The 30-acre Industrial Excess Landfill (IEL) site is located in Stark County, Ohio. Prior to 1966, the area was used for mining sand and gravel. In 1966, the mining and excavation pit was converted into a landfill, which operated until 1980. During this time, the IEL received industrial waste primarily from the rubber industries in Akron, Ohio. An estimated 780,000 tons of solid waste and one million gallons of liquid waste were dumped onto the ground and into an evaporation lagoon on site. Besides industrial wastes, the landfill also accepted waste from hospitals, septic tank cleaning firms, and the general public. The landfill ceased operations in 1980, and was covered with soil. Landfill operations contaminated soil and groundwater with hazardous chemicals. Groundwater cleanup and monitoring are ongoing.