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

Recent News View All »

Office Closure

July 05, 2024

Our offices will close at 4:00 pm Friday, July 5, 2024. We will also be closed Monday, July 8th due to anticipated weather conditions. Phones will continue to be monitored by our answering service. In case of an emergency please call 361-592-9323.

Celebrate Independence & Fire Up the Grill

July 02, 2024

This July, celebrate your INDEPENDENCE in the USA & Canada!! It's time to fire up the grill and celebrate National Grilling Month in style! Whether you're a seasoned grill master or just getting started, there's something undeniably satisfying about cooking up delicious meals outdoors and enjoying the smoky flavors of summertime.

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