1
BGlendale Lake
Pope County, Wisconsin · 15.4 mi from Dutchman Lake
- +Two grade letters higher (D → B)
- ++2.7 ft water clarity
- +Lower phosphorus (16 vs 37.5 µg/L)
Cleaner Lakes Than Dutchman Lake
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Dutchman Lake carries a Grade D (Poor) water quality score. Within 30 miles, 4 lakes hold a higher grade. Glendale Lake (Pope County, Grade B, 15.4 mi away) is the closest meaningful upgrade.
2
BOne Horse Gap Lake
Pope County, Wisconsin · 26.1 mi from Dutchman Lake
- +Two grade letters higher (D → B)
- ++1.9 ft water clarity
- +Lower phosphorus (17 vs 37.5 µg/L)
3
CVienna Correctional Center Lake
Johnson County, Wisconsin · 10.1 mi from Dutchman Lake
- +Higher grade (D → C)
- ++2.4 ft water clarity
- +Lower phosphorus (20 vs 37.5 µg/L)
4
CLake of Egypt
Williamson County, Wisconsin · 7.6 mi from Dutchman Lake
- +Higher grade (D → C)
- ++1.1 ft water clarity
- +Lower phosphorus (26 vs 37.5 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.