1
CMozingo Lake Between Arms
Nodaway County, Wisconsin · 18.7 mi from Bilby Ranch Lake
- +Higher grade (D → C)
- ++1.1 ft water clarity
- +Lower phosphorus (37.7 vs 51.3 µg/L)
Cleaner Lakes Than Bilby Ranch Lake
1 higher-graded lake within 30 miles, ranked by grade improvement and proximity.
Bilby Ranch Lake carries a Grade D (Poor) water quality score. Within 30 miles, 1 lake holds a higher grade. Mozingo Lake Between Arms (Nodaway County, Grade C, 18.7 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.