How Clean Is Mill Lake?
Mill 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): 8.5 ft. Phosphorus: 16 µg/L. Trophic State Index: 45.
Cleanliness Snapshot
| Metric | Mill Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 8.5 ft | — |
| Phosphorus | 16 µg/L | <30 = clean |
| Trophic State Index | 45 | <50 = clean |
How does Mill Lake compare?
Mill Lake's grade of B matches or beats the Minnesota state average of C. It ranks #43 of 93 lakes in Becker County by water quality score.