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). This process is crucial to prevent buildings from flooding. 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 . Areas of the nature center show reminiscences of the neighborhood and serve as an important reminder of what subsidence can do. 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. By 1977, the withdrawals had resulted in water-level altitude declines of 350 feet below datum in the These sites are being cooperatively run and operated by the following agencies. (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. The districts vision is to manage the groundwater resources so that, in the near future, the amount of groundwater withdrawn from the Gulf Coast Aquifer is no more than the average annual effective recharge to the Gulf Coast Aquifer System. Up to 2020, regional water-level altitude maps were created by manually interpolating contours of Visit smarteraboutwater.org for water conservation resources to help homeowners, businesses, and the community. Fort Bend Subsidence District 4Rw,De@5hfbHY`b`H=n We I$@g|0 Regular, precise, automated readings are taken of the elevation of the ground at locations throughout the county. Instead of losing a foot every 10 years, many . This is because in addition to sinking land elevations, subsidence contributes to flooding, inundation, or overflow of areas within the district, including rising waters resulting from storms or hurricanes. Click for the Houston-Galveston Region, Texas. Population projections were developed at the census block level for each decade from 2010 to 2070 using the 2010 U.S. Census as a population baseline. ?Jj YV3YIi}SgQ)btH24[0PeU$'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. . historical year or as the difference in water-level altitude at each well for the water-level data Ground-Water Withdrawals and Land-Surface Subsidence in the Houston-Galveston Region, Texas, 1906-80: R-286: 4/1/1984: TWDB numbered report: The Texas Alliance of Groundwater Districts supports Texas groundwater conservation districts and their efforts to conserve, preserve, and protect Texas groundwater. 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. V(&xH:1dxB0"5Cu)edL9x2Z~Q`&1R`oC1NTEGxfP8QMiuy6T8-%HI Y{*,t wBh# HGSD Financial Information including Budgets, Annual Audits, and Financial Reports. To address the issues associated with land-surface subsidence and compaction, the 64th Texas State Get regular updates on Lone Star Groundwater Conservation District. HARRIS GALVESTON SUBSIDENCE DISTRICT TESTIMONY TO COMMITTEE ON COUNTY AFFAIRS 2. The USGS has a long history of working with HGSD and other entities in the Houston region. In addition, they involve local communities by education and outreach programs to underscore the importance of water conservation, such as publishing an interactive viewer with GPS land subsidence monitoring stations (shown below). Harris-Galveston Subsidence District, the Since it is not a GCD, HGSD participates in the activities of GMA 14 as an inter-local participant. 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 . Damages roadways, bridges, building foundations, and other infrastructure. hb```a``c`e`fb@ !+s\ddX{DJG3^pq~HIq @ZHHt40Ttt4D - Legislature authorized the establishment of the Harris-Galveston Subsidence District to regulate and region since the early 1900s. 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.). In the Houston-Galveston region, land subsidence is caused by compaction of fine-grained aquifer sediments (silts and clays) }D?|=X'W|pqe'p]x/ 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. the U.S. Geological Survey Texas Water Science Center Gulf Coast Program collects, processes, and endobj <>stream 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. Harris-Galveston Subsidence District reposted this, Mitigation of human-induced land subsidence starts with the regulation of resource extractions. Interpolated modeled water-level altitude surfaces were only used to compute differences when wells were The purpose of this report is to summarize the results of the Regional Groundwater Update Project (RGUP). Explore Groundwater-Level and Compaction Data in the Chicot, Evangeline and Jasper Aquifers. According to the Harris-Galveston Subsidence District (HGSD), land subsidence is the sinking of the earth's surface due to subsurface (underground) movements. in the Houston-Galveston region to provide for the regulation of groundwater withdrawals in areas within Learn about the history of the Harris-Galveston Subsidence District. 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 District uses exceptional scientific research to ensure the best available technology and approaches are considered with respect to water management and subsidence monitoring. their jurisdiction. 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. 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. Harris County MUD 501 is within the boundaries of the Harris Galveston Subsidence District (the Subsidence District) which regulates groundwater withdrawal. ArcGIS Online Map of Subsidence Rates in Fort Bend and Surrounding Counties, Texas, USA, 2020 Annual Groundwater Report Executive Summary, ArcGIS Online Map of Subsidence Rates in Fort Bend and surrounding Counties, Texas, USA. The District was created to provide for the regulation of groundwater withdrawal. available to store water resulting in the lowering (sinking or settling) of the land-surface. For keyboard navigation: First, use Arrow Keys to navigate up and down the districts. Used by HGSD as guides in the exercise of the powers in the accomplishment of the purposes of Special Districts Code. While some of the duties and goals are similar to those of groundwater conservation districts, Harris-Galveston . 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. 2003: Regulatory areas divided into area A, which includes the Richmond-Rosenberg In the event of an emergency, please dial 9-1-1. water-level altitude data at observation wells in the Houston-Galveston Region. 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. These efforts have identified and . Learn about the District's water conservation programs and tools, Get local watering recommendations based off data from the District's weather stations. %%EOF Water-level altitude is calculated at each well by subtracting the water-level measurement (depth to If the elevation of your house is only 10 feet above sea-level and you lose 10 feet of elevation because of subsidence, your house is now under water. The Harris-Galveston Subsidence District (HGSD) is a special purpose district created by the Texas Legislature in 1975. 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. The University of Houston processes the GPS data. The Subsidence District has adopted regulations requiring reduction of groundwater withdrawals through conversion to alternate source water (e.g., surface water) in certain areas within the Subsidence Districts jurisdiction, including the land within Harris County MUD 501. Subsidence Risk Assessment and Regulatory Considerations for the Brackish Jasper Aquifer. 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. The Harris-Galveston Subsidence District is a special purpose district created by the Texas Legislature in 1975. #hiring #houstonjobs, We are hiring a Water Conservation Program Coordinator to administer the Districts water conservation programs, including the school program, grant program, and outdoor irrigation program. In addition to regulation, the district also conducts research to enhance its understanding of the Upper Gulf Coast aquifer to better manage subsidence. water for municipal supply, commercial and industrial use, and irrigation in the Houston-Galveston 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. Alters the flow of creeks and bayous which may increase the frequency and severity of flooding. 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. Annual Groundwater Report, Cumulative Compaction of Subsurface Sediments, Regional Groundwater Update and more. GULF-2023 Model Development & USGS Partnership. Land subsidence occurs when large amounts of groundwater have been excessively withdrawn from an aquifer. endobj The review of the plan includes the following steps: The initial stakeholder meeting for the joint regulatory plan review will take place May 20, 2020 and future progress meetings will be scheduled periodically throughout the project. resulting in subsidence. water-level altitude and regional water-level change contour map can be found in the individual year 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. Reduces the ability to store water in an aquifer. Establishes policy regarding groundwater regulation withdrawals to control subsidence. Star Groundwater Conservation District, and This model will provide valuable information to inform the regulatory decision-making of the HGSD and FBSD. Chicot-Evangeline (undifferentiated) and Jasper, which are composed of laterally discontinuous deposits
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