Abstract
The seawater intrusion into the groundwater in Tanah Mas residential North Semarang was investigated by chlorides ion levels from production wells and 3D electrical resistivity profiling. Tanah Mas residential area is a densely populated area located in the northern coastal city of Semarang. At the area, the exploitation of groundwater through production wells is quite high, that potential to produce the phenomenon of seawater intrusion. Analysis of groundwater samples from production wells was carried out as an early indication of the seawater intrusion in the study area. The profiles acquired across the study area, using a multi-electrodes acquisition system in a Wenner array configuration by electrode spacing of 10 m were used for the profiling. The results of groundwater chemical testing, there are three groundwater samples that has high levels of chloride ions. Three groundwater samples have the high levels of chloride ions that are in wells F, J and M. Apparent resistivity data of the 2D profiles over the models were collated to 3D data sets for each array studied. From 3D electrical resistivity profiling, obtained the distribution of seawater intrusion that has reached the north, east and south of Tanah Mas residential.
Highlights
Groundwater is a renewable natural resource that has important role towards living [1]
Groundwater samples were taken from 13 points wells that used by the people in the area
Seawater intrusion has small resistivity range between 0.0179 Ωm to 0.407 Ωm, for other resistivity value is thought to be a layer of clay and sand that has a range of 1 Ωm to 100 Ωm resistivity to clay and sand 1 Ωm to 1000 Ωm
Summary
Groundwater is a renewable natural resource that has important role towards living [1]. A number of factors can effect the quality of a groundwater reservoir, such as contamination by seawater intrusion or by toxic industrial chemical waste [2]. The increase of population, the extensive water use, the interbasin water transfer, and the climate change effect have and will impact the groundwater level change [3, 4]. It has been showed that groundwater over exploitation leads to seawater intrusion in coastal area [3, 5]. Seawater intrusion is a global issue, exacerbated by increasing demands for freshwater in coastal zones and predisposed to the influences of rising sea levels and changing climates [6]. Seawater intrusion is commonly associated to aquifers located in coastal regions of the world
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
