Water Loss in this context of MWA has been defined as the different amount between water produced and water sale (Billing water and public usage)

Water Loss Reduction Plan

       Due to high unaccounted for Water(UFW) is the most serious problems of MWA service operation. This resulted from aging water mains, around 30% of total pipe networks has been used for more than 25 years. Besides , Information Technology for control and monitoring the distribution system is rather obsolete hence. MWA has focused on water loss from pipe leakage which is the major loss of UFW.
     
       Followings are measures for water loss reduction
            1.   Fundamental Measures
            2.   Symptomatic Measures
            3.   Preventive Measures

       Fundamental Measures consists of :
            -    Improve mapping system and customers information provide Management Information System related to water transmission and distribution including frequently check up measuring instrumentation. So for MWA has utilized GIS, CIS, SCADA and DWA.
            -    Symptomatic Measures comprises :
                 Leak survey and detective by using efficient measuring instruments and skilled operators, pipe leakage repairation and aged pipes replacement.
            -    Preventive Measures composes of :
                 Aged pipes replacement, exploiting GIS for mapping system improvement of pipe networks, apply network system simulation for optimizing water distribution according to the demand. District Metering Area (DMA) Installation well equiped with Pressure Reducing Value (PRV) for pipeburst protection

MWA's Water Loss Reduction Project 

       Water Loss Reduction Project has been implemented since 2002 on the purposes of distribution system improvement and leakage control. Implementation plan (2002-2006) coveres the following topics:

       1.   Distribution System efficiency Improvement
             -   Pump Stations' capacity build up through replacing or installation of new pumps for inefficient equipments.
             -   Increase system reliability through adding water take off stations directly from tunneling / conduits to trunk mains apart from the normal distribution from Pump Stations.
             -   Improve water network system by means of trunk mains replacement to enable accommodating adequated flow and water pressure of minimum 6 meters over areas coverage.
             -   Pressure Reducing Value installation to decrease high water pressure at the closing areas to pump stations. This will prevent pipeburst due to unbarable pipe conditions.

       2.   Automated Control Standards Improvement with IT
             -   SCADA system application to help optimization of efficient water distribution in accordance with certair required demand at times, presently, 20% of work plan has been done.
             -   District Metering Area (DMA) installation to assist efficient monitoring and control system of water loss reduction.

             MWA targets to reduce unaccounted for water down to 30% by the year 2006 covering all over the services area. The use of DMA is to gather and prioritize high water loss areas in supposting preparation of suitable activities plan for leakage control and prevention.