NPDES permit MN0021270 · Minor POTW · expired, expires 2025-05-31 · EPA's file as of 2026-09-19
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This permit expired on 2025-05-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31. Most often over: Solids, suspended percent removal (6), Solids, total suspended (4), BOD, carb-5 day, 20 deg C, percent removal (3).
Reports are due about 21 days after each monitoring period ends (the most common figure among MN permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| D001 | Specific conductance | QB | report only | Mar, Jun, Sep, Dec |
| D001 | Oxygen, dissolved [DO] | MO MIN | report only | all year |
| D001 | pH | MO MIN | >= 6 SU | all year |
| D001 | pH | MO MAX | <= 9 SU | all year |
| D001 | Bicarbonate ion- [as HCO3] | QB | report only | Mar, Jun, Sep, Dec |
| D001 | Solids, total suspended | MO AVG | <= 45 mg/L | all year |
| D001 | Solids, total suspended | MX WK AV | <= 65 mg/L | all year |
| D001 | Solids, total suspended | MO AVG | <= 11 kg/d | all year |
| D001 | Solids, total suspended | MX WK AV | <= 16 kg/d | all year |
| D001 | Nitrogen, total [as N] | MO AVG | report only | Mar, Sep |
| D001 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | Mar, Sep |
| D001 | Nitrite + Nitrate total [as N] | MO AVG | report only | Mar, Sep |
| D001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| D001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| D001 | Calcium, total [as Ca] | ANNL MAX | report only | all year |
| D001 | Magnesium, total [as Mg] | ANNL MAX | report only | all year |
| D001 | Sodium, total [as Na] | ANNL MAX | report only | all year |
| D001 | Potassium, total [as K] | ANNL MAX | report only | all year |
| D001 | Chloride [as Cl] | ANNL MAX | report only | all year |
| D001 | Sulfate, total [as SO4] | ANNL MAX | report only | all year |
| D001 | Hardness, Ca Mg Calculated [mg/L as CaCO3] | ANNL MAX | report only | all year |
| D001 | Coliform, fecal MPN + membrane ftl 44.5 C | MO GEOMN | <= 200 #/100mL | May, Jun, Jul, Aug, Sep, Oct |
| D001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| D001 | Flow, in conduit or thru treatment plant | MO MAX | report only | all year |
| D001 | Flow, in conduit or thru treatment plant | MO TOTAL | report only | all year |
| D001 | Chlorine, total residual | DAILY MX | <= .038 mg/L | all year |
| D001 | Solids, total dissolved | QB | report only | Mar, Jun, Sep, Dec |
| D001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 25 mg/L | all year |
| D001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 40 mg/L | all year |
| D001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 9.1 kg/d | all year |
| D001 | BOD, carbonaceous [5 day, 20 C] | MX WK AV | <= 14 kg/d | all year |
| D001 | BOD, carb-5 day, 20 deg C, percent removal | MO AV MN | >= 85 % | all year |
| D001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| S002 | Precipitation, total defined period/in | MO TOTAL | report only | all year |
| S002 | pH | MO MIN | report only | all year |
| S002 | pH | MO MAX | report only | all year |
| S002 | Solids, total suspended | MO AVG | report only | all year |
| S002 | Solids, total suspended | MO MAX | report only | all year |
| S002 | Nitrogen, total [as N] | MO AVG | report only | Mar, Sep |
| S002 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | Mar, Sep |
| S002 | Nitrite + Nitrate total [as N] | MO AVG | report only | Mar, Sep |
| S002 | Phosphorus, total [as P] | MO AVG | report only | all year |
| S002 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | all year |
| S002 | BOD, carbonaceous [5 day, 20 C] | MO MAX | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states