All Rights Reserved below the land surface due to groundwater withdrawals. If you are a leader with a passion for executing projects that improve our local communities, check out this opportunity! Harris County MUD 501 purchases its water supply from Harris County Municipal Utility District 500, which purchases surface water from the Authority. 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 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. Star Groundwater Conservation District. 1045, 1989 Tex. Prior to 1975, the withdrawal of groundwater from the Chicot-Evangeline aquifer was unregulated, and 0 1 of 11. 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. 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. % Southeast Texas Groundwater Conservation District; Other Districts. Now hiring a Deputy General Manager for Fort Bend Operations. HARRIS-GALVESTON SUBSIDENCE DISTRICT SUBCHAPTER A. This model will provide valuable information to inform the regulatory decision-making of the HGSD and FBSD. 229 0 obj <>stream endstream endobj 187 0 obj <>/Metadata 33 0 R/OCProperties<>/OCGs[219 0 R]>>/Outlines 37 0 R/PageLayout/SinglePage/Pages 184 0 R/StructTreeRoot 50 0 R/Type/Catalog>> endobj 188 0 obj <>/ExtGState<>/Font<>/Properties<>/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 189 0 obj <>stream v24Wf\+p7Ak@Q(lCJ'$6(kKa FdbT41l1Y$k@*nx(7TK6A9. LX 0o9 'c* _Kq3b2'T9I?. These data were used to develop a groundwater flow model capable of simulating subsidence to inform the subsidence risk of brackish development of the Jasper aquifer. Subsidence Risk Assessment and Regulatory Considerations for the Brackish Jasper Aquifer. To address the issues associated with land-surface subsidence and compaction, the 64th Texas State Water-level altitude, well, and compaction data have been combined in an interactive map that allows Information about the Management team at the Harris-Galveston Subsidence District. Creation year: 2001 (77th Texas Legislature). Regular, precise, automated readings are taken of the elevation of the ground at locations throughout the county. Click here to view information and publications from USGS about groundwater and subsidence on the Texas Gulf Coast. 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. Community 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. 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. 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. Removing water from fine-grained aquifer sediments compresses the aquifer leaving less pore space These units operate in conjunction with the two that have been monitoring land levels in Montgomery County for more than 10 years. 1999: Regulatory areas converted into 3 primary areas. accurate land-surface altitude data available at the time of publication were used in the creation of 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. 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. Most compaction that occurs as a result of groundwater withdrawals is irreversible; even if groundwater o35d8\,=R/.Y2xTE@;jj?4/gh?D$U2;MrpF&tMF6h-|l-:nSzC~ ER5knSP" zXyY/mY|{mm}x"S8K~"UILrD> 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. HGSD is divided into three regulatory areas stretching from High Island and Galveston upwards to Hempstead, TX. 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 . 1985: Divided into 8 regulatory areas by amount of groundwater reduction needed. GULF-2023 Model Development & USGS Partnership. The U.S. Geological Survey, in cooperation with the Harris Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, Brazoria County Groundwater Conservation District, and Lone Star Groundwater Conservation District, has produced this dataset of water-level changes and approximate water-level altitudes in the Chicot, Evangeline, and Jasper aquifers in the Houston-Galveston region, Texas. Houston-Galveston area in order to develop a regional depiction of groundwater levels. A report by: David B. Zilkoski, Lucy W. Hall, Gilbert J. Mitchell, Vasanthi Kammula, Ajit Singh, William M. Chrismer, and Ronald J. publication. 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 . Subsequent to establishing the Harris-Galveston Subsidence District, the Texas State Legislature Numerous subsurface faults have been documented beneath the Houston metropolitan area at depths of 3,200 to 13,000 feet. To learn how to submit your report online, check out our instructional video! 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. For the Jasper aquifer, primarily used in Montgomery County, water levels have continued to decline with development in the area., Click here to read our blog about how it could be addressed with a new USGS subsidence mapping tool, first published water-level altitude maps, The Harris-Galveston Coastal Subsidence District, The Lone Star Groundwater Conservation District, The Brazoria County Groundwater Conservation District, Its time for a water session at the Legislature, Texas is Losing an Average of Over 50 Gallons of Water Per Connection Every Day, Key Solutions to Texas Water Woes Are Simpler Than We Think. 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. The Harris-Galveston Subsidence District (HGSD) is a special purpose district created by the Texas Legislature in 1975. Get regular updates on Lone Star Groundwater Conservation District. 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. Water-level altitude is calculated at each well by subtracting the water-level measurement (depth to This district was created because area . The cumulative compaction in the Chicot and Evangeline aquifers are measured at 13 extensometer stations in the 11-county area. 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. The cumulative compaction in the Chicot-Evangeline undifferentiated aquifer is measured at 13 Click here to read our blog about how it could be addressed with a new USGS subsidence mapping tool. In the event of an emergency, please dial 9-1-1. HGSD has the goal of reducing the area to 20% reliance on groundwater by 2035 and managing water to promote . UNESCO Land Subsidence International Initiative. Groundwater Conservation District and, most recently, Brazoria County Groundwater Conservation District water below land surface) from the referenced well land-surface altitude. 1 0 obj 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. 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. 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 . Creation year: 1975 (64th Texas Legislature). `c331vf2~+kRbs "cX1K3H3200 iy@Se! g= Water-level change in the Gulf Coast Aquifer, 1977 to 2018. Get the latest news and updates from the Harris-Galveston Subsidence District. The primary aquifers in the Gulf Coast aquifer system in the Houston-Galveston region are the For more information, or to learn how to submit your report online, visit: https://lnkd.in/gSz5XemV. Contact information for the Harris-Galveston Subsidence District. 2001: Established by the Texas State Legislature. =*-SRIbI -|tdAl` Q ka+dzLp[fAh/tGp7=>>q[y,Nz Ma For almost 50 years, they have been collecting, storing, and sharing data on groundwater abstraction and resulting surface lowering. The Lone Star Groundwater Conservation District in 2012 purchased six Periodically Accessible Monitors (PAMs), which are specifically designed to detect subsidence.