How Clean Is Locke Lake?
Locke 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): 3 ft. Phosphorus: 107 µg/L. Trophic State Index: 67.
Cleanliness Snapshot
| Metric | Locke Lake | Minnesota avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 3 ft | — |
| Phosphorus | 107 µg/L | <30 = clean |
| Trophic State Index | 67 | <50 = clean |
How does Locke Lake compare?
Locke Lake's grade of F falls below the Minnesota state average of C. It ranks #22 of 24 lakes in Anoka County by water quality score.