East Alaska Lake

East Alaska Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.

A TSI near 45 places East Alaska Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. At 50 ft of maximum depth, East Alaska Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. The lake is compact at 50 acres, with partial shoreline records and little volume to buffer nutrient inputs. East Alaska Lake ranks 1 of 4 in Kewaunee County, putting it in the upper tier of locally monitored lakes.

Eurasian watermilfoil has been documented at East Alaska Lake, requiring shoreline management to keep dense mats from crowding native vegetation. The fishery is bass-led, with 4 documented species across the lake's records. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.