Jamer Lake

On the LakeGrade rubric Jamer Lake fails the cutoffs — a TSI of 62 and persistent algal pressure put it in the bottom tier. Clarity, phosphorus, and chlorophyll-a all 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. Jamer Lake ranks 212 of 215 in St. Louis County — at the lower end of the locally monitored distribution.

Jamer Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Jamer Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Jamer Lake — most use is by shoreline residents and their guests. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.