Disposal is the placement of waste into or on the land. Disposal facilities are usually designed to permanently contain the waste and prevent the release of harmful pollutants to the environment. The most common method of solid waste disposal is by landfill, where waste is placed into the land. The EPA regulates the construction and management of landfills in order to prevent the contamination of the surrounding environment. Another waste disposal method used to manage liquid waste are injection wells in which liquids are disposed deep under ground. Injection wells are also carefully monitored to ensure that buried wastes do not affect drinking water resources.
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