KUALA LUMPUR: Pengurusan Air Selangor Sdn Bhd (Air Selangor) has reduced the non-revenue water (NRW) average to a record 28.73% in 2019, a decrease of 1.78% compared to 2018’s 30.51%.
CEO Suhaimi Kamaralzaman said the achievement is significantly better than Air Selangor’s target for 2019 which was 29.5%.
This was achieved through intensive planning and continuous implementation of several “in-house” initiatives since 2017. In the period of three years, NRW rates have been reduced by 3.45% from 32.18% to 28.73%. Based on this record, Air Selangor is positive that the target of a 1% reduction in the NRW rate annually can be achieved in the following years.
“The decline of 1.78% NRW in 2019 is a huge amount which can be compared to 64.65 million liters per day, 11,754 water tankers per day or 26 Olympic sized pools. The decline in NRW directly contributed to the savings on the operating cost of Air Selangor which was RM35.4 million,“ Suhaimi said in a statement.
This achievement was also contributed by the company’s success in reducing pipe burst cases. A total of 2,787 pipe burst cases were recorded in 2019, a decrease of 28% from 3,871 cases in 2018 which of these, 295 were caused by third party.
In 2019, only nine pipe burst cases were recorded per 100 km compared to the international benchmark for Pipe Burst Index of 13 pipe burst cases per 100 km per year.
As for pipe leak cases, an increase was recorded by 108,759 cases in 2019 compared to 104,033 cases in 2018. The increase was a positive result of the leak detection programme carried out internally by the company.
Water loss rates were also reduced through the installation of sensors on the main pipes to enable water pressure monitoring and pressure transient detection. The data obtained by the Inteligent Command Centre through this plan will ensure that pipe repair works are more proactively carried out.
Additionally, the SCADA system and Data Logger are also used to monitor the overflow by controlling water levels in 1,601 reservoirs and 731 pump houses.
In 2019, the replacement of 318,839 old meters and damaged meters to new meters have succeeded in overcoming the commercial loss caused by inaccurate meter readings. Meanwhile, the collaboration of Air Selangor and the National Water Services Commission also contributed to the prevention of water theft activities due to illegal tapping by irresponsible parties.
For 2020, RM171.63 million has been allocated compared to RM164 million in 2019 to carry out programmes for NRW rate reduction and meter replacement works. In addition, RM144.5 million was allocated for old pipes and frequently burst pipes replacement works compared to RM161.9 million in 2019 for 168.34km pipe replacement.
“Air Selangor is confident that ongoing initiatives and programmes to reduce NRW rates will continue to produce good NRW rates by end of this year.”