Suitability Analysis for Sanitary Landfill Site in the Province of Ifugao, Philippines

Abstract

Solid wastes generation is an alarming contemporary environmental issue. As part of national strategies in solid wastes management as stipulated in RA 9003 otherwise known as the Ecological Solid Wastes Management Act of 2001 is the establishment of sanitary landfills by the local government units. This study aims to assess and identify key suitable sites in the province of Ifugao in accordance with the sanitary landfill siting area requirement and generate sanitary landfill suitability map. This study utilized weighted overlay analysis of required maps based on landfill siting area requirement using ArcMap GIS software licensed to UPLB. Based from the generated sanitary landfill suitability map, there are areas fall on restricted, low, moderate, high, and very high suitability for sanitary landfill site in which large areas of Ifugao province fall on restricted zone. Only three municipalities have land areas that fall under the category of very high suitability, namely Alfonso Lista (1,287 ha), Aguinaldo (9 ha), and Hungduan (2 ha). Municipality of Alfonso Lista has the largest area fall on high suitability. Also, the top three municipalities in terms of land area under high suitability are Alfonso Lista (14, 232 ha), Aguinaldo (11, 907 ha), and Lagawe (5, 817 ha).