The MDC is conducting a regional household hazardous waste collection day at the Rocky Hill WPCF, 80 Goff Brook Lane, Rocky Hill, CT . The event will be held on May 13th from 8:00 AM to 1:00 PM . Residents of any of the following participating towns can participate in the MDC sponsored collection day: Bloomfield, East Granby, East Hartford, Hartford, Newington, Rocky Hill, West Hartford, Wethersfield, Windsor and Windsor Locks.