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the Houston-Galveston Region, Texas. Lone Star GCD is working with the Subsidence District to make the newer stations available online. The model will simulate the impacts of groundwater use on aquifer water levels and land subsidence throughout the region and will be used to evaluate regulatory scenarios of interest to both subsidence districts. HGSD is divided into three regulatory areas stretching from High Island and Galveston upwards to Hempstead, TX. After collecting and evaluating groundwater-level data for quality control, data are incorporated into a Harris County MUD 501 purchases its water supply from Harris County Municipal Utility District 500, which purchases surface water from the Authority. larger image. While some of the duties and goals are similar to those of groundwater conservation districts, Harris-Galveston Subsidence District (HGSD) is not governed by Chapter 36 of the Texas Water Code. 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. Land subsidence is sinking of the land surface, caused by compressing the many layers of clay beneath the surface. In addition HGSD provides water conservation, education, and outreach programs to underscore the importance of water conservation in the community. According to the Harris-Galveston Subsidence District (HGSD), land subsidence is the sinking of the earth's surface due to subsurface (underground) movements. Neighbors. endobj Subsidence regulation districts and their creation timeline The Harris-Galveston Coastal Subsidence District. Since 2019, the Subsidence District has sponsored research conducted by Southern Methodist University (SMU) that utilizes a novel methodology to evaluate land-surface deformation (subsidence) in the region. Harris-Galveston Subsidence District (HGSD) in Texas was recognized as a WaterSense Partner of the Year for the first time for helping residents and businesses save water outdoors. In the Houston-Galveston region, land subsidence is caused by compaction of fine-grained aquifer sediments (silts and clays) The variables to be explored include: Since the District was created in 1975, our focus has been on preventing subsidence through reasonable regulation of groundwater use, says Mike Turco, General Manager of HGSD, our commitment to cutting-edge research and consistent investment in the highest-quality data collection, with agencies like the USGS, has provided a firm scientific basis for a successful regulatory plan. The new GULF-2023 model will be the latest product in a large body of scientific activities initiated by HGSD. 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. sOsOg_oW uMfM "F6H1#]Q]9gv3] m ]:U3*~=lrz&/tU=j4VRi/Y?Qk#mLiQ&~9zOo,6L#?~"|HJ@uF~[L iaG,):LUCB$\zB+B=zT& Groundwater Conservation District Information (O-Z and Subsidence Districts) For keyboard navigation: First, use Arrow Keys to navigate up and down the districts. Subsequent to establishing the Harris-Galveston Subsidence District, the Texas State Legislature 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. This study provides a basis for future research on subsidence in the Districts area and can inform water managers and planners in the Houston area on the availability of brackish groundwater resources. In the Houston-Galveston region, land subsidence is caused by compaction of fine-grained aquifer sediments (silts and clays) below the land surface due to groundwater withdrawals. Report Street Light Outage 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. Significant brackish groundwater resources exist within the Gulf Coast Aquifer System near Houston, Texas in Harris, Galveston, Fort Bend, and surrounding counties. These units operate in conjunction with the two that have been monitoring land levels in Montgomery County for more than 10 years. Water demands were projected . The cumulative compaction in the Chicot-Evangeline undifferentiated aquifer is measured at 13 Harris-Galveston Subsidence District; Fort Bend Subsidence District; . Learn more: https://lnkd.in/gtXuURxS. A report by: David B. Zilkoski, Lucy W. Hall, Gilbert J. Mitchell, Vasanthi Kammula, Ajit Singh, William M. Chrismer, and Ronald J. Up to 2020, regional water-level altitude maps were created by manually interpolating contours of Water-level altitude, well, and compaction data have been combined in an interactive map that allows The U.S. Geological Survey prepared this dataset in cooperation with the HarrisGalveston Subsidence District, City of Houston, Fort Bend Subsidence District, and Lone Star Groundwater Conservation District. The District office will be closed on Monday, February 20, 2023, in observance of Presidents Day and will reopen during regular business hours on Tuesday, February 21, 2023. This model will provide valuable information to inform the regulatory decision-making of the HGSD and FBSD. 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. In collaboration with Galveston Bay Foundation and Texas A&M Agrilife Extension Service, HGSD . 1999: Regulatory areas converted into 3 primary areas. In cooperation with Harris-Galveston Subsidence District, the City of Houston, Fort Bend County Subsidence District, Lone Star Groundwater Conservation District, and Brazoria County Groundwater Conservation District, the U.S. Geological Survey Texas Water Science Center Gulf Coast Program collects, processes, and interprets groundwater-level . Providing analysis of accurate and up to date predictions on water usage; the enforcement of real disincentives to those who rely too heavily on groundwater; and an unwavering commitment to practicing and promoting water conservation. Most compaction that occurs as a result of groundwater withdrawals is irreversible; even if groundwater 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 Surface water rates dropped from $5.05 to $4.55, and the groundwater pumpage fee went from $4.60 to $4.10 per . In 2021, kriging, a geostatistical interpolation method, was Ground-Water Withdrawals and Land-Surface Subsidence in the Houston-Galveston Region, Texas, 1906-80: R-286: 4/1/1984: TWDB numbered report: Trash The Harris-Galveston Subsidence District is a special purpose district created by the Texas Legislature in 1975 to regulate groundwater withdrawal throughout Harris and Galveston counties in order to prevent land subsidence. This district was created because area residents and local governments were becoming increasingly alarmed by subsidences continued impact on the regions economic growth and quality of life. . =*-SRIbI -|tdAl` Q ka+dzLp[fAh/tGp7=>>q[y,Nz Ma Though subsidence rates are moderate in Fort Bend county, the continued heavy dependence of groundwater use may result in increased subsidence and associated impacts such as flooding and infrastructure damage. GENERAL PROVISIONS Sec.A8801.001.AADEFINITIONS. Last week, some of our Board of Directors and District Staff visited areas that have historically been affected by subsidence and toured important projects that have been implemented to prevent further subsidence in the Houston area. Land subsidence occurs when large amounts of groundwater have been excessively withdrawn from an aquifer. historical year or as the difference in water-level altitude at each well for the water-level data You can also view water levels by visiting the Lone Star Static Well Level Monitoring Network Map. 1 of 11. J.M:xo[q]omJdI Wf@M|$ot-MB@V5J SDh!!FwTtd\#\v?T{DJo"DfTFaF.%I\J'3@$;k 8f regional water-level change maps. Visit smarteraboutwater.org for water conservation resources to help homeowners, businesses, and the community. 2019 Annual Groundwater Report Appendix A, 2019 Annual Groundwater Report Appendix B, 2019 Annual Groundwater Report Appendix C. Pursuant to Fort Bend Subsidence District (the District or FBSD) Resolution No. 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. resulting in subsidence. Next, we traveled to the infamous Brownwood Subdivision, which was abandoned due to substantial subsidence in the 1980s. 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. The District has taken a reasonable approach to groundwater regulation in order to minimize subsidence within its regulatory areas. HGSD has the goal of reducing the area to 20% reliance on groundwater by 2035 and managing water to promote . For almost 50 years, they have been collecting, storing, and sharing data on groundwater abstraction and resulting surface lowering. It has since been turned into the Baytown Nature Center. Regular, precise, automated readings are taken of the elevation of the ground at locations throughout the county. HVMs9W(GEU nQ,bb]4vb3Z_lW=zl%{O;\o%{ebEw All Rights Reserved. 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. =3R{;vBbh *J2q!Ol] 5rR(T/hgb(0XY g;}HcBei3Wbhq+(MH9DX0ayqQ^\I:v@|\S$N=fV(~'|Wo+p&O%b