The Ingenieur Vol 59 July-Sept 2014 The Ingenieur Vo. 59, July-Sept 2014 | Page 76

INGENIEUR The operations and maintenance of the distribution system and network also have to be more efficient to ensure reduced level of water losses within the system. In 2005, SAJH saw that for the NRW reduction programme to be more focused and effective, some of the activities had to be outsourced. A six-year NRW reduction contract was awarded to Ranhill Water Services Sdn Bhd in April 2005 to continue the NRW reduction effort. Before any NRW reduction activities were carried out in the contract, a NRW baseline level was established which stood at 37.26%. At the end of the contract, the level of NRW was reduced to 29.69% with a savings of 237,069,690 m3 (108Mld) of water throughout the six years. Monetary wise, it came to a saving of RM213,362,721.00 at RM0.90 per m3 production cost. A further contract was awarded upon the expiry of the previous contract and currently, the NRW level in Johor stands at 26.6% with a total savings of 252,988,039 m3 (152 Mld) and an accumulated saved monetary value o