SAWS: Conservation
Aquifer Beaker

Edwards Aquifer

Aquifer Level 658.5'
9/25/17 - 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 658.5 | Stage 1: Water once a week


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San Antonio's cheapest source of water is conservation — water we don't use. That's why our proven conservation programs have become a cornerstone of the community's long-term water management strategy. With your help, we can keep SAWS rates among the lowest in the nation while saving tomorrow's water today.

Drought Restrictions

Drought Restrictions

Drought rules and stages help all of us effectively manage water use based on specific levels of the Edwards Aquifer.

Outdoor Conservation & Rebates

Residential Outdoor Programs & Rebates

SAWS developed these water-wise programs and rebates to encourage conservation, saving you a lot of green.

Indoor Conservation & Rebates

Residential Indoor Programs & Rebates

These water-efficient programs and rebates encourage indoor conservation, thereby reducing your water bill.

Commercial Programs & Rebates

Commercial Programs & Rebates

Local commercial businesses play an integral part of overall conservation, so SAWS developed these water-efficient programs and rebates to encourage conservation among them.

Your Role in Conservation

Your Role in Conservation

Conservation starts with you. There are many steps you can take to conserve our most precious resource – water. Adopt these easy, water-friendly habits and become a WaterSaver.



These provisions help San Antonians save up to 1.3 billion gallons per year while preserving the Edwards Aquifer.

Conservation Case Studies

Case Studies

Need some motivation? Our case studies demonstrate the success of our residential and commercial conservation programs and rebates. Check out the numbers for yourself!



Expand your conservation/environmental knowledge at workshops, seminars and lectures held throughout the San Antonio area.