Aquifer Beaker

Edwards Aquifer

Aquifer Level 635.1'
7/28/14 - 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 2:
Water On Your Day

Watering with an irrigation system or sprinkler is allowed only once a week from 7-11 a.m. and 7-11 p.m. on your designated watering day as determined by your address.

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Aquifer Level 635.1 | Stage 2: Water On Your Day

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Education

Mini Grants

We will begin accepting 2015 Mini-Grant applications on Dec. 1, 2014. A revised application will be available beginning Nov. 14, 2014.

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 per teacher, per calendar year. Any school/organization within the SAWS service area is welcome to apply for a Mini Grant.

Funds are limited, so act now!

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
  • Drinking Water Basics
  • Confluence

Mitchell Lake Audubon Center

  • Wetland Ecology
  • Rocks and Soils
  • Weather and Climate Adaptations

San Antonio Children's Museum

  • World of Bubbles

Natural Bridge Caverns

  • Guided Cavern Tour

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