SAWS: Clean Water 101
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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Water Quality

Clean Water 101

Good Clean Start

It's easy to take water for granted. And it's easy to forget how quickly careless actions can mess it up. The Edwards Aquifer is our primary source for water. What you put down storm drains or down the drain could eventually re-enter the water cycle. That's not a pretty thought.

Ask yourself, are you part of the solution or part of the problem? To find out, check the chart below. It's an average of the top seven water quality concerns we all have to face.

The Offenders # of People Nationwide The Percentage
Bug spray fanatics 43 million 40%
Over fertilizers 38 million 35%
Chronic car washers 27 million 25%
Over-waterers 16 million 15%
Leaky, septic tank slackers 16 million 15%
Folks who don't pick up after their pets 16 million 15%
Sloppy mechanics 3 million 1-5%
Source: Provisional estimates of potential residential polluters in the U.S. from The Terrene Institute.

That's why it's important to take these water quality tips to heart and use them. We'll do our part, too. As always, SAWS is committed to preserving and conserving our most precious resource. We'll continue to provide you with the highest quality water and do our best to watch over and protect the Edwards Aquifer from pollution. After all, good clean water is a vital part of our future. Let's keep it that way.

Water Quality Then & Now >>