Newman Lake

On the LakeGrade rubric, Newman Lake pulls an A: clarity at 17.1 ft and 6 µg/L of phosphorus put it in the top bracket for Minnesota. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. Newman Lake is unusually deep for Minnesota at 63 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. The lake is compact at 45 acres, with 1.2 miles of shoreline and little volume to buffer nutrient inputs. Among the 78 graded lakes in Hubbard County, Newman Lake sits at rank 27, above the county median.

Newman Lake has no invasive species recorded in Minnesota state databases as of 2025, though prevention practices still apply at all access points. 3 fish species are documented at Newman Lake, a mixed warm-water community typical for Minnesota lakes of this size. A documented public access point at Newman Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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.