Cleaner Lakes Than Mill Creek Lake
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Mill Creek Lake carries a Grade F (Very Poor) water quality score. Within 30 miles, 4 lakes hold a higher grade. Dog Creek Lake (O'Brien County, Grade D, 10.8 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.