Rules for household hazardous waste collection eventsThese rules are for the safety of the public and county staff conducting these events. Place your waste items in your trunk or truck bed prior to arriving at the event. Label your waste items (if possible) and make sure your waste items are easily distinguishable and separate from anything else in your trunk or truck bed. (if possible) and make sure your waste items are easily distinguishable and separate from anything else in your trunk or truck bed. Contact Hawai‘i County County Department of Environmental Management Recycling Specialist Chris Chin-Chance at 808-961-8554 or via email at recycle3@hawaiicounty.gov.