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Sewage treatment plant, Barnesville, Minnesota. NPDES permit MN0022501 expired Apr 30, 2026; its limits still apply. Last 12 months: over a limit 3 times (last June 2026), 65 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit |
|---|---|---|---|---|
| May 2026 | D009 | pH, monthly maximum | 9.2 | ≤ 9 SU |
| May 2026 | D013 | pH, monthly maximum | 9.3 | ≤ 9 SU |
| June 2026 | D009 | pH, monthly maximum | 9.4 | ≤ 9 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | all year | D008 |
| pH | monthly minimum | ≥ 6 SU | all year | D008 |
| pH | monthly maximum | ≤ 9 SU | all year | D008 |
| Solids, total suspended | monthly average | ≤ 45 mg/L | all year | D008 |
| Solids, total suspended | annual maximum | report only (mg/L) | all year | D008 |
| Solids, total suspended | maximum weekly average | ≤ 65 mg/L | all year | D008 |
| Solids, total suspended | monthly average | ≤ 222 kg/d | all year | D008 |
| Solids, total suspended | maximum weekly average | ≤ 320 kg/d | all year | D008 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | D008 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | D008 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | D008 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | D008 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | D008 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | D008 |
| Coliform, fecal MPN + membrane ftl 44.5 C | monthly geometric mean | ≤ 200 #/100mL | Apr–Oct | D008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Jan, Feb, Jul, Aug | D008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | D008 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | Jan, Feb, Jul, Aug | D008 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | D008 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | Jan, Feb, Jul, Aug | D008 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | D008 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | D008 |
| Mercury, dissolved [as Hg] | annual maximum | report only (ng/L) | all year | D008 |
| Mercury, total [as Hg] | annual maximum | report only (ng/L) | all year | D008 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | D008 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | all year | D008 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 123.2 kg/d | all year | D008 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 197 kg/d | all year | D008 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | all year | D009 |
| pH | monthly minimum | ≥ 6 SU | all year | D009 |
| pH | monthly maximum | ≤ 9 SU | all year | D009 |
| Solids, total suspended | monthly average | ≤ 45 mg/L | all year | D009 |
| Solids, total suspended | annual maximum | report only (mg/L) | all year | D009 |
| Solids, total suspended | maximum weekly average | ≤ 65 mg/L | all year | D009 |
| Solids, total suspended | monthly average | ≤ 302.2 kg/d | all year | D009 |
| Solids, total suspended | maximum weekly average | ≤ 437 kg/d | all year | D009 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | D009 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | D009 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | D009 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | D009 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | D009 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | D009 |
| Coliform, fecal MPN + membrane ftl 44.5 C | monthly geometric mean | ≤ 200 #/100mL | Apr–Oct | D009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Jan, Feb, Jul, Aug | D009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | D009 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | Jan, Feb, Jul, Aug | D009 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | D009 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | Jan, Feb, Jul, Aug | D009 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | D009 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | D009 |
| Mercury, dissolved [as Hg] | annual maximum | report only (ng/L) | all year | D009 |
| Mercury, total [as Hg] | annual maximum | report only (ng/L) | all year | D009 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | D009 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | all year | D009 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 168 kg/d | all year | D009 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 269 kg/d | all year | D009 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | all year | D013 |
| pH | monthly minimum | ≥ 6 SU | all year | D013 |
| pH | monthly maximum | ≤ 9 SU | all year | D013 |
| Solids, total suspended | monthly average | ≤ 45 mg/L | all year | D013 |
| Solids, total suspended | annual maximum | report only (mg/L) | all year | D013 |
| Solids, total suspended | maximum weekly average | ≤ 65 mg/L | all year | D013 |
| Solids, total suspended | monthly average | ≤ 665.4 kg/d | all year | D013 |
| Solids, total suspended | maximum weekly average | ≤ 961 kg/d | all year | D013 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | D013 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | D013 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | D013 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | D013 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | D013 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | D013 |
| Coliform, fecal MPN + membrane ftl 44.5 C | monthly geometric mean | ≤ 200 #/100mL | Apr–Oct | D013 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | D013 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Jan, Feb, Jul, Aug | D013 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | D013 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | Jan, Feb, Jul, Aug | D013 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | D013 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | Jan, Feb, Jul, Aug | D013 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | D013 |
| Mercury, dissolved [as Hg] | annual maximum | report only (ng/L) | all year | D013 |
| Mercury, total [as Hg] | annual maximum | report only (ng/L) | all year | D013 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | D013 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | all year | D013 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 370 kg/d | all year | D013 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 591 kg/d | all year | D013 |
| Precipitation, total defined period/in | monthly total | report only (in) | all year | S014 |
| pH | quarterly maximum | report only (SU) | Mar, Jun, Sep, Dec | S014 |
| Solids, total suspended | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | S014 |
| Nitrogen, total [as N] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | S014 |
| Nitrogen, Kjeldahl, total [as N] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | S014 |
| Nitrite + Nitrate total [as N] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | S014 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | S014 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | S014 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | S014 |
| BOD, carbonaceous [5 day, 20 C] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | S014 |
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/MN0022501 · MCP: https://passage-data.com/mcp