SAWS: Backflow Prevention Forms
Aquifer Beaker

Edwards Aquifer

Aquifer Level 682.6'
5/23/19 - 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.

Learn More »


Year-Round Watering Hours

Watering with an irrigation system or sprinkler is allowed any day of the week before 11 a.m. or after 7 p.m.

Learn More »


Aquifer Level 682.6 | Year-Round Watering Hours

Log In

Pay Your Bill Online

Already registered? Log in now.

Forgot your password?

New User

My Account Page

No user account? No problem.

Sign Up Now


Backflow Prevention Guidelines and Forms

Submit Test & Maintenance Reports Online

Complete registration form and return with original signature along with copies of the following:

  • Driver's License
  • Current BPAT License
  • Current Gauge Certification
  • Company Info: Name, Address & Phone Numbers

Return by mail:
San Antonio Water System
c/o Backflow Prevention Section
PO BOX 2499
San Antonio, Texas 78298-2449

San Antonio Water System
Backflow Prevention Section, 4th Floor
2800 U.S. Hwy. 281 North

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

List of Testers and Inspectors
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

Need the free Adobe® Reader® for PDF files? Click here.