SAWS: Backflow Prevention Forms
Aquifer Beaker

Edwards Aquifer

Aquifer Level 658.2'
5/22/18 - Official

The Edwards aquifer and its catchment area in the San Antonio region is about 8,000 square miles and includes all or part of 13 counties in south-central Texas.

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Stage 1:
Water once a week

Watering with an irrigation system or sprinkler is allowed only once a week before 11 a.m. or after 7 p.m. on your designated watering day as determined by your address.

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Aquifer Level 658.2 | Stage 1: Water once a week


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Backflow Prevention Guidelines and Forms

The document files provided below are in Adobe PDF Format unless otherwise noted, and require the Adobe Acrobat Reader to be viewed. Use the link at the bottom of this page to get the Acrobat reader.

Cross-Connection Control and Backflow Prevention Program

Guidelines and Information

For questions or concerns regarding Backflow Prevention please contact James Cantrell at
210-233-2277, email at, or contact the:

SAWS Backflow Prevention Section
2800 U.S.Hwy 281 North
Customer Service Center, Tower II
San Antonio, Texas 78212
Office 210-233-2421   |   Fax 210-233-4749

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