River Capacity for Sectoral Water Pollution Loads (Case Study: Cilamajang River) City of Tasikmalaya

Abstract

The increasing population in the city of Tasikmalaya has an impact on increasing the pace of development in various sectors. population growth and changes in land use have resulted in current environmental conditions in a number of areas in the city of Tasikmalaya showing a decline in quality. This is due to the increased use of natural resources including the use of surface water sourced from river water. Cilamajang River is a Ciwulan sub-basin located in the city of Tasikmalaya. The area of the Cilamajang watershed reaches 29.53 km2. Simulation of discharge using 15-year FJ Mock series method data provide a minimum discharge of the Cilamajang River of 474.95 Liters/second. Simulation of discharge and loading of pollution in 2018 has exceeded water quality standards according to PP 82 of 2001, BOD parameters are 131.72 mg/L, the COD parameter is 1.41 mg/L and the TSS parameter is 91.41 mg/L. This condition must receive serious attention for the local government in managing the water environment.