Peters Lake

On the LakeGrade rubric, Peters Lake pulls an A: clarity at 18.3 ft and 20 µg/L of phosphorus put it in the top bracket for Wisconsin. 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.

Mesotrophic conditions dominate at Peters Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake is compact at 58 acres, with partial shoreline records and little volume to buffer nutrient inputs. Among the 34 graded lakes in Walworth County, Peters Lake sits at rank 13, above the county median.

Eurasian watermilfoil is established at Peters Lake, which can dampen recreational access and pressure the native plant community. The fishery is bass-led, with 3 documented species across the lake's records. 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.