- Publication Date
- 2019-09-16
- Start Date
- 1977
- End Date
- 2019
Ramage, J.K., and Braun, C.L., 2019, Groundwater-level altitudes and long-term groundwater-level Changes in the Chicot, Evangeline, and Jasper aquifers, Houston-Galveston Region, Texas, 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P91CKWVC.
The U.S. Geological Survey (USGS) in cooperation with the Harris‐Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, and Lone Star Groundwater Conservation District has produced this dataset of groundwater‐level altitudes and groundwater‐level altitude changes in the Chicot, Evangeline, and Jasper aquifers in the Houston‐Galveston region, Texas. This dataset shows current‐year (2019) groundwater‐level altitudes for each aquifer, 5‐year (2014‐19) groundwater‐level changes for each aquifer, long‐term (1990‐2019 and 1977‐2019) groundwater‐level changes for the Chicot and Evangeline aquifers, and long‐term (2000‐2019) groundwater‐level change for the Jasper aquifer. The groundwater‐level measurements from which [...]
The U.S. Geological Survey (USGS) in cooperation with the Harris‐Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, and Lone Star Groundwater Conservation District has produced this dataset of groundwater‐level altitudes and groundwater‐level altitude changes in the Chicot, Evangeline, and Jasper aquifers in the Houston‐Galveston region, Texas. This dataset shows current‐year (2019) groundwater‐level altitudes for each aquifer, 5‐year (2014‐19) groundwater‐level changes for each aquifer, long‐term (1990‐2019 and 1977‐2019) groundwater‐level changes for the Chicot and Evangeline aquifers, and long‐term (2000‐2019) groundwater‐level change for the Jasper aquifer. The groundwater‐level measurements from which the dataset were built are stored in the USGS National Water Information System (NWIS) (http://dx.doi.org/10.5066/F7P55KJN) and are accessible through the NWIS Web Interface. In 2019, groundwater-level-altitude contours for the Chicot aquifer ranged from 200 feet (ft) below the North American Vertical Datum of 1988 to 200 ft above datum. Groundwater-level-altitude contours for the Evangeline aquifer ranged from 300 ft below datum to 200 ft above datum. Groundwater-level-altitude contours for the Jasper aquifer ranged from 200 ft below datum to 250 ft above datum. In each aquifer, the highest and lowest groundwater-level altitudes were measured in relatively small, isolated areas. This dataset was created by the U.S. Geological Survey to provide resource managers, public officials, researchers, and the general public with ready access to accurate, impartial, scientific information regarding groundwater‐level changes and altitudes in Harris, Galveston, Fort Bend, Montgomery, Brazoria, Chambers, Grimes, Liberty, San Jacinto, Walker, and Waller Counties, Texas. These digital data accompany Braun, C.L., Ramage, J.K., and Shah, S.D., 2019, Status of groundwater-level altitudes and long-term groundwater-level changes in the Chicot, Evangeline, and Jasper aquifers, Houston-Galveston region, Texas, 2019: U.S. Geological Survey Scientific Investigations Report 2019–5089, 18 p.
Click on title to download individual files attached to this item.
Toplevel_xml_file_2019_final.xml
Original FGDC Metadata
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13.53 KB |
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GW_Level_Alt_Longterm_Change_SourceData_2019.zip
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32.85 KB |
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Chicot.zip
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926.51 KB |
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Evangeline.zip
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1.15 MB |
application/zip |
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Jasper.zip
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498.44 KB |
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This dataset is part of an annual project that measures groundwater-levels and calculates long-term groundwater-level changes in the Chicot, Evangeline and Jasper aquifers located within Harris, Galveston, Fort Bend, Montgomery, Brazoria, Chambers, Grimes, Liberty, San Jacinto, Walker, and Waller Counties, Texas. The data were obtained to assess annual groundwater-level changes related to groundwater withdrawal and land-surface subsidence in the Houston-Galveston region, Texas. Land-surface subsidence occurs as a direct result of groundwater withdrawals for municipal supply, commercial and industrial use, and irrigation that depressures and dewaters the Chicot, Evangeline, and Jasper aquifers, thereby causing compaction of the aquifer sediments (Gabrysch, 1979). This dataset was created to provide resource managers, public officials, researchers, and the general public with ready access to accurate, impartial, scientific information regarding groundwater‐level measurements.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein.
