Uff Lake

Uff Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. clarity and phosphorus rate similarly, so there is no obvious single lever to pull on watershed management.

At a TSI of 56, Uff Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. 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. Within Polk County's 20 graded lakes, Uff Lake ranks 12 — below the local median, though not at the bottom.

No invasive species are currently listed at Uff Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Uff Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Uff Lake — most use is by shoreline residents and their guests. 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.