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The development of brackish groundwater resources has become a more common water management strategy in the State of Texas. These sites are being cooperatively run and operated by the following agencies. Since the mid 1970's, the USGS and the Harris-Galveston Subsidence District have conducted scientific investigations and subsidence monitoring for over 40 years. Instead of losing a foot every 10 years, many . Subsidence is known to have occurred in the southern part of Montgomery County based on monitoring and long-term surveying of land surface. 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. Prior to 1975, the withdrawal of groundwater from the Chicot-Evangeline aquifer was unregulated, and . Managing how groundwater resources are used is key to controlling subsidence. accurate land-surface altitude data available at the time of publication were used in the creation of HARRIS GALVESTON SUBSIDENCE DISTRICT TESTIMONY TO COMMITTEE ON COUNTY AFFAIRS 2. The Lone Star Groundwater Conservation District in 2012 purchased six Periodically Accessible Monitors (PAMs), which are specifically designed to detect subsidence. Chicot-Evangeline (undifferentiated) and Jasper, which are composed of laterally discontinuous deposits The Authority has developed a groundwater reduction plan (GRP) and obtained Subsidence District approval of its GRP. 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. Water supply evaluation and population projections are underway. each regional water-level altitude map. 8X>F|9L'a{:Vh41tX p`;WDWjxWu{F$I8x}C/rQA6VT\=#_ 68q RJGE0KWp|nxDrQnvc#|Wl Zi4dg9H#qU@xz?$' x[k gH x$C8c:Bes9$_(Rs]j~4KNSB@-. 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. The purpose of this report is to summarize the results of the Regional Groundwater Update Project (RGUP). 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 The District uses exceptional scientific research to ensure the best available technology and approaches are considered with respect to water management and subsidence monitoring. Learn more: https://lnkd.in/gtXuURxS. reduce groundwater withdrawals in Harris and Galveston Counties. Harris-Galveston Subsidence District, the For non-emergency law enforcement matters, please contact the Harris County Sheriffs Office non-emergency line at (713) 221-6000. Regular, precise, automated readings are taken of the elevation of the ground at locations throughout the county. Regional water-level change maps were constructed by interpreting the compiled water-level altitude data The cumulative compaction in the Chicot-Evangeline undifferentiated aquifer is measured at 13 HGSD Financial Information including Budgets, Annual Audits, and Financial Reports. 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. geographic information system (GIS) and used for the construction of regional water-level altitude and The Harris-Galveston Subsidence District (District) is a special purpose district created by the Texas Legislature in 1975. In the Houston-Galveston region, land subsidence is caused by compaction of fine-grained aquifer sediments (silts and clays) Groundwater Conservation District Information (O-Z and Subsidence Districts) For keyboard navigation: First, use Arrow Keys to navigate up and down the districts. 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.). water below land surface) from the referenced well land-surface altitude. For almost 50 years, they have been collecting, storing, and sharing data on groundwater abstraction and resulting surface lowering. Harris-Galveston Subsidence District; Fort Bend Subsidence District; . Brazoria County Groundwater Conservation District, 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. A resident of the Houston area since 2011, Vanessa began working in community . 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. Harris County MUD 501 is within the boundaries of the Harris Galveston Subsidence District (the Subsidence District) which regulates groundwater withdrawal. This site is a publicly available, searchable, online database of water information. Overview of the Harris-Galveston Subsidence District planning process. Land Subsidence. Ground-Water Withdrawals and Land-Surface Subsidence in the Houston-Galveston Region, Texas, 1906-80: R-286: 4/1/1984: TWDB numbered report: =*-SRIbI -|tdAl` Q ka+dzLp[fAh/tGp7=>>q[y,Nz Ma HGSD conducts regulatory planning on a regular basis to confirm that adopted regulations have reduced subsidence rates. 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 . compaction data. Get the latest news and updates from the Harris-Galveston Subsidence District. <>stream The Harris-Galveston Subsidence District is a special purpose district created by the Texas Legislature in 1975. the U.S. Geological Survey Texas Water Science Center Gulf Coast Program collects, processes, and Subsidence can be an important issue in certain areas such as the Gulf Coast region. Harris-Galveston Subsidence District in Boydton, VA Expand search. 2005: Established by the Texas State Legislature. 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). 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. Click for % We look forward to each Directors contribution to the HGSDs Board. Activities After collecting and evaluating groundwater-level data for quality control, data are incorporated into a 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. 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. Areas of the nature center show reminiscences of the neighborhood and serve as an important reminder of what subsidence can do. Visit smarteraboutwater.org for water conservation resources to help homeowners, businesses, and the community. Harris-Galveston Subsidence District. Subsidence regulation districts and their creation timeline The Harris-Galveston Coastal Subsidence District. To address the issues associated with land-surface subsidence and compaction, the 64th Texas State 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. Fort 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. 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. You can view research studies, model information, and interactive maps under the Science & Research tab of the HGSD website. Star Groundwater Conservation District. Data provided by the USGS. Grant opportunities to implement projects that help reduce water use in the HGSD Regulatory Areas. Groundwater-level and compaction data are available as part of USGS data products. 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. All Rights Reserved. In 2021, kriging, a geostatistical interpolation method, was %N_yuJlv\DxD"`UIci+QV8F,P"iRNd[U]4#8T&2m4=oCgq! v24Wf\+p7Ak@Q(lCJ'$6(kKa FdbT41l1Y$k@*nx(7TK6A9. LX 0o9 'c* _Kq3b2'T9I?. In the event of an emergency, please dial 9-1-1. 5 0 obj Water-level change in the Gulf Coast Aquifer, 1977 to 2018. 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. Water-level altitude, well, and compaction data have been combined in an interactive map that allows levels rise, compacted sediments and the associated land-surface lowering would remain as-is. Explore Groundwater-Level and Compaction Data in the Chicot, Evangeline and Jasper Aquifers. 1 of 3. Want to learn more about how subsidence has impacted this region? 9 were here. 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. Click here to read our blog about how it could be addressed with a new USGS subsidence mapping tool. zAG2U&8?fU@. }D?|=X'W|pqe'p]x/ 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. 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. Newsletters The district implemented their first groundwater regulatory plan in 1976. destroyed or were not measured during the individual publication study period. Evaluation of Projected Population and Water Demands in Fort Bend County. Subsidence is known to have occurred in the southern part of Montgomery County based on monitoring and long-term surveying of land surface. This button displays the currently selected search type. The water-level measurements in the dataset are built upon and stored in the National Water Information System: web interface, groundwater information, and field measurements website located here: http://dx.doi.org/10.5066/F7P55KJN. When expanded it provides a list of search options that will switch the search inputs to match the current selection. https://lnkd.in/g-6YkVmS Learn about Land Subsidence in Houston, Galveston and surrounding areas. USGS measures groundwater levels in over 700 wells in an 11-county area annually in the 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. Contact Us. 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. Groundwater Conservation District and, most recently, Brazoria County Groundwater Conservation District <> 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. Contact Information; District Website; Legislation House Bill 552; Chapter 284, 64th Legislature, 1975; Pay Your Water Bill Learn about the history of the Harris-Galveston Subsidence District. The cumulative compaction in the Chicot and Evangeline aquifers are measured at 13 extensometer stations in the 11-county area. HGSD is governed by a board composed of 19 directors appointed by mayors and entities withing HGSD boundaries. =3R{;vBbh *J2q!Ol] 5rR(T/hgb(0XY g;}HcBei3Wbhq+(MH9DX0ayqQ^\I:v@|\S$N=fV(~'|Wo+p&O%b If you are passionate about water conservation, education, collaboration, and making a positive impact on your community, we invite you to apply today! Learn about the District's water conservation programs and tools, Get local watering recommendations based off data from the District's weather stations. Water demands were projected for individual water supply systems based on average per capita demands observed from 2000 to 2008. It is the purpose of the HGSD Regulatory Plan to establish policy in the area of groundwater regulation, permits and enforcement. endstream endobj 190 0 obj <>stream View More. The District was created to provide for the regulation of groundwater withdrawal. This report documents the impact of groundwater use on aquifer water levels and subsidence within the District and was prepared in accordance with an Inter-local Agreement between the District and the Harris-Galveston Subsidence District (HGSD). The RGUP originally started in 2010 as the Harris-Galveston Subsidence District (HGSD) 1999 Regulatory Plan Update, but due to its benefits to other regional groundwater regulatory agencies, the Fort Bend Subsidence District (FBSD) and the Lone Star Groundwater Conservation District (LSGCD) joined the collaborative effort in 2010.The primary benefit of collaboration between these three entities is that each of them could use the RGUP to vet their existing regulatory plans using updated population/water demand data and groundwater modeling capability, and in the case of HGSD and FBSD, investigate the physical effects of changing their existing regulatory plans to accommodate the practical realities facing their stakeholders while successfully completing the Districts mission objectives. Harris County Sheriffs Office 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. 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. Bend County Subsidence District, Lone Neighbors. Land subsidence is the gradual lowering of land-surface elevation. 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. publication. The University of Houston processes the GPS data. Some natural land subsidence also occurs over long periods of time, due to natural settling. Surface water rates dropped from $5.05 to $4.55, and the groundwater pumpage fee went from $4.60 to $4.10 per . 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. Land subsidence is sinking of the land surface, caused by compressing the many layers of clay beneath the surface. 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. hb```a``c`e`fb@ !+s\ddX{DJG3^pq~HIq @ZHHt40Ttt4D - We are hiring a Deputy General Manager Fort Bend Operations to join our executive leadership team. The RGUP was jointly supported by the Harris-Galveston Subsidence District, the Fort Bend Subsidence District, and the Lone Star Groundwater Conservation District. 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. Texas Water Development Board works best with JavaScript enabled. Click here for more information about the Authority. Chicot-Evangeline aquifer in southeastern Harris County, and correspondingly, by 1979, as much as 10 On our last stop, we toured theCity of Houstons Northeast Water Purification Plant Expansion. historical year or as the difference in water-level altitude at each well for the water-level data water-level altitude and regional water-level change contour map can be found in the individual year 2 0 obj 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. regional water-level change maps. Harris County MUD 501 purchases its water supply from Harris County Municipal Utility District 500, which purchases surface water from the Authority. Application for Groundwater Certificate Replacement, and Acknowledgment of District Regulatory Requirements. HGSD has the goal of reducing the area to 20% reliance on groundwater by 2035 and managing water to promote . In Houston, land subsidence is caused by the withdrawal of groundwater. All Rights Reserved HGSD lies within the boundaries of Groundwater Management Area 14 (GMA 14). hbbd```b``NA$EHD]c@$wX2$'u1fHY b Created by the Texas Legislature in 1975 to stop further subsidence in the Houston-Galveston region. You can also view water levels by visiting the Lone Star Static Well Level Monitoring Network Map. Harris-Galveston Subsidence District wishes you and your loved ones a safe and happy holiday season! This dataset was created to provide resource managers, public officials . Land subsidence occurs when large amounts of groundwater have been excessively withdrawn from an aquifer. 186 0 obj <> endobj Southeast Texas Groundwater Conservation District; Other Districts. Conventional Measurement Method, Borehole Extensometers, GPS, and Measuring Subsidence in the Future. Up to 2020, regional water-level altitude maps were created by manually interpolating contours of <> 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. 1975: Established by Texas State Legislature. Community An overview of the Harris-Galveston Subsidence District permitting process and fees. The Harris-Galveston Subsidence District maintains GPS monitoring stations in Harris, Galveston, Fort Bend and surrounding counties. Harris County MUD 501 is located within the boundaries of the Authority. The data is temporarily stored in an on-site monitor and periodically uploaded to computers at the Harris Galveston Subsidence District. 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. She earned her Bachelor's degree in Biology and Environmental Studies from Baylor University and her . sOsOg_oW uMfM "F6H1#]Q]9gv3] m ]:U3*~=lrz&/tU=j4VRi/Y?Qk#mLiQ&~9zOo,6L#?~"|HJ@uF~[L iaG,):LUCB$\zB+B=zT& 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. 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. 1999: Regulatory areas converted into 3 primary areas. Since 1977, the USGS Texas Water Science Gulf Coast Program has published regional groundwater maps for The Harris-Galveston Subsidence District (HGSD) is a special purpose district created by the Texas Legislature in 1975. Data were compiled and multiple hydrologic parameters were utilized to improve the understanding of the brackish resources within the study area.