A balefill is a type of landfill (municipal solid waste disposal) where solid waste is compacted and baled, typically held together with steel strapping or wrapped in plastic.
This substantially reduces the volume of trash and hauling volume, allowing a better use of landfill space. It's especially advantageous in humid or wet areas as it produces a low volume of leachate.[1][2]
c07
was invoked but never defined (see the help page).