Dispose safely. Never pour thinners, solvents or paint down the drain or storm drain. Put them in tight-fitting jars or cans and have them picked up or delivered to a certified hazardous waste disposal site. Sanitation Districts of Los Angeles County has a Household Hazardous Waste and Electronic Waste Collection Program (HHW) that gives Los Angeles County residents a legal and cost-free way to dispose of unwanted household chemicals that cannot be disposed of in the regular trash. Follow this link to see when and where the program takes place next.