SAWS: Infrastructure
Aquifer Beaker

Edwards Aquifer

Aquifer Level 657.8'
9/19/17 - 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 657.8 | Stage 1: Water once a week


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San Antonio Water System is committed to making sure our water and wastewater delivery systems meet the highest standards of safety and quality that our community expects and deserves.

Critical construction projects are underway throughout San Antonio as SAWS continues its ongoing preventative maintenance and repair of the city's water and wastewater infrastructure.

Until recently, the rate of infrastructure replacement was only enough to change out each pipe, pump and manhole once every 200 years. Thanks to recent improvements in planning and efficiency, we are now moving toward a more aggressive replacement cycle – one more in line with the 70-80 year potential lifespan of most larger mains.

SAWS Infrastructure Overview

SAWS Infrastructure Overview

Each year, SAWS reinvests millions of dollars toward the replacement, improvement and expansion of the community's water and wastewater infrastructure.

Sewer Construction Projects

Sewer Construction Projects

We're working across San Antonio to improve our wastewater system. Learn more about the construction projects in your area.

Capital Improvement Program

Capital Improvement Program

This financial planning and management tool identifies facility and equipment requirements and schedules them for funding and implementation.



SAWS will invest an additional $492 million in its sewer system over 10-12 years.