Saturday's household hazardous waste collection event in Brookfield closed early, at noon, due to the heat and humidity.  Bethel First Selectman Matt Knickerbocker says a couple of volunteers had to be taken to the hospital due to heat exhaustion.  Brookfield Police asked HRRA to close the regional event early for safety reasons.  Bethel SummerFest and CityCenter Danbury's fourth annual Country Music & Food Truck Rally had been cancelled before the events started.