PERENCANAAN STRATEGIS UNTUK MENEKAN TINGKAT KEHILANGAN AIR PDAM SURABAYA DENGAN SISTEM DINAMIK

Abstract

Water losses distribution is a serious problem in PDAM Surabaya, because in the period 1995-2014 recorded a 30% water that is not distributed to the customer caused by technical leaked, and 45% because of missing consumption (illegal). This causes disanvantage of material for PDAM Surabaya and customers. With modeling and simulation using dynamic system to reduce the level of water losses. Then recommended several policies that can be taken by PDAM Surabaya to reduce the number of water losses, which is the scenario do nothing, at an average prediction rate of water losses by the year 2035 is 68,6%. From the repairing of the pipeline scenario, in obtaining the resulting increase in revenue of 5 billion for each 1% change of the damaged pipe (with a maximum limit of repair is 5% per year with an increase of 3.6% fulfillment ratio). So the rate of decline in the level of losses will depend on how many percent of the pipe that can be rectified by PDAM annually. The last scenario (conversion losses to a new customers) produces an average of 266.255 household customers new customers or industries amounted to 9.830 new customers or 14.841 new customers of government's agency or 135.022 commercial's customer new customers or outside the city new customers 701 or 773 port new customers or 32.280 new social new customers.