Assessment of Groundwater Quality to Achieve Sustainable Development in Semarang Coastal Areas

Semarang is growing fast particularly in the industrial and commercial sectors. Hydrogeological mapping and spatial analysis were used to assess groundwater quality in Semarang coastal areas. Results conduct that water table varies from 0.03 to 17.5 m depth and flows from the south to the north which is following topography i.e. higher to the south. pH values range from 6.05 to 8.17 while DO is up to 1.5 mg/L. EC values reach up to 6,370 mu S/cm in the north as well as the maximum salinity value is around 3,600 mg/L related to the excessive groundwater used and sea water intrusion.