Greenleaf Lake

On the LakeGrade rubric Greenleaf Lake fails the cutoffs — a TSI of 66 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. A maximum depth of 18 ft puts Greenleaf Lake in the middle of Minnesota's depth distribution. At 238 acres, Greenleaf Lake fits the Minnesota median for monitored lakes, with 3.1 miles of shoreline. Within the 23 graded lakes of Meeker County, Greenleaf Lake sits at rank 23, near the bottom of the county list.

Greenleaf Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. Walleye are documented at Greenleaf Lake, one of 13 fish species on record for the lake. Public access is available — the lake is on the Minnesota PCA public-access list. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.