How Clean Is Clara Lake?
Clara Lake is a clean lake by Minnesota standards. It received a water quality grade of B (Good) based on EPA monitoring data. Water clarity (Secchi depth): 7.6 ft. Phosphorus: 15 µg/L. Trophic State Index: 46.
Cleanliness Snapshot
| Metric | Clara Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 7.6 ft | — |
| Phosphorus | 15 µg/L | <30 = clean |
| Trophic State Index | 46 | <50 = clean |
How does Clara Lake compare?
Clara Lake's grade of B matches or beats the Minnesota state average of C. It ranks #55 of 128 lakes in Cook County by water quality score. Multi-year monitoring data shows water quality is stable based on 2 years of records.