What is the cleanest lake near Whitewater Lake?

Turtle Lake in Walworth County holds a Grade A water quality score and is 2.4 miles from Whitewater Lake.

Why is Whitewater Lake not Grade A?

Whitewater Lake holds Grade B, with about 13.1 ft of water clarity and 26.2 µg/L of phosphorus. The grade reflects measured water quality against Metropolitan Council thresholds. Cleaner alternatives nearby score higher on clarity, phosphorus, or chlorophyll-a.

Are these recommendations based on real data?

Yes. Every grade is calculated from EPA Water Quality Portal samples for the lake. Recommendations are limited to lakes within 30 miles of Whitewater Lake in Wisconsin, with strictly higher numeric grade scores and sufficient monitoring data.

Cleaner Lakes Than Whitewater Lake, Top 4 Within 30 Miles, LakeQuality

Cleaner Lakes Than Whitewater Lake

4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.

Whitewater Lake carries a Grade B (Good) water quality score. Within 30 miles, 4 lakes hold a higher grade. Turtle Lake (Walworth County, Grade A, 2.4 mi away) is the closest meaningful upgrade.

Turtle Lake

Walworth County, Wisconsin · 2.4 mi from Whitewater Lake

+Higher grade (B → A)
++23 ft water clarity
+Lower phosphorus (14.5 vs 26.2 µg/L)

Green Lake

Walworth County, Wisconsin · 6.7 mi from Whitewater Lake

+Higher grade (B → A)
++29.6 ft water clarity
+Lower phosphorus (10.5 vs 26.2 µg/L)

Middle Lake

Walworth County, Wisconsin · 6.8 mi from Whitewater Lake

+Higher grade (B → A)
++21.4 ft water clarity
+Lower phosphorus (12.3 vs 26.2 µg/L)

Mill Lake

Walworth County, Wisconsin · 6.8 mi from Whitewater Lake

+Higher grade (B → A)
++11.5 ft water clarity
+Lower phosphorus (15.3 vs 26.2 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.