How Clean Is Clam Lake?
Clam Lake 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): 9.8 ft. Phosphorus: 66 µg/L. Chlorophyll-a (algae): 13 µg/L. Trophic State Index: 55.
Cleanliness Snapshot
| Metric | Clam Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | C | B |
| Water Clarity (Secchi) | 9.8 ft | — |
| Phosphorus | 66 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 13 µg/L | <10 = clean |
| Trophic State Index | 55 | <50 = clean |
How does Clam Lake compare?
Clam Lake's grade of C falls below the Wisconsin state average of B. It ranks #67 of 70 lakes in Burnett County by water quality score. Multi-year monitoring data shows water quality is declining based on 7 years of records.