Ensign Products Co. is a former rustproofing and lubricant manufacturer located in Cleveland, Ohio in a mixed residential and light industrial area. The company operated from 1967 until a fire destroyed the business on June 13, 2016. Cleveland Fire Department responded to the fire and the site was left abandoned. Subsequently, Ohio EPA conducted a complaint investigation of the facility on December 6, 2017 after the Cleveland Fire Department notified OEPA that oil-related waste remained in the building debris at the site. A Notice of Violation (NOV) was issued by OEPA on December 13, 2017 to the property owner requiring the owner to properly evaluate the waste to determine if it is a hazardous waste. On December 15, 2017, OEPA referred the site to USEPA for evaluation.