How Clean Is Western Stump Lake?
Western Stump Lake has very poor water quality and a high algae bloom risk. It received a water quality grade of F (Very Poor) based on EPA monitoring data. Water clarity (Secchi depth): 4.3 ft. Phosphorus: 154.5 µg/L. Chlorophyll-a (algae): 36.7 µg/L. Trophic State Index: 66.
Cleanliness Snapshot
| Metric | Western Stump Lake | North Dakota avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 4.3 ft | — |
| Phosphorus | 154.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 36.7 µg/L | <10 = clean |
| Trophic State Index | 66 | <50 = clean |
How does Western Stump Lake compare?
Western Stump Lake's grade of F falls below the North Dakota state average of C. It ranks #7 of 9 lakes in Nelson County by water quality score. Multi-year monitoring data shows water quality is improving based on 4 years of records.