Hazardous Waste


Used oil is produced in many service and industrial activities such as auto repair, metal working, machine lubrication, refrigeration, and hydraulic equipment repair. Used oil can be recycled to make new lubricants or used as an industrial fuel when properly managed. When properly recycled, used oil is excluded from regulation as a hazardous waste. It is important that used oil be properly recycled to prevent potential pollution of the air, land, surface water, and groundwater. Used oil can contain cancer-causing agents, metal contaminants, and organic compounds that filter into the groundwater supply when the used oil is dumped or sprayed as a dust suppressant. Such contamination can result in serious hazards to human health.

Fact sheets 


These checklists are used by DEQ's used oil inspectors in the field to determine if a facility is following all of the applicable used oil and hazardous waste regulations. DEQ is providing these checklists so that the regulated community knows the type of regulations DEQ is looking for during inspections.