1
ARuth Lake
Crow Wing County, Minnesota · 2 mi from Dahler Lake
- +Higher grade (B → A)
- ++11.6 ft water clarity
Cleaner Lakes Than Dahler Lake
3 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Dahler Lake carries a Grade B (Good) water quality score. Within 30 miles, 3 lakes hold a higher grade. Ruth Lake (Crow Wing County, Grade A, 2 mi away) is the closest meaningful upgrade.
2
AButterfield Lake
Crow Wing County, Minnesota · 3.6 mi from Dahler Lake
- +Higher grade (B → A)
- ++8.7 ft water clarity
3
AGoodrich Lake
Crow Wing County, Minnesota · 3.6 mi from Dahler Lake
- +Higher grade (B → A)
- ++10.4 ft water clarity
How this list is built
Every lake on LakeQuality has a calculated grade from EPA Water Quality Portal samples — secchi depth, total phosphorus, and chlorophyll-a measured against Metropolitan Council thresholds. To suggest cleaner alternatives, we filter lakes within 30 miles to those with a strictly higher numeric score, then rank by grade improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.