INTERPRETASI KUALITAS AIR BAWAH TANAH DI KELURAHAN TANGKERANG TENGAH KECAMATAN MARPOYAN DAMAI MENGGUNAKAN METODE GEOLISTRIK DAN GEOKIMIA

Tangkerang Tengah Village is one of the residential locations with a densely populated area and has peat lithology. This condition causes the impact of underground water pollution due to domestic waste from housing. This study was aimed to determine the distribution pattern and qualities of its groundwater in Tangkerang Tengah village. The method used is the geoelectric of Wenner configuration and geochemistry by analyzing parameters of pH, turbidity, TDS, conductivity and salinity. The results of geoelectic method shows in the study area on the first track there were 5 layers with aquifers in the third layer at a depth of 9.26 – 17 meters while on the second track there were also 5 layers with aquifers in the fourth layer at a depth of 13.5 – 19.8 meters. The results of the geochemistry method shows two parameters that are not in accordance with the existing quality standards in the Regulation of the Minister of Health of the Republic of Indonesia No. 32 of 2017, namely the pH < 6.5 and salinity > 0.5 ppt.