Passage Data · Check a report · Use it from your AI
Sewage treatment plant, major discharger, Austin, Minnesota. NPDES permit MN0022683, in force until Nov 30, 2029. Last 12 months: over a limit 8 times (last February 2026), 14 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| January 2026 | Solids, suspended percent removal, monthly average minimum | 81.1 | ≥ 85 % | 26% |
| January 2026 | Solids, total suspended, monthly average | 1065 | ≤ 961 kg/d | 11% |
| January 2026 | Solids, total suspended, monthly average | 50 | ≤ 30 mg/L | 67% |
| January 2026 | Solids, total suspended, maximum weekly average | 187 | ≤ 45 mg/L | 316% |
| January 2026 | Solids, total suspended, maximum weekly average | 3975 | ≤ 1442 kg/d | 176% |
| February 2026 | Solids, total suspended, monthly average | 36 | ≤ 30 mg/L | 20% |
| February 2026 | Solids, total suspended, maximum weekly average | 1743 | ≤ 1442 kg/d | 21% |
| February 2026 | Solids, total suspended, maximum weekly average | 86 | ≤ 45 mg/L | 91% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 6 mg/L | Jun–Sep | D136 |
| Oxygen, dissolved [DO] | monthly minimum | ≥ 5.5 mg/L | Jan, Feb, Mar, Dec | D136 |
| Oxygen, dissolved [DO] | monthly minimum | ≥ 5 mg/L | Apr, May, Oct, Nov | D136 |
| pH | monthly minimum | ≥ 6 SU | all year | D136 |
| pH | monthly maximum | ≤ 9 SU | all year | D136 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | D136 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year | D136 |
| Solids, total suspended | monthly maximum | report only (mg/L) | May, Sep | D136 |
| Solids, total suspended | monthly average | ≤ 961 kg/d | all year | D136 |
| Solids, total suspended | maximum weekly average | ≤ 1442 kg/d | all year | D136 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 22 mg/L | Nov | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 11 mg/L | Oct | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12 mg/L | May | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 29 mg/L | Apr | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 41 mg/L | Jan, Feb, Mar, Dec | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 7.8 mg/L | Jun–Sep | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 705 kg/d | Nov | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 352 kg/d | Oct | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 384 kg/d | May | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 929 kg/d | Apr | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1313 kg/d | Jan, Feb, Mar, Dec | D136 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 250 kg/d | Jun–Sep | D136 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | D136 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | D136 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | D136 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | D136 |
| Chloride [as Cl] | monthly maximum | report only (mg/L) | all year | D136 |
| Sulfate, total [as SO4] | monthly maximum | report only (mg/L) | all year | D136 |
| Coliform, fecal MPN + membrane ftl 44.5 C | monthly geometric mean | ≤ 200 #/100mL | Apr–Oct | D136 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D136 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | D136 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | D136 |
| Chlorine, total residual | daily maximum | ≤ .038 mg/L | Apr–Oct | D136 |
| Solids, total dissolved | monthly average | report only (mg/L) | Mar, Sep | D136 |
| Mercury, dissolved [as Hg] | monthly maximum | report only (ng/L) | May, Sep | D136 |
| Mercury, total [as Hg] | monthly maximum | report only (ng/L) | May, Sep | D136 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 15 mg/L | Jun–Sep | D136 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 20 mg/L | Jan, Feb, Mar, Dec | D136 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | Apr, May, Oct, Nov | D136 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 30 mg/L | Jun–Sep | D136 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 35 mg/L | Jan, Feb, Mar, Dec | D136 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | Apr, May, Oct, Nov | D136 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 481 kg/d | Jun–Sep | D136 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 641 kg/d | Jan, Feb, Mar, Dec | D136 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 801 kg/d | Apr, May, Oct, Nov | D136 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 961 kg/d | Jun–Sep | D136 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 1121 kg/d | Jan, Feb, Mar, Dec | D136 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 1281 kg/d | Apr, May, Oct, Nov | D136 |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year | D136 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | D136 |
| Solids, total suspended | annual average | report only (mg/L) | all year | D164 |
| BOD, carbonaceous [5 day, 20 C] | annual average | report only (mg/L) | all year | D164 |
| Precipitation, total defined period/in | monthly total | report only (in) | all year | S141 |
| pH | monthly minimum | report only (SU) | all year | S141 |
| pH | monthly maximum | report only (SU) | all year | S141 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | S141 |
| Solids, total suspended | monthly maximum | report only (mg/L) | all year | S141 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | S141 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | S141 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | S141 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | S141 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | S141 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | S141 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | S141 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | S141 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | S141 |
| BOD, carbonaceous [5 day, 20 C] | monthly maximum | report only (mg/L) | all year | S141 |
| pH | monthly minimum | report only (SU) | all year | S142 |
| pH | monthly maximum | report only (SU) | all year | S142 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | S142 |
| Solids, total suspended | monthly maximum | report only (mg/L) | all year | S142 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | S142 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | S142 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | S142 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | S142 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | S142 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | S142 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | S142 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | S142 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | S142 |
| BOD, carbonaceous [5 day, 20 C] | monthly maximum | report only (mg/L) | all year | S142 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Phosphorus, total [as P], monthly average | 1 mg/L (May–Sep) | new | 0.78 mg/L (4 values) | 0.78× |
Cited limits by parameter: Minnesota's rules and the federal ones.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MN0022683 · MCP: https://passage-data.com/mcp