1
BNorth Lindstrom Lake
Chisago County, Minnesota · 2.1 mi from Mattson Lake
- +Higher overall water quality score
- ++3.3 ft water clarity
Cleaner Lakes Than Mattson Lake
3 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Mattson Lake carries a Grade B (Good) water quality score. Within 30 miles, 3 lakes hold a higher grade. North Lindstrom Lake (Chisago County, Grade B, 2.1 mi away) is the closest meaningful upgrade.
2
BSunrise Lake
Chisago County, Minnesota · 2.8 mi from Mattson Lake
- +Higher overall water quality score
- ++3.8 ft water clarity
3
BSchool Lake
Chisago County, Minnesota · 0.5 mi from Mattson Lake
- +Higher overall water quality score
- ++4 ft water clarity
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.