1
ASpectacle Lake
Isanti County, Minnesota · 5.6 mi from South Stanchfield Lake
- +Two grade letters higher (F → A)
- ++11.3 ft water clarity
- +Lower phosphorus (11 vs 119 µg/L)
Cleaner Lakes Than South Stanchfield Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
South Stanchfield Lake carries a Grade F (Very Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Spectacle Lake (Isanti County, Grade A, 5.6 mi away) is the closest meaningful upgrade.
2
ASandy Lake
Sherburne County, Minnesota · 11.2 mi from South Stanchfield Lake
- +Two grade letters higher (F → A)
- ++11.6 ft water clarity
- +Lower phosphorus (12.5 vs 119 µg/L)
3
CGreen Lake
Isanti County, Minnesota · 5 mi from South Stanchfield Lake
- +Two grade letters higher (F → C)
- ++2.6 ft water clarity
- +Lower phosphorus (44 vs 119 µg/L)
4
CLory Lake
Isanti County, Minnesota · 7.5 mi from South Stanchfield Lake
- +Two grade letters higher (F → C)
- ++3.5 ft water clarity
- +Lower phosphorus (41 vs 119 µg/L)
5
DLittle Stanchfield Lake
Isanti County, Minnesota · 11.3 mi from South Stanchfield Lake
- +Higher grade (F → D)
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.