Aquifer Beaker

Edwards Aquifer

Aquifer Level 673.8'
8/23/16 - 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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Year-Round Watering Hours

Watering with an irrigation system or sprinkler is allowed any day of the week before 11 a.m. or after 7 p.m.

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Aquifer Level 673.8 | Year-Round Watering Hours


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Mini Grants

All mini grant funds for 2016 have been awarded. We will begin accepting applications for the Spring of 2017 on Dec. 1, 2016. An updated application will be available on line by Nov. 15, 2016.

Schools Within the SAWS Service Area are Eligible to Apply

San Antonio Water System is pleased to offer a Mini-Grant Program to subsidize field trip programs that educate pre-kindergarten through 12th-grade students on topics of water quality, water conservation, environmental awareness and pollution prevention. Please check the list of approved field trip destinations below for eligible programs.

Mini-Grant funds can be used for transportation reimbursement, admission costs, workshop costs and substitute teacher costs up to $1,000, one per teacher, one per calendar year. Any school/organization within the SAWS service area is welcome to apply for a Mini Grant.

Approved field-trip destinations/ programs include:

The Witte Museum

  • Water Where You Want It
  • River to Sink: What's in My Drink
  • Our Dynamic River

San Antonio Botanical Garden

  • Terrarium Ecosystem Program

Medina River Natural Area

  • Natural Area Guided Tour

San Antonio Missions

  • Park Ranger Guided Tour

San Antonio Water System

  • Down the Drain: Exploring Water After the Flush
  • Confluence

Mitchell Lake Audubon Center

  • Wet & Wild
  • Earth & Sky

The Doseum

Natural Bridge Caverns

  • Guided Cavern Tour

Government Canyon

  • Guided Tour

For additional information or questions, call 210-233-3626.