- The Provincial Waterworks Authority (PWA) is a Thai state enterprise providing clean and safe water to 74 provinces across Thailand, excluding Bangkok, Samut Prakan, and Nonthaburi.
- PWA ensures WHO-standard water supply through modern infrastructure, digital services like the PWA Plus Life+ app, and nationwide customer support.
PWA: Reliable water services across the nation
The Provincial Waterworks Authority (PWA) was established under the 1979 Provincial Waterworks Authority Act to provide clean, safe, and reliable water services to people across Thailand. Operating under the Ministry of Interior, PWA is responsible for water distribution in 74 provinces, excluding Bangkok, Samut Prakan, and Nonthaburi. The organisation ensures water quality in line with World Health Organization (WHO) standards, serving residential, commercial, and industrial sectors.
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PWA: Operations and infrastructure
PWA’s core responsibilities include sourcing raw water, treating it to meet potable standards, and distributing it through an expansive pipeline network. The authority continuously develops and upgrades infrastructure to meet rising water demand and improve efficiency. This includes the construction and maintenance of treatment plants, pipelines, and service facilities to ensure reliable supply and service coverage.
PWA: Customer-focused services
To enhance customer experience, PWA provides a variety of digital tools and services. Through the PWA Plus Life+ mobile application, users can pay bills, receive service updates, and submit service requests directly from their devices. The app reflects the authority’s commitment to improving service accessibility and user convenience.
PWA: Support and accessibility
Headquartered in Laksi, Bangkok, PWA operates a nationwide call centre reachable via 1662, and supports email communication for enquiries and feedback. These customer support channels ensure users have easy access to help and service information when needed.
