Three Oaks Wwsl
Schwark Rd, Three Oaks, MI 49128 · Berrien County · Publicly Owned Treatment Works
- Average flow
- 2.07 MGD
- Design flow
- —
- NPDES permit
- MIG580294
- Administratively continued
- Permit expires
- April 2024
- Population served
- 1,864
- CWNS 2022
Three Oaks Wwsl is a publicly owned wastewater treatment plant in Three Oaks, Berrien County, Michigan treating an average of 2.07 million gallons per day, serving about 1,864 residents. It discharges under NPDES permit MIG580294 (administratively continued), which expires in April 2024, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Three Oaks Wwsl.
Treatment structure data not yet analyzed for this facility.
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
1 verified contact for Three Oaks Wwsl, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Three Oaks Wwsl, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Galien · 5 mi away
1 MGD
Baroda · 13 mi away
0.6 MGD
Niles · 18 mi away
5.05 MGD
Berrien Springs · 18 mi away
0.2 MGD
Dowagiac · 28 mi away
1.61 MGD
Coloma · 32 mi away
0.91 MGD
Hartford · 37 mi away
0.19 MGD
Decatur · 39 mi away
1.07 MGD
Three Oaks Wwsl: 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 14, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms