Estimating The Distribution of Sea Water Intrusion in Sengkubang Village Based on The Resistivity Value

The fulfillment of clean water needs in Sengkubang Village is done by utilizing groundwater, which some locations still has a brackish to salty. This situation one indication seawater intrusion into groundwater because coastal area. study aims estimate the distribution based on subsurface resistivity value. method used with dipole-dipole configuration. Measurements field apply six lines length 55 m and smallest electrode distance 5 m. each line from coastline approximately 410 m, 485 560 635 710 785 interpretation results show that at area value 0.223 Ωm - 5.03 depth 0.854 10.9 layer site composed sand, sandy clay, gravel sand mixed silt. unconfined aquifer layer, interpreted as thought have experienced coastline.