North Branch WWTP
6793 Ash St, North Branch, MN 55056 · Chisago County · Publicly Owned Treatment Works
- Average flow
- 0.41 MGD
- Design flow
- 0.81 MGD
- NPDES permit
- MN0024350
- Expired
- Permit expires
- April 2025
- Population served
- 11,332
- CWNS 2022
North Branch WWTP is a publicly owned wastewater treatment works in North Branch, Chisago County, Minnesota treating an average of 0.41 million gallons per day against a permitted design capacity of 0.81 MGD, serving about 11,332 residents. It discharges under NPDES permit MN0024350 (expired), which expires in April 2025, with 0 recorded violations in the last three years.
Treatment technology
4 treatment structures and unit processes identified at North Branch WWTP.
Available with a free Klarifi account
See the full treatment train at North Branch WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- 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 North Branch WWTP.
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Nearby wastewater treatment plants in Minnesota
Harris · 4 mi away
0.02 MGD
Chisago City · 9 mi away
1.02 MGD
Cambridge · 13 mi away
0.68 MGD
Shafer · 13 mi away
—
Braham · 17 mi away
0.14 MGD
Saint Francis · 22 mi away
0.38 MGD
Pine City · 23 mi away
0.61 MGD
Princeton · 29 mi away
0.43 MGD
North Branch WWTP: 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 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms