1
APipe Lake
Polk County, Wisconsin · mi from Ember Lake
- +Higher grade (B → A)
- ++3.8 ft water clarity
- +Lower phosphorus (14.5 vs 20.2 µg/L)
Cleaner Lakes Than Ember Lake
1 higher-graded lake within 30 miles, ranked by grade improvement and proximity.
Ember Lake carries a Grade B (Good) water quality score. Within 30 miles, 1 lake holds a higher grade. Pipe Lake (Polk County, Grade A, null 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.