Nutrient Sampling Point Lake

Nutrient Sampling Point Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Waupaca County. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI value of 33 puts Nutrient Sampling Point Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. A maximum depth of 33 ft puts Nutrient Sampling Point Lake in the middle of Wisconsin's depth distribution. At 72 acres, Nutrient Sampling Point Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Nutrient Sampling Point Lake ranks 22 of 27 in Waupaca County — at the lower end of the locally monitored distribution.

Nutrient Sampling Point Lake has at least one documented invasive species (Banded Mystery Snail), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. Walleye are documented at Nutrient Sampling Point Lake, one of 4 fish species on record for the lake. Public access is available — the lake is on the Wisconsin DNR public-access list. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.