DESIGN OF DISTRICT METERED AREA (DMA) OF DRINKING WATER DISTRIBUTION NETWORK OF PUDAK PAYUNG IPA ZONE II, SEMARANG CITY

• Main Author: Betari Andhika, Hafshah
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/78333
• Institution: Institut Teknologi Bandung

The lack of access to piped drinking water in Semarang City has resulted in community dependence on groundwater or springs, which has the potential to accelerate extreme land subsidence. To increase access to piped clean water in Semarang City, which currently still reaches 60% service, the Semarang City Government built Pudak Payung IPA to meet the clean water needs of Pudak Payung Village and Gedawang Village. The potential increase in the amount of water production needs to be balanced with a decrease in the level of water loss, which is currently 47.58%. For this reason, it is necessary to design a water distribution network to fulfil the RPJMN target of 100% by 2038, 14,440 networks and the establishment of an isolated system or DMA (District Metered Area) to reduce the level of water loss in Semarang City to 20%. In achieving these objectives, a quantitative analysis method is used, which is an approach in which the process of data collection, field observation, data analysis, and modelling is carried out with data certainty, calculation, and numerical. The design of the planned distribution line must meet several technical and nontechnical criteria such as residual pressure, speed, and water quality, so that the results of the distribution network are able to meet the maximum demand of the service area in 2038 of 219,47L/s which is divided into 6 DMAs. From the results of alternative selection using the SAW (Simple Additive Weighting) method, through various parameters both technical and non-technical, alternative route 3 was chosen as the best distribution route. In addition, based on financial aspects using the Net Present Value (NPV) and Benefit Cost Ratio (BCR) methods, the design of the distribution network and the formation of the Pudak Payung IPA DMA are economically feasible.