The Edwards Aquifer provides San Antonio with an abundant source of groundwater vital to the livelihood of a growing population and an expanding economy. 4500 5500 2000 3500 Corn bu. The water-bearing units are composed predominantly of limestone and dolomite of the Edwards Group and sands of the Trinity Group. A slightly below-average January and February for rainfall turned into a . This is the highest level on record for the month of July and is about five feet away from the all-time record of 703.3 feet in June 1992. . It stretches across thousands of acres over several counties in South Central Texas. Some 45 million years after the end of the Cretaceous Period of high sea level and carbonate and clay deposition, the Edwards Aquifer rocks were frac- tured, faulted, and exposed to rainfall and erosion at the Earth's surface as a result of the faulting that produced the Balcones Escarpment. "The knowledge of how the water level changes from year to year is important because, of course, people here in Texas own groundwater," District Manager . In a well is an aquifer. What is the highest Edwards Aquifer level? Edwards Aquifer Application Cover Page (TCEQ-20705) − Contributing Zone Plan Application (TCEQ-10257) Attachment A - Road Map Attachment B - USGS Quadrangle Map . About the Edwards Aquifer. 0 " Average Daily Pumpage. The level of the J-17 well has ranged from 612 feet during the 1950's drought to 703 feet after historic rains in 1991 and 1992. These sections were used to interpret the location of barriers within the Edwards aquifer. Water Measurements (HPWD Field Technician Supervisor Keith Whitworth makes a water level measurement in one of the 1,345 privately-owned wells in the District's observation well program. (347.68 meters), Top of spillway - 5,249,661 acre-feet. The aquifer level at the J-17 index well in Bexar County rose about seven feet since Wednesday, from 646.5 feet above sea level to 653.6 feet on Monday — the highest since a level of 654.18 feet . A groundwater-flow system analysis was done to understand the flow of groundwater throughout the aquifer system. Pumpage to Date. The Edwards Aquifer Authority has recently enacted legislation to limit the developers ability to install impervious cover over the recharge zone Environmental officials are trying to avoid the wash of pollutants from streets, cars, and new industry into the aquifer from the aquifer, the highest amount on record (Edwards Underground Wa-ter District, 1977), Estimates of water use in the future, due to increased po-pulation pressure, indicate that discharge by pumping will exceed recharge and all of the springs will eventually dry (U,S, Department of the Interior, 1973). EDWARDS AQUIFER 'Yield Per Acre For Typical And High Level Management Crop Unit Irrigated Typical High Level Dryland Typical High Level Grain Sorghum lbs. In early 2021, HPWD field personnel made annual water level measurements in a network of more than 1,300 privately-owned water wells in the Ogallala/ETHP Aquifer. 0 cfs Maximum Edwards Level. About Us. Posted in Environment With Texas back in drought, watering cutbacks resume in San Antonio . Well J-27 is the official Edwards Aquifer water level index well for Uvalde County. The Edwards Aquifer is intensely faulted and fractured carbonate limestone that lies within the Balcones fault zone. A slightly below-average January and February for rainfall turned into a . If you notice any errors in the below information, please contact our Webmaster. 0 mg Maximum Comal Springflow. Starting in January, HPWD field personnel made water level measurements in a network of 1,345 privately-owned water wells completed into the Ogallala/Edwards-Trinity (High Plains) Aquifer. 1145.08. About the Edwards Aquifer. Historical Water Level Chart. It is on a major Edwards flowpath and responds quickly to pumpage and recharge, so it has been used for many decades to record changes in the level of the Aquifer in the San Antonio area. Attachment C - Project Narrative . The dynamics and size of the this geologic anomaly make it one of the most wondrous aquifers in the nation, through its storage capacity, flow characteristics, water producing capabilities and efficient recharging ability. Tag: Edwards Aquifer Authority. 0 mg Minimum Comal Springflow. Located on the eastern edge of the Edwards Plateau in the U.S. state of Texas, it is the source of drinking water for two million people, and is the primary water supply for agriculture and industry in the aquifer's region.Additionally, the Edwards Aquifer feeds the Comal and San Marcos springs, provides springflow . Water level data are maintained by the Edwards Aquifer Authority (EAA). It is one of the greatest natural resources on Earth, serving the diverse agricultural, industrial, recreational, and domestic needs of almost two million users in south central Texas. Aquifer-fed springs in San Marcos and New Braunfels are also flowing at higher than normal rates, especially for this time of year. What is the highest level water can rise to if there is no pump? 730.8 feet The land surface at the top of the J-17 well is at 730.8 feet above sea level, and the downtown area around the Tower of the Americas is around 650 feet above sea level. The dynamics and size of the this geologic anomaly make it one of the most wondrous aquifers in the nation, through its storage capacity, flow characteristics, water producing capabilities and efficient recharging ability. The Edwards aquifer in south-central Texas is one of the most productive aquifers in the Nation and is the primary source of water for the rapidly growing San Antonio area. Now, the once dry sinkhole symbolizing drought now resembles a whirlpool as water gushes through . Meteorologist Sarah Spivey explains how the Edwards Aquifer works Why . City residents further supported aquifer protection in 2000 by approving Proposition 3, which involved a one-eighth cent addition to the local sales tax to acquire and protect sensitive areas over the aquifer via the Edwards Aquifer Protection Program (EAPP). 80 100 40-Cotton lbs. The saturated thickness of this aquifer system increases from less than 100 feet in the north to . (349.1 meters), Maximum water surfce - 5,656,777 acre-feet. Current Edwards Aquifer Level: 0 ' 2022 Statistic Summary. A. to the top of the well B. to the level of the water table C. just below the level of the water table D. It depends how deep the well is. 600 800 - - Peanuts lbs. 0" . Original data reported in feet above mean sea level, and transcribed by TWDB to feet below land surface using the estimated land surface elevation provided by the EAA. The spring is known as the headwaters of the San Antonio River, and it only flows when water in the Edwards Aquifer reaches a certain level. A principal aquifer is defined as a regionally extensive aquifer . Months of heavy rains have raised the water level in the Edwards Aquifer to its highest since 2010. High Temp. The soluble Level Bexar (J-17) Level Medina. Now the aquifer is about 10 feet above its historical May average, but far from its all-time high of 703 feet in June 1992. (346.0 meters), The lake elevation is thirteen feet into the flood pool. The Edwards Aquifer Authority is a groundwater district, mandated by the 1993 Edwards Aquifer Authority Act. Original data reported in feet above mean sea level, and transcribed by TWDB to feet below land surface using the estimated land surface elevation provided by the EAA. 1135. Now the aquifer is about 10 feet above its historical May average, but far from its all-time high of 703 feet in June 1992. Twenty-seven geohydrology sections illustrate structural and stratigraphic relationships within the 180-mi-long Edwards aquifer. The average saturated thickness of the Ogallala/Edwards-Trinity (High Plains) Aquifer within the District is 55 feet (2019-2020). The Edwards Aquifer Authority is the agency . LUBBOCK, Texas (KCBD) - The High Plains Underground Water Conservation District has finished its water level measurements for 2022, which show an average decline of -0.63 feet of the Ogallala/Edwards-Trinity Aquifer over the previous year. The Edwards Aquifer is a unique groundwater system and one of the most prolific artesian aquifers in the world. In . Its water-producing units include sandstone of the Antlers Formation (Trinity Group) and limestone of the overlying Comanche Peak and Edwards formations. asked Aug 9, 2019 in Environmental & Atmospheric Sciences by Maria. The Edwards Aquifer is one of the most prolific artesian aquifers in the world. Water level data are maintained by the Edwards Aquifer Authority (EAA). 1140.4. Disastrous flooding below Lake Amistad washes lowest . Roughly 70 percent of San Antonio's drinking water originates as recharge occurring west of Bexar County. 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