Townsend Flowage Lake

Townsend Flowage Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Oconto County. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Trophically, Townsend Flowage Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. 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. Townsend Flowage Lake sits at rank 41 of 66 in Oconto County, in the lower half of the local distribution.

No invasive species are currently listed at Townsend Flowage Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Townsend Flowage Lake, 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.