Tailing is one of waste that’s produced by mining activity at PT. Freepot Indonesia (PT FI) and it also called as sirsat, which is the representing abbreviation from sand in mining. This Sirsat is placed at Modada ( Modified Ajkwa Deposition Area), that’s an area which is modified and managed operation of sirsat and, broadly about 235 kilometres, limited by West Levee and East Levee. The Sy…