Abstract
This paper introduces the concepts of safety and peace of mind as they relate to controlled final disposal sites (landfills) as follows :
1) An absolute requirement for landfill safety is that waste and leachate should not be released off-site, leachate should be allowed to flow consistently following effluent standards; 2) Safety at landfills is defined by scientific indicators and risk management. The former is based on the three ordinance criteria and the latter is founded on environmental assessments; 3) Peace of mind at a landfill is based on the legal system and full confidence in business operators, which is founded on certainty regarding their legal compliance and on the financial base of operators. Operators must be responsible regarding execution of maintenance in accordance with legal systems and must relate to (profit ≫ income − expenses) according to business development outlooks; and 4) Future study is needed to clarify determination methods for stabilization and prediction methods on the period required for stabilization.
