ANALYSIS OF FACTORS DETERMINING MANAGEMENT PERIOD AFTER CONTROLLED LANDFILL SITES REACH FULL CAPACITY

Abstract

 After a controlled (regulated) waste landfill site reaches full capacity, proper site management is still required by law until the site is officially released for other uses. Japan's Waste Management Act requires landfill site owners to set aside adequate funds to pay for site management until that time. However, due to limited information, it is often difficult to estimate the adequate length (years) of the management period, which is crucial to calculate the reserve funds required. If the period ends up being longer than expected, reserve funds might be depleted prematurely. It is therefore important to have a good understanding of the influencing factors. This paper uses multiple regression analysis to examine factors that determine the length of management period of landfill sites for hazardous wastes, based on the results of a survey to municipalities and entities that own landfill sites.