TGR NEWS - August 2020

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TGR Declares Stage 1 of Drought Contingency Plan

Following the declaration of Stage 1 water restrictions by San Antonio Water System and Edwards Aquifer Authority, the Trinity Glen Rose Groundwater Conservation District (TGR) declared STAGE 1 water restrictions in compliance with the District’s Drought Contingency Plan effective as of Tuesday, July 21, 2020.


According to the current US Drought Monitor, Northern Bexar County is categorized as experiencing “Abnormally Dry” and “Moderate Drought” conditions.  The Drought Monitor is one measure used to determine the need to move from one drought stage to another. Additionally, the District may choose to initiate drought stages corresponding with the major public water systems serving residents within the District boundaries declaration of drought stages, as well as, water level data gathered from monitor wells chosen by TGR that represent groundwater level fluctuations and declines.


In reviewing data obtained from the District monitor well network, declines continue throughout the District over the last 30 day period. 


Stage 1 conservation measures include: 

•    Non-exempt users shall reduce water usage by 5% over prior year. 

•    Non-public swimming pools covered a minimum of 25% by evaporation screens. 

•    Water wasting, including washing impervious cover (ex. driveways), prohibited. 

•    Hand watering with hose or bucket on non-designated watering days.

•    Reduce landscape watering to once per week on designated watering day:   

“Learn and Live” at Friedrich Wilderness Park

Third in a series of six articles.

Numerous natural areas and community parks beautify Northern Bexar County where the Trinity Glen Rose Groundwater Conservation District (TGR) works to preserve and protect the Trinity Aquifer each day. In addition to these parks’ aesthetic value, they also play a major part in preventing pollution from entering the Trinity Aquifer and Edwards Aquifer which are both critical to the water supply in Bexar County. To highlight pollution prevention message, TGR is bringing its constituents an informative series about the six major parks and natural areas in the district. This month, we are highlighting Friedrich Park located north of Loop 1604 on Milsa Drive.

Friedrich Wilderness Park offers approximately 10 miles of hiking trails with varying degrees of difficulty. It is home for rare birds, terrestrial orchids, steep hills and deep canyons. It is internationally known for bird watching. Perched on the edge of the Balcones Escarpment, Friedrich is a nesting site for the endangered Black-capped Vireo and the Golden-cheeked Warbler. 

In 1971, Norma Friedrich Ward bequeathed 180 acres of land on Heuermann Road near Leon Springs to the City of San Antonio for use as a public park. She also gave $100,000 to make improvements to the land. It was Mrs. Ward’s wish that the natural vegetation and native trees and shrubs be protected and that native birds and wildlife be protected and encouraged to use the park as a sanctuary.

The following year, Wilbur Matthews and Glen Martin donated another 52 acres to enlarge the park according to the same guidelines specified by Mrs. Ward.

The park was developed with a grant from the Texas Parks and Wildlife Department and was dedicated on August 31, 1978.

Preserving the community’s natural areas goes a long way toward helping efforts to maintain excellent water quality in local aquifers and other waterways. That is why the Trinity Glen Rose District is urging you to learn about the parks and to live a little by visiting each one to experience the environmental beauty and ecological benefits they provide.

For reservations and more information about the Friedrich Wilderness Park, you can visit the park’s website here.

Time to Have your Sprinkler System Checked

July through September is typically the hottest and driest stretch of weather we see in South Texas each year. Any by now you know that means that your water conservation knowledge and skills should be on high alert. Because landscape watering can account for up to 60 percent of the city’s water use during this time of year, the Trinity Glen Rose District always like to remind homeowners and business owners to have their sprinkler systems inspected before the systems are turned on for regular use. Wasted water cannot be retrieved, so you only get one chance to efficiently use the water provided by the city’s water resources such as the Trinity and Edwards Aquifers.

The quickest do-it-yourself way to check your system is to start it up and then inspect each of the sprinkler heads in all of the system’s zones. Look for broken heads or heads that have sunken below ground. Then make sure that the heads are not watering the streets and sidewalks. Then you can observe whether there is adequate water pressure feeding each sprinkler head. A broken pipe or sprinkler head can drain away pressure and waste significant amounts of water.

Also, if you have been slowly and steadily replacing high water use plants with native low water use plants, you might make sure that your sprinkler system either does not water areas with native plants or waters only a little.

Here is some great news for you. The Trinity Glen Rose District and San Antonio Water System have teamed up over the last few years to offer free irrigation system consultation programs. In fact, TGR will give you a $50 coupon to have the consultation done. Just go to for more information.

TGR Addressing COVID-19 Virus Health Safety Concerns

The Trinity Glen Rose Groundwater Conservation District (TGR) staff relocated to a new office in Helotes in just before the COVID-19 virus pandemic declarations made by the State of Texas and City of San Antonio in March. 

As of June 30, District staff are working remotely; however, beginning the week of July 6, we will be alternating days throughout the week to minimize risk to constituents, staff and the general public by reducing group interactions. In the event an in-person appointment is needed, we will make every effort to accommodate. We will conduct a temperature screening prior to entering the office and require that all individuals present where a mask and maintain 6' social distancing at all times. We will continue to monitor public health reports and recommendations and will continue to make future decisions based on the guidance provided by public health officials.

If you need assistance, you may call the office at 210-698-1155 and leave a message or you may call 210-219–5555 to contact someone directly.

New TGR District office location address:
Physical: 14789 Old Bandera Road, Suite 105, Helotes, Texas 78023
Mailing: 12790 FM 1560 N Box 1589, Helotes, Texas 78023

TGR Publishes 2019 Annual Report 

The Trinity Glen Rose Groundwater Conservation District (TGR) just published its 2019 Annual Report. The TGR board reviewed the report in early March and approved the document for publication at its March meeting.

The 2019 Annual Report provides good background on the:

  •  purpose of the district

  •  district goals

  •  current leadership

  •  well monitoring work

  •  financial position, and

  •  community outreach programs

This year, the District included two charts which outline TGR’s involvement in regional GMA-9 joint water planning efforts required by the State of Texas. The charts provide a 10-year history of water use in the region and how that compares to the region’s goals for water production from the Trinity Aquifer. Those goals are known as “desired future conditions.”

You can download the 2019 TGR Annual Report here.

Physical: 14789 Old Bandera, Ste. 105
Helotes, Texas 78023

Mailing: 12790 FM 1560 N. Box 1589
Helotes, Texas 78023

Phone (210) 698-1155 

Fax (210) 698-1159

©2019 by the Trinity Glen Rose Groundwater Conservation District.

Disclaimer: The information on this website is compiled and made available as a public service by the Trinity Glen Rose Groundwater Conservation District (TGR). However, TGR makes no warranty as to the accuracy, reliability, or completeness of the information and is not responsible for any errors or omissions or for results obtained from the use of the information. Distribution of the information does not constitute such a warranty. Use of the information is the sole responsibility of the user. Links provided on this website are being provided as a convenience and for informational purposes only; they do not constitute an endorsement or an approval by TGR of any of the products, services or opinions of the corporation or organization or individual. TGR bears no responsibility for the accuracy, legality, or content of the external site or for that of subsequent links contained in the external site. Contact the external site for any answers to questions regarding the links content. Geological and hydrogeological data and graphics included in this website are provided in draft form only, except for those documents which have the seal of a Registered Professional Geoscientist or Registered Professional Engineer affixed.