Cedar Island Lake

Cedar Island Lake grades an F: every scored parameter (clarity and phosphorus) rates poorly, placing it among the most stressed lakes monitored in Minnesota. clarity and phosphorus rate similarly, so there is no obvious single lever to pull on watershed management.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. 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. Cedar Island Lake ranks 78 of 95 in Hennepin County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Cedar Island Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Cedar Island Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. Ice-out has been logged at Cedar Island Lake more than two dozen times, putting the median around Apr 5 — a useful baseline for tracking climate trends. 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.