They have successfully slowed-down land subsidence, decreased flood risks, and overall maintained the viability of the area. The Harris-Galveston Subsidence District (HGSD) is a special purpose district created by the Texas Legislature in 1975. Areas of the nature center show reminiscences of the neighborhood and serve as an important reminder of what subsidence can do. zAG2U&8?fU@. Next, we traveled to the infamous Brownwood Subdivision, which was abandoned due to substantial subsidence in the 1980s. When expanded it provides a list of search options that will switch the . extensometer stations in the 11-county area. GULF-2023 Model Development & USGS Partnership. The District was created to provide for the regulation of groundwater . GALVESTON COUNTY CHAMBERS COUNTY LIBERTY COUNTY WALLER COUNTY 45 249 59 U.S. Department of the Interior U.S. Geological Survey Pamphlet to accompany Scientific Investigations Map 3365 Prepared in cooperation with the Harris-Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, Lone Star Groundwater Conservation District . This is because in addition to sinking land elevations, subsidence contributes to flooding, inundation, or overflow of areas within the district, including rising waters resulting from storms or hurricanes. }D?|=X'W|pqe'p]x/ As the Houston Chronicle reported, Over the years, Texas lawmakers enacted bills to create subsidence or water conservation districts in counties that include Harris, Fort Bend, Montgomery and Galveston. o35d8\,=R/.Y2xTE@;jj?4/gh?D$U2;MrpF&tMF6h-|l-:nSzC~ ER5knSP" zXyY/mY|{mm}x"S8K~"UILrD> Harris-Galveston Subsidence District (coastal Texas, U.S.A.) is worldwide one of the frontrunners in subsidence prevention, by regulating, registering, and permitting the withdrawal of groundwater from deep aquifers. below the land surface due to groundwater withdrawals. Subsidence regulation districts and their creation timeline The Harris-Galveston Coastal Subsidence District. The accuracy of the referenced well land-surface altitude data has improved through time and the most 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. In the event of an emergency, please dial 9-1-1. The Harris-Galveston Subsidence District (HGSD) is a special purpose district created by the Texas Legislature in 1975. Subsidence is known to have occurred in the southern part of Montgomery County based on monitoring and long-term surveying of land surface. Learn more: https://lnkd.in/gtXuURxS. %PDF-1.5 % Deputy General Manager Fort Bend Operations, Now Hiring! Data were compiled and multiple hydrologic parameters were utilized to improve the understanding of the brackish resources within the study area. Harris-Galveston Subsidence District reposted this, Mitigation of human-induced land subsidence starts with the regulation of resource extractions. It has since been turned into the Baytown Nature Center. December 1, 2020. Interpolated modeled water-level altitude surfaces were only used to compute differences when wells were water levels in the aquifer were declining with associated depressuring, dewatering, and compaction All Rights Reserved Water supply evaluation and population projections are underway. The District provides for the regulation of groundwater withdrawal throughout Harris and Galveston counties for the purpose of preventing land subsidence, which leads to increased flooding. groundwater withdrawal on land subsidence in the Houston-Galveston region of Texas. Activities 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. The Lone Star GCD has studied the Gulf Coast Aquifer for a decade and confirmed the reports of many local water suppliers, which state that water levels in the countys aquifers have declined at an alarming rate as a result of deficit pumping. Brazoria County Groundwater Conservation District, Lone Star Groundwater Conservation District. Chicot-Evangeline (undifferentiated) and Jasper, which are composed of laterally discontinuous deposits Subsequent to establishing the Harris-Galveston Subsidence District, the Texas State Legislature Chicot-Evangeline aquifer in southeastern Harris County, and correspondingly, by 1979, as much as 10 of Houston, Surface water rates dropped from $5.05 to $4.55, and the groundwater pumpage fee went from $4.60 to $4.10 per . 301 Jackson Street, Suite 639 5 0 obj adopted as an effective alternative to manual contour interpolation. Alters the flow of creeks and bayous which may increase the frequency and severity of flooding. `c331vf2~+kRbs "cX1K3H3200 iy@Se! g= The reduction in pumpage has resulted in the increase of water- level in the aquifer system in those areas and a reduction in subsidence rates. 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. Subsidence is known to have occurred in the southern part of Montgomery County based on monitoring and long-term surveying of land surface. Regional water-level change maps were constructed by interpreting the compiled water-level altitude data Learn about Land Subsidence in Houston, Galveston and surrounding areas. https://lnkd.in/g-6YkVmS This report, prepared by the U.S. Geological Survey in cooperation with the Harris-Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, Lone Star Groundwater Conservation District, and Brazoria County Groundwater Conservation District, is one in an annual series of reports depicting water-level altitudes and water . water-level altitude data at observation wells in the Houston-Galveston Region. Evaluation of projected population and future water demands, Development of subsidence models to simulate future subsidence based on projected water demands, Measurement of annual water-level to show the impact of conversion requirements on the water-level in the aquifer, Assessment of alternative water supplies including brackish groundwater use and aquifer storage and recovery. Evaluation of Projected Population and Water Demands in Fort Bend County. Application for Groundwater Certificate Replacement, and Acknowledgment of District Regulatory Requirements. Groundwater withdrawn from the Chicot-Evangeline and Jasper aquifers has been the primary source of After collecting and evaluating groundwater-level data for quality control, data are incorporated into a Phone: 281-342-3273 HGSD lies within the boundaries of Groundwater Management Area 14 (GMA 14). In addition HGSD provides water conservation, education, and outreach programs to underscore the importance of water conservation in the community. Land subsidence is the gradual lowering of land-surface elevation. each regional water-level altitude map. While some of the duties and goals are similar to those of groundwater conservation districts, Harris-Galveston . By 1977, an extensive groundwater well-monitoring network had been established and the USGS had collected water-level data that were used to create the first published water-level altitude maps of the Chicot and Evangeline aquifers in the Houston-Galveston region. You can view research studies, model information, and interactive maps under the Science & Research tab of the HGSD website. People who live in the lower lying coastal areas (i.e., lower elevations and flatter topography) have much more reason to be concerned with subsidence than those who reside further inland in areas of higher elevations with more topographic relief. Creation year: 2003 (approved by Brazoria County voters in 2005). University of Houston . In the Houston-Galveston region, land subsidence is caused by compaction of fine-grained aquifer sediments (silts and clays) Further information detailing the data processing and map creation for each published regional Harris-Galveston Subsidence District Permitting Portal Fort Bend Subsidence District Permitting Portal Please use one of these links to reach to the appropriate Permitting Portal. =3R{;vBbh *J2q!Ol] 5rR(T/hgb(0XY g;}HcBei3Wbhq+(MH9DX0ayqQ^\I:v@|\S$N=fV(~'|Wo+p&O%b 2 0 obj Up to 2020, regional water-level altitude maps were created by manually interpolating contours of If you would like to find out more about their strategies and available data, please visit: https://hgsubsidence.org/, 2022 Annual Pumpage Reports are due on January 31, 2023. Website by Abstract Media, Lone Star GCD, 655 Conroe Park North Drive, Conroe, TX, 77303, United States, Lone Star Static Well Level Monitoring Network Map, Lone Star Groundwater Conservation District - Phase 3 Site-Specific Subsidence Investigations, Lone Star Groundwater Conservation District - Phase 2 Subsidence Investigations, Subsidence Study Phase 1 Draft Final Report. The Deputy General Manager serves as the Chief Operating Officer of the Fort Bend Subsidence District and provides the day-to-day leadership, management and vision necessary to ensure that the District has the proper operational controls, administrative and reporting procedures, and people systems in place to effectively complete . Bandera County River Authority & Groundwater District Featured District, Develop population and demand projections for 10 counties through 2100, Conduct alternative water supply assessment, Develop the Gulf Coast Land Subsidence and Groundwater Flow (GULF)-2023 model with US Geological Survey and Texas Water Development Board, Update the analytical subsidence models previously used by the HGSD and FBSD, Groundwater regulation (or lack thereof) in adjacent counties. If you are passionate about water conservation, education, collaboration, and making a positive impact on your community, we invite you to apply today! Since 1977, the USGS Texas Water Science Gulf Coast Program has published regional groundwater maps for By 1977, the withdrawals had resulted in water-level altitude declines of 350 feet below datum in the v24Wf\+p7Ak@Q(lCJ'$6(kKa FdbT41l1Y$k@*nx(7TK6A9. LX 0o9 'c* _Kq3b2'T9I?. Brazoria County Groundwater Conservation District . These efforts have identified and documented the susceptibility of land surface subsidence due to the production of groundwater in the Chicot and Evangeline aquifers. Groundwater Conservation District and, most recently, Brazoria County Groundwater Conservation District The District uses exceptional scientific research to ensure the best available technology and approaches are considered with respect to water management and subsidence monitoring. This dataset documents for 2018 the depth to groundwater measured in wells screened in the Chicot, Evangeline, and Jasper aquifers in the HoustonGalveston region, Texas.
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