How Clean Is Garden Lake?
Garden 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): 5 ft. Phosphorus: 15 µg/L. Trophic State Index: 49.
Cleanliness Snapshot
| Metric | Garden Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 5 ft | — |
| Phosphorus | 15 µg/L | <30 = clean |
| Trophic State Index | 49 | <50 = clean |
How does Garden Lake compare?
Garden Lake's grade of B matches or beats the Minnesota state average of C. It ranks #82 of 142 lakes in Lake County by water quality score. Multi-year monitoring data shows water quality is declining based on 5 years of records.