How Clean Is Sand Point Lake?
Sand Point Lake has poor water quality, with elevated phosphorus and algae. It received a water quality grade of D (Poor) based on EPA monitoring data. Water clarity (Secchi depth): 6.6 ft. Trophic State Index: 50.
Cleanliness Snapshot
| Metric | Sand Point Lake | Minnesota avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 6.6 ft | — |
| Trophic State Index | 50 | <50 = clean |
How does Sand Point Lake compare?
Sand Point Lake's grade of D falls below the Minnesota state average of C. It ranks #150 of 187 lakes in St. Louis County by water quality score. Multi-year monitoring data shows water quality is stable based on 5 years of records.