Potensi Pencemaran Bahan Bakar Minyak (BBM) terhadap Air Tanah Daerah Pleret, Bantul (Studi Kasus SPBU 44.557.01 Yogyakarta)

Abstract

Groundwater is an important aspect that is widely used in life. One source of groundwater pollution in the community is the leakage of underground storage tanks or fuel oil pipelines. This study aims to determine the zoning of potential groundwater pollution by fuel in the area around gas station 44.557.01 Yogyakarta. The research method used is the LeGrand method which is specifically used for pollution assuming the source of pollution comes from one point. This method considers five physical environmental factors, namely the depth of the groundwater table, absorption capacity in the unsaturated zone, aquifer permeability, slope of the groundwater table, and horizontal distance to the gas station. Determination of groundwater pollution potential is based on the total score of the five factors by considering the direction of groundwater flow. The results showed that fuel pollution to groundwater in the area around Gas Station 44.557.01 Yogyakarta can be classified into 3 categories: low (79% area), medium (8% area), and high (13% area).