How Clean Is Little Prairie Lake by Dam?
Little Prairie Lake by Dam has fair water quality — typical of lakes with moderate nutrient enrichment. It received a water quality grade of C (Fair) based on EPA monitoring data. Water clarity (Secchi depth): 4.9 ft. Phosphorus: 24.5 µg/L. Chlorophyll-a (algae): 6.3 µg/L. Trophic State Index: 51.
Cleanliness Snapshot
| Metric | Little Prairie Lake by Dam | Wisconsin avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 4.9 ft | — |
| Phosphorus | 24.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 6.3 µg/L | <10 = clean |
| Trophic State Index | 51 | <50 = clean |
How does Little Prairie Lake by Dam compare?
Little Prairie Lake by Dam's grade of C matches or beats the Wisconsin state average of C. It ranks #1 of 3 lakes in Phelps County by water quality score.