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LakeQuality

Cleaner Lakes Than Ml-Garrison Lake

3 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.

Ml-Garrison Lake carries a Grade B (Good) water quality score. Within 30 miles, 3 lakes hold a higher grade. Big Pine Lake (Aitkin County, Grade A, 3.5 mi away) is the closest meaningful upgrade.

1
A

Big Pine Lake

Aitkin County, Minnesota · 3.5 mi from Ml-Garrison Lake
  • +Higher grade (B → A)
  • ++4 ft water clarity
  • +Lower phosphorus (15 vs 26 µg/L)
2
A

Round Lake

Aitkin County, Minnesota · 1.6 mi from Ml-Garrison Lake
  • +Higher grade (B → A)
  • ++2 ft water clarity
  • +Lower phosphorus (11 vs 26 µg/L)
3
B

Ml-Nw Lake

Aitkin County, Minnesota · 2.6 mi from Ml-Garrison Lake
  • +Higher overall water quality score
  • ++6.3 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.

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