Aquifer Beaker

Edwards Aquifer

Aquifer Level 644.9'
10/2/15 - 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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Landscape Watering
Last Digit of Address Watering Day
0 or 1 Monday
2 or 3 Tuesday
4 or 5 Wednesday
6 or 7 Thursday
8 or 9 Friday
No Watering on Weekends

Stage 2:
Water On Your Day

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

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Aquifer Level 644.9 | Stage 2: Water On Your Day


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Learning Lab

Explore the Learning Lab and discover a place where water comes to life through games, activities, lessons and resources!


H2O Hero Fun Pages

The Fun Pages are filled with coloring, activities, games and puzzles to help students learn more about water.

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Read with the Heroes

The H2O Heroes want to help you have fun and maybe even learn something along the way. You can learn more about how important water is to all of us.

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Virtual Classroom

The Virtual Classroom provides interactive lessons and "virtual" field trips to help you discover the many roles of water.

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Lessons & Activities

Experiments, problem solving activities and research topics suitable for home or school projects.

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Know Your H2O

This resource guide has been created to provide you with background information on water and the water issues facing our region.

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