1
ABrickyard Lake
Carver County, Minnesota · 3.7 mi from Gaystock Lake
- +Two grade letters higher (F → A)
- ++14.4 ft water clarity
- +Lower phosphorus (14 vs 236 µg/L)
Cleaner Lakes Than Gaystock Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Gaystock Lake carries a Grade F (Very Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Brickyard Lake (Carver County, Grade A, 3.7 mi away) is the closest meaningful upgrade.
2
ACourthouse Lake
Carver County, Minnesota · 4.1 mi from Gaystock Lake
- +Two grade letters higher (F → A)
- ++19.3 ft water clarity
- +Lower phosphorus (14 vs 236 µg/L)
3
APiersons Lake
Carver County, Minnesota · 3.7 mi from Gaystock Lake
- +Two grade letters higher (F → A)
- ++9.3 ft water clarity
- +Lower phosphorus (19.5 vs 236 µg/L)
4
BFireman'S Lake
Carver County, Minnesota · 3.4 mi from Gaystock Lake
- +Two grade letters higher (F → B)
- ++10.1 ft water clarity
- +Lower phosphorus (23.5 vs 236 µg/L)
5
CBavaria Lake
Carver County, Minnesota · 4 mi from Gaystock Lake
- +Two grade letters higher (F → C)
- ++4.5 ft water clarity
- +Lower phosphorus (33 vs 236 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.