East Sylvia Lake

East Sylvia Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Wright County. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. East Sylvia Lake is unusually deep for Minnesota at 78 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. At 669 acres, East Sylvia Lake fits the Minnesota median for monitored lakes, with 6.0 miles of shoreline. Among the 64 graded lakes in Wright County, East Sylvia Lake ranks 6 — in the top quartile locally.

Zebra mussels have been documented at East Sylvia Lake, which alters the filter-feeding balance and can paradoxically increase water clarity while disrupting the food web. Walleye are documented at East Sylvia Lake, one of 14 fish species on record for the lake. No formal public access is documented at East Sylvia Lake — most use is by shoreline residents and their guests. Ice-out has been recorded 14 times at East Sylvia Lake, with a median around Apr 16. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.