Oily water (bilge water)

Oily waste water usually does not need to be disposed as hazardous waste unless a hazardous substance (such as a solvent) has been added or the process involves heavy metals. You may be able to dispose of it into the sanitary sewer. For information about disposal options, contact the Hazardous Waste Help Line at 206-296-4692 or haz.waste@kingcounty.gov.