PEMETAAN SEBARAN JUMLAH BAKTERI Escherichia coli BERDASARKAN KONSTRUKSI DAN JARAK SUMUR GALI DI WONOCATUR, BANGUNTAPAN, BANTUL TAHUN 2024

2024-05-28

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Background: Water is a basic need that must exist for the continuity of human daily life. Water has 3 requirements that must be met, namely physical, chemical and biological requirements. Most people use dug well water to meet their daily water needs such as cooking, washing and drinking water. Escherichia coli bacteria (E. coli) is one of the bacteria found in human feces. Pollution can occur due to the distance between the well and the septic tank being less than 10 meters, well construction that does not meet the requirements, not having waste water disposal facilities (SPAL), and being close to other sources of pollution such as livestock pens. Research Objective: Knowing the distribution map of the number of Escherichia coli bacteria based on the construction and distance of wells in Wonocatur, Banguntapan, Bantul Method: The type of research used is descriptive research, with an observational study design. The approach that will be used is a prospective approach from primary data related to the construction and distance of wells in Wonocatur, Banguntapan, Bantul through geographic information system (GIS) based spatial analysis which carries out distribution analysis using interpolation. The research was conducted in April 2024. Samples consisted of 50 clean water samples. Results: The number of wells dug in Wonocatur was 50 wells. There were 24 wells positive for Escherichia coli bacteria and 26 negative for Escherichia coli bacteria. Based on the construction of the dug wells, there were 17 wells that did not meet the requirements for being positive for Escherichia coli bacteria, 7 wells that met the requirements for being positive for Escherichia coli and 26 wells that met the requirements for being negative for Escherichia coli. Based on the distance of the wells, there were 7 wells that did not meet the requirements for being positive for Escherichia coli, 17 wells that met the requirements for being positive for Escherichia coli and 26 wells that met the requirements for being negative for Escherichia coli. Conclusion: Based on interpolation analysis, the construction and distance of dug wells influence the content of Escherichia coli bacteria. Key words: Escherichia coli, mapping, dug wells, GIS