Passage Data · Check a report · Use it from your AI
Sewage treatment plant, Little Falls, Minnesota. NPDES permit MN0003182 expired Dec 31, 2023; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Turbidity | quarterly maximum | ≤ 25 NTU | Mar, Jun, Sep, Dec |
| pH | quarterly minimum | ≥ 6 SU | Mar, Jun, Sep, Dec |
| pH | quarterly maximum | ≤ 9 SU | Mar, Jun, Sep, Dec |
| Solids, total suspended | quarterly maximum | ≤ 30 mg/L | Mar, Jun, Sep, Dec |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | Mar, Sep |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Mar, Sep |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Sep |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year |
| Phosphorus, total [as P] | annual total | ≤ 2 kg/yr | all year |
| Iron, total [as Fe] | quarterly maximum | ≤ 2 mg/L | Mar, Jun, Sep, Dec |
| Manganese, total [as Mn] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Aluminum, total [as Al] | quarterly maximum | ≤ 2 mg/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 |
| Chlorine, total residual | quarterly maximum | ≤ .2 mg/L | Mar, Jun, Sep, Dec |
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/MN0003182 · MCP: https://passage-data.com/mcp