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Search And Navigation Equipment, Minneapolis, Minnesota. NPDES permit MN0042641, in force until Feb 28, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | ≤ 86 deg F | all year |
| pH | monthly minimum | ≥ 6 SU | all year |
| pH | monthly maximum | ≤ 9 SU | all year |
| Solids, total suspended | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Nitrogen, total [as N] | annual average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | annual average | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | annual average | report only (mg/L) | all year |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec |
| Trichloroethylene | monthly maximum | report only (ug/L) | Mar, Jun, Sep, Dec |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year |
| Solids, total dissolved | monthly maximum | report only (mg/L) | Mar, Sep |
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/MN0042641 · MCP: https://passage-data.com/mcp