A landfill site (also known as tip, dump or rubbish dump and historically as a midden) 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 methods of organized waste disposal and remain so in many places around the world.

Landfills may include internal waste disposal sites (where a producer of waste carries out their own waste disposal at the place of production) as well as sites used by many producers. Many landfills are also used for waste management purposes, such as the temporary storage, consolidation and transfer, or processing of waste material (sorting, treatment, or recycling).

A landfill also may refer to ground that has been filled in with rocks instead of waste materials, so that it can be used for a specific purpose, such as for building houses. Unless they are stabilized, these areas may experience severe shaking or liquefaction of the ground in a large earthquake.

Typically, in non hazardous waste landfills, in order to meet predefined specifications, techniques are applied by which the wastes are:

The Residents are an American art collective best known for avant-garde music and multimedia works. The first official release under the name of The Residents was in 1972, and the group has since released over sixty albums, numerous music videos and short films, three CD-ROM projects and ten DVDs. They have undertaken seven major world tours and scored multiple films. Pioneers in exploring the potential of CD-ROM and similar technologies, The Residents have won several awards for their multimedia projects. Ralph Records, a record label focusing on avant-garde music, was started by The Residents.

Throughout the group's existence, the individual members have ostensibly attempted to operate under anonymity, preferring instead to have attention focused on their art output. Much outside speculation and rumor has focused on this aspect of the group. In public, the group appears silent and costumed, often wearing eyeball helmets, top hats and tuxedos - a long-lasting costume now recognized as their signature iconography. Their albums generally fall into two categories: deconstructions of Western popular music, or complex conceptual pieces, composed around a theme, theory or plot. They are noted for surrealistic lyrics and sound, disregard for conventional music composition, and the over the top, theatrical spectacle of their live performances.