 66 mg/L | all year | D054 |
| Solids, total suspended | daily maximum | ≤ 94 mg/L | all year | D054 |
| Solids, total suspended | monthly average | ≤ 23 kg/d | all year | D054 |
| Solids, total suspended | daily maximum | ≤ 50 kg/d | all year | D054 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | D054 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | D054 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | D054 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | D054 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | D054 |
| Phosphorus, total [as P] | annual total | report only (kg/yr) | all year | D054 |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year | D054 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | D054 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | D054 |
| Sulfate, total [as SO4] | monthly average | report only (kg/d) | all year | D054 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D054 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | D054 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | D054 |
| Solids, total dissolved | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec | D054 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 15 mg/L | all year | D054 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 30 mg/L | all year | D054 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 5.22 kg/d | all year | D054 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 10.43 kg/d | all year | D054 |
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 86 deg F | all year | D055 |
| pH | instantaneous minimum | ≥ 6 SU | all year | D055 |
| pH | instantaneous maximum | ≤ 9 SU | all year | D055 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | D055 |
| Solids, total suspended | monthly maximum | report only (mg/L) | all year | D055 |
| Solids, total suspended | monthly average | report only (kg/d) | all year | D055 |
| Solids, total suspended | monthly maximum | report only (kg/d) | all year | D055 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | D055 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | D055 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | D055 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | D055 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | D055 |
| Phosphorus, total [as P] | annual total | report only (kg/yr) | all year | D055 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D055 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | D055 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | D055 |
| Chlorine, total residual | daily maximum | ≤ .038 mg/L | all year | D055 |
| Solids, total suspended | monthly maximum | ≤ 136 kg/d | all year | D059 |
| Phosphorus, total [as P] | annual total | report only (kg/yr) | all year | D059 |
Cited limits by parameter: Minnesota's rules and the federal ones.
Same industry: the 28 Food and Kindred Products permits in Minnesota.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MN0003671 · MCP: https://passage-data.com/mcp