Evaluasi Sistem Jaringan Distribusi Air Perundang-undangan Giri Tirta Kabupaten Gresik Menggunakan Epanet 2.2 Di Perumahan Greenland Menganti

Abstract

Perumda Giri Tirta Gresik Regency as the provider of clean water in Gresik Regency will develop a distribution pipe network in the Greenland Menganti Housing Complex in the next few years. Before development is carried out on the network, it is necessary to evaluate the existing condition of the distribution network system in the housing complex to analyze the problems that occur in the clean water distribution system. In evaluating the clean water distribution network system, researchers used EPANET 2.2 software. This research is a type of descriptive qualitative research. Observations were carried out by observing the condition of the existing water distribution pipe network, water pressure, water discharge and water flow speed in the Greenland Menganti Housing Complex. The results of running EPANET 2.2 software show that the lowest pressure value in the distribution network system is 12.04 mka and the highest pressure value is 19.59 mka. These results are still in accordance with Minister of Public Works Regulation Number 18/PRT/M/2007 for the minimum pressure criteria in distribution pipes is 5-10 mka at the furthest service reach point. The running results of the water flow velocity value in the pipe or velocity show the lowest value of 0.03 m/s, while the highest velocity value is 2.5 m/s. According to Minister of Public Works Regulation Number 18/PRT/M/2007, the permitted velocity value is 0.3 – 2.5 m/s, so these results are not in accordance with the planning criteria. An alternative to overcome this is to change the dimensions of the network pipes in several areas that are deemed less than optimal. In the process of evaluating this distribution network system only includes alternative solutions in general in accordance with existing literature without including comparison network images that have been processed in such a way as to obtain optimal data.