1
CBryant Lake
Hennepin County, Minnesota · 1.8 mi from Arrowhead Lake
- +Higher grade (D → C)
- ++7.8 ft water clarity
- +Lower phosphorus (35 vs 83 µg/L)
Cleaner Lakes Than Arrowhead Lake
2 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Arrowhead Lake carries a Grade D (Poor) water quality score. Within 30 miles, 2 lakes hold a higher grade. Bryant Lake (Hennepin County, Grade C, 1.8 mi away) is the closest meaningful upgrade.
2
CIdlewild Lake
Hennepin County, Minnesota · 2.4 mi from Arrowhead Lake
- +Higher grade (D → C)
- ++3.9 ft water clarity
- +Lower phosphorus (37 vs 83 µg/L)
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.