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LakeQuality

Cleaner Lakes Than Loto Ha Ha Tonka Branch Mouth Lake

1 higher-graded lake within 30 miles, ranked by grade improvement and proximity.

Loto Ha Ha Tonka Branch Mouth Lake carries a Grade C (Fair) water quality score. Within 30 miles, 1 lake holds a higher grade. Racetrack Hollow @ Hwy. D Lake (Camden County, Grade C, 0.9 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.

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