1
BSherwood Lake
Warren County, Wisconsin · 5.7 mi from Callaway Fork Lake
- +Two grade letters higher (D → B)
- ++2.8 ft water clarity
- +Lower phosphorus (17.8 vs 78.5 µg/L)
Cleaner Lakes Than Callaway Fork Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Callaway Fork Lake carries a Grade D (Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Sherwood Lake (Warren County, Grade B, 5.7 mi away) is the closest meaningful upgrade.
2
BLake 37
St. Charles County, Wisconsin · 4.6 mi from Callaway Fork Lake
- +Two grade letters higher (D → B)
- ++1.9 ft water clarity
- +Lower phosphorus (16 vs 78.5 µg/L)
3
DCallaway Fork Lake
St. Charles County, Wisconsin · 1.5 mi from Callaway Fork Lake
- +Higher overall water quality score
- ++1.2 ft water clarity
- +Lower phosphorus (39.5 vs 78.5 µg/L)
4
DLake Eleanor
Warren County, Wisconsin · 5.7 mi from Callaway Fork Lake
- +Higher overall water quality score
- +Lower phosphorus (45 vs 78.5 µg/L)
5
DLake Eleanor
Warren County, Wisconsin · 5.7 mi from Callaway Fork Lake
- +Higher overall water quality score
- +Lower phosphorus (46.5 vs 78.5 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.