Is W Two Rivers Reservoir Safe for Swimming?
W Two Rivers Reservoir in St. Louis County, Minnesota has a water quality grade of C (Fair). Generally safe for swimming, moderate water quality. Water clarity: 6.4 ft visibility. Phosphorus: 29 µg/L. Chlorophyll-a (algae): 5.5 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | C (Fair) |
| Water Clarity (Secchi Depth) | 6.4 ft |
| Phosphorus | 29 μg/L |
| Chlorophyll-a (Algae) | 5.5 μg/L |
| Maximum Depth | 27 ft |
| Location | St. Louis County, Minnesota |
How does W Two Rivers Reservoir compare?
With an overall water quality grade of C, W Two Rivers Reservoir matches or beats the Minnesota state average of Grade C. It ranks #57 of 68 lakes in St. Louis County by water quality score.
Water clarity (Secchi depth) sits at 6.4 feet. That puts the lake in good clarity range, with limited algae interference. Algae levels (chlorophyll-a) measure 5.5 µg/L — low and well within safe swimming guidelines.