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All Journal Gorontalo Journal of Forestry Research
Marlon Ivanhoe Aipassa
Magister Ilmu Lingkungan Universitas Mulawarman Fakultas Kehutanan Universitas Mulawarman
Agriculture, Biological Sciences & Forestry

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THE IMPACT OF MINING EXCAVATIONS (VOIDS) ON THE WATER QUALITY MANAGEMENT IN THE NORTH KALIMANTAN PROVINCE Sandy Ardian; Marlon Ivanhoe Aipassa; Reva Oktaviani; Ndan Imang; Shalaho Dina Devy; Heru Ivanhoe Susilo; Rochadi Kristiningrum Kristiningrum; Edy Kristiningrum Sarwono; Dawamul Ivanhoe Arifin
Gorontalo Journal of Forestry Research VOLUME 7 NOMOR 1 TAHUN 2024 GORONTALO JOURNAL OF FORESTRY RESEARCH
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32662/gjfr.v7i1.3304

Abstract

The presence of a coal mining business permit not only has an economic impact but can also cause environmental problems. The objectives of this research are (1) to analyze the impact of PT XXX's overflowing voids on water management and water quality, and (2) to carry out spatial analysis, mapping and estimation of coal reserves that cannot be extracted by PT YYY. The research method is a case study selected by purposive sampling at two companies in North Kalimantan Province using water quality test analysis with grab sampling and estimating the potential loss of coal reserves using the rule of gradual changes and rule of nearest point methods as well as aerial photography. The research results show that in general the water use meets Class 3, namely: Water that can be used for cultivating freshwater fish, animal husbandry, water for irrigating crops, and/or other uses that require the same water quality as that use. Apart from that, PT XXX has built an overflow water channel into the PT YYY area without management approval, thus having a negative impact on PT YYY's mining plans which are dominated by peat land. Map of PT YYY's lost coal potential of 714,688 MT with an affected area of 15.16 hectares with details of 6.4 ha being the void area included in PT YYY's IUP area, 1.86 ha being the road and buffer zone area and 6.9 ha is a potential lost area of PT YYY.
Co-Authors Dawamul Ivanhoe Arifin Devy, Shalaho Dina Edy Kristiningrum Sarwono Heru Susilo Ndan Imang Reva Oktaviani Rochadi Kristiningrum Kristiningrum Sandy Ardian