How Clean Is Lac la Croix Lake?
Lac la Croix 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): 2.5 ft. Trophic State Index: 64.
Cleanliness Snapshot
| Metric | Lac la Croix Lake | Minnesota avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 2.5 ft | — |
| Trophic State Index | 64 | <50 = clean |
How does Lac la Croix Lake compare?
Lac la Croix Lake's grade of F falls below the Minnesota state average of C. It ranks #207 of 215 lakes in St. Louis County by water quality score.