Хотя, наверное, и просто landfill можно.
http://www.google.ru/#hl=ru&newwindow=1&tbo=d&sclient=psy-ab&q="reclamation+of+the+landfill"+site:uk&oq="reclamation+of+the+landfill"+site:uk&gs_l=hp.3...34442.37558.10.37757.16.15.1.0.0.6.212.2009.3j11j1.15.0...0.0...1c.1.rAi8QcFknA4&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.&fp=fc4254b0eb8d991c&bpcl=39468505&biw=991&bih=573

Раньше они и на русский можно было переводить "свалка"
Но произошли законодательные изменения в терминах
Лэндфилл так и остался, а свалка стала звучать благозвучней.

As explained by the National Solid Waste Management Association, there are approximately 1,700 landfills in use. The number of landfills decreases as the size of them increases. Landfills are highly regulated waste depositories run by a government agency that must adhere to waste treatment laws and processing regulations. They have a government-mandated groundwater policy in place. The garbage in a landfill must be buried (covered with dirt) on a daily basis.

There are different types of landfills, including landfills for industrial garbage, landfills for municipal solid waste (i.e., household items and waste) and landfills for construction waste. Many newer landfills offer high levels of recycling facilities.

Dumps are considered illegal because they do not adhere to government regulations regarding the burying of waste and the controlling of groundwater contamination. Many dumps still exist and are simply that -- places to dump things with no mind for what happens to the waste. Many landfills were once dumps or were constructed on the sites of former dumps.