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In 1961, Maricopa County began operating a landfill in Hassayampa, covering 47 acres on the west side of the Hassayampa River. For an 18-month period from April 20, 1979, to October 28, 1980, the site was used to dispose of hazardous waste. As a result, the 10 acre portion of the landfill was classified as a Superfund site in 1987. Site cleanup ...
This is a list of Superfund sites in Arizona designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up ...
This is a list of landfills in the United States.A landfill is a site for the disposal of waste materials by burial and is the oldest form of waste treatment.Historically, landfills have been the most common method of organized waste disposal and remain so in many places around the world.
It was declared a Superfund site in 1983 after industrial solvents were discovered to have contaminated the groundwater in an approximately 13-square-mile (34 km 2) area. It is one of the largest EPA sites in terms of volume of groundwater treated, estimated at 61.3 billion US gallons (232,000,000 m 3 ).
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It has been designated a National Historic Landmark, underlining the significance of waste disposal in urban society. The first federal legislation addressing solid waste management was the Solid Waste Disposal Act of 1965 (SWDA) [1] that created a national office of solid waste. By the mid-1970s, all states had some type of solid waste ...
These facilities were first introduced early in the 20th century, but gained wide use in the 1960s and 1970s, in an effort to eliminate open dumps and other "unsanitary" waste disposal practices. The sanitary landfill is an engineered facility that separates and confines waste. Sanitary landfills are intended as biological reactors (bioreactors ...
Maricopa County (/ ˌ m ær ɪ ˈ k oʊ p ə /) is a county in the south-central part of the U.S. state of Arizona.As of the 2020 census the population was 4,420,568, [1] or about 62% of the state's total, making it the fourth-most populous county in the United States and the most populous county in Arizona, and making Arizona one of the nation's most centralized states.