Pacwawong Spring Pond

Pacwawong Spring Pond comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

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. A maximum depth of just 14 ft means sediment-bound phosphorus releases back into the water column whenever wind stirs the bottom — a classic shallow-lake dynamic. At 13 acres, Pacwawong Spring Pond sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Within the 52 graded lakes of Sawyer County, Pacwawong Spring Pond sits at rank 43, near the bottom of the county list.

No invasive species are currently listed at Pacwawong Spring Pond — the lake remains off the Wisconsin infested-waters roster. Walleye are documented at Pacwawong Spring Pond, one of 5 fish species on record for the lake. 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.