These sites are being cooperatively run and operated by the following agencies. Water-level altitude contours, wells, and compaction data have been combined in an interactive map that allows users to view annual water-level altitudes from 1977 through the present, water-level changes over time, and historical time series of compaction data. The University of Houston processes the GPS data. This is accomplished through the careful regulation of groundwater withdrawals, working in collaboration with surface water suppliers. hbbd```b``NA$EHD]c@$wX2$'u1fHY b The new intake pump station will draw water from Lake Houston and, upon completion of the water treatment facility, will be able to provide 320 million gallons of treated water per day. Click here to view information and publications from USGS about groundwater and subsidence on the Texas Gulf Coast. The Harris-Galveston Subsidence District is a special purpose district created by the Texas Legislature in 1975. 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. reduce groundwater withdrawals in Harris and Galveston Counties. as the difference in water-level altitude at each well for the water-level data collection year and the This button displays the currently selected search type. An overview of the Harris-Galveston Subsidence District permitting process and fees. In addition HGSD provides water conservation, education, and outreach programs to . A report by: David B. Zilkoski, Lucy W. Hall, Gilbert J. Mitchell, Vasanthi Kammula, Ajit Singh, William M. Chrismer, and Ronald J. 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). The district implemented their first groundwater regulatory plan in 1976. Water-level altitude is calculated at each well by subtracting the water-level measurement (depth to 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. 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 . available to store water resulting in the lowering (sinking or settling) of the land-surface. 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. 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. This dataset shows current-year (2015-2016) water-level changes for each aquifer, 5-year (2011-2016) water-level changes for each aquifer, long-term (1990-2016 and 1977-2016) water-level changes for the Chicot and Evangeline aquifers, and long-term (2000-2016) water-level changes for the Jasper aquifer. 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. Brazoria County Groundwater Conservation District, Lone Star Groundwater Conservation District. From USGS well monitoring over decades they are able to show that once subsidence districts are created, groundwater levels rise significantly, thereby decreasing subsidence issues in their districts. Groundwater Conservation District and, most recently, Brazoria County Groundwater Conservation District o35d8\,=R/.Y2xTE@;jj?4/gh?D$U2;MrpF&tMF6h-|l-:nSzC~ ER5knSP" zXyY/mY|{mm}x"S8K~"UILrD> 218 0 obj <>/Filter/FlateDecode/ID[<47E07B46D706934486CB2062ED92DA88><05048E564C3EFD429B1933026D915C3D>]/Index[186 44]/Info 185 0 R/Length 144/Prev 850166/Root 187 0 R/Size 230/Type/XRef/W[1 3 1]>>stream Removing water from fine-grained aquifer sediments compresses the aquifer leaving less pore space Gen. Laws 4251). larger image. in the Houston-Galveston region to provide for the regulation of groundwater withdrawals in areas within In addition HGSD provides water conservation, education, and outreach programs to underscore the importance of water conservation in the community. The RGUP was jointly supported by the Harris-Galveston Subsidence District, the Fort Bend Subsidence District, and the Lone Star Groundwater Conservation District. Water Conservation Program Coordinator, 2022 Annual Groundwater Report Public Hearing Notice, https://ascelibrary.org/doi/10.1061/%28ASCE%29SU.1943-5428.0000399. City Removing water from fine-grained aquifer sediments compresses the aquifer leaving less pore space available to store water resulting . V(&xH:1dxB0"5Cu)edL9x2Z~Q`&1R`oC1NTEGxfP8QMiuy6T8-%HI Y{*,t wBh# Learn about the District's water conservation programs and tools, Get local watering recommendations based off data from the District's weather stations. Learn more: https://lnkd.in/gtXuURxS. Harris County MUD 501 is located within the boundaries of the Authority. 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. 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. 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. Grant opportunities to implement projects that help reduce water use in the HGSD Regulatory Areas. This dataset was created to provide resource managers, public officials . 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. J.M:xo[q]omJdI Wf@M|$ot-MB@V5J SDh!!FwTtd\#\v?T{DJo"DfTFaF.%I\J'3@$;k 8f We are hiring a Deputy General Manager Fort Bend Operations to join our executive leadership team. 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. Subsidence is known to have occurred in the southern part of Montgomery County based on monitoring and long-term surveying of land surface. Contact Information; District Website; Legislation House Bill 552; Chapter 284, 64th Legislature, 1975; Southeast Texas Groundwater Conservation District; Other Districts. In cooperation with Purpose: To maintain the quality and availability of Brazoria Countys groundwater resources for current users and future generations. Since 1836, groundwater withdrawals have caused about 3,200 square miles of the Houston-Galveston area to subside (or sink) more than a foot, with some areas subsiding as much as 12 to 13 feet. 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. compaction data. To learn how to submit your report online, check out our instructional video! 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. Legislature authorized the establishment of the Harris-Galveston Subsidence District to regulate and =3R{;vBbh *J2q!Ol] 5rR(T/hgb(0XY g;}HcBei3Wbhq+(MH9DX0ayqQ^\I:v@|\S$N=fV(~'|Wo+p&O%b Ground-Water Withdrawals and Land-Surface Subsidence in the Houston-Galveston Region, Texas, 1906-80: R-286: 4/1/1984: TWDB numbered report: Subsidence regulation districts and their creation timeline The Harris-Galveston Coastal Subsidence District. For more information, or to learn how to submit your report online, visit: https://lnkd.in/gSz5XemV. The public hearing fulfills the requirements of the Districts enabling legislation, which states that the Board of Directors shall hold a public hearing to take testimony concerning the effects of groundwater withdrawals on the subsidence of land within the District during the preceding year. The Lone Star GCD has studied the Gulf Coast Aquifer for a decade and confirmed the reports of many local water suppliers, which state that water levels in the countys aquifers have declined at an alarming rate as a result of deficit pumping. The RGUP was jointly supported by the Harris-Galveston Subsidence District, the Fort Bend Subsidence District, and the Lone Star Groundwater Conservation District. The goal was to keep the region elevated by developing ways to reduce groundwater consumption.. established the Fort Bend Subsidence District and two groundwater conservation districts: Lone Star water-level altitude data at observation wells in the Houston-Galveston Region. endobj Fort Bend Subsidence District ?Jj YV3YIi}SgQ)btH24[0PeU$'r-1[hBy"&aH@"F0Z1&N'f`^~D-ocr@:A /TG}]u9b l. Managing how groundwater resources are used is key to controlling subsidence. Vision, Mission and Stategic Goals of the Harris-Galveston Subsidence District. endstream endobj 191 0 obj <>stream USGS measures groundwater levels in over 700 wells in an 11-county area annually in the 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. . Contact information for the Harris-Galveston Subsidence District. This district was created because area . Most compaction that occurs as a result of groundwater withdrawals is irreversible; even if groundwater 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. Harris County MUD 501 is within the boundaries of the Harris Galveston Subsidence District (the Subsidence District) which regulates groundwater withdrawal. Harris-Galveston Subsidence District; Fort Bend Subsidence District; . . 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. For detailed information on the processing methodology, please refer to https://ascelibrary.org/doi/10.1061/%28ASCE%29SU.1943-5428.0000399. UNESCO Land Subsidence International Initiative. =*-SRIbI -|tdAl` Q ka+dzLp[fAh/tGp7=>>q[y,Nz Ma 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. Used by HGSD as guides in the exercise of the powers in the accomplishment of the purposes of Special Districts Code. Then, use either Enter or Space key to open the selected district. Purpose: To manage groundwater withdrawal and enforce groundwater regulation within the district to prevent subsidence. Created by the Texas Legislature in 1975 to stop further subsidence in the Houston-Galveston region. Land subsidence occurs when large amounts of groundwater have been excessively withdrawn from an aquifer. On the first stop, we visited the Texas City Rainwater Pump Station, where Texas Citys Emergency Management team takes runoff rainwater from ditches in the area and pumps it into Moses Lake. Since it is not a GCD, HGSD participates in the activities of GMA 14 as an inter-local participant. Texas Water Development Board works best with JavaScript enabled. Next, we traveled to the infamous Brownwood Subdivision, which was abandoned due to substantial subsidence in the 1980s. You can also view water levels by visiting the Lone Star Static Well Level Monitoring Network Map. feet of subsidence had occurred in the Houston-Galveston region. Alternative water sources, like treated surface water, prevents excessive groundwater pumping, thereby minimizing subsidence. In Houston, land subsidence is caused by the withdrawal of groundwater. The data is temporarily stored in an on-site monitor and periodically uploaded to computers at the Harris Galveston Subsidence District. 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. Creation year: 1975 (64th Texas Legislature). Since 1990, the Fort Bend Subsidence District has regulated groundwater withdrawals and monitored subsidence in Fort Bend county. The Lone Star Groundwater Conservation District in 2012 purchased six Periodically Accessible Monitors (PAMs), which are specifically designed to detect subsidence. Establishes policy regarding groundwater regulation withdrawals to control subsidence. Harris-Galveston Subsidence District, the Subsidence is known to have occurred in the southern part of Montgomery County based on monitoring and long-term surveying of land surface. Creation year: 1975 (64th Texas Legislature). Bend County Subsidence District, Harris County Sheriffs Office HGSD works closely with State and Federal agencies to foster collaboration and improve governmental efficiency. HARRIS GALVESTON SUBSIDENCE DISTRICT TESTIMONY TO COMMITTEE ON COUNTY AFFAIRS 2. 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 The Harris-Galveston Subsidence District (HGSD) is a special purpose district created by the Texas Legislature in 1975. 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. 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. The cumulative compaction in the Chicot-Evangeline undifferentiated aquifer is measured at 13 Lone Conventional Measurement Method, Borehole Extensometers, GPS, and Measuring Subsidence in the Future. Subsidence Risk Assessment and Regulatory Considerations for the Brackish Jasper Aquifer. Based on this analysis, recommendations have been developed to refine the methodology used in the next regional update project to further improve the next iteration of the regulatory plan. 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. To address the issues associated with land-surface subsidence and compaction, the 64th Texas State After collecting and evaluating groundwater-level data for quality control, data are incorporated into a If you are passionate about water conservation, education, collaboration, and making a positive impact on your community, we invite you to apply today! HGSD has the goal of reducing the area to 20% reliance on groundwater by 2035 and managing water to promote . The Texas Alliance of Groundwater Districts supports Texas groundwater conservation districts and their efforts to conserve, preserve, and protect Texas groundwater. Data were compiled and multiple hydrologic parameters were utilized to improve the understanding of the brackish resources within the study area. 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. 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. When we pump large amounts of water from the aquifers beneath us, we pull water out of the many layers of clay, which causes the clay to compact, lowering the elevation of the land above. 1 of 11. Up to 2020, regional water-level altitude maps were created by manually interpolating contours of For non-emergency law enforcement matters, please contact the Harris County Sheriffs Office non-emergency line at (713) 221-6000. The accuracy of the referenced well land-surface altitude data has improved through time and the most Water demands were projected for individual water supply systems based on average per capita demands observed from 2000 to 2008. Data provided by the USGS. Richmond, TX 77469 `c331vf2~+kRbs "cX1K3H3200 iy@Se! g= One of the primary concerns of subsidence in the coastal regions is flooding due to storm surges associated with hurricanes, where permanent seawater inundation and periodic storm water surge can dramatically impact property. Register a well, permit applications, renewals, and amendments. Further information detailing the data processing and map creation for each published regional adopted as an effective alternative to manual contour interpolation. Damages roadways, bridges, building foundations, and other infrastructure. 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. Additionally, the US Geological Survey (USGS) has begun work on the GULF-2023 model, with an anticipated completion date in the fall of 2021. Working with surface water suppliers the HGSD controls subsidence by managing the use of groundwater resources in Harris and Galveston Counties. water levels in the aquifer were declining with associated depressuring, dewatering, and compaction 2005: Established by the Texas State Legislature. Purpose: To preserve, conserve and protect Montgomery Countys groundwater supplies. Prior to 1975, the withdrawal of groundwater from the Chicot-Evangeline aquifer was unregulated, and Pay Your Water Bill Information about the report can be found at the Harris-Galveston Subsidence District website. Application for Groundwater Certificate Replacement, and Acknowledgment of District Regulatory Requirements. 229 0 obj <>stream The Harris-Galveston Subsidence District maintains GPS monitoring stations in Harris, Galveston, Fort Bend and surrounding counties. 301 Jackson Street, Suite 639 %PDF-1.5 % Harris-Galveston Subsidence District reposted this, Mitigation of human-induced land subsidence starts with the regulation of resource extractions. extensometer stations in the 11-county area. Since 1977, the USGS Texas Water Science Gulf Coast Program has published regional groundwater maps for %%EOF Areas of the nature center show reminiscences of the neighborhood and serve as an important reminder of what subsidence can do. The development of brackish groundwater resources has become a more common water management strategy in the State of Texas. Some natural land subsidence also occurs over long periods of time, due to natural settling. Harris-Galveston Subsidence District in Boydton, VA Expand search. 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. The District was created to provide for the regulation of groundwater withdrawal. 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 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. 0 Annual Pumpage Reports are due by January 31, 2023. 186 0 obj <> endobj resulting in subsidence. https://lnkd.in/gZKAs__D. 1045, 1989 Tex. This process is crucial to prevent buildings from flooding. Creation year: 2003 (approved by Brazoria County voters in 2005). 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. HGSD is divided into three regulatory areas stretching from High Island and Galveston upwards to Hempstead, TX. The nearby hydrograph shows that when a subsidence district was created around 1976 (red line), groundwater levels in the Chicot Aquifer rose substantially. 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. hmo0?:;T!AR~p!A+~g`e]rw>F "1T"@0D$L$!A!JyXUJsm\Ouu~o:p11G5r[U=w/ QdQUq] of gravel, sand, silt, and clay. HGSD conducts regulatory planning on a regular basis to confirm that adopted regulations have reduced subsidence rates. She joins Harris County from the Harris-Galveston Subsidence District, where she has served as Deputy General Manager for the past 3 years and oversaw the District's Regulatory Planning, Scientific Research, and Water Conservation Programs. The District uses exceptional scientific research to ensure the best available technology and approaches are considered with respect to water management and subsidence monitoring. 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. Star Groundwater Conservation District. <> 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. Learn about the history of the Harris-Galveston Subsidence District. Harris County MUD 501 purchases its water supply from Harris County Municipal Utility District 500, which purchases surface water from the Authority. Get the latest news and updates from the Harris-Galveston Subsidence District. You can view research studies, model information, and interactive maps under the Science & Research tab of the HGSD website. December 1, 2020. The District Science and Research Plan represents the strategic direction for science and research conducted or supported by the Fort Bend Subsidence District (FBSD) and, as such, is an essential component of the Districts regulatory planning process. In collaboration with Galveston Bay Foundation and Texas A&M Agrilife Extension Service, HGSD . Harris-Galveston Subsidence District Joins the Winners' Circle.
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