L St Germain Lk Site K @ S. Bay Lake

L St Germain Lk Site K @ S. Bay Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. L St Germain Lk Site K @ S. Bay Lake is unusually deep for Wisconsin at 53 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. At 972 acres, L St Germain Lk Site K @ S. Bay Lake fits the Wisconsin median for monitored lakes, with partial shoreline records. Within Vilas County's 191 graded lakes, L St Germain Lk Site K @ S. Bay Lake ranks 125 — below the local median, though not at the bottom.

Eurasian watermilfoil is established at L St Germain Lk Site K @ S. Bay Lake, which can dampen recreational access and pressure the native plant community. Walleye are documented at L St Germain Lk Site K @ S. Bay Lake, one of 6 fish species on record for the lake. Public access is available — the lake is on the Wisconsin DNR public-access list. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.