SAWS: Conservation Ordinance
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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Read the Full
Conservation Ordinance

In 2014, an update to the ordinance was approved to help better align conservation goals with population growth and long-term water supply strategies.

Click here to download.

San Antonio's cheapest source of water is conservation – water we don't use. For planning purposes, SAWS now includes water savings from conservation as a significant and separate "supply" to recognize its true contribution and value to our diverse portfolio of water supply projects.

Revisions to the city's drought ordinance will continue to build on our community's conservation success and water-wise ways to reach even greater savings. Residents will have more opportunities to achieve those results without compromising landscapes by participating in effective residential and commercial conservation programs.

Highlights of the 2014 Conservation Ordinance update include:

  • Slight changes to watering hours for Year-Round and Stage 1. Both now allow watering before 11 a.m. or after 7 p.m.
  • Extending Stage 4 drought surcharges to include former Bexar Metropolitan Water District (District Special Project) customers. Current SAWS customers are already subject to the surcharge.

Adopted by the SAWS Board and City Council, the rule changes are effective May 29, 2014.