Aquifer Beaker

Edwards Aquifer

Aquifer Level 678.1'
9/30/16 - 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 678.1 | Year-Round Watering Hours


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Outdoor Conservation

WaterSaver Rain Sensor Coupon

NOTE: The WaterSaver Rain Sensor Coupon program ended March 1, 2014. Please browse our other current coupon and rebate programs.

All in-ground irrigation systems – both residential and commercial – are required by
city ordinance to have a functioning rain sensor. However, anecdotal evidence suggests that many are nonfunctioning or missing despite the legal requirement.

A functioning rain sensor, which prevents an irrigation system from going off in the rain, can save up to 20 percent of a site's outdoor water use, benefiting both the customer and the community over time.

That's why for a limited time, SAWS is offering a WaterSaver Rain Sensor Coupon good for a free wireless rain sensor and $60 toward the cost of installation through a participating licensed irrigator. This program gives those with older systems (installed prior to Jan. 1, 2012) an opportunity to bring their system into compliance and to verify water savings when a high-quality rain sensor is provided.

WaterSaver Rain Sensor Coupon

Program Duration

The WaterSaver Rain Sensor Coupon program continues through March 1, 2014. All
paper applications must be postmarked by midnight March 1, 2014. SAWS reserves the right to extend or revive the program at a later date based on program evaluation.

Program Eligibility & Highlights

Wireless Rain Sensor

  • Coupon recipients must be a SAWS water customer. Both residential and commercial customers are eligible but only one wireless rain sensor per customer is allowed.
  • To receive a coupon you must download the paper application (PDF) and mail it in.
  • A backflow device must be present, registered with SAWS and have a current inspection on file with SAWS.
  • SAWS will conduct spot inspections to ensure conformity.

For more information on this program, contact SAWS Conservation at 210-704-SAVE (7283).

Frequently Asked Questions

What does the coupon provide?

It provides one free wireless rain sensor and $60 toward the cost of installation.

Who do I call for installation?

After receiving the coupon, contact these participating licensed irrigators.

How long will this program last?

The program ends March 1, 2014.

How many coupons per customer?

Only one coupon per customer is allowed. Sites with multiple irrigation controllers will need a rain sensor for each irrigation controller to be in compliance with state and local laws. However, this program will only provide one wireless rain sensor per customer.

Why offer a free rain sensor if they are required by law?

Field research demonstrates that many older systems have missing or broken rain sensors, but a functioning rain sensor can save a large amount of water, benefiting the customer and the community. This limited-time program gives those with older systems an opportunity to bring their system into compliance and to verify savings when a high-quality rain sensor is provided.

Who's eligible to receive a free rain sensor?

Any SAWS water customer (residential or commercial) with an irrigation system installed before Jan. 1, 2012 and has their backflow prevention device currently registered with SAWS and inspected by a certified inspector.

How much will it cost for installation?

SAWS does not set the price of installation. That is set by the licensed irrigator. Customers are encouraged to check the price of installation with participating irrigators.

What is the value of the rain sensor being provided?

The type of rain sensor being provided can retail for more than $100 when sold in irrigation supply stores or through contractors. SAWS has made a bulk purchase to provide a high-quality product at a great value for ratepayers.

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