Laddie Lake

On the LakeGrade scale Laddie Lake grades a B, with clarity readings still being added and 22 µg/L of phosphorus placing it above the Minnesota median.

Mesotrophic conditions dominate at Laddie Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. At only 4 ft deep, Laddie Lake is shallow — wind keeps the water column mixed and sediment resuspension drives phosphorus levels harder to manage. Laddie Lake is small — 66 acres alongside 1.4 miles of shoreline — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Among the 24 graded lakes in Anoka County, Laddie Lake ranks 4 — in the top quartile locally.

No invasive species are currently listed at Laddie Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Laddie 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. 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.