Quarry Lake

Quarry Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. 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.

A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Quarry Lake ranks 1 of 3 in Brown County — solidly in the upper half of the local distribution.

No invasive species are currently listed at Quarry Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Quarry Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. Multiple sampling years from the Wisconsin DNR Citizen Lake Monitoring Network back the grade, so the letter should hold steady absent a major watershed shift.