ANALYSIS OF WATER DISTRIBUTION SERVICES BY PERUMDAM TIRTA KHATULISTIWA IN PONTIANAK BARAT SUB-DISTRICT USING EPANET

PERUMDA Air Minum Tirta Khatulistiwa distributes clean water in Pontianak Barat District. Services are divided into several zones, one of which is zone H includes Pal Lima Village and Sungai Beliung Village. only 63.82% the population served with a pumping capacity 100 liters/second, based on this data, service not optimal. Population growth results lack at peak hours, so it necessary to analyze needs for existing conditions next 20 years. projection using Arithmetic, Geometric Least Square methods. Analysis demand calculated domestic non-domestic water, distribution network analysis carried out Epanet program. Network simulated 5 conditions. The study found that was 110.20 liters/second condition 90% 145.78 while need years 341.43. liters/second. Short-term improvements can be made increase exsisting 200 long-term 400 pump head 40 m, adding booster liters. /second 30 m