Environmental impact control of coal mining activities in Kandangan Lama, South Kalimantan through calculating post-mining costs

Abstract

Land clearing during mining activities can harm the environment, one of which is a change in the landscape that results in erosion, flooding, and climate change. This study aimed to determine the total cost of the post-coal mining plan and identify its components to control environmental impacts and climate change in Kandangan Lama, South Kalimantan. The method used to calculate the total cost of the post-mining plan is based on the Decree of the Ministry of Energy and Mineral Resources Republic of Indonesia with the number 1827 K/30/MEM/2018. The data sampling technique used purposive sampling through observation, interviews, and document study. The results showed that the post-mining area in this study was 3.46 ha. Direct cost, namely IDR 1,064,459,474.00, consists of land use, revegetation, demolition, restoration, social, cultural, economic development, maintenance, and monitoring. Also, the indirect cost is IDR 310,822,166.00, which consists of mobilization and demobilization costs, post-mining plan, contract administration and profits, and supervision costs. Thus, the total cost of the post-mining plan for the 3.46 ha was IDR 1,444,045,722.00. These costs are commensurate with the restoration of environmental conditions to control climate change to maintain environmental stability.