Trident Lake

Trident Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade.

Mesotrophic conditions dominate at Trident Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. At only 14 ft deep, Trident Lake is shallow — wind keeps the water column mixed and sediment resuspension drives phosphorus levels harder to manage. Trident Lake is small — 93 acres alongside 2.6 miles of shoreline — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Trident Lake ranks 116 of 142 in Lake County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Trident Lake — the lake remains off the Minnesota infested-waters roster. Walleye are documented at Trident Lake, one of 9 fish species on record for the lake. No formal public access is documented at Trident Lake — most use is by shoreline residents and their guests. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.