1
BRound Lake
Anoka County, Minnesota · 4.3 mi from Champlin Mill Pond
- +Two grade letters higher (D → B)
- ++3.3 ft water clarity
- +Lower phosphorus (19 vs 184.6 µg/L)
Cleaner Lakes Than Champlin Mill Pond
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Champlin Mill Pond carries a Grade D (Poor) water quality score. Within 30 miles, 4 lakes hold a higher grade. Round Lake (Anoka County, Grade B, 4.3 mi away) is the closest meaningful upgrade.
2
BCrooked Lake
Anoka County, Minnesota · 2.9 mi from Champlin Mill Pond
- +Two grade letters higher (D → B)
- ++2.5 ft water clarity
- +Lower phosphorus (24 vs 184.6 µg/L)
3
BUnnamed Lake
Hennepin County, Minnesota · 4.5 mi from Champlin Mill Pond
- +Two grade letters higher (D → B)
- +Lower phosphorus (17.5 vs 184.6 µg/L)
4
CGrass Lake
Anoka County, Minnesota · 4.1 mi from Champlin Mill Pond
- +Higher grade (D → C)
- +Lower phosphorus (23 vs 184.6 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.