Owned by the City and County of Denver and operated by Waste Management, the 508-acre Lowry Landfill site is located near the intersection of Quincy Avenue and Gun Club Road in Arapahoe County, 15 miles southeast of downtown Denver. It was listed on the EPAs National Priorities List in 1984 due to soil and groundwater contamination that resulted from legal landfill operations there in the previous two decades.