What is the cleanest lake near Dyers Lake?

Su19 Lake in Cook County holds a Grade A water quality score and is 12.3 miles from Dyers Lake.

Why is Dyers Lake not Grade A?

Dyers Lake holds Grade C, with about 4.9 ft of water clarity and 21.5 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 Dyers Lake in Minnesota, with strictly higher numeric grade scores and sufficient monitoring data.

Cleaner Lakes Than Dyers Lake, Top 5 Within 30 Miles, LakeQuality

Cleaner Lakes Than Dyers Lake

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

Dyers Lake carries a Grade C (Fair) water quality score. Within 30 miles, 5 lakes hold a higher grade. Su19 Lake (Cook County, Grade A, 12.3 mi away) is the closest meaningful upgrade.

Su19 Lake

Cook County, Minnesota · 12.3 mi from Dyers Lake

+Two grade letters higher (C → A)
++32.8 ft water clarity

Wilson Lake

Lake County, Minnesota · 11 mi from Dyers Lake

+Two grade letters higher (C → A)
++5.4 ft water clarity
+Lower phosphorus (13 vs 21.5 µg/L)

Ninemile Lake

Lake County, Minnesota · 5.9 mi from Dyers Lake

+Higher grade (C → B)
++2 ft water clarity
+Lower phosphorus (16 vs 21.5 µg/L)

Crooked Lake

Lake County, Minnesota · 7.2 mi from Dyers Lake

+Higher grade (C → B)
+Lower phosphorus (11 vs 21.5 µg/L)

South Wigwam Lake

Lake County, Minnesota · 11.9 mi from Dyers Lake

+Higher grade (C → B)
+Lower phosphorus (15 vs 21.5 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.