1
BLake Nehai Tonkayea
Chariton County, Wisconsin · 9.2 mi from Marceline Lake
- +Two grade letters higher (F → B)
- ++6.1 ft water clarity
- +Lower phosphorus (10 vs 110.9 µg/L)
Cleaner Lakes Than Marceline Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Marceline Lake carries a Grade F (Very Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Lake Nehai Tonkayea (Chariton County, Grade B, 9.2 mi away) is the closest meaningful upgrade.
2
BBrookfield Lake
Linn County, Wisconsin · 7.7 mi from Marceline Lake
- +Two grade letters higher (F → B)
- ++2.5 ft water clarity
- +Lower phosphorus (19.7 vs 110.9 µg/L)
3
CJo Shelby Lake
Linn County, Wisconsin · 21.4 mi from Marceline Lake
- +Two grade letters higher (F → C)
- +Lower phosphorus (48 vs 110.9 µg/L)
4
CMarceline City Lake New Nr. Dam
Chariton County, Wisconsin · 5.8 mi from Marceline Lake
- +Two grade letters higher (F → C)
- ++1.6 ft water clarity
- +Lower phosphorus (45.7 vs 110.9 µg/L)
5
CThomas Hill Lake @ Hwy T
Macon County, Wisconsin · 17.1 mi from Marceline Lake
- +Two grade letters higher (F → C)
- +Lower phosphorus (51 vs 110.9 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.