Crescent Lake

On the LakeGrade rubric, Crescent Lake pulls an A: clarity at 14.0 ft and 13 µg/L of phosphorus put it in the top bracket for Wisconsin. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Mesotrophic conditions dominate at Crescent Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. 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 134 graded lakes in Oneida County, Crescent Lake ranks 23 — in the top quartile locally.

No invasive species are currently listed at Crescent Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Crescent Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.