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Colleges And Universities, Collegeville, Minnesota. NPDES permit MN0046035, in force until May 31, 2029. Last 12 months: over a limit once (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| June 2026 | pH, instantaneous maximum | 9.2 | ≤ 9 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | ≤ 86 deg F | all year | D003 |
| Specific conductance | quarterly maximum | report only (umho/cm) | all year | D003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | D003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | D003 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | D003 |
| Nitrogen, total [as N] | annual average | report only (mg/L) | all year | D003 |
| Nitrogen, Kjeldahl, total [as N] | annual average | report only (mg/L) | all year | D003 |
| Nitrite + Nitrate total [as N] | annual average | report only (mg/L) | all year | D003 |
| Phosphorus, total [as P] | quarterly maximum | ≤ 1 mg/L | all year | D003 |
| Chloride [as Cl] | quarterly maximum | report only (mg/L) | all year | D003 |
| Sulfate, total [as SO4] | quarterly average | ≤ 842 mg/L | all year | D003 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1458 mg/L | all year | D003 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | D003 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | D003 |
| Flow, in conduit or thru treatment plant | quarterly total | report only (Mgal/mo) | all year | D003 |
| Chlorine, total residual | daily maximum | ≤ .038 mg/L | all year | D003 |
| Solids, total dissolved | quarterly maximum | report only (mg/L) | all year | D003 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 86 deg F | all year | D004 |
| pH | instantaneous minimum | ≥ 6 SU | all year | D004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | D004 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | D004 |
| Nitrogen, nitrate total [as N] | annual average | report only (mg/L) | all year | D004 |
| Nitrogen, Kjeldahl, total [as N] | annual average | report only (mg/L) | all year | D004 |
| Nitrite + Nitrate total [as N] | annual average | report only (mg/L) | all year | D004 |
| Phosphorus, total [as P] | quarterly maximum | ≤ 1 mg/L | all year | D004 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | D004 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | D004 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (Mgal/mo) | all year | D004 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 86 deg F | all year | D005 |
| Specific conductance | quarterly maximum | report only (umho/cm) | all year | D005 |
| pH | instantaneous minimum | ≥ 6 SU | all year | D005 |
| pH | instantaneous maximum | ≤ 9 SU | all year | D005 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | D005 |
| Nitrogen, total [as N] | annual average | report only (mg/L) | all year | D005 |
| Nitrogen, Kjeldahl, total [as N] | annual average | report only (mg/L) | all year | D005 |
| Nitrite + Nitrate total [as N] | annual average | report only (mg/L) | all year | D005 |
| Phosphorus, total [as P] | quarterly maximum | ≤ 1 mg/L | all year | D005 |
| Chloride [as Cl] | quarterly average | report only (mg/L) | all year | D005 |
| Sulfate, total [as SO4] | quarterly average | ≤ 794 mg/L | all year | D005 |
| Sulfate, total [as SO4] | daily maximum | ≤ 2296 mg/L | all year | D005 |
| Flow, in conduit or thru treatment plant | quarterly average | report only (MGD) | all year | D005 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | all year | D005 |
| Flow, in conduit or thru treatment plant | quarterly total | report only (Mgal/mo) | all year | D005 |
| Chlorine, total residual | daily maximum | ≤ .2 mg/L | all year | D005 |
| Solids, total dissolved | quarterly maximum | report only (mg/L) | all year | D005 |
Cited limits by parameter: Minnesota's rules and the federal ones.
Same industry: the 6 Educational Services permits in Minnesota.
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