Abstract
Escherichia coli bacteria and Total coliform in groundwater are often the leading cause of diarrhea cases. Some of the factors that cause groundwater pollution are the distance of the septic tank to the well, the presence of pollutants near the well, and poor construction. The purpose of this study was to determine the distribution pattern of E. coli and total coliform. The research was conducted in Tanah Sareal District, Bogor City. There are 11 wells monitored. Counting the number of E. coli and total coliform using APHA 9223 A method with Colilert’s IDEXX. The distribution pattern of E. coli bacteria and total coliform in shallow groundwater is supported by Geographic Information System (GIS) software that ArcGIS based on android. The result shows the number of E. coli 1 - >2500 MPN/100 ml and total coliform 3 - >2500 MPN/100 ml. The distribution of E. coli and total coliform toward to direction to the northwest is influenced by the distance of the well from the septic tank, the presence of pollutants, and population density.
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