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Quality water services to guide Macau's prosperity

As an international free port, Macao is one of the most densely populated regions in the world and one of the four largest gambling cities in the world. In 1985, SUEZ NWS signed a 25 year "water concession contract" with the Macau Government, which was the first concession contract of SUEZ in Asia and has been successfully continued for 20 years as of 2010.
The mission

The oriental Las Vegas on scarce water resources

Along with the prosperity of Macau's tourism and gaming industries, the region, with an area of only 32.8 km², receives nearly twice as many visitors a day as its resident population, following which is a rapidly growing demand for water.

On the other hand, Macau is surrounded by sea on three sides, so the freshwater resources are very scarce; in addition, due to the salt tide erosion that often occurs, Macau faces arduous pressure in water-saving.


Visitors to Macao (2017)
Our solutions
SUEZ NWS has been providing water services throughout Macau since 1985. It currently operates three water treatment plants, including Ilha Verde water treatment plant (WTP), Main Storage Reservoir WTP and Coloane WTP, adopting five different water treatment processes from SUEZ: Aquazur V, Pulsator, Mediazur V, AquaDAF, and the most advanced AquaDAF plus Ultra-filtration. Each process can be applied to produce high-quality drinking water that can meet both Macao and European standards.

In order to improve the monitoring level on the networks efficiency, we introduced SUEZ's AQUADVANCED® system in 2014. The system is easy to operate and can help to:

  • Comprehensively monitor water supply flow, pressure, water quality, and energy consumption;
  • Provide advanced event management to identify anormalies and their causes;
  • Accurately anticipate accident risks and simulate the impact of contingency measures;
  • Offer facilitation of data analysis

High-quality customer service is an important part of water management. To this end, we set up the hotline and the customer service center, and also established a customer liaison group, which, with members ranging from the company's management staff to client representatives and 21 business groups, holds regular meetings and solicits opinions widely to facilitate continuous improvement of our services.

In addition, we launched a number of public welfare activities to help citizens build good habits of water use, so that they would contribute to save Macau's precious water resources by every little bit.
The results

Since SUEZ NWS began to provide water services for Macau in 1985, Macau's water industry has made considerable progress:


  • Obtained a number of quality management certifications, including: CNAS-CL01 Accreditation Criteria for the Competence of Testing and Calibration Laboratories (identical to ISO/IEC 17025), ISO 9001 Quality Management System, OHSAS 18001 Occupational Health and Safety Management, ISO 14001 Environmental Management System, ISO 22000 Food Safety Management System and ISO 50001 Energy Management System;
  • The water supply capacity increased from 85,000 m3/day in 1985 to currently 390,000 m3/day, and will reach 520,000 m3/day after completion of Seac Pai Van WTP;
  • The length of water networks increased from 127 km to 670 km in 2016;
  • The served population reaches 248,000 households;
  • Non-revenue water rate is about 9.1%, reaching the leading level in Asia and even around the world.

Non-revenue water rate
water supply capacity


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