Clear Lake/clearwater WWTP
6491 County Road 8, Clear Lake, MN 55319 · Sherburne County · Publicly Owned Treatment Works
- Average flow
- 0.19 MGD
- Design flow
- 0.48 MGD
- NPDES permit
- MN0047490
- Effective
- Permit expires
- January 2030
- Population served
- 1,594
- CWNS 2022
Clear Lake/clearwater WWTP is a publicly owned wastewater treatment works in Clear Lake, Sherburne County, Minnesota treating an average of 0.19 million gallons per day against a permitted design capacity of 0.48 MGD, serving about 1,594 residents. It discharges under NPDES permit MN0047490 (effective), which expires in January 2030, with 0 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Clear Lake/clearwater WWTP.
Available with a free Klarifi account
See the full treatment train at Clear Lake/clearwater 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 Clear Lake/clearwater WWTP.
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Nearby wastewater treatment plants in Minnesota
St. Cloud · 6 mi away
9.41 MGD
Becker · 8 mi away
0.9 MGD
Maple Lake · 13 mi away
0.67 MGD
Monticello · 15 mi away
1.04 MGD
Big Lake · 16 mi away
0.73 MGD
Foley · 18 mi away
—
Cold Spring · 19 mi away
1.11 MGD
Otsego · 21 mi away
0.49 MGD
Clear Lake/clearwater 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 September 17, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms