Sanitary landfills (Topical Term)

Out of the dump, c1995: p. opp. t.p. verso (the garbage dump in the center of Guatemala City)

TheFreeDictionary.com, Oct. 28, 2019 (garbage dump - a piece of land where waste materials are dumped; syn. dumpsite, rubbish dump, trash dump, wasteyard, waste-yard, dump)

Collins English dictionary online, Oct. 28, 2019 (garbage dump: a place where waste material is left [US]; in Britain, use rubbish tip)

Merriam-Webster dictionary online, Oct. 28, 2019 (dump: noun 1. a : an accumulation of refuse and discarded materials b : a place where such materials are dumped)

Cambridge dictionary online, Oct. 28, 2019 (refuse dump: a place where a town's rubbish is put)

MacFarlane, I.C. Gas explosion hazards in sanitary landfills and garbage dumps, 1970.

The garbage dumps are closed : the regional sanitary landfill is open, 1977.

Wikipedia, Oct. 28, 2019: Landfill (A landfill site (also known as a tip, dump, rubbish dump, garbage dump or dumping ground and historically as a midden) is a site for the disposal of waste materials by burial. Landfill is the oldest form of waste treatment, although the burial of the waste is modern; historically, refuse was simply left in piles or thrown into pits. Historically, landfills have been the most common method of organized waste disposal and remain so in many places around the world; The term landfill is usually shorthand for a municipal landfill or sanitary landfill. 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)

Britannica online, Oct. 28, 2019: Waste disposal (Refuse, or municipal solid waste (MSW), is nonhazardous solid waste from a community that requires collection and transport to a processing or disposal site. Refuse includes garbage and rubbish. Garbage is mostly decomposable food waste, and rubbish is mostly dry material such as glass, paper, cloth, or wood. Garbage is highly putrescible or decomposable, whereas rubbish is not. Trash is rubbish that includes bulky items such as old refrigerators, couches, large tree stumps, or construction and demolition waste (e.g., wood, drywall, bricks, concrete, and rebar [a steel rod with ridges for use in reinforced concrete]), all of which often require special collection and handling. Refuse is often deposited in sanitary landfills--that is, pits or other sites sealed with impermeable synthetic bottom liners where waste is isolated from the rest of the environment)