Nc Cheq Bay Lake

Nc Cheq Bay Lake sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in Wisconsin. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI value of 30 puts Nc Cheq Bay Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Among the 52 graded lakes in Bayfield County, Nc Cheq Bay Lake sits at rank 20, above the county median.

No invasive species are currently listed at Nc Cheq Bay Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Nc Cheq Bay Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.