• performance-based contracts
  • non-revenue water

Non Revenue Water Case Study: Increasing Water Supply in Bangkok, Thailand

Organization Private-Public Infrastructure Advisory Board (PPIAF) and World Bank Group
Author PPIAF and World Bank Group
Year 2018
Topics Drinking Water Systems, Urban Water Management, Water Governance, Regulation and Utility Management
Level of action Water & Sanitation services/ Utility level


In the late 1990s, the city of Bangkok was losing about 40percent of water production. To reduce the losses and meet demand from a growing population, the Metropolitan Waterworks Authority (MWA) hired contractors to reduce non-revenue water (NRW) under performance-based contracts (PBCs), increasing the water supply to the city’s six million inhabitants. This case study explores lessons learned and key takeaways from the experience.