Eagle Lake

Eagle Lake earns a D — measurements through 2025 show persistent nutrient pressure that limits clarity through the summer. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

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. At only 11 ft deep, Eagle Lake is shallow — wind keeps the water column mixed and sediment resuspension drives phosphorus levels harder to manage. Eagle Lake covers 529 acres alongside partial shoreline records — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Eagle Lake ranks 7 of 7 in Racine County — at the lower end of the locally monitored distribution.

Eurasian watermilfoil is established at Eagle Lake, which can dampen recreational access and pressure the native plant community. The fishery includes walleye alongside the lake's other 5 documented species — a notable draw for Wisconsin anglers. 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.