1
BLoto Confluence of Gravois And Indian Creek Lake
Morgan County, Wisconsin · 3.4 mi from Loto Lake
- +Two grade letters higher (D → B)
- ++4.5 ft water clarity
- +Lower phosphorus (18 vs 43 µg/L)
Cleaner Lakes Than Loto Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Loto Lake carries a Grade D (Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Loto Confluence of Gravois And Indian Creek Lake (Morgan County, Grade B, 3.4 mi away) is the closest meaningful upgrade.
2
BGrav Arm 2 Lake
Morgan County, Wisconsin · 2.1 mi from Loto Lake
- +Two grade letters higher (D → B)
- ++4 ft water clarity
- +Lower phosphorus (22 vs 43 µg/L)
3
BGrav Arm 5 Lake
Morgan County, Wisconsin · 3.4 mi from Loto Lake
- +Two grade letters higher (D → B)
- ++3 ft water clarity
- +Lower phosphorus (17.5 vs 43 µg/L)
4
CGrav Arm 1 Lake
Morgan County, Wisconsin · 1.1 mi from Loto Lake
- +Higher grade (D → C)
- ++3 ft water clarity
- +Lower phosphorus (27 vs 43 µg/L)
5
CGrav If 6 Lake
Morgan County, Wisconsin · 3.2 mi from Loto Lake
- +Higher grade (D → C)
- ++3 ft water clarity
- +Lower phosphorus (22 vs 43 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.