1
AGreen Lake
Washington County, Wisconsin · 6.7 mi from Cty E Pond
- +Higher grade (B → A)
- ++18.9 ft water clarity
- +Lower phosphorus (16.6 vs 33.6 µg/L)
Cleaner Lakes Than Cty E Pond
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Cty E Pond carries a Grade B (Good) water quality score. Within 30 miles, 5 lakes hold a higher grade. Green Lake (Washington County, Grade A, 6.7 mi away) is the closest meaningful upgrade.
2
ALake Ellen
Sheboygan County, Wisconsin · 7.7 mi from Cty E Pond
- +Higher grade (B → A)
- ++17.2 ft water clarity
- +Lower phosphorus (12.4 vs 33.6 µg/L)
3
AForest Lake
Fond du Lac County, Wisconsin · 9.1 mi from Cty E Pond
- +Higher grade (B → A)
- ++33.6 ft water clarity
- +Lower phosphorus (14.2 vs 33.6 µg/L)
4
BRandom Lake
Sheboygan County, Wisconsin · 3.3 mi from Cty E Pond
- +Higher overall water quality score
- ++2.5 ft water clarity
- +Lower phosphorus (21.8 vs 33.6 µg/L)
5
BSandhill Lake
Ozaukee County, Wisconsin · 6.5 mi from Cty E Pond
- +Higher overall water quality score
- ++12.3 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.