Is West Stump Lake Safe for Swimming?
West Stump Lake in Nelson County, North Dakota has a water quality grade of D (Poor). Swimming not recommended, poor water quality with high algae risk. Water clarity: 9.8 ft visibility. Chlorophyll-a (algae): 39.6 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | D (Poor) |
| Water Clarity (Secchi Depth) | 9.8 ft |
| Chlorophyll-a (Algae) | 39.6 μg/L |
| Maximum Depth | 77.1 ft |
| Location | Nelson County, North Dakota |
How does West Stump Lake compare?
With an overall water quality grade of D, West Stump Lake falls below the North Dakota state average of Grade C. It ranks #3 of 9 lakes in Nelson County by water quality score.
Water clarity (Secchi depth) sits at 9.8 feet. That puts the lake in good clarity range, with limited algae interference. Algae levels (chlorophyll-a) measure 39.6 µg/L — elevated; risk of harmful algal bloom advisories increases at this concentration.