Is Sarah Lake Safe for Swimming?
Sarah Lake in Murray County, Minnesota has a water quality grade of C (Fair). Generally safe for swimming, moderate water quality. Water clarity: 3.9 ft visibility. Phosphorus: 59 µg/L. Chlorophyll-a (algae): 2.1 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | C (Fair) |
| Water Clarity (Secchi Depth) | 3.9 ft |
| Phosphorus | 59 μg/L |
| Chlorophyll-a (Algae) | 2.1 μg/L |
| Maximum Depth | 10 ft |
| Location | Murray County, Minnesota |
How does Sarah Lake compare?
With an overall water quality grade of C, Sarah Lake matches or beats the Minnesota state average of Grade C. It ranks #1 of 9 lakes in Murray County by water quality score.
Water clarity (Secchi depth) sits at 3.9 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment. Algae levels (chlorophyll-a) measure 2.1 µg/L — low and well within safe swimming guidelines.