Round Lake

Round Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Minnesota norms.

A TSI near 47 places Round Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. 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 Anoka County's 24 graded waters, Round Lake sits at rank 3, near the top of the local distribution.

No invasive species are currently listed at Round Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Round Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. A documented public access point at Round Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is supported by multiple sampling years from Minnesota PCA volunteers and partner agencies, giving the letter a reasonably stable foundation.