Graber Pond

Graber Pond earns an F: 231 µg/L of phosphorus and clarity readings still being added signal heavy nutrient loading from the surrounding watershed. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI above 70 puts Graber Pond in hypereutrophic territory: visible blooms are common, and clarity rarely climbs even in early summer. 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. Graber Pond ranks 21 of 21 in Dane County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Graber Pond — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Graber Pond, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.