Assessment of Groundwater Quality Based on Geoelectric and Hydrogeochemical Paremeters around Slaughterhouses of Pekanbaru City, Indonesia

Abstract

Groundwater management in an industrial environment is very necessary. This water is a source of consumption and sanitation for the community. The presence of the slaughterhouse industry near residential areas has the potential to pollute underground water if the waste is not managed properly. In Pekanbaru city, there is a slaughterhouse industry that operates around residential areas. The purpose of this study is to investigate groundwater contamination around the slaughterhouse. This study uses the integration of geoelectric and hydrogeochemical methods to investigate the level of groundwater contamination in several locations in the study area to see the sustainability of underground water both in quality and quantity. Based on the geoelectric method the flow pattern and depth of the aquifer have been successfully analyzed at intervals of 7.5 m to 11 m. and the results obtained from the geochemical method that the value of pH, BOD, COD, and NH3 is still below the standard threshold. Water quality index (WQI) is still classified as "good"with a score range of 25-50. Seemly, the slaughterhouse has implemented a waste management system properly, so it does not pollute the surrounding underground and surface water.