Missouri Department of Natural Resources (DNR), Missouri Geological Survey (MGS), Geological Survey Program (GSP)20151120MO 2015 Post 2000 Depth to Groundwater SE MO (SHP)vector digital dataftp://msdis.missouri.edu/pub/Geological_Geophysical/MO_2015_Post_2000_Depth_to_Groundwater_SE_MO_shp.zipDrainage of swamplands and increases in high-yield agricultural pumping in southeast Missouri over a 30 year period may have affected water table depths and potentially altered the risk of subsequent liquefaction following an earthquake. It was unknown if recent high-yield pumping has affected depth to groundwater extensively in the study area. The purpose of this map is to provide a basis for comparison between static water levels (SWL) prior to 1971 and those of present day (2000 and later). Depths to groundwater were determined using existing well log data.To establish baselines for determination of potential changes in groundwater depth related to agricultural pumping, and to define regions within the Missouri portion of the Mississippi Embayment whose characteristics match criteria for high, moderate, and low liquefaction susceptibility based on static water levels (SWLs) and the presence and thickness of a clay-rich cap overlying alluvial sand deposits.The metadata content associated with this data set was reviewed by Mustafa Rahim on 20151209. The metadata content review is intended to ensure that all of the required content is present. The components comprising the metadata document were reviewed by Mustafa Rahim on 20151209. The metadata component review is intended to ensure that required metadata components are consistent and understandable to data consumers.20151120publication dateNone planned-90.744552-89.10217737.31009135.965228static water leveldepth to groundwateralluvial aquiferMississippi EmbaymentliquefactionNone.geoscientificInformationSoutheast (SE)Missouri (MO)Southeast Missouri (SEMO)None.NoneAlthough all data in this data set have been compiled by the Missouri Department of Natural Resources, no warranty, expressed or implied, is made by the department as to the accuracy of the data and related materials.Thomas HerbstMissouri Department of Natural Resources, Missouri Geological Survey, Geological Survey ProgramGeologistmailing and physical addressP.O. Box 250111 Fairgrounds RoadRollaMissouri65401United States(573) 368-2484800-735-2966(573) 368-2111thomas.herbst@dnr.mo.govMonday through Friday, 8 a.m. to 5 p.m. Central timeMissouri Department of Natural Resources (MoDNR)Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.5.4400UnclassifiedShapefileNoneThe locations of the points in the data set used to create the isobathic contours were taken from Public Land Survey System (PLSS) descriptions of Township, Range, Section, and Section Subdivisions; and Global Positioning System (GPS).The horizontal positional accuracy of isobaths is contingent on the accuracy with which well drillers report the well locations to the Missouri Department of Natural Resources.This shapefile was created from post-2000 well log data (CERTWELLS). Point data was interpolated using Inverse Distance Weighting (IDW) to create a model of SWL across the study area. From this, a set of potentiometric contours (isobaths) was generated. Contouring within Crowley's Ridge and Bird's Point-New Madrid Floodway was excluded due to the absence of the alluvial aquifer at Crowley's Ridge and past activation of the Floodway distorting water levels and sediment thicknesses.20151120Thomas HerbstMissouri Department of Natural Resources (MoDNR), Missouri Geological Survey (MGS), Geological Survey Program (GSP)Geologistphysical address111 Fairgrounds RoadRollaMissouri65401United States(573) 368-2484800-735-2966(573) 368-2111thomas.herbst@dnr.mo.govMonday through Friday, 8 a.m. to 5 p.m. Central timeString1050coordinate pair0.0000000.000000metersNorth American Datum of 1983Geodetic Reference System 806378137.000000298.257222SWL_POST_2000Depth to groundwater for alluvial aquifer in southeast Missouri (bootheel)Missouri Department of Natural ResourcesFIDInternal feature number.EsriSequential unique whole numbers that are automatically generated.Sequential unique whole numbers that are automatically generated.ShapeFeature geometry.EsriCoordinates defining the features.Coordinates defining the features.CONTOURDepth to groundwater in feet. Zero values indicate the water table is at or above ground surface.Downloadable dataAlthough all data in this data set have been compiled by the Missouri Department of Natural Resources, no warranty, expressed or implied, is made by the department as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the department in the use of these data or related materials.1.11420151120Thomas HerbstMissouri Department of Natural Resources (MoDNR), Missouri Geological Survey (MGS), Geological Survey Program (GSP)Geologist(573) 368-2484800-735-2966(573) 368-2111thomas.herbst@dnr.mo.govMonday through Friday, 8 a.m. to 5 p.m. Central timemailing and physical address111 Fairgrounds RoadRollaMissouri65401United StatesFGDC Content Standards for Digital Geospatial MetadataUnclassifiedhttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata ProfileTo establish baselines for determination of potential changes in groundwater depth related to agricultural pumping, and to define regions within the Missouri portion of the Mississippi Embayment whose characteristics match criteria for high, moderate, and low liquefaction susceptibility based on static water levels (SWLs) and the presence and thickness of a clay-rich cap overlying alluvial sand deposits.<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Drainage of swamplands and increases in high-yield agricultural pumping in southeast Missouri over a 30 year period may have affected water table depths and potentially altered the risk of subsequent liquefaction following an earthquake. It was unknown if recent high-yield pumping has affected depth to groundwater extensively in the study area. The purpose of this map is to provide a basis for comparison between static water levels (SWL) prior to 1971 and those of present day (2000 and later). Depths to groundwater were determined using existing well log data.</SPAN></P></DIV></DIV>Missouri Department of Natural Resources (MoDNR)Post-2000 depth to groundwater for alluvial aquifer in southeast Missouri (bootheel)static water leveldepth to groundwateralluvial aquiferMississippi Embaymentliquefactiongeoscientific<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Although all data in this data set have been compiled by the Missouri Department of Natural Resources, no warranty, expressed or implied, is made by the department as to the accuracy of the data and related materials.</SPAN></P></DIV></DIV>1.0FGDC