1
ALong Lake
Becker County, Minnesota · 2.3 mi from Dart Lake
- +Two grade letters higher (D → A)
- ++17 ft water clarity
- +Lower phosphorus (8 vs 61 µg/L)
Cleaner Lakes Than Dart Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Dart Lake carries a Grade D (Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Long Lake (Becker County, Grade A, 2.3 mi away) is the closest meaningful upgrade.
2
AFox Lake
Becker County, Minnesota · 1.1 mi from Dart Lake
- +Two grade letters higher (D → A)
- ++10.5 ft water clarity
- +Lower phosphorus (14.5 vs 61 µg/L)
3
APearl Lake
Becker County, Minnesota · 1.4 mi from Dart Lake
- +Two grade letters higher (D → A)
- ++7 ft water clarity
- +Lower phosphorus (18 vs 61 µg/L)
4
BSallie Lake
Becker County, Minnesota · 2 mi from Dart Lake
- +Two grade letters higher (D → B)
- ++9.2 ft water clarity
- +Lower phosphorus (21 vs 61 µg/L)
5
BMunson Lake
Becker County, Minnesota · 1.4 mi from Dart Lake
- +Two grade letters higher (D → B)
- ++4.8 ft water clarity
- +Lower phosphorus (21 vs 61 µg/L)
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.