The herbicide treatment of the lake was completed on Thursday, May 7th.
Water use restrictions are :
Swimming/bathing is prohibited for 24 hours after treatment;
use of the water for drinking, culinary or food processing purposes is prohibited until notification that concentration levels of the herbicide are below 50 bbp;
use of the water for irrigation is prohibited for 21 days, or until notification that concentrations are below 100 ppb.