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Custom Compound Purchased Resins, Winona, Minnesota. NPDES permit MN0053350, in force until Nov 30, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 86 deg F | all year | D001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | D001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | D001 |
| Solids, total suspended | monthly maximum | ≤ 19 mg/L | all year | D001 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | D001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | D001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | D001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | D001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | D001 |
| Sulfate, total [as SO4] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec | D001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D001 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | D001 |
| BOD, carbonaceous [5 day, 20 C] | monthly maximum | ≤ 26 mg/L | all year | D001 |
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 86 deg F | all year | D002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | D002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | D002 |
| Solids, total suspended | monthly maximum | ≤ 19 mg/L | all year | D002 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | D002 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | D002 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | D002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | D002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | D002 |
| Sulfate, total [as SO4] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec | D002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D002 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | D002 |
| BOD, carbonaceous [5 day, 20 C] | monthly maximum | ≤ 26 mg/L | all year | D002 |
Cited limits by parameter: Minnesota's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/MN0053350 · MCP: https://passage-data.com/mcp