1
BYenruogis Pond
Keokuk County, Wisconsin · 19.6 mi from Lake Darling Max Depth
- +Two grade letters higher (F → B)
- ++8.3 ft water clarity
Cleaner Lakes Than Lake Darling Max Depth
1 higher-graded lake within 30 miles, ranked by grade improvement and proximity.
Lake Darling Max Depth carries a Grade F (Very Poor) water quality score. Within 30 miles, 1 lake holds a higher grade. Yenruogis Pond (Keokuk County, Grade B, 19.6 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.