Looking for water data? You've come to the right place. You can find water well locations and data at this page. WATER WELL INFORMATION Water Quality Testing of Your Well Safe drinking water for you family and friends relies on frequent testing Because no federal, state, or local entity ensures the safety of private well water, the responsibility for monitoring it falls to the well owner. The District recommends annual sampling of the well with a local lab to monitor the quality of your water. Baseline water quality results are important to have on record in the event a water quality event occurs. Water Quality Testing Basics You will need to find out the quality of the water in your aquifer. Some information about the aquifer water may be readily available from public utilities and water companies. They are required by federal and state law to report water chemistry to consumers. (TGR link for Trinity Aquifer water quality.) Contact the water utility for a copy of the water quality report for information about local water quality issues. However, water quality information on exempt household wells is not recorded or made available through any public agency unless the well owner has given permission. Have your water tested whenever: You suspect it may be contaminated. If you notice a change in color, taste, or odor of the water. The pump or well has undergone maintenance recently. People who drink the water have experienced a change in health, especially stomach-related illnesses. The well water is cloudy or smelly, or tastes bad, it probably does not conform to drinking water quality standards. If you live near oil and gas fields, you should have the water screened for non-refined hydrocarbons in addition to annual testing for coliform bacteria, nitrate, and total dissolved solids. Maintain Water Quality Testing Records To protect your water supply, you need to keep records on each well, manage potential sources of contamination, and test your water at least once a year. Record the location of all wells on your property, and keep a file on each well. Each well will have a unique identification number assigned by the driller. Use this number to track historical information, which may be available from the following sources: Texas Water Development Board Groundwater Database: Licensed water well drillers must submit reports to the state for each well they drill. More than 130,000 wells have been recorded in the TWDB groundwater database since 2001. For more recently drilled wells, your state well report may be found here: TWDB Water Data Interactive Map Texas Commission on Environmental Quality Water Well Report Viewer : For historic well records, TCEQ Water Well Viewer For assistance, call 512-239-4600 or email gpat@tceq.texas.gov Texas Alliance for Groundwater Districts: http://www.texasgroundwater.org/ Your groundwater may be managed and protected locally through a groundwater conservation district. Groundwater districts are governed under chapters 35 and 36 of the Texas Water Code. Texas Water Development Board: TWDB Groundwater Conservation Districts webpage How to Contact a Certified Water Testing Lab Following well disinfection, water should be sampled and tested. Contact a certified water testing lab for instructions and a test kit. To find a lab, visit the link below for an easy to use map of TCEQ certified labs: Texas Drinking Water Public Labs Further Reading Texas A& M Agrilife Extension: "Drinking Water Standards " Texas Cooperative Extension: "Drinking Water Problems: Iron and Manganese " Texas A&M Agrilife Extension: "What to do About Coliform Bacteria in Well Water " National Ground Water Association: "PFAs and Private Well Owners"

This the TGR District Precincts Page with a map of the five precincts where representatives are elected. Helpful Website Links US Drought Monitor - Interactive map of the current U.S. drought status. U.S. Geological Survey State Texas Water Development Board (TWDB) TWDB Groundwater Resources Texas Alliance of Groundwater Districts (TAGD) Texas Department of Licensing and Regulation Texas Well Owners Network - Fact Sheets for Well Owners Texas Commission on Environmental Quality Texas Commission on Environmental Quality Approved Water Haulers Updated July 2026 South Central Texas Regional Water Planning Group Cibolo Center for Conservation Edwards Aquifer Authority Hill Country Alliance Greater Edwards Aquifer Alliance Local San Antonio Water System (SAWS) SAWS Garden Style San Antonio River Authority San Antonio Parks and Recreation - Parks Gardening Volunteers of South Texas Texas Agrilife Extension Landscaping

Looking for water data? You've come to the right place. You can find water well locations and data at this page. Preventing Contamination Materials from many common facilities can contaminate a water well. Take steps to protect your well water from contamination sources. According to Texas law, the wellhead must be at least: 50 feet from any septic tank, cistern, property boundary, and/or non-potable well, 100 feet from your septic drain field or any leach field, 150 feet from any feed storage area, pesticide or fertilizer storage area, or shelter or yard for pets or livestock, and, 250 feet from a manure stack or liquid waste disposal system. Further Reading Texas A&M Agrilife Extension: "Maintain Your Septic System to Protect Well Water " Texas A&M Agrilife Extension: "Protect Your Water Well During Drought " Texas A&M Agrilife Extension: "Well Owner's Guide to Water Supply " National Ground Water Association: "Well Owner Maintenance Practices " Plugging Abandoned Wells Under Texas law, landowners/well owners are responsible for plugging abandoned wells on their property and are liable for any groundwater contamination or injury that results from the wells. Like other wells, an abandoned well is a direct conduit from the ground surface to the aquifer below. Contaminants that enter the well move directly into the aquifer. If a concentrated chemical enters a well, it may move into the aquifer and threaten human health and the environment. It can also put other wells at risk for contamination, particularly those on the same property or those close to the abandoned well. Before you begin the process of plugging an abandoned well, a plugging application must be submitted to the District first for authorization. Please contact the District Office for more information and see our Rules, Forms, & Fees page for the Notice of Intent to Drill, Modify, or Plug. You will need to hire a licensed water well driller or pump installer to seal and plug the abandoned well. Major Flooding Can Contaminate Private Water Wells Large flood events, which the Texas Hill Country is prone to, can contaminate your private water well. However, disinfection can eliminate or reduce harmful bacteria, viruses, or other microorganisms that may be found in your drinking water after flooding in your area. If your well system is damaged, the following instructions for the disinfection process will not work. An indication that your well is damaged can be a decrease in water pressure once turned on. Contact a certified well or pump contractor for examination. It is extremely important to not use contaminated water for: drinking, cooking, making ice, bathing in any form, washing clothes or dishes. After a flood, ingesting or being exposed to contaminated water can cause illness. If you think your well system may be contaminated, some alternative options for safe water include: using bottled water, boiling water for five minutes, using water from a source you know is not contaminated. If your water well was subject to flooding, give the Trinity Glen Rose District a call for assistance in mitigating your flooded well (210-698-1155). Here is an excellent article from the Groundwater Foundation. Groundwater Contamination Article To learn how to disinfect a private water well, click on the red button below for instructions from Texas A&M Agrilife. How to Disinfect a Private Well After Flooding

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 UPCOMING MEETINGS TGR Board Meetings Regular Board Meeting Date: October 15 , 2026, 10:00 am Location: District Office Conference Room, 12274 Bandera Rd. #106, Helotes, TX 78023 Current Board Meeting Agenda Board Meeting Archives TGR Board Log In Member Resources

Here you will find the latest research by the Trinity Glen Rose District in our effort to learn about the Trinity Aquifer. Water Planning The TGRGCD was created to address groundwater issues or problems within the District overlaying Trinity group of aquifers. The District includes data from the TWDB’s Groundwater Availability Models (GAMs), input from the Groundwater Management Area 9 cooperative planning process, public input, and the most current and accurate site-specific data available in the development of its management plan to preserve, protect and conserve the Aquifer. The District also cooperates with adjacent groundwater districts, Groundwater Management Area 9, Regional Water Planning Groups, local water purveyors and stakeholders, and adjacent counties with similar aquifers and/or groundwater usage to ensure a collaborative means of protecting water supplies in this area of the state. Groundwater Management Area 9

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.

pollution prevention campaign 2020 These are the galleries of photos shot in each of the six major parks located in the Trinity Glen Rose District. These photo galleries were set up so people could view and download any or all of the photos. If you want to view slide shows of these parks, just click here . Remember, these parks are not only beautiful and peaceful to walk through, they also serve to help prevent pollution from running off into the streams and aquifers, like the Trinity Glen Rose Aquifer, in Bexar County.

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

The Trinity Glen Rose Groundwater Conservation District conserves and protects the Trinity Aquifer in Northern Bexar County, Texas. If you need to meet with TGR District staff, please call to make an appointment so you can connect with the appropriate staff person. TGR Mission The TGR was created in 2001 to conserve, preserve, and protect the Trinity Aquifer within the District. CONSERVE - PROTECT - PRESERVE Drought Dashboard South Texas Drought Conditions With the severity of the current drought condition continuing into 2026, the TGR District will be providing up to date information about these conditions are affecting our local aquifers and how you can help. The map to the right is published each week by the U.S. Drought Monitor. As you can see, Bexar County is now mostly in D1-Moderate Drought after having been in D3-Extreme Drought over the last couple of years. The rainfall chart from the National Weather Service shows that rainfall for the San Antonio area is running slightly above average for this time of year. While the heavy rainfall amounts over the July 4th weekend have helped the Bexar County area significantly, the Trinity Glen Rose District is still in Stage 3 of its Drought Management Plan. Local Rainfall Amounts - October Bexar County Map Date: Thursday, October 8 , 2026 None D0 (Abnormally Dry) D1 (Moderate Drought) D2 (Severe Drought) D3 (Extreme Drought) D4 (Exceptional Drought) Click the state map to view Texas Drought Monitor page. Click the chart to view the National Weather Service rainfall report. Drought in the News Texas Water Development Board Weather Report Drought.gov - Online info from National Integrated Drought information System Express-News - April-08-25 - Great overview of current drought Texas Water Newsroom - TWDB Texas Tribune on Water Supply How You Can Help - Click Here QUICK LINKS Board Meeting Info GMA-9 Meeting Information Current Newsletter Seller's Disclosure About Groundwater and Surface Water Rights TGR STATISTICS 302,274 POPULATION 8,689 (Acre Feet) 2025 PRODUCTION 5 DISTRICT PRECINCTS 2 (Drought Stage 2 ) DROUGHT STAGE Conserving Water for Future Generations

Learn about the latest activities of the Trinity Glen Rose District board of directors. TGR DISTRICT REPORTS AND DOCUMENTS TGR District 2025 Annual Report The TGR District Board of Directors approved publishing the District’s 2025 Annual Report. In the report you’ll find how the District performed against its management plan goals, an update of the growth of District operations, and a rundown on how District staff and board members interacted with the community regarding new policies, water conservation opportunities and programs for protecting the water quality in the Trinity Aquifer. Just click the photo to the right to download. TGR District 2025 Annual Financial Audit TGR District FY 2026-2027 Budget TGR District Management Plan 2025 adopted 11-6-2025 TGR ENABLING LEGISLATION The Trinity Glen Rose Groundwater Conservation District was created by HB 2005 during the 77thTexas Legislature . HB 2005 was authored by State Representatives Frank Corte Jr. and John Shields and sponsored by Senator Jeff Wentworth. The bill was signed into law and took effect on September 1, 2001 and confirmed by voters in 2002. The District was created as a result of the Texas Commission on Environmental Quality (TCEQ) designating the Trinity group of aquifers lying within northern Bexar County as a Priority Groundwater Management Area (PGMA). In 2009, the 81st Texas Legislature passed HB1518 allowing an increase of production fees and allowing municipalities to request inclusion of annexed areas into the District as provided by Chapter 36 Texas Water Code. The mission of the District is to provide rules and regulations to manage, conserve, preserve, protect, maximize recharge and prevent waste of the water resources within the section of the Trinity Aquifer located in northern Bexar County.

This the TGR District Precincts Page with a map of the five precincts where representatives are elected. TGR Monitor Wells Interactive Map Ralph Fair Rd. Fair Oaks Ranch Boerne Stage Rd. Blanco Rd. #1 Blanco Rd. #2 La Escondida Shadow Canyon The District has a groundwater monitoring network for the Trinity Aquifer within the District. The monitor well network is used for monitoring water level changes to assess the current conditions of the aquifer and to record long term changes for better management and planning. There are 7 water wells currently monitored by continuous measurement with pressure transducers, where the well is telemetered and transmits the water level measurement to a publicly accessible website. The District works in partnership with the Texas Water Development Board to access this data and assistance with monitor well maintenance. Above is a map of the current monitor wells. By clicking each well name, it will open up more descriptions, data, and hydrographs of the well. Monitor Well Network Expansion Project The District is currently working on expanding its monitor well network through a recent awarded grant through the Texas Water Development Board. As new wells are added, and information is available you will find the new postings here. The project will be completed by May 2028. Monitor Well Expansion Project