midway landfill

24800 PACIFIC HWY S.

The Midway Landfill, located in Kent, Washington, is a 60 acre former gravel quarry that operated as a muncipal solid waste landfill from 1966 to 1983. About 3 million cubic yards of waste were deposited in the unlined landfill. The Midway Landfill was created primarily to accept demolition materials, wood waste, and other slowly decomposing materials, but other industrial wastes were also put in the landfill, including paint sludges, oily waste water and sludges, alkaline waste, and coolant. In 1983, the landfill was covered with silt and fine sands. In l985, combustible gas was detected in structures around the landfill. Contaminated groundwater was also found beyond the landfill boundary. Approximately 8,200 people live near the affected area. Two elementary schools and a community village are located within ½ mile of the site. Site Responsibility: This site is being addressed through municipal actions, with oversight by the Washington Department of Ecology (Ecology). In September 2000, EPA prepared a CERCLA Record of Decision that was issued by Ecology and EPA. Ecology will continue to oversee the cleanup.

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