Coes Reservoir is treated to control Water Chestnut

August 11 day of treatmentApplying Clear CastApplying Clear CastAugust 17 - 6 days after treatment Despite mechanical harvesting to remove weeds in June, the water chestnut in the northern end of Coes is very thick, and extent/area covered seems to have expanded from last year. The city decided to use a chemical treatment rather than …