Cleanfill : (a) A landfill that accepts only material that, when buried or placed, will not have an adverse effect on the environment; but (b) does not include a landfill that contains 5% or more (by weight) putrescible matter
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}