| Abstract |
Liquid Disposal, Inc. (LDI) is a 6.8-acre site located in a residential/light industrial area in Shelby Township, Michigan. LDI is bordered by the Clinton River and its flood plain, the Shadbush Tract Native Study Area and automobile junkyards. The site was first used as a source of sand and gravel prior to becoming a landfill around 1964. Between 1968 and 1982, LDI operated as a commercial incinerator of liquid waste. During this time, the site contained a large volume of hazardous substances stored in the waste oil and scrubber lagoons, ash sludge piles, above and below ground storage tanks and in 55-gallon drums. Since 1982, EPA has completed four immediate removal actions. As a result of these actions, no surface waste sources exist at the site. However, several hundred waste sample jars, old incinerator parts, emptied tanks, wooden pallets, miscellaneous containers and other debris remain onsite. Currently, on and offsite soil and ground water (the upper aquifer) are contaminated with a wide variety of organic and inorganic chemicals. Onsite concentrations are generally higher than offsite. The primary contaminants of concern include: VOCs, semi-volatile organics, PCBs, barium, cadmium and lead. |
