How Clean Is West Graham Lake?
West Graham Lake is algae-prone, with a higher bloom risk in warm months. It received a water quality grade of F (Algae-prone) based on EPA monitoring data. Water clarity (Secchi depth): 4.1 ft. Phosphorus: 182 µg/L. Chlorophyll-a (algae): 110.8 µg/L. Trophic State Index: 71.
Cleanliness Snapshot
| Metric | West Graham Lake | Minnesota avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 4.1 ft | — |
| Phosphorus | 182 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 110.8 µg/L | <10 = clean |
| Trophic State Index | 71 | <50 = clean |
How does West Graham Lake compare?
West Graham Lake's grade of F falls below the Minnesota state average of C. It ranks #5 of 5 lakes in Nobles County by water quality score.