SAWS: Education
Aquifer Beaker

Edwards Aquifer

Aquifer Level 657.0'
9/21/17 - 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 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 657.0 | Stage 1: Water once a week


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Water is vital to our environment, society, economy and ultimately our future. That's why SAWS Education stresses topics such as surface water, ground water, wastewater treatment and drinking water for students and residents – no matter their age. Students who participate in SAWS Education programs can formulate their own understanding of the importance of water in our community through our curriculum, activities and service-learning projects – all of which are free of charge to educators and students.

Not to worry, we didn't forget about the adults. There's a program tailored for them called The Rain to Drain Experience, an engaging community field trip that traces the water cycle from falling raindrops to, well, "after the flush."



Saving water. It's not just for grown ups. Kids need to be water savers, too. It's a lot of fun, and you just need to be between the ages of four and 12.

Middle School

Middle School

Learn more about our middle school program and the popular Student Water Investigator (SWI) component.

High School

High School

Confluence is an innovative high school program that promotes science, water education and civic responsibility through service learning.

Rain to Drain Experience

Rain to Drain Experience

Follow the water cycle from rain droplets to, well, "after the flush" during this day-long field trip for adults.