the Houston-Galveston Region, Texas. Contact Us. To address the issues associated with land-surface subsidence and compaction, the 64th Texas State In fact, the USGS serves as the hub for an annual multi-agency data collection effort that includes the Brazoria County GCD, Lone Star GCD, the City of Houston, and both subsidence districts. Alters the flow of creeks and bayous which may increase the frequency and severity of flooding. SMU is developing subsidence maps from 1992 to 2023 by integrating data obtained from multi-temporal Interferometric Synthetic Aperture Radar (InSAR), a remote sensing technique using data collected from orbiting satellites, to quantitatively evaluate subsidence over specific periods of time across the region. USGS measures groundwater levels in over 700 wells in an 11-county area annually in the of gravel, sand, silt, and clay. The district implemented their first groundwater regulatory plan in 1976. The Subsidence District has adopted regulations requiring reduction of groundwater withdrawals through conversion to alternate source water (e.g., surface water) in certain areas within the . Click for Now Hiring! Phone: 281-342-3273 Click here to read our blog about how it could be addressed with a new USGS subsidence mapping tool. A report by: David B. Zilkoski, Lucy W. Hall, Gilbert J. Mitchell, Vasanthi Kammula, Ajit Singh, William M. Chrismer, and Ronald J. %PDF-1.3 Working with surface water suppliers the HGSD controls subsidence by managing the use of groundwater resources in Harris and Galveston Counties. Additionally, the US Geological Survey (USGS) has begun work on the GULF-2023 model, with an anticipated completion date in the fall of 2021. Contact information for the Harris-Galveston Subsidence District. in the Houston-Galveston region to provide for the regulation of groundwater withdrawals in areas within The Board meetings are typically held at 5:30 PM on the first Wednesday of the month at The Lakehouse at Towne Lake, 10000 Towne Lake Parkway, Cypress, Texas 77433. The Houston area's two subsidence districts the Harris-Galveston Subsidence District, HGSD, and the Fort Bend Subsidence District have worked to monitor subsidence and mitigate it through a variety of water management efforts. Creation year: 2001 (77th Texas Legislature). This effort has published aquifer levels and subsidence data since 1975 and is a great example of what can be accomplished through sustained collaboration between, city, county, regional, and federal partners. Since the mid 1970s, the USGS and the Harris-Galveston Subsidence District have conducted scientific investigations and subsidence monitoring for over 40 years. Occasionally, the district undertakes a review of the regulatory plan, working with other entities to assess future water needs and ensure that the plan will be successful in ceasing subsidence. In order to evaluate the performance of the projection methodology which informed the 2013 DRP, the short-term projections from the RGUP have been evaluated against recent estimates of population and water demand from multiple sources at various geographic scales. The data is temporarily stored in an on-site monitor and periodically uploaded to computers at the Harris Galveston Subsidence District. The RGUP was jointly supported by the Harris-Galveston Subsidence District, the Fort Bend Subsidence District, and the Lone Star Groundwater Conservation District. The U.S. Geological Survey, in cooperation with the Harris Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, Brazoria County Groundwater Conservation District, and Lone Star Groundwater Conservation District, has produced this dataset of water-level changes and approximate water-level altitudes in the Chicot, Evangeline, and Jasper aquifers in the Houston-Galveston region, Texas. The Harris-Galveston Subsidence District is a special purpose district created by the Texas Legislature in 1975 to regulate groundwater withdrawal throughout Harris and Galveston counties in order to prevent land subsidence. <>stream 1976: First regulatory area (Area of Concentrated Emphasis, ACE) established. The accuracy of the referenced well land-surface altitude data has improved through time and the most Search form lists all water wells with a HGSD permit in a given area. Population projections were developed at the census block level for each decade from 2010 to 2070 using the 2010 U.S. Census as a population baseline. When we pump large amounts of groundwater from the aquifers beneath us, we pull water out of the many layers of clay, which can cause the clay to compact. This report, prepared by the U.S. Geological Survey in cooperation with the Harris-Galveston Coastal Subsidence District, documents and refines the locations of principal faults mapped in the Houston, Texas, metropolitan area in previous studies. The Lone Star Groundwater Conservation District in 2012 purchased six Periodically Accessible Monitors (PAMs), which are specifically designed to detect subsidence. Now hiring a Deputy General Manager for Fort Bend Operations. Water demands were projected for individual water supply systems based on average per capita demands observed from 2000 to 2008. Alternative water sources, like treated surface water, prevents excessive groundwater pumping, thereby minimizing subsidence. The results of this study confirm the potential for compaction in the Jasper aquifer and subsidence to occur from brackish groundwater development particularly in up-dip areas near where the Jas-per is being used for freshwater supply. Star Groundwater Conservation District. Chicot-Evangeline (undifferentiated) and Jasper, which are composed of laterally discontinuous deposits Data provided by the USGS. Ground-Water Withdrawals and Land-Surface Subsidence in the Houston-Galveston Region, Texas, 1906-80: R-286: 4/1/1984: TWDB numbered report: Activities established the Fort Bend Subsidence District and two groundwater conservation districts: Lone Star You can also view water levels by visiting the Lone Star Static Well Level Monitoring Network Map. Data were compiled and multiple hydrologic parameters were utilized to improve the understanding of the brackish resources within the study area. In 2001, the Texas legislature created the West Harris County Regional Water Authority (the Authority) to, among other things, reduce groundwater usage in, and to provide surface water to, the western portion of Harris County and a small portion of Fort Bend County. By 1977, the withdrawals had resulted in water-level altitude declines of 350 feet below datum in the HGSD is divided into three regulatory areas stretching from High Island and Galveston upwards to Hempstead, TX. A focus of these scenarios will be on the variables that minimize subsidence in the future while accounting for the availability of alternative water supplies. Establishes policy regarding groundwater regulation withdrawals to control subsidence. These sites are being cooperatively run and operated by the following agencies. v24Wf\+p7Ak@Q(lCJ'$6(kKa FdbT41l1Y$k@*nx(7TK6A9. LX 0o9 'c* _Kq3b2'T9I?. This district was created because area . Harris-Galveston Subsidence District, Fort Bend Subsidence District, and the USGS are working closely with the Texas Water Development Board to ensure that the GULF-2023 model will be available as a regional tool for GMA 14 to provide the best science and planning information for the region. For detailed information on the processing methodology, please refer to https://ascelibrary.org/doi/10.1061/%28ASCE%29SU.1943-5428.0000399. 229 0 obj <>stream Overview of the Harris-Galveston Subsidence District planning process. Learn more: https://lnkd.in/gtXuURxS. During todays Board Meeting, Rosa Alvarez, Susan Baird, Sarah Benavides, Steve Gillett, Katherine Mears, and Don Johnson were reappointed and took their Oath of Office. Bend County Subsidence District, Lone The Harris-Galveston Subsidence District maintains GPS monitoring stations in Harris, Galveston, Fort Bend and surrounding counties. Harris-Galveston Subsidence District. The Subsidence District has adopted regulations requiring reduction of groundwater withdrawals through conversion to alternate source water (e.g., surface water) in certain areas within the Subsidence Districts jurisdiction, including the land within Harris County MUD 501. When expanded it provides a list of search options that will switch the . HVMs9W(GEU nQ,bb]4vb3Z_lW=zl%{O;\o%{ebEw %PDF-1.5 % GENERAL PROVISIONS Sec.A8801.001.AADEFINITIONS. We are hiring a Deputy General Manager Fort Bend Operations to join our executive leadership team. Pay Your Water Bill The primary aquifers in the Gulf Coast aquifer system in the Houston-Galveston region are the This position supports both Harris-Galveston Subsidence District and Fort Bend Subsidence District as the water conservation subject matter expert providing administrative, technical, and educational information on water conservation, water science, and other natural science topics to a broad audience. subarea, and area B. About Us | Programs and Education | Management and Rules | News& Publications | Meeting Info | Permitting | Aquifers Data& Maps | Contact Us, Copyright 2004-2016 Lone Star Groundwater Conservation District We look forward to each Directors contribution to the HGSDs Board. Lone Star Groundwater Conservation District - Phase 3 Site-Specific Subsidence Investigations (December 12, 2022), Lone Star Groundwater Conservation District - Phase 2 Subsidence Investigations (January 26, 2022), Subsidence Study Phase 2 Final Report (as approved on May 10, 2022), Subsidence Study Phase 2 Task 1 and Task 2 Draft Report, Subsidence Study Phase 2 Scope of Work (as approved on April 13, 2021), Subsidence Study Phase 1 Final Report (as approved on August 11, 2020), Subsidence Study Phase 1 Draft Final Report (pending Board approval on August 11, 2020). This is accomplished through the careful regulation of groundwater withdrawals, working in collaboration with surface water suppliers. groundwater withdrawal on land subsidence in the Houston-Galveston region of Texas. After successfully implementing InSAR mapping in the Houston-Galveston region in 2019, this new project will harness the complimentary capabilities of the Subsidence Districts subsidence monitoring network and SAR imagery to develop these historical deformation maps. If you are a leader with a passion for executing projects that improve our local communities, check out this opportunity! Lone https://lnkd.in/g-6YkVmS hbbd```b``NA$EHD]c@$wX2$'u1fHY b Subsidence Risk Assessment and Regulatory Considerations for the Brackish Jasper Aquifer. Harris-Galveston Subsidence District in Boydton, VA Expand search. endstream endobj 191 0 obj <>stream Up to 2020, regional water-level altitude maps were created by manually interpolating contours of water levels in the aquifer were declining with associated depressuring, dewatering, and compaction Groundwater Conservation District and, most recently, Brazoria County Groundwater Conservation District Areas of the nature center show reminiscences of the neighborhood and serve as an important reminder of what subsidence can do. An overview of the Harris-Galveston Subsidence District permitting process and fees. H\j@}l/6 6i!i$U6"o=B9|c7MfwzQCyaks,Oi&LOcuVcc6_z0Y.MTQM>lW~2Miu8hV4c:ul:fU,+?/Q_spA.%Y[Hliicc-iiiiooo#t8zAG#+0SL W`y$[yzzxzzzxzzzxzzzxzzzxzzzxzzzxzgJ0Fi6xN4._3I]8o destroyed or were not measured during the individual publication study period. If the elevation of your house is only 10 feet above sea-level and you lose 10 feet of elevation because of subsidence, your house is now under water. UNESCO Land Subsidence International Initiative. Legislature authorized the establishment of the Harris-Galveston Subsidence District to regulate and As a result of Senate Bill 1336 in the 84th Legislature, the Edwards Aquifer Authority is no longer required to submit management plans to the TWDB. All Rights Reserved. According to the Harris-Galveston Subsidence District (HGSD), land subsidence is the sinking of the earth's surface due to subsurface (underground) movements.

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