Evaluation of pipe network distribution system using EPANET 2.0 (a case study of the city of Jember)

Fulfilment of drinking water needs is one of the government programs to support the achievement of the target of Sustainable Development Goals (SDGs). One of the important parameters in the fulfilment of drinking water needs is a good distribution system. The aims of this research are to create a design to analyse the hydraulic model of drinking water distribution. The utilized model involved the EPANET 2.0 software. The utilized data included land elevation, pipe distribution base map, population, and discharge. The results indicated that the existing design has not fulfilled the standards of availability, hydraulics analysis, and calibration. Therefore, there needs to be a redesign that fulfils all parameters. The results of the new design requires a two-stage development process for the new water distribution system, with the first stage to be executed in 2015-2020 and the second stage to be executed in 2020-2025. Hydraulic analysis shows that additional discharge is needed to increase pressure and velocity. Model calibration was performed by comparing simulated data with field data; the result of pressure calibration is 0.928 and the result of discharge calibration is 0.894. These two results indicated that the results of the simulation are highly correlated with the field conditions.