Follow Up Treatment for Eurasian Watermilfoil Scheduled for Crystal Lake

Hey and Associates, Inc. the company assisting the Crystal Lake Park District on the management of Crystal Lake, will be applying a herbicide to help control Eurasian watermilfoil, a non-native aquatic plant. The areas of treatment will be located offshore, in deeper waters around the "No Wake" buoys, where stands of the invasive species have been identified during aquatic plant surveys of the lake. The areas of treatment will include areas west of Main Beach, areas along the north shore buoys and areas in West Bay of Crystal Lake. Treatment is planned for Friday, August 2, 2013.

Approximately 8 acres are to be treated with Navigate(tm), a granular form of aquatic herbicide.Fishing will not be restricted after application. However, please do not use lake water from the specific areas of treatment for irrigating plants until the concentration levels reach <.10 ppm, or approx. 21 days. Do not use water from the specific areas of treatment for drinking water (human or pet) until concentration levels reach <.07ppm, or approx. 21 days. Finally, do not swim in the specific areas of treatment for a minimum of 24 hours after treatment occurs.Eurasian watermilfoil is an aggressive, non-native weed that chokes out native plants and can become so dense that it restricts boating, fishing and swimming. It has been determined through lake studies that Eurasian watermilfoil presents an ecological and recreational nuisance in the West Bay and along the eastern shoreline of the lake. For more information contact Hey and Associates, Inc. at 847-740-0888.