Casey Lake

Casey Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. 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. Casey Lake is a shallow lake at 4 ft maximum depth, which means it warms quickly, mixes constantly, and amplifies nutrient inputs. At 12 acres, Casey Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Among the 49 graded lakes in Ramsey County, Casey Lake sits at rank 21, above the county median.

No invasive species are currently listed at Casey Lake — the lake remains off the Minnesota infested-waters roster. The fishery is panfish-dominated — bluegill, crappie, and sunfish among the 4 species documented for the lake. No formal public access is documented at Casey 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.