نبذة مختصرة : The research analyzing ground water contamination based on Geo-electrical methods near 2 point,that is in Cipta Karya street (without waste pile) and Srikandi street (with waste pile), KecamatanTampan Riau. Data was processed using Software Progress, with the results of processing in the formof depth, thickness and number of layers and the resistivity value. Has been done the results obtainedshowed that the resistivity value on Cipta Karya road without garbage pile was 57.10-4955.00Ohm.m at depth 0,00-346,00 Meter and on Srikandi street with garbage pile was 68.90-4008.00Ohm.m at depth 0,00-367,00 Meter. Geo-electrical data measurements in Cipta Karya and Srikandithere are 5 layers of soil, that is cover layer, clay loam layer, alluvium layer, sand layer and bedrocklayer. Based on the above resistivity values and depth, all points considered un polluted by leachetbecause the resistivity value is far above 10 Ohm.m (fresh water). Resistivity values indicate that theleachet does not seep into the soil and spread to swamps which are right next to the garbage pile(Srikandi road).
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