Candlewood Lake - Environmental Problems

Environmental Problems

The lake has an ongoing problem with the growth of eelgrass and Eurasian milfoil in shallower areas. Because of the silt kicked up by boats and the problem with water weeds and algae, the visibility in the lake is from 5 to 20 feet (6.1 m).

The level of the lake usually is lowered by 10 feet (3.0 m) over the winter in an attempt to freeze weeds. Attempts have been made to trim them with mechanical cutters on barges; this has had limited success. In December 2006, the Connecticut Department of Environmental Protection, working with members of the U.S. Environmental Protection Agency treated Candlewood Lake for its eelgrass and algae issues with an organic phosphate; the initial results appeared promising. However, the full effect of the treatment, and subsequent additional treatments will not be realized for several more years.

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