Onota Lake will be chemically treated with aquatic herbicides on Monday, June 22nd to control invasive Eurasian watermilfoil and other nuisance aquatic vegetation.  The lake will be closed to all water uses, (including, swimming, fishing and boating) on the day of treatment.  These uses may resume on Tuesday morning, June 23rd.   Use of the lake water for irrigation (watering lawns, gardens or plants of any kind) is prohibited for 14 days post treatment.  Printed posters warning of these and other temporary water use restrictions will be posted around each lake shoreline in advance of the treatment.  For more information, call 499-9344.