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Sewage treatment plant, Goodhue, Minnesota. NPDES permit MN0020958, in force until Jan 31, 2029. Last 12 months: over a limit 2 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| May 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 18 | ≤ 15 mg/L | 20% |
| May 2026 | Coliform, fecal MPN + membrane ftl 44.5 C, monthly geometric mean | > 2420 | ≤ 200 #/100mL | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Specific conductance | quarterly maximum | report only (umho/cm) | Mar, Jun, Sep, Dec | D031 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | all year | D031 |
| pH | monthly minimum | ≥ 6 SU | all year | D031 |
| pH | monthly maximum | ≤ 9 SU | all year | D031 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | D031 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year | D031 |
| Solids, total suspended | monthly average | ≤ 11.2 kg/d | all year | D031 |
| Solids, total suspended | maximum weekly average | ≤ 16.8 kg/d | all year | D031 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | Mar, Sep | D031 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Mar, Sep | D031 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Sep | D031 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | D031 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | D031 |
| Sulfate, total [as SO4] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec | D031 |
| Coliform, fecal MPN + membrane ftl 44.5 C | monthly geometric mean | ≤ 200 #/100mL | all year | D031 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D031 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | D031 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | D031 |
| Solids, total dissolved | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec | D031 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 15 mg/L | all year | D031 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 25 mg/L | all year | D031 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 5.6 kg/d | all year | D031 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 9.4 kg/d | all year | D031 |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year | D031 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | D031 |
| Precipitation, total defined period/in | monthly total | report only (in) | all year | S032 |
| pH | monthly minimum | report only (SU) | all year | S032 |
| pH | monthly maximum | report only (SU) | all year | S032 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | S032 |
| Solids, total suspended | monthly maximum | report only (mg/L) | all year | S032 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | Mar, Sep | S032 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Mar, Sep | S032 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Sep | S032 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | S032 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | S032 |
| BOD, carbonaceous [5 day, 20 C] | monthly maximum | report only (mg/L) | all year | S032 |
Cited limits by parameter: Minnesota'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/MN0020958 · MCP: https://passage-data.com/mcp