Aquifer Beaker

Edwards Aquifer

Aquifer Level 663.6'
7/27/16 - 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 663.6 | Year-Round Watering Hours


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Conservation Outreach Calendar

Explore our online calendar and find out more about SAWS Conservation events scheduled in the San Antonio area. Events include workshops, seminars, lectures and other functions promoting conservation.

A/C Condensate Capture Workshop

July 30, 2016 (Sat) 9:00 AM - 12:00 PM
William Sinkin EcoCentro at SAC - 1802 N. Main
Ever wondered what to do with the drip drip drip from your outside A/C condensate line? We can help. If your condensate line EXITS YOUR ATTIC (up high) or you have window or mini split units, you can collect lots of water and use it to irrigate your plants automatically and maintenance free!! $45 includes workshop plus barrel. Limited to first 20 paid registrants. Pre-payment required for registration. To pay, please visit or bring your payment by Eco Centro M-F 8am-5pm. Checks payable to Alamo Colleges Eco Centro. Deadline for registration, July 26.

Bats 101

August 6, 2016 (Sat) 10:00 AM - 11:00 PM
San Antonio Botanical Garden - 555 Funston
Description: Join Master Naturalist and San Antonio Botanical Garden staff, Tim Roan, to uncover the intricacies of bats. This class will explore the natural history and ecology involving these winged wonders. Fee: $15 ($13.50 members) Instructor: Tim Roan

Texas Tough Roundtable Discussion: Pruning, Pests and Proper Care

August 13, 2016 (Sat) 9:30 AM - 11:00 AM
San Antonio Botanical Garden - 555 Funston
Meet with gardening experts to discuss seasonal checklists, proper pruning, watering, pesticides, soil treatment, and overall care of your Texas Tough Landscape. Fee: $15 ($13.50 members)

Beyond Feeders: How to Attract Hummingbirds!

August 20, 2016 (Sat) 9:30 AM - 12:30 PM
San Antonio Botanical Garden - 555 Funston
Description: Beyond filling multiple feeders with nectar, learn the simple guidelines to creating a beautiful, low-maintenance garden for hummingbirds using the nectar and beauty of native plants. This class will provide a step-by-step instruction of the components needed for a successful hummingbird garden. Fee: $30 ($27 members) Instructor: Rachel Cywinski

Wildscaping: Landscaping for Wildlife and Conserving Water

August 27, 2016 (Sat) 9:30 AM - 11:30 AM
San Antonio Botanical Garden - 555 Funston
As of 2016, San Antonio is the first Monarch Champion City in the nation! Join us today to help fulfill this pledge by turning your garden into a space that encourages a variety of wildlife to visit—especially birds, butterflies and pollinators! Fall gardening is a great time to get started! By adding drought hardy native plants that provide food and refuge to your flying visitors, you will also help our declining Monarch populations during their migration through the area. You will be enjoying singing birds and fluttering butterflies in no time while using less water and no chemicals! Fee: $20 ($18 members) Instructor: Judit Green