Chilton Millpond

Chilton Millpond earns a D — measurements through 2023 show persistent nutrient pressure that limits clarity through the summer. Phosphorus is the parameter holding the grade back — runoff from the surrounding watershed appears to keep nutrient levels elevated through the summer.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. At only 7 ft deep, Chilton Millpond is shallow — wind keeps the water column mixed and sediment resuspension drives phosphorus levels harder to manage. The lake is compact at 11 acres, with partial shoreline records and little volume to buffer nutrient inputs. Among the 2 graded lakes in Calumet County, Chilton Millpond sits at rank 1, above the county median.

No invasive species are currently listed at Chilton Millpond — the lake remains off the Wisconsin infested-waters roster. The fishery is bass-led, with 5 documented species across the lake's records. A documented public access point at Chilton Millpond 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.