Welcome to the Official Website of South Texas Water Authority

Our Mission

At STWA we are committed to working with governmental entities, Water Supply Corporations, industry and commerce to maintain a water supply for current and future needs.

NWSC and RWSC Customers

Please check the NWSC and RWSC websites for payment options, updates and other important information.

Conservation Tips

There are a number of easy ways to save water, and they all start with you. When you save water, you save money on your utility bills. Here are just a few ways...Conservation Tips

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December 09, 2022

Our new website launched on March 14, 2022 and we continue adding information every day. Subscribe and receive news and alerts via email and text. Let us know what you think!

Grab Your Water Bottle! It's National Hydration Month

June 01, 2023

Did you know that June is National Hydration Month? Well, we know its hot outside, but proper hydration is critical no matter the weather!

We understand that keeping the fluids flowing isn’t always top of mind. Proper hydration is vital to healthy living, and improper hydration can and will lead to major health risks. The biggest risk of improper hydration is declining cognitive function.

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