1
CTemplene Lake Central Basin; Sherman Township
St. Joseph County, Wisconsin · 8.5 mi from Palmer Lake Central Basin; Colon Township
- +Higher grade (D → C)
- ++4 ft water clarity
Cleaner Lakes Than Palmer Lake Central Basin; Colon Township
1 higher-graded lake within 30 miles, ranked by grade improvement and proximity.
Palmer Lake Central Basin; Colon Township carries a Grade D (Poor) water quality score. Within 30 miles, 1 lake holds a higher grade. Templene Lake Central Basin; Sherman Township (St. Joseph County, Grade C, 8.5 mi away) is the closest meaningful upgrade.
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.