harris galveston subsidence district
2019 Annual Groundwater Report Appendix A, 2019 Annual Groundwater Report Appendix B, 2019 Annual Groundwater Report Appendix C. Pursuant to Fort Bend Subsidence District (the District or FBSD) Resolution No. Southeast Texas Groundwater Conservation District; Other Districts. (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. Created by the Texas Legislature in 1975 to stop further subsidence in the Houston-Galveston region. 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. Contact Us. These efforts have identified and . %PDF-1.5 % This model will provide valuable information to inform the regulatory decision-making of the HGSD and FBSD. 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. 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. o35d8\,=R/.Y2xTE@;jj?4/gh?D$U2;MrpF&tMF6h-|l-:nSzC~ ER5knSP" zXyY/mY|{mm}x"S8K~"UILrD> 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. Data were compiled and multiple hydrologic parameters were utilized to improve the understanding of the brackish resources within the study area. 2005: Established by the Texas State Legislature. 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. Fort Since the creation of the GMA, HGSD has provided information, research, and financial support to the GMA process. 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. Water demands were projected for individual water supply systems based on average per capita demands observed from 2000 to 2008. 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.). 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. Bend County Subsidence District, Since the mid 1970s, the USGS and the Harris-Galveston Subsidence District have conducted scientific investigations and subsidence monitoring for over 40 years. HVMs9W(GEU nQ,bb]4vb3Z_lW=zl%{O;\o%{ebEw the Houston-Galveston Region, Texas. accurate land-surface altitude data available at the time of publication were used in the creation of The Authoritys GRP sets forth the Authoritys plan to comply with the Subsidence District regulations, construct surface water facilities, and convert users from groundwater to alternate source water (e.g., surface water). Search form lists all water wells with a HGSD permit in a given area. 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. . Lone Star Groundwater Conservation District, Brazoria County Groundwater Conservation District, Fort %N_yuJlv\DxD"`UIci+QV8F,P"iRNd[U]4#8T&2m4=oCgq! In collaboration with Galveston Bay Foundation and Texas A&M Agrilife Extension Service, HGSD . The accuracy of the referenced well land-surface altitude data has improved through time and the most 1 of 11. Grant opportunities to implement projects that help reduce water use in the HGSD Regulatory Areas. 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). 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 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. 2003: Regulatory areas divided into area A, which includes the Richmond-Rosenberg #Hiring City ?Jj YV3YIi}SgQ)btH24[0PeU$'r-1[hBy"&aH@"F0Z1&N'f`^~D-ocr@:A /TG}]u9b l. Fort Bend Subsidence District hmo0?:;T!AR~p!A+~g`e]rw>F "1T"@0D$L$!A!JyXUJsm\Ouu~o:p11G5r[U=w/ QdQUq] In cooperation with HGSD is governed by a board composed of 19 directors appointed by mayors and entities withing HGSD boundaries. Land subsidence is the gradual lowering of land-surface elevation. 1976: First regulatory area (Area of Concentrated Emphasis, ACE) established. Used by HGSD as guides in the exercise of the powers in the accomplishment of the purposes of Special Districts Code. People who live in the lower lying coastal areas (i.e., lower elevations and flatter topography) have much more reason to be concerned with subsidence than those who reside further inland in areas of higher elevations with more topographic relief. water-level altitude data at observation wells in the Houston-Galveston Region. hbbd```b``NA$EHD]c@$wX2$'u1fHY b In addition HGSD provides water conservation, education, and outreach programs to . University of Houston . Learn about Land Subsidence in Houston, Galveston and surrounding areas. 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. <> zAG2U&8?fU@. Purpose: To maintain the quality and availability of Brazoria Countys groundwater resources for current users and future generations. This process is crucial to prevent buildings from flooding. <> 1992: Regulatory areas redivided into 7 areas. 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. The GULF-2023 model is a new $588,000 endeavor jointly funded by the HGSD and FBSD, in cooperation with USGS. GALVESTON COUNTY CHAMBERS COUNTY LIBERTY COUNTY WALLER COUNTY 45 249 59 U.S. Department of the Interior U.S. Geological Survey Pamphlet to accompany Scientific Investigations Map 3365 Prepared in cooperation with the Harris-Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, Lone Star Groundwater Conservation District . Ground-Water Withdrawals and Land-Surface Subsidence in the Houston-Galveston Region, Texas, 1906-80: R-286: 4/1/1984: TWDB numbered report: feet of subsidence had occurred in the Houston-Galveston region. In 2021, kriging, a geostatistical interpolation method, was Learn about the history of the Harris-Galveston Subsidence District. Now on its fifth iteration since 1976, the plan describes the different regulatory areas throughout the district, defines groundwater withdrawal limits for each area, and provides guidelines for permitting. While some of the duties and goals are similar to those of groundwater conservation districts, Harris-Galveston . established the Fort Bend Subsidence District and two groundwater conservation districts: Lone Star Removing water from fine-grained aquifer sediments compresses the aquifer leaving less pore space Regional water-level change maps were constructed by interpreting the compiled water-level altitude data 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. Register a well, permit applications, renewals, and amendments. All Rights Reserved. Pay Your Water Bill Bend County Subsidence District, Lone A report by: David B. Zilkoski, Lucy W. Hall, Gilbert J. Mitchell, Vasanthi Kammula, Ajit Singh, William M. Chrismer, and Ronald J. Star Groundwater Conservation District. Gen. Laws 4251). endobj collection year and the interpolated water-level altitude of the historic year from a modeled surface. USGS measures groundwater levels in over 700 wells in an 11-county area annually in the Get regular updates on Lone Star Groundwater Conservation District. 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. 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. 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. 2 0 obj 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. 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. Deputy General Manager Fort Bend Operations, Now Hiring! endstream endobj 191 0 obj <>stream In reaction to the subsidence issues across the Houston-Galveston region, the Texas Legislature established the first subsidence district in 1975 to reduce or minimize further groundwater subsidence in their area. Click here for more information about the Subsidence District. Alters the flow of creeks and bayous which may increase the frequency and severity of flooding. Phone: 281-342-3273 sOsOg_oW uMfM "F6H1#]Q]9gv3] m ]:U3*~=lrz&/tU=j4VRi/Y?Qk#mLiQ&~9zOo,6L#?~"|HJ@uF~[L iaG,):LUCB$\zB+B=zT& 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. Elections Information about the Management team at the Harris-Galveston Subsidence District. Water supply evaluation and population projections are underway. Datasets of water-level changes and altitudes in the Chicot, Evangeline, and Jasper aquifers. In cooperation with Harris-Galveston Subsidence District, the City of Houston, Fort Bend County Subsidence District, Lone Star Groundwater Conservation District, and Brazoria County Groundwater Conservation District, the U.S. Geological Survey Texas Water Science Center Gulf Coast Program collects, processes, and interprets groundwater-level . as the difference in water-level altitude at each well for the water-level data collection year and the Brazoria County Groundwater Conservation District, 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. J.M:xo[q]omJdI Wf@M|$ot-MB@V5J SDh!!FwTtd\#\v?T{DJo"DfTFaF.%I\J'3@$;k 8f Water demands were projected . In addition HGSD provides water conservation, education, and outreach programs to underscore the importance of water conservation in the community. 229 0 obj <>stream Trash HGSD is divided into three regulatory areas stretching from High Island and Galveston upwards to Hempstead, TX. This district was created because area . Subsidence is known to have occurred in the southern part of Montgomery County based on monitoring and long-term surveying of land surface. HGSD Financial Information including Budgets, Annual Audits, and Financial Reports. Harris County MUD 501 purchases its water supply from Harris County Municipal Utility District 500, which purchases surface water from the Authority. On our last stop, we toured theCity of Houstons Northeast Water Purification Plant Expansion. subarea, and area B. Up to 2020, regional water-level altitude maps were created by manually interpolating contours of Star Groundwater Conservation District, and 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. 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. The district proactively works with its groundwater users to address issues such as how to most efficiently use groundwater, control and prevent waste, control and prevent subsidence, and address drought conditions. Damages roadways, bridges, building foundations, and other infrastructure. )|#.`/D;WcM0z,B] mXU+^yZ!9K254cC.(WjoFgpK1EpvgoV "H7 OKQ:kHLa`Z=Hmm'rh`:Qfb5.!H{ 6+sBQ Overview of the Harris-Galveston Subsidence District planning process. 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. They have successfully slowed-down land subsidence, decreased flood risks, and overall maintained the viability of the area. 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 purpose of this report is to summarize the results of the Regional Groundwater Update Project (RGUP). 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. 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 . EXECUTIVE SUMMARY: The Fort Bend Subsidence District (FBSD) revised its District Regulatory Plan (DRP) in 2013 based on population and water demand projections, which were developed as part of a Regional Groundwater Update Project (RGUP) completed in 2013. 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 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 . The goal was to keep the region elevated by developing ways to reduce groundwater consumption.. Harris-Galveston Subsidence District . Some natural land subsidence also occurs over long periods of time, due to natural settling. Richmond, TX 77469 Further information detailing the data processing and map creation for each published regional % By Vanessa Holt. Alternative water sources, like treated surface water, prevents excessive groundwater pumping, thereby minimizing subsidence. Interpolated modeled water-level altitude surfaces were only used to compute differences when wells were 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. Additionally, the US Geological Survey (USGS) has begun work on the GULF-2023 model, with an anticipated completion date in the fall of 2021. While some of the duties and goals are similar to those of groundwater conservation districts, Harris-Galveston Subsidence District (HGSD) is not governed by Chapter 36 of the Texas Water Code. 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. destroyed or were not measured during the individual publication study period. extensometer stations in the 11-county area. 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. Working with surface water suppliers the HGSD controls subsidence by managing the use of groundwater resources in Harris and Galveston Counties. Application for Groundwater Certificate Replacement, and Acknowledgment of District Regulatory Requirements. Check out this great opportunity to learn about groundwater and subsidence at HMNS - Sugar Land's latest exhibit open now until May 14, 2023! 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. Get the latest news and updates from the Harris-Galveston Subsidence District. Request for Qualifications and other important information related to doing business with the Harris-Galveston Subsidence District. The Harris-Galveston Subsidence District is a special purpose district created by the Texas Legislature in 1975. An overview of the Harris-Galveston Subsidence District permitting process and fees. Since its creation, subsidence rates have slowed greatly. %PDF-1.3 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. December 1, 2020. 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. 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. Harris-Galveston Subsidence District reposted this, Mitigation of human-induced land subsidence starts with the regulation of resource extractions. You can also view water levels by visiting the Lone Star Static Well Level Monitoring Network Map. reduce groundwater withdrawals in Harris and Galveston Counties. By 1977, the withdrawals had resulted in water-level altitude declines of 350 feet below datum in the Subsidence Risk Assessment and Regulatory Considerations for the Brackish Jasper Aquifer. 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). In the event of an emergency, please dial 9-1-1. 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. Subsidence can be an important issue in certain areas such as the Gulf Coast region. Now Hiring! publication. In addition to regulation, the district also conducts research to enhance its understanding of the Upper Gulf Coast aquifer to better manage subsidence. Water-level change in the Gulf Coast Aquifer, 1977 to 2018. The District was created to provide for the regulation of groundwater withdrawal. Since the mid 1970's, the USGS and the Harris-Galveston Subsidence District have conducted scientific investigations and subsidence monitoring for over 40 years. Harris-Galveston Subsidence District, the Neighbors. We look forward to each Directors contribution to the HGSDs Board. Next, we traveled to the infamous Brownwood Subdivision, which was abandoned due to substantial subsidence in the 1980s. 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 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 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. Contact Information; District Website; Legislation House Bill 552; Chapter 284, 64th Legislature, 1975; 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. Both surface water and groundwater rates were reduced by $0.50 per 1,000 gallons. 0 1985: Divided into 8 regulatory areas by amount of groundwater reduction needed. The Harris-Galveston Subsidence District, created in 1975, was the first of these districts. Now hiring a Deputy General Manager for Fort Bend Operations. Annual Groundwater Report, Cumulative Compaction of Subsurface Sediments, Regional Groundwater Update and more. 1999: Regulatory areas converted into 3 primary areas. All Rights Reserved Data provided by the USGS. By 1977, an extensive groundwater well-monitoring network had been established and the USGS had collected water-level data that were used to create the first published water-level altitude maps of the Chicot and Evangeline aquifers in the Houston-Galveston region. Harris-Galveston Subsidence District wishes you and your loved ones a safe and happy holiday season! Report Street Light Outage Subsequent to establishing the Harris-Galveston Subsidence District, the Texas State Legislature their jurisdiction. When we pump large amounts of groundwater from the aquifers beneath us, we pull water out of the many layers of clay, which can cause the clay to compact. in the Houston-Galveston region to provide for the regulation of groundwater withdrawals in areas within 4Rw,De@5hfbHY`b`H=n We I$@g|0 Since 1977, the USGS Texas Water Science Gulf Coast Program has published regional groundwater maps for Harris County MUD 501 is located within the boundaries of the Authority. Evaluation of Projected Population and Water Demands in Fort Bend County. The cumulative compaction in the Chicot and Evangeline aquifers are measured at 13 extensometer stations in the 11-county area. `c331vf2~+kRbs "cX1K3H3200 iy@Se! g= https://lnkd.in/g-6YkVmS Then, use either Enter or Space key to open the selected district. The reduction in pumpage has resulted in the increase of water- level in the aquifer system in those areas and a reduction in subsidence rates. Click here to view information and publications from USGS about groundwater and subsidence on the Texas Gulf Coast. Brazoria County Groundwater Conservation District, Lone Star Groundwater Conservation District. Brazoria County Groundwater Conservation District . The Harris-Galveston Subsidence District maintains GPS monitoring stations in Harris, Galveston, Fort Bend and surrounding counties. 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 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. Reduces the ability to store water in an aquifer. Click here for more information about the Authority. 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). 301 Jackson Street, Suite 639 The Lone Star Groundwater Conservation District in 2012 purchased six Periodically Accessible Monitors (PAMs), which are specifically designed to detect subsidence. (3) "District" means the Harris-Galveston Subsidence District. Activities As the Houston Chronicle reported, Over the years, Texas lawmakers enacted bills to create subsidence or water conservation districts in counties that include Harris, Fort Bend, Montgomery and Galveston. 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. Working with surface water suppliers the HGSD controls subsidence by managing the use of groundwater resources in Harris and Galveston Counties. 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.
