Track Record


Perak with its established DMZ and ongoing ALC works have invested interest in the benefits of proper pressure management. PWS is awarded Perak Phase 2 to perform a detailed study and also implement APMC™ on 4 sites. For this project, PWS is closely partnered with a local NRW contractor, Millenia Aqua, to achieve the best results on the DMZ.


Active Leakage Works (ALC) have been intensely carried out for the state of Melaka for the past years resulting in a reduction of physical losses and subsequently NRW levels. PWS is engaged as a pressure management contractor to enforce APMC™ to make further savings and to sustain the pressure in the network as part of a long term NRW solution.

A total of 10 sites were awarded as part of Melaka Phase 1 consisting of Melaka Tengah and Alor Gajah. Due to constant ALC works being carried out, it is unfair to assume all the saving is through APMC™ only; hence, a comparison of total volume into the DMZ against billed consumption in the DMZ is carried out. From the comparisons, a total of 106,000m3 were saved for the period of 3 months from August to October 2012.


Syarikat Air Johor (SAJH) is one of the most successful water operator in Malaysia. Taking into account its vast water network and more than a thousand District Meter Zone (DMZ), SAJH has progressively made improvements from water supply coverage to non-revenue water.

After numerous NRW initiatives carried out, SAJH has awarded PWS as a key contractor to supply, install, commission and maintain the established DMZ via Advance Pressure Management and Control (APMC™). Johor Phase 1 was awarded to PWS in April 2012 consisting of 12 sites. Showing good results in reduction in burst frequencies and leakage, SAJH then awarded Johor Phase 2 to PWS consisting of 75 sites. Subsequently, another 150 sites was awarded to PWS as Johor Phase 3; whereby, coverage of APMC™ is selective to all districts in Johor (i.e. Muar, Batu Pahat, Kluang, Mersing, Kota Tinggi, Johor Bahru, Kulai, Pontian, Pasir Gudang, and Segamat)