Surface water rates dropped from $5.05 to $4.55, and the groundwater pumpage fee went from $4.60 to $4.10 per . The cumulative compaction in the Chicot-Evangeline undifferentiated aquifer is measured at 13 Groundwater-level and compaction data are available as part of USGS data products. Land subsidence is the gradual lowering of land-surface elevation. To learn how to submit your report online, check out our instructional video! City Harris County MUD 501 purchases its water supply from Harris County Municipal Utility District 500, which purchases surface water from the Authority. Harris-Galveston Subsidence District Meeting Agendas, Minutes and Hearing Notices. below the land surface due to groundwater withdrawals. yV'1p s$&:j},WF") ]WdO9mu]eh+5K[1T@sPdQ$j%j\\u)) ->qT?^R:@RY!cpu)88p/~p]7 WEWj$U$e'I|MVfgyUcgwy~h8qZ hK}&EiQ';[P2 =Yal Working with surface water suppliers the HGSD controls subsidence by managing the use of groundwater resources in Harris and Galveston Counties. 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 . The public hearing fulfills the requirements of the Districts enabling legislation, which states that the Board of Directors shall hold a public hearing to take testimony concerning the effects of groundwater withdrawals on the subsidence of land within the District during the preceding year. . Numerous subsurface faults have been documented beneath the Houston metropolitan area at depths of 3,200 to 13,000 feet. The live data from the two older PAM units may be viewed by clicking on the Subsidence Monitoring Network Map (If you have Google Earth installed on your computer, simply click on the .kml file, and Google Earth will automatically open, showing you the network map.). V(&xH:1dxB0"5Cu)edL9x2Z~Q`&1R`oC1NTEGxfP8QMiuy6T8-%HI Y{*,t wBh# She earned her Bachelor's degree in Biology and Environmental Studies from Baylor University and her . Request for Qualifications and other important information related to doing business with the Harris-Galveston Subsidence District. 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. Richmond, TX 77469 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 District was created to provide for the regulation of groundwater withdrawal throughout Harris and Galveston counties for the purpose of preventing land subsidence, which leads to increased flooding. They have successfully slowed-down land subsidence, decreased flood risks, and overall maintained the viability of the area. These efforts have identified and . Grant opportunities to implement projects that help reduce water use in the HGSD Regulatory Areas. Explore Groundwater-Level and Compaction Data in the Chicot, Evangeline and Jasper Aquifers. The U.S. Geological Survey (USGS) prepared this dataset in cooperation with the HarrisGalveston Subsidence District, City of Houston, Fort Bend Subsidence District, Lone Star Groundwater Conservation District, and Brazoria County Groundwater Conservation District. In 2021, kriging, a geostatistical interpolation method, was Information about the Management team at the Harris-Galveston Subsidence District. You can also view water levels by visiting the Lone Star Static Well Level Monitoring Network Map. Kasmarek, M.C., and Ramage, J.K., 2016, Water-Level Measurement Data Collected during 2015-2016 and Approximate Long-term Water-Level Altitude Changes of Wells Screened in the Chicot, Evangeline, and Jasper Aquifers, Houston-Galveston Region, Texas: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F77H1GP3. Annual Pumpage Reports are due by January 31, 2023. Lone Star GCD is working with the Subsidence District to make the newer stations available online. 229 0 obj <>stream Want to learn more about how subsidence has impacted this region? The Harris-Galveston Subsidence District is a special purpose district created by the Texas Legislature in 1975. This dataset was created to provide resource managers, public officials . Click here for more information about the Authority. Learn about Land Subsidence in Houston, Galveston and surrounding areas. This site is a publicly available, searchable, online database of water information. interprets groundwater-level and aquifer-sediment-compaction data to understand the effects of 1999: Regulatory areas converted into 3 primary areas. The districts vision is to manage the groundwater resources so that, in the near future, the amount of groundwater withdrawn from the Gulf Coast Aquifer is no more than the average annual effective recharge to the Gulf Coast Aquifer System. Harris County MUD 501 is located within the boundaries of the Authority. These units operate in conjunction with the two that have been monitoring land levels in Montgomery County for more than 10 years. water levels in the aquifer were declining with associated depressuring, dewatering, and compaction ?Jj YV3YIi}SgQ)btH24[0PeU$'r-1[hBy"&aH@"F0Z1&N'f`^~D-ocr@:A /TG}]u9b l. in the Houston-Galveston region to provide for the regulation of groundwater withdrawals in areas within Phone: 281-342-3273 This district was created because area . Pay Your Tax Bill Online 1700 North Congress Avenue, Austin, TX 78701TEL: 512-463-7847 / FAX: 512-475-2053, Panhandle Groundwater Conservation District, Panola County Groundwater Conservation District, Pecan Valley Groundwater Conservation District, Permian Basin Underground Water Conservation District, Pineywoods Groundwater Conservation District, Plateau Underground Water Conservation and Supply District, Post Oak Savannah Groundwater Conservation District, Prairielands Groundwater Conservation District, Presidio County Underground Water Conservation District, Real-Edwards Conservation and Reclamation District, Red River Groundwater Conservation District, Red Sands Groundwater Conservation District, Reeves County Groundwater Conservation District, Refugio Groundwater Conservation District, Rolling Plains Groundwater Conservation District, Rusk County Groundwater Conservation District, San Patricio County Groundwater Conservation District, Sandy Land Underground Water Conservation District, Santa Rita Underground Water Conservation District, Saratoga Underground Water Conservation District, South Plains Underground Water Conservation District, Southeast Texas Groundwater Conservation District, Southern Trinity Groundwater Conservation District, Southwestern Travis County Groundwater Conservation District, Starr County Groundwater Conservation District, Sterling County Underground Water Conservation District, Sutton County Underground Water Conservation District, Terrell County Groundwater Conservation District, Trinity Glen Rose Groundwater Conservation District, Upper Trinity Groundwater Conservation District, Uvalde County Underground Water Conservation District, Victoria County Groundwater Conservation District, Wes-Tex Groundwater Conservation District, Wintergarden Groundwater Conservation District, Asset Management Program for Small Systems, State Water Implementation Fund for Texas (SWIFT), Guidance & References for Online Loan Application, State Water Implementation Fund for Texas, 6th Planning Cycle Information (2026 RWPs), 2021 Regional Water Plans & Previous Plans, Regional Water Planning Data Entry Application (RWP22) Training, District Information (O-Z and Other Districts), Extended Naturalize Flow and Reservoir Evaporation, Flood Planning Useful Links and Resources, Drought Response and Financial Assistance, Water Conservation Plan ~ Utility Profile, Historical Water Loss Audit and Conservation Annual Report Data, Industrial, Commercial & Institutional (ICI), Permanent Rules - Effective January 1, 2019, Brackish Resources Aquifer Characterization System, Notice of Nondiscrimination and Reasonable Accommodation, Texas Natural Resources Information System (TNRIS), Texas Water Infrastructure Coordination Committee (TWICC), District was created by Petition to the Texas State Board of Water Engineers, 1955, (formerly Martin County Underground Water Conservation District), (formerly Haskell/Knox County Underground Water Conservation District). The Authoritys GRP sets forth the Authoritys plan to comply with the Subsidence District regulations, construct surface water facilities, and convert users from groundwater to alternate source water (e.g., surface water). Click here for more information about the Subsidence District. 1045, 1989 Tex. as the difference in water-level altitude at each well for the water-level data collection year and the After collecting and evaluating groundwater-level data for quality control, data are incorporated into a 18-396 passed on March 28, 2018, the Board of Directors held the Annual Groundwater Hearing beginning at 2:30 p.m. on May 23, 2018. The districts mission is to control land subsidence and manage groundwater resources through regulation, conservation, and coordination with suppliers of alternative water sources to assure an adequate quantity and quality of water for the future. 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. 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, spawned from their original research that showed subsidence in southern Montgomery County was caused by exploitation of the Jasper aquifer, will investigate the combined effects of climate changes on coastal subsidence to enhance understanding of the deformation process. 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. In addition to regulation, the district also conducts research to enhance its understanding of the Upper Gulf Coast aquifer to better manage subsidence. Harris-Galveston Subsidence District in Boydton, VA Expand search. The Science and Research Plan is designed to be a dynamic document with the intention to provide clarity to the strategic direction of the District and guidance to future science and research priorities in support of the District Regulatory Plan. Overview of Science and Research conducted by the Harris-Galveston Subsidence District, The strategic direction for science and research conducted at the Harris-Galveston Subsidence District. endstream endobj 191 0 obj <>stream With the last regulatory plan adopted in 2013, HGSD recently initiated a joint regulatory plan review in cooperation with the Fort Bend Subsidence District (FBSD) in January 2020. 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. Harris County MUD 501 is within the boundaries of the Harris Galveston Subsidence District (the Subsidence District) which regulates groundwater withdrawal. levels rise, compacted sediments and the associated land-surface lowering would remain as-is. 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 . Register a well, permit applications, renewals, and amendments. destroyed or were not measured during the individual publication study period. Groundwater Conservation District Information (O-Z and Subsidence Districts) For keyboard navigation: First, use Arrow Keys to navigate up and down the districts. water-level altitude data at observation wells in the Houston-Galveston Region. Brazoria County Groundwater Conservation District, Click for Now hiring a Deputy General Manager for Fort Bend Operations. 1 of 11. If you are a leader with a passion for executing projects that improve our local communities, check out this opportunity! Trash Water Conservation Program Coordinator, 2022 Annual Groundwater Report Public Hearing Notice, https://ascelibrary.org/doi/10.1061/%28ASCE%29SU.1943-5428.0000399. Land Subsidence. Land subsidence is sinking of the land surface, caused by compressing the many layers of clay beneath the surface. 2001: Established by the Texas State Legislature. In addition HGSD provides water conservation, education, and outreach programs to underscore the importance of water conservation in the community. An overview of the Harris-Galveston Subsidence District permitting process and fees. established the Fort Bend Subsidence District and two groundwater conservation districts: Lone Star Harris-Galveston Subsidence District wishes you and your loved ones a safe and happy holiday season! 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. <> endstream endobj startxref Some natural land subsidence also occurs over long periods of time, due to natural settling. Removing water from fine-grained aquifer sediments compresses the aquifer leaving less pore space available to store water resulting . 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. 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. 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. Subsidence can be an important issue in certain areas such as the Gulf Coast region. Lone accurate land-surface altitude data available at the time of publication were used in the creation of HVMs9W(GEU nQ,bb]4vb3Z_lW=zl%{O;\o%{ebEw The District enjoyed visiting the Houston Museum of Natural Science at Sugar Lands newest attraction, Ocean Bound: A Deep Dive Into the Science of How Water Flows. This interactive exhibit provides a look into how actions on land can impact water and even has an area designated for learning more about groundwater and subsidence. The District has taken a reasonable approach to groundwater regulation in order to minimize subsidence within its regulatory areas. Subsidence Risk Assessment and Regulatory Considerations for the Brackish Jasper Aquifer. 2003: Regulatory areas divided into area A, which includes the Richmond-Rosenberg HGSD is divided into three regulatory areas stretching from High Island and Galveston upwards to Hempstead, TX. The Harris-Galveston Subsidence District, created in 1975, was the first of these districts. 1 of 3. 1975: Established by Texas State Legislature. users to view annual water-level altitudes, water-level changes over time, and historical time series of 2 0 obj 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). <> Copyright 2023 The Texas Alliance of Groundwater Districts. For more information, or to learn how to submit your report online, visit: https://lnkd.in/gSz5XemV. The Harris-Galveston Subsidence District (HGSD) is a special purpose district created by the Texas Legislature in 1975. 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. Get regular updates on Lone Star Groundwater Conservation District. Then, use either Enter or Space key to open the selected district. Instead of losing a foot every 10 years, many . available to store water resulting in the lowering (sinking or settling) of the land-surface. In the Houston-Galveston region, land subsidence is caused by compaction of fine-grained aquifer sediments (silts and clays) xX6~R-N\dq?%cBa:77#KZO=~`[h[VPC-!q8cVBv1j0Bh}vcu-7~6G~@ ucM,-s-9i4_g8jO00J\iOSktweZ.wfbuy9;Q^WGeQUab=~2_GK Z/fox$mTLMNX/ke5'a(7X=NCi>26*'$!3 According to a 2017 USGS report, Water levels in the southeastern parts of the study area in the Chicot and Evangeline aquifers have generally continued to rise since 1977, while water levels in the northern and western parts of Harris County and Southern Montgomery County have continued to decline. For non-emergency law enforcement matters, please contact the Harris County Sheriffs Office non-emergency line at (713) 221-6000. These sites are being cooperatively run and operated by the following agencies. Reduces the ability to store water in an aquifer. 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 . Since its creation, subsidence rates have slowed greatly. =3R{;vBbh *J2q!Ol] 5rR(T/hgb(0XY g;}HcBei3Wbhq+(MH9DX0ayqQ^\I:v@|\S$N=fV(~'|Wo+p&O%b The Harris-Galveston Coastal Subsidence District has required reduced groundwater use to slow or stop subsidence (sinking of ground level) in Harris and Galveston Counties. 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. Entdecke 1976 Pressefoto Charles "Chuck" R. Bowcock, Harris-Galveston Kstensenkung in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! Damages roadways, bridges, building foundations, and other infrastructure. Field inspector Robert Loveland sets up GPS monitoring site P013 that delivers data on land subsidence, or the sinking of land surface, to the Harris-Galveston Subsidence District . This position serves as the Chief Operating Officer of the Fort Bend Subsidence District and provides the day-to-day leadership, management, and vision necessary to effectively complete the Districts mission. If you are passionate about water conservation, education, collaboration, and making a positive impact on your community, we invite you to apply today! geographic information system (GIS) and used for the construction of regional water-level altitude and Available job opportunities with Harris-Galveston Subsidence Distrcit. This button displays the currently selected search type. When expanded it provides a list of search options that will switch the . %%EOF historical year or as the difference in water-level altitude at each well for the water-level data % Lone Star Groundwater Conservation District, Brazoria County Groundwater Conservation District, Fort 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. 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. We look forward to each Directors contribution to the HGSDs Board. For detailed information on the processing methodology, please refer to https://ascelibrary.org/doi/10.1061/%28ASCE%29SU.1943-5428.0000399. Harris-Galveston Subsidence District . A report by: David B. Zilkoski, Lucy W. Hall, Gilbert J. Mitchell, Vasanthi Kammula, Ajit Singh, William M. Chrismer, and Ronald J. 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. feet of subsidence had occurred in the Houston-Galveston region. Harris-Galveston Subsidence District, the The District was created to provide for the regulation of groundwater withdrawal. For keyboard navigation: First, use Arrow Keys to navigate up and down the districts. The Harris-Galveston Subsidence District, in cooperation with the Fort Bend Subsidence District, the Brazoria County Groundwater Conservation District, the Lone Star Groundwater Conservation District, the University of Houston, and the Brazosport Water Authority maintains a subsidence monitoring network that is constantly evolving and requires consistent investment. 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. Community In addition HGSD provides water conservation, education, and outreach programs to . Elections While some of the duties and goals are similar to those of groundwater conservation districts, Harris-Galveston . Brazoria County Groundwater Conservation District . To address the issues associated with land-surface subsidence and compaction, the 64th Texas State GULF-2023 Model Development & USGS Partnership. )|#.`/D;WcM0z,B] mXU+^yZ!9K254cC.(WjoFgpK1EpvgoV "H7 OKQ:kHLa`Z=Hmm'rh`:Qfb5.!H{ 6+sBQ Pay Your Water Bill of gravel, sand, silt, and clay. endstream endobj 190 0 obj <>stream hmo0?:;T!AR~p!A+~g`e]rw>F "1T"@0D$L$!A!JyXUJsm\Ouu~o:p11G5r[U=w/ QdQUq] Finally, use the Tab key to toggle the links within each districts. Creation year: 1975 (64th Texas Legislature). Subsidence regulation districts and their creation timeline The Harris-Galveston Coastal Subsidence District. 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. The District was created to provide for the regulation of groundwater . Southeast Texas Groundwater Conservation District; Other Districts. 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. In the event of an emergency, please dial 9-1-1. 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. Subsidence is known to have occurred in the southern part of Montgomery County based on monitoring and long-term surveying of land surface. Alternative water sources, like treated surface water, prevents excessive groundwater pumping, thereby minimizing subsidence. 0 endobj Purpose: To manage groundwater withdrawal and enforce groundwater regulation within the district to prevent subsidence. By Vanessa Holt. Fax: 281-232-3355. Regional water-level change maps were constructed by interpreting the compiled water-level altitude data Fort Bend Subsidence District The Harris-Galveston Subsidence District (District) is a special purpose district created by the Texas Legislature in 1975. Legislature authorized the establishment of the Harris-Galveston Subsidence District to regulate and Field inspector Robert Loveland sets up GPS monitoring site P013 that delivers data on land subsidence, or the sinking of land surface, to the Harris-Galveston Subsidence District, Tuesday . Alters the flow of creeks and bayous which may increase the frequency and severity of flooding. Removing water from fine-grained aquifer sediments compresses the aquifer leaving less pore space Neighbors. Water-level change in the Gulf Coast Aquifer, 1977 to 2018. 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. Click here to read our blog about how it could be addressed with a new USGS subsidence mapping tool. Harris-Galveston Subsidence District reposted this, Mitigation of human-induced land subsidence starts with the regulation of resource extractions. Water supply evaluation and population projections are underway. HGSD conducts regulatory planning on a regular basis to confirm that adopted regulations have reduced subsidence rates. We are hiring a Deputy General Manager Fort Bend Operations to join our executive leadership team. Purpose: To maintain the quality and availability of Brazoria Countys groundwater resources for current users and future generations. Click here to view information and publications from USGS about groundwater and subsidence on the Texas Gulf Coast. Visit smarteraboutwater.org for water conservation resources to help homeowners, businesses, and the community. 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 HGSD lies within the boundaries of Groundwater Management Area 14 (GMA 14). Newsletters The district proactively works with its groundwater users to address issues such as how to most efficiently use groundwater, control and prevent waste, control and prevent subsidence, and address drought conditions. On our last stop, we toured theCity of Houstons Northeast Water Purification Plant Expansion. 1 0 obj The Authority has entered into a Water Supply Contract with the City of Houston to obtain treated surface water from Houston. 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. December 1, 2020. Gen. Laws 4251). adopted as an effective alternative to manual contour interpolation. 186 0 obj <> endobj The Fort Bend Subsidence District was created by the Texas Legislature in 1989 as a conservation and reclamation district (Act of May 26, 1989, 71st Leg., R.S., ch. Harris-Galveston Subsidence District Joins the Winners' Circle. This process is crucial to prevent buildings from flooding. subarea, and area B. EXECUTIVE SUMMARY: The Fort Bend Subsidence District (FBSD) revised its District Regulatory Plan (DRP) in 2013 based on population and water demand projections, which were developed as part of a Regional Groundwater Update Project (RGUP) completed in 2013. 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. Now Hiring! This model will provide valuable information to inform the regulatory decision-making of the HGSD and FBSD. When expanded it provides a list of search options that will switch the search inputs to match the current selection. 9 were here. Types of research sponsored by the District include: Each year the Board of Directors holds a public hearing for the purpose of taking testimony concerning the effects of groundwater withdrawals on the subsidence of land within the District during the preceding year. However, there is another cause of subsidence in our area which causes the activation of surface faults (which can damage roads, houses, and buildings), loss of wetlands and . The nearby hydrograph shows that when a subsidence district was created around 1976 (red line), groundwater levels in the Chicot Aquifer rose substantially. Purpose: To manage groundwater withdrawal and enforce groundwater regulation throughout Harris and Galveston counties, in hopes of preventing the land subsidence that leads to increased flooding. 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.
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