Big Falls
County Highway 30, Big Falls, MN 56627 · Koochiching County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.04 MGD
- NPDES permit
- MNG585135
- Effective
- Permit expires
- November 2028
- Population served
- 296
- CWNS 2022
Big Falls is a publicly owned wastewater treatment plant in Big Falls, Koochiching County, Minnesota, serving about 296 residents. It discharges under NPDES permit MNG585135 (effective), which expires in November 2028, with 13 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Big Falls.
Available with a free Klarifi account
See the full treatment train at Big Falls: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 13
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Big Falls.
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Nearby wastewater treatment plants in Minnesota
Littlefork · 20 mi away
—
International Falls · 25 mi away
0.75 MGD
Effie · 26 mi away
0.0085 MGD
Northome · 29 mi away
—
Birchdale · 30 mi away
0.02 MGD
Bigfork · 32 mi away
—
Kelliher · 34 mi away
—
Nett Lake · 35 mi away
0.02 MGD
Big Falls: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated November 7, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms