Carroll County Household Hazardous Materials Disposal Day DMACC Carroll Campus Parking Lot, 9-11 a.m. Free disposal for any household in Carroll County. Hazardous materials include batteries and bulbs. For more information call 712.792.5001 or visit www.carrollcountylandfill.com. Apr-10-21 9:00 am - Apr-10-21 11:00 am