GWA Main Site


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June 28th 2019 GWA Ribbon Cutting Agat-Santa Rita Wastewater Treatment Plant.
Questions about your water bill or other water disputes? Call Customer Service at 647-7800 or 647-7803. Report a water leak or outage at 646-4211.

Better Water, Better Lives


This is the official online payment site of the Guam Waterworks Authority. If you're looking for the GWA main site, please go to


Effective March 16, 2020, our main office at Fadian Mangilao as well as our Hagatna Satellite and Upper Tumon GPWA offices will be closed for 14 days as a result of CORONAVIRUS/COVID-19.


GWA is pleased to offer Auto Pay, a free and convenient automatic payment option to its valued customers. With Auto Pay, your payment is automatically withdrawn from your checking account each billing cycle. If you’re interested to sign-up with this service, please click here to download the form. Click here to download Auto Pay Cancellation Form.

At a Glance

You can use PayGWA to pay your GWA bill online using your Visa, MasterCard, or Discover. To do so, you must first register for a PayGWA online account. Before you get started, you should have your most recent GWA bill handy, because you'll be asked to enter information from your bill to register.

Visa accepted. MasterCard accepted.

What You Need to Get Started

You will need to register to use the PayGWA online payment system. To register and make a payment, you will need:

  • Recent GWA bill
  • Valid e-mail account
  • Valid credit card to make payment

Site Requirements

This site is compatible with Internet Explorer 8, Mozilla Firefox, and Google Chrome.


If you are not sure about paying online, read through our Frequently Asked Questions.

If you have a question about your water bill, please call Customer Service at 647-7800 or 647-7803.