Land subsidence occurs when large amounts of groundwater have been excessively withdrawn from an aquifer. 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 Since the mid 1970s, the USGS and the Harris-Galveston Subsidence District have conducted scientific investigations and subsidence monitoring for over 40 years. 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. Information about the report can be found at the Harris-Galveston Subsidence District website. They have successfully slowed-down land subsidence, decreased flood risks, and overall maintained the viability of the area. 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. 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. reduce groundwater withdrawals in Harris and Galveston Counties. 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. While some areas in Houston have significantly reduced their groundwater pumping (particularly with the creation of subsidence and groundwater districts, whose purpose is to regulate groundwater pumping), subsidence still remains a threat for the region. 0 In cooperation with water-level altitude and regional water-level change contour map can be found in the individual year The network, initiated in 1994, currently extends across the Houston-Galveston region, across Harris, Fort Bend and surrounding counties, in an effort to represent the breadth and scope of subsidence in the region. Contact Information; District Website; Legislation House Bill 552; Chapter 284, 64th Legislature, 1975; Annual Groundwater Report, Cumulative Compaction of Subsurface Sediments, Regional Groundwater Update and more. Check out this great opportunity to learn about groundwater and subsidence at HMNS - Sugar Land's latest exhibit open now until May 14, 2023! (3) "District" means the Harris-Galveston Subsidence District. https://lnkd.in/g-6YkVmS 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 HGSD has the goal of reducing the area to 20% reliance on groundwater by 2035 and managing water to promote . 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 Harris County MUD 501 is located within the boundaries of the Authority. Click here to read our blog about how it could be addressed with a new USGS subsidence mapping tool. HGSD works closely with State and Federal agencies to foster collaboration and improve governmental efficiency. feet of subsidence had occurred in the Houston-Galveston region. This model will provide valuable information to inform the regulatory decision-making of the HGSD and FBSD. Reduces the ability to store water in an aquifer. 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. December 1, 2020. 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. The nearby hydrograph shows that when a subsidence district was created around 1976 (red line), groundwater levels in the Chicot Aquifer rose substantially. 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. 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. Harris-Galveston Subsidence District . Elections 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). %PDF-1.3 o35d8\,=R/.Y2xTE@;jj?4/gh?D$U2;MrpF&tMF6h-|l-:nSzC~ ER5knSP" zXyY/mY|{mm}x"S8K~"UILrD> levels rise, compacted sediments and the associated land-surface lowering would remain as-is. This dataset was created to provide resource managers, public officials . )|#.`/D;WcM0z,B] mXU+^yZ!9K254cC.(WjoFgpK1EpvgoV "H7 OKQ:kHLa`Z=Hmm'rh`:Qfb5.!H{ 6+sBQ 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. 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. Chicot-Evangeline (undifferentiated) and Jasper, which are composed of laterally discontinuous deposits USGS measures groundwater levels in over 700 wells in an 11-county area annually in the resulting in subsidence. of gravel, sand, silt, and clay. 2001: Established by the Texas State Legislature. Trash Brazoria County Groundwater Conservation District . For almost 50 years, they have been collecting, storing, and sharing data on groundwater abstraction and resulting surface lowering. Creation year: 1975 (64th Texas Legislature). 2 0 obj 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 District uses exceptional scientific research to ensure the best available technology and approaches are considered with respect to water management and subsidence monitoring. 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. Water supply evaluation and population projections are underway. Areas of the nature center show reminiscences of the neighborhood and serve as an important reminder of what subsidence can do. USGS measures groundwater levels in over 700 wells in an 11-county area annually in the Houston-Galveston area in order to develop a regional depiction of groundwater levels. 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. their jurisdiction. Additionally, the US Geological Survey (USGS) has begun work on the GULF-2023 model, with an anticipated completion date in the fall of 2021. The Harris-Galveston Subsidence District, created in 1975, was the first of these districts. 1045, 1989 Tex. Regional water-level change maps were constructed by interpreting the compiled water-level altitude data 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. Further information detailing the data processing and map creation for each published regional (3-a) "Florist item" means a cut flower, potted plant, blooming plant, inside foliage plant, bedding plant, corsage flower, cut foliage, floral decoration, or live decorative material. Explore Groundwater-Level and Compaction Data in the Chicot, Evangeline and Jasper Aquifers. In this chapter: (1)AA"Agricultural crop": (A)AAmeans food or fiber commodities that are grown for resale or commercial purposes and that are to be used for food, clothing, or animal feed; and ?Jj YV3YIi}SgQ)btH24[0PeU$'r-1[hBy"&aH@"F0Z1&N'f`^~D-ocr@:A /TG}]u9b l. Lone Star GCD is working with the Subsidence District to make the newer stations available online. established the Fort Bend Subsidence District and two groundwater conservation districts: Lone Star Subsidence is known to have occurred in the southern part of Montgomery County based on monitoring and long-term surveying of land surface. It is the purpose of the HGSD Regulatory Plan to establish policy in the area of groundwater regulation, permits and enforcement. larger image. The Authority has developed a groundwater reduction plan (GRP) and obtained Subsidence District approval of its GRP. 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. Interpolated modeled water-level altitude surfaces were only used to compute differences when wells were 1975: Established by Texas State Legislature. According to the Harris-Galveston Subsidence District (HGSD), land subsidence is the sinking of the earth's surface due to subsurface (underground) movements. https://lnkd.in/gZKAs__D. Instead of losing a foot every 10 years, many . . Removing water from fine-grained aquifer sediments compresses the aquifer leaving less pore space 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. In Houston, land subsidence is caused by the withdrawal of groundwater. The primary aquifers in the Gulf Coast aquifer system in the Houston-Galveston region are the #Hiring A resident of the Houston area since 2011, Vanessa began working in community . 1976: First regulatory area (Area of Concentrated Emphasis, ACE) established. water levels in the aquifer were declining with associated depressuring, dewatering, and compaction 301 Jackson Street, Suite 639 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. sOsOg_oW uMfM "F6H1#]Q]9gv3] m ]:U3*~=lrz&/tU=j4VRi/Y?Qk#mLiQ&~9zOo,6L#?~"|HJ@uF~[L iaG,):LUCB$\zB+B=zT& Creation year: 2001 (77th Texas Legislature). 2005: Established by the Texas State Legislature. % 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.

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