1
APiersons Lake
Carver County, Minnesota · 3.4 mi from Parley Lake
- +Two grade letters higher (F → A)
- ++8.4 ft water clarity
- +Lower phosphorus (19.5 vs 100 µg/L)
Cleaner Lakes Than Parley Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Parley Lake carries a Grade F (Very Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Piersons Lake (Carver County, Grade A, 3.4 mi away) is the closest meaningful upgrade.
2
BZumbra-Sunny Lake
Carver County, Minnesota · 3.2 mi from Parley Lake
- +Two grade letters higher (F → B)
- ++8.5 ft water clarity
- +Lower phosphorus (26.5 vs 100 µg/L)
3
CAuburn Lake
Carver County, Minnesota · 2.1 mi from Parley Lake
- +Two grade letters higher (F → C)
- ++5.6 ft water clarity
- +Lower phosphorus (31 vs 100 µg/L)
4
CWaconia Lake
Carver County, Minnesota · 2.4 mi from Parley Lake
- +Two grade letters higher (F → C)
- ++5.7 ft water clarity
- +Lower phosphorus (30 vs 100 µg/L)
5
CEast Auburn Lake
Carver County, Minnesota · 2.6 mi from Parley Lake
- +Two grade letters higher (F → C)
- ++3.4 ft water clarity
- +Lower phosphorus (57.5 vs 100 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.