1
BLoto Lake
Morgan County, Wisconsin · 1 mi from Grav Arm 8 Lake
- +Higher grade (C → B)
- ++2.5 ft water clarity
Cleaner Lakes Than Grav Arm 8 Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Grav Arm 8 Lake carries a Grade C (Fair) water quality score. Within 30 miles, 5 lakes hold a higher grade. Loto Lake (Morgan County, Grade B, 1 mi away) is the closest meaningful upgrade.
2
BGrav Arm 10 Lake
Morgan County, Wisconsin · 1.2 mi from Grav Arm 8 Lake
- +Higher grade (C → B)
- ++1.6 ft water clarity
3
BLoto Lake
Morgan County, Wisconsin · 1.3 mi from Grav Arm 8 Lake
- +Higher grade (C → B)
- ++2 ft water clarity
5
BGrav Arm 9 Lake
Morgan County, Wisconsin · 1.2 mi from Grav Arm 8 Lake
- +Higher grade (C → B)
- ++1.5 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.