SWACO website http://www.swaco.org/Residents/HouseholdHazardousWaste.aspx? org/Residents/HouseholdHazardousWaste.aspx SWACO website HHW drop-off facility. Drop off household hazardous waste Solid Waste Authority of Central Ohio Solid Waste Authority of Central Ohio website http://www.swaco.org/Residents/HouseholdHazardousWaste.aspx free residential recycling for HHW http://www.swaco. Solid Waste Authority of Central Ohio Solid Waste Authority of Central Ohio Information about household waste collection