SAWS Developer Resources
Aquifer Beaker

Edwards Aquifer

Aquifer Level 683.6'
5/21/19 - 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.

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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.

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Aquifer Level 683.6 | Year-Round Watering Hours

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Developer Resources

Chemical Safety

Working on a project at one of production, treatment or other SAWS facilities? Please be sure you review our chemical safety guidelines and submit your acknowledgement form to SAWS before you start your project.

Use the links below to download chemical safety-related documents (Adobe PDF):

Production and Treatment Chemical Safety Training for Contractors



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