Abstract
The aim of thie research is to determine the quality of groundwater in Palmerah District, West Jakarta (6°11’24.32”S 106°47’49.88”E) by correlation between the depth of the well and the distance of septic tank with the distribution of Escherichia coli. The presence of E. coli is measured by using the Most Probable Number method. The distribution pattern of the E. coli was processed by Surfer Program. Research was conducted in April upto July 2017. The highest amount of E. coli always found in the Jati Pulo and Palmerah sub-district which is >1100 MPN/100 ml; while the lowest amount of E. coli found in the Kemanggisan sub-district and Slipi sub-district which is <3.0 MPN/100 ml; with every samples is obtained on the condition of pH 5 – 7, DO 0.81 – 7.65, and water temperature of 26 – 34°C. Refering to the Ministry of Health Regulation No. 492 of 2010 on the requirements of drinking water quality; it is shown that the groundwater in Palmerah District is not feasible to be directly consumed. This research provides the initial information to local sanitation to the distribution pattern of E. coli within the dense residential area.
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