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The page presents the Trinity Glen Rose District Precinct Map. Trinity Glen Rose District Mapping This new public mapping system is part of the Trinity Glen Rose District's new database capabilities. Just click anywhere on the map below to go to the interactive map. TGR Database Training Videos The Trinity Glen Rose District database system is very detailed and deep with various types of helpful information. To make acquiring that information a little easier, we will be producing some training videos on how the public can use the system. The first video below is an overview of how to log into and navigate the system as well as some insights into where the main menus are, how to locate a particular well in the system and then how you can find detailed information about specific wells.

Here you will find the latest research by the Trinity Glen Rose District in our effort to learn about the Trinity Aquifer. TGR District General Elections Next TGR District Officer General Elections will next be held on May 6, 2028 Election of Officer Information for May 2, 2026 General Elections ORDER OF ELECTION CANCELLATION (February 19, 2026) The May 2, 2026 director elections has been cancelled. NOTICE OF DEADLINE TO FILE APPLICATIONS FOR PLACE ON THE BALLOT ORDER OF ELECTION (English version ) Called January 15, 2026 ORDER OF ELECTION (Spanish version) Posted Order of Election Bexar County - Elections Office Notice Page Location of Election: BEXAR COUNTY EARLY VOTING LOCATIONS & HOURS Bexar County participates in the Countywide Polling Place Program under Section 43.007, as amended, Texas Election Code. Registered voters will be able to cast their Election Day ballots at Vote Center's identified on the County Elections website. Location to File: Location a person may file candidate applications is at 12274 Bandera Rd. #106, Helotes, TX 78023 Candidate Filing Requirements: Fill out all content legibly and completely on the " Application for a Place on the Ballot for a General Election " , click link to document provided. Once complete please file at the Location of Election, there is no filing fee. Filing dates are January 14, 2026 - February 13, 2026. Qualifications for Office: To be qualified to be elected as a director, a person must be a registered voter in the precinct that person represents, be at least 18 years old, a U.S. citizen, a resident of the State of Texas for 12 months, and a resident of the district for 6 months prior to the regular candidate filing deadline (78 days before election day), not totally or partially mentally incapacitated, and not a convicted felon, unless pardoned or otherwise released from the resulting disabilities. Details on Requirements and “Eligibility for Public Office” can be found here in the Election Code, Chapter 141.001 . Current Board of Directors and Terms Important Websites Secretary of State, Elections Division Bexar County Elections Department Comal County Elections Department Kendall County Elections Department 2024 Campaign Finance Reports 2026 Campaign Finance Reports Precinct Boundaries

The Trinity Glen Rose District partners with many great entities to teach water conservation and pollution prevention. TGR EVENTS 2021 Watersaver Landscape Tour Videos The Trinity Glen Rose District cosponsored the 2021 Watersaver Landscape Tour. This event was held online and more than 350 people took time to watch. In case you missed it, you can watch the tour videos featuring some beautiful, water-saving landscapes from around San Antonio. We'd like for you to come away with a few ideas on how you can improve the look and feel of your yard while substituting native plants for grass and other nonnative plants that require lots of water to keep healthy. Many thanks are due to the homeowners who agreed to not only let us show their yards but also participate in the videos. They are quite informative. One last item...you can download the plant lists we put together for each yard, which should help you next time you visit a nursery to pick the right plants for your home's landscape. We hope you enjoy these videos as much as we did in putting them together. Download the plant list here. 2019 Watersaver Landscape Tour - Photos Trinity Joe 3V3A8317 Trinity 1/32 The Trinity Glen Rose District cosponsored the 2019 Watersaver Landscape Tour. This tour offered residents the opportunity to visit various landscapes in various parts of the city to see how they can improve the look of their yards while saving water. Click the arrows to view the photos.

The Trinity Glen Rose District partners with many great entities to teach water conservation and pollution prevention. Pollution Prevention - See Park Slide Shows Below Practicing Pollution Prevention Each Day Over the next few months, the Trinity Glen Rose Groundwater Conservation District is going to be featuring some of the beautiful parks that are located within the District’s boundaries. The bottom line is that parks, water and pollution prevention go hand-in-hand. So, the more you know about how those three work together, the more likely you’ll be to help prevent pollution from getting into our local rivers and aquifers. So that’s why we’re calling this series “Learn and Live.” Each month, we will inform you about one of the must-see parks in Northern Bexar County. And with that learning, we hope you will not only want to visit that park, but you’ll also want live your life by developing the best pollution prevention habits that researchers have developed so far. Learning About Pollution Prevention Historically, cities have paved roadways, sidewalks, trails, parking lots, sports courts, alleys, driveways, and other surfaces to reduce the annoyance and cost of slippery mud and blowing dust. Unfortunately, having so many hard, water-repelling surfaces (along with a vast number of urban rooftops) can be environmentally harmful. After it rains, vast amounts of water, now called “stormwater,” will collect in these areas, pick up the grease, grime and other pollutants that are deposited on them each day, and then head for a water source like a creek, river or aquifer. Here are some of the ways dirty stormwater can pollute a water supply: most stormwater runoff escapes natural cleansing by plants, rocks and soil; without nature slowing down the stream of water after a rain, higher amounts of water are funneled to local streams; urban streams become prone to flash flooding from rapid runoff, resulting in severe scouring, erosion, and reduction of plant life; once stream beds are scoured, flooding becomes more common. The solution is to hold back the water where it hits, slow it down so that the destructiveness of erosion and contaminants is controlled, and that it is naturally cleaned it before it reaches a waterway or aquifer recharge feature. So, now that you’ve learned how unabated stormwater can create flooding and pollution issues for our aquifers and streams, you can also understand why maintaining and increasing large natural areas like parks is so important to our community. The important point to never forget is that the less runoff, and the slower the runoff we have, the less damage there is to rivers and aquifers and the overall environment. Living Pollution Prevention Here are the Top 6 Pollution Prevention Habits You Should Develop Practice water conservation in your home each day. The less water you use, the more water is left in the Trinity Aquifer for future use. Practice energy conservation in your home each day. Large amounts of water are needed to cool power plants that provide electricity to our city. Less energy production requires less water to be used. Use non-toxic cleaning chemicals in your home. Never dump oil or others types of solvents on the ground or in the street where they can run off into a stream or an aquifer. Use only environmentally-safe weed-killers and fertilizers on your landscapes. Always pick up your pet's waste and dispose of properly. Pet waste that runs off into a creek or stream only increases the bacteria levels in that body of water. Enjoy the parks and advocate for more green spaces in your communities. “Learn and Live” at Stone Oak Park 3V3A0300 IMG_6942 3 3V3A0119 3V3A0300 1/28 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 Stone Oak Park located at 20395 Stone Oak Parkway. Stone Oak Park features a 3.2-mile loop trail located in the heart of the Stone Oak neighborhood. Despite its urban setting, park designers succeeded at creating a very rustic feel as the trails wind through some traditional South Texas hill country scenery. Currently, there are some beautiful wild flowers dotting the trails, and with the recent rains, the park is quite green. The park also contains some interesting sculpture art and some work out stations (push ups, site ups, pull ups) for those looking for an additional level of exercise. The trails are rated as moderate, and dogs are also welcome but owners must be keep them on leash. “Learn and Live” at Panther Springs Park Panther Springs Park Panther Springs Park Panther Springs Park Panther Springs Park 1/21 Panther Springs Loop is a 3.6-mile lightly trafficked loop trail located near San Antonio, Texas that features beautiful wild flowers in the spring, hill country type wooded areas and many beautiful open meadow-like vistas. The trails are paved and considered good for all skill levels of hikers, walkers and runners. The park, which opened in March of 2015, consists of 279 acres which were donated by Dan Parman and the San Antonio River Authority (SARA). The dog park which is located near the entrance of the park includes areas for larger dogs and one for smaller ones. Bird watchers have documented 46 different species in the park to include the Greater Roadrunner, two species of hawks and numerous other types of smaller, colorful birds. The San Antonio River Authority collaborated with the City of San Antonio in the development of Panther Springs. SARA’s portion of the project included design and construction work to improve the water and sediment conveyance in the existing natural channel. The agency continues to monitor the stream for changing conditions as the landscape slowly changes over time. 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. “Learn and Live” at Friedrich Wilderness Park Windmill along Water Trail woods 1 bridge 1 Windmill along Water Trail 1/23 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 . Come “Learn and Live” at Eisenhower Park Eisenhower old fence Eisenhower Park Sign Eisenhower Sunset 2 Eisenhower old fence 1/20 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 Eisenhower Park located north of Loop 1604 on NW Military Highway. Dwight D. Eisenhower Park is a 320-acre park managed by the City of San Antonio containing excellent examples of Hill Country landscapes, including wooded dry creek beds and rocky canyons. The park features more than 6 miles of paved and unpaved trails. There are seven different trails in the park most of which are paved. The 2.5 mile Hillview Trail circles the perimeter of the park and leads to the observation tower located about midway through the hike. The one-mile Cedar Flats Trail runs through the heart of the park and contains a combination of paved and rugged terrain. All of the trails have plenty of signage posted and many of the plants and flowers you will see are marked as well. Eisenhower Park is pet friendly, but is a designated natural area park which means roller blades, skateboards and bikes are not allowed on the trails. There are several pavilions in the park for barbecues and picnics that are located near the entrance of the park. Various park amenities are available for rental and you can learn how to make a reservation at this link. The City of San Antonio also offers various types of classes in the parks and you can learn about them at this link. 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. You can learn more about Eisenhower Park here. Government Canyon State Natural Area Government Canyon Cover 3V3A6961 3V3A7100 Government Canyon Cover 1/31 Government Canyon State Natural Area is part of the Texas State Parks system. It is designated a natural area rather than a state park because its primary focus is protection of the property's natural resources. Given that designation, access and recreational activities may be restricted if the Texas Parks & Wildlife Department (TPWD) deems such action necessary to protect the environment there. The reserve is located in northwestern Bexar County inside the Trinity Glen Rose Groundwater Conservation District’s boundaries. It protects a large, relatively pristine tract of Hill Country terrain that is home to numerous and diverse species of plants & wildlife and the upper Culebra Creek and Leon Creek watersheds. The approximately 12,000 acres of land Government Canyon State Natural Area occupies was originally purchased to protect the critical aquifer recharge zone which diverts rainfall into the Edwards Aquifer, the main source of drinking water for San Antonio. First opened to the public in October, 2005, Government Canyon State Natural Area offers more than 41 miles of trails. Visitors can camp, attend a program or guided hike, geocache, picnic, take nature photos and look for birds and other wildlife. For those looking for a place to go birding, Government Canyon is a good place to find the endangered Golden-cheeked warbler. One of the most visited features on the property are the dinosaur tracks which are located about 2.5 miles from the visitor’s center. Scientists believe the tracks were made about 110 million years ago. At that time, this location was actually near the shoreline of the Gulf of Mexico. The dinosaurs would walk along the moist, fine-grained mud and leave tracks which would then be exposed to the sun allowing them to dry and harden. Erosion over time have exposed the tracks for today’s people to discover, study and protect. The Witte Museum, University of Texas at San Antonio, Trinity University and Texas Parks and Wildlife are continuing to study and preserve these unique dinosaur tracks today. You can learn more about Government Canyon here. Crownridge Canyon Park Entrance Crownridge Canyon Map 3V3A6275 Entrance 1/15 Crownridge Canyon was the first City natural area developed as part of the Edwards Aquifer Protection ballot initiative. The 200-acre preserve features Level 1 ADA trails and Level 4 hiking trails through a variety of habitats. Features include a canopy level bridge overlook, beautiful forested canyon bottoms, hillside vistas, and restored grasslands. There are excellent opportunities to view the endangered Golden Cheeked Warbler during its nesting season. This park features interpretive elements highlighting local flora, fauna, geology and the aquifer recharge cycle, as well as the area’s early human inhabitants. The landscape at Crownridge feature native plants of northern Bexar county. Many are numbered and can be identified using the Natural Areas Plant Key. Crownridge Canyon Trails offer both gentle Level 1 trail surfaces and more natural and challenging Level 4 surfaces. Trail markers will soon be placed along the trails to identify native plants. Red Oak Trail: Red Oak is the lower trail loop leading to the bridge crossing Red Oak Canyon. It has a 1.3 mile stabilized base surface meeting ADA accessibility requirements. Level 1 . Bear Grass Trail: Bear Grass Trail is a natural surface, .6 mile loop in the upper part of the park. This trail is Level 4 and offers medium difficulty with few steep slopes and rocky ledges. Level 4. Pets, alcohol, bikes, and loud music are not allowed. Location: 7222 Luskey Blvd. 78256 Hours: Sunday-Saturday: 7:30 a.m. – sunset

Take advantage of the Trinity Glen Rose District's conservation program incentives. RAINWATER HARVESTING Rainwater harvesting is the capture, diversion, and storage of rainwater for a number of different purposes including landscape irrigation, drinking and domestic use, aquifer recharge, and stormwater abatement. In a residential or small-scale application, rainwater harvesting can be as simple as channeling rain running off an unguttered roof to a planted landscape area via contoured landscape. To prevent erosion on sloped surfaces, a bermed concave holding area down slope can store water for direct use by turfgrass or plants. More complex systems include gutters, pipes, storage tanks or cisterns, filtering, pump(s), and water treatment for potable use. Rainwater Harvesting Q&A Just hover your cursor over the photo to see the answer for each question. What are the basic parts of a rainwater harvesting system? Catchment surface: the collection surface from which rainfall runs off, typically a roof on a home or building Gutters and downspouts: channel water from the roof to the tank Leaf screens, first-flush diverters, and roof washers: components which remove debris and dust from the captured rainwater before it goes to the tank One or more storage tanks, also called cisterns Delivery system: gravity-fed or pumped to the end use Treatment/purification: for potable systems, filters and other methods to make the water safe to drink What are the benefits a rainwater harvesting system? The water is free; the only cost is for collection and use. Rainwater provides a water source when groundwater is unavailable, or it can augment limited groundwater supplies. The zero hardness of rainwater helps prevent scale on appliances, extending their use. Rainwater is superior for landscape irrigation. Rainwater harvesting reduces flow to stormwater drains and also reduces non-point source pollution. Rainwater harvesting reduces consumers’ utility bills. How much water can I capture? The basic rule for sizing any harvesting system is that the volume of rainwater is that can be captured (the supply) must equal or exceed the volume of water used (the demand). In theory, approximately 0.62 gallons per square foot of collection surface per inch of rainfall can be collected. In practice, however, some rainwater is lost to first flush, evaporation, splash-out overshoot from the gutters in hard rains and small leaks. How do I get started with a rainwater harvesting system? Rainwater collection systems can be as simple as collecting rain in a barrel or as elaborate as harvesting rainwater into large cisterns to supply your entire household. Rainwater storage systems and equipment can be purchased at local home improvement stores, lawn and garden stores, and even ordered online! A great resource for you to use is the Texas Water Development Board's Rainwater Harvesting guide. Just click the link below to download a PDF of that guide. Plus, you might want to read the Tax Exemption information as well. The Trinity Glen Rose District put together a "how to" video for building your own rain barrels. Check it out below. Texas Water Development Board - Rain Water Harvesting - Download Manual HCA Rainwater Harvesting in Central Texas - A Practical Guide TAX EXEMPTION RESOURCES Application for Property Tax Exemption for Water Conservation Initiatives Sales Tax Exemption Form for Purchasing Rainwater Harvesting Equipment TGR Rain Barrel Construction Video Safety First! Safety is always a must when working with power tools. So, we strongly recommend you wear a pair of safety glasses or some sort of eye protection during this project. Where to find an empty barrel: Dave the Barrel Man (www.davethebarrelman.net ); 811 Roosevelt, San Antonio, Tx 78210; Phone: 210-534-5416 Tanks A Lot - 39332 IH 10 West, Boerne, TX 78006; Phone: 830-331-7330; http://www.tanksalottx.com/ Barrels by Joel - Phone: 210-717-6850 https://barrelsforsale.net/ Home Depot/Lowes - small barrels Many on-line resources - Watch out for shipping costs! Tools needed: drill - 3/8 to 1/2 hp Paddle (spade) bit, 15/16" and 2 3/8" hole saw Set of hole saws or a jigsaw to make a 6" hole in the top Materials needed: A ¾” brass faucet (hose bibb) 2” male PVC connectors & electrical Nut Tube of silicone (bathtub) Barrel Step 1 - Drill a hole in the top of the barrel for rainwater to flow into. Mark a spot in the top of the barrel. It doesn’t have to be the middle. Use a 6” hole saw to cut it out. Or using the bottom of a one-gallon plastic pot, mark a circle around the bottom of the pot. Drill a ¼” hole on one side of the circle and saw the circle out. Saw to the outside line you drew with the plastic pot. Step 2 - Drill the overflow hole. Using the pot as a depth gauge, mark and drill the overflow hole just beneath the depth of the pot. Use the 2 3/8” hole saw. Step 3 - Drill a hole for the hose bibb. About 3 inches up from the bottom of the barrel, drill a 15/16” hole for the 3/4” hose bibb. Step 4 - Install the hose bibb. Put a little silicone around the threads on the hose bibb, push down and screw it in. It will be sealed when you finish. Be sure to point the hose bibb to the side for better access. About 3 inches up from the bottom of the barrel, drill a 15/16” hole for the 3/4” hose bibb. Step 5 - Install the overflow. Insert the 2” adapter with the male threads through the hole. Thread the 2” electrical nut on adapter inside of the barrel. Step 6 - Screening out debris. Place mosquito screen in bottom of pot & add rocks (about 2-3 inches deep) and place it in the top of the barrel. This is the filter to keep out the large stuff off the roof. Step 7 - Connect your rain barrel to the downspout. Place your rain barrel in a location where it will capture rain running off of the roof. Or, you can attach a diversion to your existing downspout that will direct water into the barrel. Other Considerations Level your barrel!! Elevating barrels provides room for watering cans and increases gravity flow If linking barrels together, place an overflow pipe on last barrel Pond Pumps and transfer pumps can be used to increase flow Consider placement of faucet if you live in a windy area If you have children, strongly advised to anchor the barrel to your home Connecting two or more barrels together is easy! 1.If you want to hook two or more barrels together, use the overflow hole as the hookup between the barrels. 2.Use a piece of 2” PVC pipe with a male-threaded connector glued to the end and screw it into the female fitting on the inside of the first barrel. Do the same thing on the other end of the pipe and on the next barrel until all the barrels are hooked up. 3.If you do the same setup on the bottom of all the barrels, the water will empty out of all the barrels at the same time. PLUS, you only need one hose bibb in one barrel.

Here you will find the latest research by the Trinity Glen Rose District in our effort to learn about the Trinity Aquifer. Regional Water Planning Group L Region L Texas | South Central Texas Regional Water Planning Group Texas Water Development Board link for RWPG L - Region L Planning Group

Learn about the latest activities of the Trinity Glen Rose District board of directors. TGR DISTRICT RULES, FORMS, & FEES * Please call the office with any questions on forms and contact us to make an appointment if you need to visit the office for an appropriate staff member to be available to meet with you* District Rules - Current District Rules (adopted October 16, 2025) District Forms Notice of Intent to Drill, Modify, or Plug (also transfer well registration ownership) Existing Well Registration Operating Permit Renewal, Amendment, Or Transfer Affidavit to Produce Groundwater Individual ( non-exempt well owners submit with Notice of Intent for new wells) Affidavit to Produce Groundwater Entity Production Report Form Pump Installation Report Form Meter Registration Form *Note - there is no fee to register an existing well or to t ransfer Ownership . Fees for drilling, plugging, or modifying a well are listed on Notice of Intent Form and the District Fee Schedule. District Fees District Fee Schedule Process and Contact Information The available forms are for well owners or potential well owners and well drillers who need to register an existing well, drill a new well, plug a well, or to make modifications to their existing well or modify a permit, including registering a meter and providing well production. If you have questions, don't hesitate to contact us. Please Note: All Wells issued permits December 1st, 2004 and after MUST have a Geophysical Log run on the well and submitted to the Trinity Glen Rose Groundwater Conservation District along with the State Well Drillers Report and a completed Application to Register a Well. * If you need to visit the office to discuss the rules, forms or fees, please contact the office for an appointment to make sure a staff member will be available to meet with you.* To submit a completed form or materials, please send it to the appropriate address. All applications, forms and payment to Trinity Glen Rose GCD : Trinity Glen Rose GCD c/o Emily Green PO BOX 1589 Helotes, TX 78023 Phone (210) 698-1155 Fax(210)698-1159, or office@tgrgcd.org Need to find out if you need a Well Permit from the San Antonio Water System : San Antonio Water System c/o Elizabeth Gomez, SAWS 2800 US HWY 281 N San Antonio, TX 78212 Phone (210) 233-2349 Need to Find out if you need a Well Permit from the Edwards Aquifer Authority : Edwards Aquifer Authority Well Construction Program 900 E. Quincy San Antonio, TX 78215 Phone (210)222-2204