Identification_Information: Citation: Citation_Information: Originator: Allan K. Clark Originator: Jason R. Faith Originator: Charles D. Blome Originator: Diana E. Pedraza Publication_Date: 2006 Title: Geologic Map of the Edwards Aquifer in Northern Medina and Northeastern Uvalde Counties, South-Central Texas Edition: Version 1 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open File Report Issue_Identification: 06-1372 Publication_Information: Publication_Place: Denver, CO Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2006/1372 Description: Abstract: The southern segment of the Edwards aquifer in south-central Texas is one of the most productive subsurface reservoirs of potable water in the world, providing water of excellent quality to more than a million people in the San Antonio region, where the Environmental Protection Agency (EPA) has declared it to be a sole-source aquifer (van der Leeden and others, 1990). Depending on the depositional province within which the associated carbonate rocks originated (Maclay and Small, 1984), the Edwards aquifer is composed of several geologic formations (primarily limestone and dolostone) of Early Cretaceous age. Most water pumped from the Edwards aquifer comes form the Person and Kainer Formations, which were deposited over the San Marcos Platform. The principal source of ground water in study area is the devils River Formation, which was deposited in the Devils River trend. The Devils River Formation provides large quantities of irrigation water to fertile bottomland areas of Medina and Uvalde Counties, where the success of farming and ranching activities has long depended upon water from the Edwards aquifer. The study area includes all of the Edwards aquifer recharge zone between the Sabinal River (on the west) and the Medina River (on the east) plus an updip fringe of the confined zone in east-central Uvalde and central Medina Counties. Over about ninety percent of the study area--within the Devils River trend--the Edwards aquifer is composed of the Georgetown Formation plus the underlying Devils River Formation. Over the remaining area--over the southwestern margin of the San Marcos platform--the Edwards aquifer consists of the Georgetown Formation plus the underlying Edwards Group (Rose, 1972), which comprises the Kainer and Person Formations. Purpose: The purpose of this study is to improve the understanding of the hydrogeologic setting and hydrologic properties of the Edwards aquifer in northern Medina and northeastern Uvalde Counties. The map illustrates the geologic framework and hydrogeologic characteristics of the Edwards aquifer in northern Medina and the adjoining part of northeastern Uvalde County. Supplemental_Information: Map political location: Edwards aquifer in northern Medina and northeastern Uvalde Counties, Texas Geospatial Dataset: Base_data: Caves caves located within study area Counties24K Texas counties at 1:24,000 Medina_Lake Medina and Diversion Lakes Roads Texas major roadways Springs springs located within study area Streams100k_NHD Streams from the National Hydrography Dataset at 1:100,000 Study_boundary_outline outline of the study area Study_boundary_Poly polygon of the study area TCEQ_Recharge_Zone TCEQ recharge zone of the Edwards aquifer SurfaceGeology: Facies_Line facies line Faults faults within the study area Geology surface hydrogeology Xsections: TraceA path of A-A' cross section TraceAA well points corresponding to A-A' cross section TraceB path of B-B' cross section TraceBB well points corresponding to B-B' cross section Corresponding Shapefiles: Caves.shp Counties24k.shp Medina_Lake.shp Roads.shp Springs.shp Streams100k_NHD.shp Study_boundary_Outline.shp Study_boundary_poly.shp TCEQ_Recharge_Zone.shp Facies_Line.shp Faults.shp Geology.shp TraceA.shp TraceAA.shp TraceB.shp TraceBB.shp Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Arc/INFO format, this metadata file may include some Arc/INFO-specific terminology. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -99.519815 East_Bounding_Coordinate: -98.899200 North_Bounding_Coordinate: 29.610853 South_Bounding_Coordinate: 29.399162 Keywords: Theme: Theme_Keyword_Thesaurus: AGI Glossary of Geology Theme_Keyword: Balcones Fault Zone Theme_Keyword: confined zone Theme_Keyword: Devils River Formation Theme_Keyword: Devils River trend Theme_Keyword: Edwards aquifer Theme_Keyword: Edwards Group Theme_Keyword: en echelon faulting Theme_Keyword: Georgetown Formation Theme_Keyword: Kainer Formation Theme_Keyword: Karstic terrain Theme_Keyword: Person Formation Theme_Keyword: recharge zone Theme_Keyword: San Marcos Platform Place: Place_Keyword_Thesaurus: Board of Geographic Names Place_Keyword: Balcones Fault Zone Place_Keyword: Medina County Place_Keyword: Medina River Place_Keyword: Sabinal River Place_Keyword: South-Central Texas Place_Keyword: Uvalde County Access_Constraints: None. Use_Constraints: None. Acknowledgement of the U.S. Geological Survey would be appropriate in products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Allan K. Clark Contact_Organization: US Geological Survey Contact_Position: Hydrologist Contact_Address: Address_Type: mailing and physical address Address: 5563 DeZavala Address: Suite 290 City: San Antonio State_or_Province: Texas Postal_Code: 78249 Country: USA Contact_Voice_Telephone: 210.691.9228 Contact_Facsimile_Telephone: 210.691.9270 Hours_of_Service: 8:00 am - 4:30 pm CST Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2006/1372 Browse_Graphic_File_Description: graphical representaion of maps Browse_Graphic_File_Type: PDF Data_Set_Credit: None. Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Cross_Reference: Citation_Information: Originator: Charles D. Blome Originator: Jason R. Faith Originator: Edward W. Collins Originator: Diana E. Pedraza Originator: Kyle E. Murray Publication_Date: 2004 Title: Geologic Map Compilation of the Upper Seco Creek Area, Medina and Uvalde Counties, South-Central Texas Edition: Version 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Open File Report Issue_Identification: 2004-1430 Publication_Information: Publication_Place: Denver, CO Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2004/1430 Cross_Reference: Citation_Information: Originator: Allan K. Clark Publication_Date: 2003 Title: Geologic Famework and Hydrogeologic Characteristics of the Edwards Aquifer, Uvalde County, Texas Edition: Version 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Water-Resources Investigations Report Issue_Identification: 03-4010 Publication_Information: Publication_Place: Austin, Texas Publisher: U.S. Geological Survey Cross_Reference: Citation_Information: Originator: Ted A. Small Originator: Allan K. Clark Publication_Date: 2000 Title: Geologic Framework and Hydrogeologic Characteristics of the Edwards Aquifer Outcrop, Medina County, Texas Edition: Version 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Water-Resources Investigations Report Issue_Identification: 00-4195 Publication_Information: Publication_Place: Austin, Texas Publisher: U.S. Geological Survey Cross_Reference: Citation_Information: Originator: Ted A. Small Originator: Rebecca B. Lambert Publication_Date: 1997 Title: Geologic Framework and Hydrogeologic Characteristics of the Outcrops of the Edwards and Trinity Aquifers, Medina Lake Area, Texas Edition: Version 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Water-Resources Investigations Report Issue_Identification: 97-4290 Publication_Information: Publication_Place: Austin, Texas Publisher: U.S. Geological Survey Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attribute values from DEMs for topographic profile were carefully checked by authors and reviewers against the known point values taken from geophysical logs, field surveys, and maps. Potential for errors exist in values due to hydrologists interpretation. Logical_Consistency_Report: All data were visually checked for duplicate features, overshoots, undershoots, residual polygons, and other errors. ARC/INFO software was used to create topological relations among the features to check for and correct errors. Features may have been duplicated in positional location of wells. Coincidental lines may also exist between features where appropriate. Completeness_Report: All well data were collected from geophysical logs, field surveys, and maps. These data were plotted using their latitude and longitude coordinates. Data are complete: no features were eliminated or generalized. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Locations of points were plotted from their recorded latitude and longitude coordinates. Potential exists for errors in their locations because of inaccurately documented coordinates. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: T.A. Small Originator: A.K. Clark Publication_Date: 2000 Title: Geologic framework and hydrogeologic characteristics of the Edwards aquifer outcrop, Medina County, Texas Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Water-Resources Investigations Report Issue_Identification: WRIR 00-4195 Publication_Information: Publication_Place: Austin, TX Publisher: U.S. Geological Survey Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: WRIR00-4195 Source_Contribution: hydrogeology of the Edwards aquifer outcrop in Medina County, Texas Process_Step: Process_Description: Basic base map data, such as county boundaries, roads, streams, recharge zone, surface geology and faults were extracted from a local GIS database and reputable online sources. All base map data were then clipped to fit the appropriate spatial extent of the project. Process_Date: 2004 Process_Step: Process_Description: Hydrogeology was mapped in the field and hand drawn on 7.5-minute USGS topographical quadrangles. Process_Date: 2004 Process_Step: Process_Description: Delineated hydrogeology drawn on 7.5-minute USGS topographical quadrangles were digitized into a new feature class of the study area. Hydrostratigraphic unit descriptors were added to the attribute table of the feature class. Process_Date: 2004 Process_Step: Process_Description: The created hydrogeology feature class of the study area was integrated into the existing hydrogeology of the area from a previous scientific investigation. Process_Date: 2004 Process_Step: Process_Description: All feature classes were checked for topological errors. Process_Date: 2005 Process_Step: Process_Description: Draft check plots of the geologic map and explanation were created and submitted for peer review. Geologists reviewed the plots for conformity with U.S. Geological Survey editorial standards and hydrostratigraphic nomenclature. Revisions were made to the geospatial data set as needed. Process_Date: 2006 Process_Step: Process_Description: The geospatial data set files and metadata were quality checked for completeness and consistency. Process_Date: 2006 Process_Step: Process_Description: First draft of metadata created by Diana E. Pedraza Process_Date: 2006 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 14 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -99.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.65024 Ordinate_Resolution: 0.65024 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: 0.000010 Altitude_Distance_Units: meters Altitude_Encoding_Method: Attribute values Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Counties24K feature class: Polygons ATTRIBUTE NAMES: NAME DESCRIPTION OF ATTRIBUTE NAMES: NAME: name of each Texas county ITEM VALUES FOR 'NAME': NAME ----------------- BANDERA BEXAR COMAL HAYS KENDALL MEDINA TRAVIS UVALDE Overview_Description: Entity_and_Attribute_Overview: Roads feature class: Line ATTRIBUTE NAMES: HWYNAME; DESCRIPTION OF ATTRIBUTE NAMES: HWYNAME: Highway name of each road ITEM VALUES FOR 'HWYNAME': HWYNAME ---------------------------------------------- RANCH RD 1796 RANCH RD 187 RANCH RD 462 STATE HWY 173 Overview_Description: Entity_and_Attribute_Overview: Streams100K_NHD feature class: Line ATTRIBUTE NAMES: GNIS_Name DESCRIPTION OF ATTRIBUTE NAMES: GNIS_Name: Name of stream/creek ITEM VALUES FOR 'GNIS_Name': GNIS_Name -------------------------------- Bear Spring Creek Bravo Creek Bull Creek Comanche Creek Cow Creek Dripping Spring Creek East Branch Live Oak Creek Elm Creek First Creek Hexa Creek Hondo Creek Indian Spring Creek Koenig Creek Little Comanche Creek Little Creek Little Seco Creek Martin Creek Medina River Middle Verde Creek Parkers Creek Polecat Creek Quihi Creek Rancheros Creek Rocky Creek Sabinal River Seco Creek Second Creek Verde Creek Wards Creek Entity_and_Attribute_Detail_Citation: Streams feature class was retrieved from the National Hydrography Dataset available online at http;//nhd.usgs.gov/data.html Overview_Description: Entity_and_Attribute_Overview: Study_boundary_outline feature class: Line ATTRIBUTE NAMES: none No attributes associated with this file. Overview_Description: Entity_and_Attribute_Overview: TCEQ_Recharge_Zone feature class: Polygon ATTRIBUTE NAMES: CODE; TYPE; TNRCC_CITA; DESCRIPTION OF ATTRIBUTE NAMES: CODE: Integer corresponding with Edwards Aquifer Recharge Zone TYPE: Identifies the Edwards Aquifer Recharge Zone TNRCC_CITA: ITEM VALUES 'CODE' 'TYPE' AND 'TNRCC_CITA': CODE TYPE TNRCC_CITA ------------------------------------------------------------ 1 Edwards Aquifer Recharge Zone 30 TAC Ch. 213 Entity_and_Attribute_Detail_Citation: Recharge zone boundary retrieved online from Texas Commission on Environmental Quality at http://www.tceq.state.tx.us/ Overview_Description: Entity_and_Attribute_Overview: Faults feature class: Lines ATTRIBUTE NAMES: GEOID; FAULT_TYPE; NAME; COUNTY;DISPLACEMENT_TO_SOUTH; DESCRIPTION OF ATTRIBUTE NAMES: GEOID: Integer corresponding to FAULT_TYPE FAULT_TYPE: fault type descriptor NAME: Name of fault COUNTY: County fault line is residing in DISPLACEMENT_TO_SOUTH: Upthrown (U) or Downthrown (D) displacement of fault to the south ITEM VALUES FOR 'GEOID' AND 'FAULT_TYPE': GEOID FAULT_TYPE ------------------------------ 2 fault-certain 3 fault-inferred ITEM VALUES FOR 'NAME', 'COUNTY' AND 'DISPLACEMENT_TO_SOUTH': NAME COUNTY DISPLACEMENT_TO_SOUTH --------------------------------------------------------------- Bowman fault Medina D Diversion Lake fault Uvalde U Haby Crossing fault Hondo Creek fault Indian Springs fault Koenig Creek fault Lakehills fault Lincoln fault Medina Lake fault Mico fault Mustang Valley fault Parker Creek fault Seco Creek fault Seco Creek Valley fault Seco Valley Road fault Vandenburg School fault Verde Creek fault Woodard Cave fault Overview_Description: Entity_and_Attribute_Overview: Facies_Line feature class: Line ATTRIBUTE NAMES: GEOID; Line_Type DESCRIPTION OF ATTRIBUTE NAMES: GEOID: Integer corresponding to FAULT_TYPE Line_Type: line descriptor ITEM VALUES FOR 'GEOID' AND 'Line_Type': GEOID Line_Type ------------------------------ 1 facies line Overview_Description: Entity_and_Attribute_Overview: Geology feature class: Polygons ATTRIBUTE NAMES: GEOID; GEOLOGY; GEO_SYMBOL; Relative_Age; DESCRIPTION OF ATTRIBUTE NAMES: GEOID: Integer identifying the geologic unit GEOLOGY: Geology unit name GEO_SYMBOL: Geology unit name abbreviation Relative_Age: Relative age of geologic unit ITEM VALUES FOR 'GEOID' AND 'GEOLOGY': GEOID GEOLOGY ------------------------------ 100 DEL RIO CLAY 102 DEVILS RIVER FORMATION 104 DOLOMITIC MEMBER 106 EAGLE FORD GROUP 108 ESCONDIDO FORMATION 110 GEORGETOWN FORMATION 112 GRAINSTONE MEMBER 114 KIRSCHBERG EVAPORITE MEMBER 116 LEACHED AND COLLAPSED MEMBER 118 LEONA FORMATION 120 REGIONAL DENSE MEMBER 124 UPPER MEMBER OF THE GLEN ROSE 126 UVALDE GRAVEL 128 BUDA LIMESTONE 130 BASAL NODULAR MEMBER 132 AUSTIN GROUP 134 ANACACHO LIMESTONE 136 ALLUVIUM ITEM VALUES FOR 'GEO_SYMBOL': GEO_SYMBOL ----------------------------------- Kac Kau Kbu Kdr Kdvr Kef Kgru Kgt Kkbn Kkd Kkg Kkke Kplc Kprd Qal Qle QTu ITEM VALUES FOR 'Relative_Age': Relative_Age ----------------------------------- Lower Creataceous Pleistocene Quat & Up. Tertiary Quaternary Upper Cretaceous Entity_and_Attribute_Detail_Citation: Description of the polygon and line geologic coding schemes are available in U.S. Geological Survey Scientific Investigations Map 2873, Water-Resources Investigations Report 00-4195, and WRIR 03-4010 (full source citations follow): Blome, C.D., Faith, J.R., Pedraza, D.E., Ozuna, G.B., Cole, J.C, Clark, A.K., Small, T.A., and Morris R.R., 2005, Geologic Map of the Edwards Aquifer Recharge Zone, South-Central Texas, Version 1.0: U.S. Geological Survey Scientific Investigations Map 2873 Clark, Allan K., 2003, Geologic Framework and Hydrogeologic Characteristics of the Edwards Aquifer, Uvalde County, Texas, Version 1.0: U.S. Geological Survey Water-Resources Investigations Report 03-4010 Small, T.A. and Clark, A.K., 2000, Geologic Framework and Hydrogeologic Characteristics of the Edwards Aquifer Outcrop, Medina County, Texas, Version 1.0: U.S. Geological Survey Water-Resources Investigations Report 00-4195 Overview_Description: Entity_and_Attribute_Overview: TraceAA feature class: Points ATTRIBUTE NAMES: STATEWELLNO; LATITUDE; LONGITUDE; DESCRIPTION OF ATTRIBUTE NAMES: STATEWELLNO: State well numbers LATITUDE: latitude of well LONGITUDE: longitude of well ITEM VALUES FOR 'STATEWELLNO' 'LATITUDE' AND 'LONGITUDE': STATEWELLNO LATITUDE LONGITUDE --------------------------------------- TD-69-40-209 292843 990401 TD-69-40-510 292536 990409 TD-69-32-802 293036 990437 TD-69-32-703 293202 990635 Overview_Description: Entity_and_Attribute_Overview: TraceBB feature class: Points ATTRIBUTE NAMES: STATEWELLNO; LATITUDE; LONGITUDE; DESCRIPTION OF ATTRIBUTE NAMES: STATEWELLNO: State well numbers LATITUDE: latitude of well LONGITUDE: longitude of well ITEM VALUES FOR 'STATEWELLNO' 'LATITUDE' AND 'LONGITUDE': STATEWELLNO LATITUDE LONGITUDE --------------------------------------- TD-69-40-404 292606 990714 TD-69-39-504 292702 991138 TD-69-38-500 292608 991739 TD-69-38-700 292443 992043 TD-68-33-213 292929 985617 YP-69-37-402 292710 992822 Overview_Description: Entity_and_Attribute_Overview: TraceA feature class: Line ATTRIBUTE NAMES: none No attributes associated with this file Overview_Description: Entity_and_Attribute_Overview: TraceB feature class: Line ATTRIBUTE NAMES: none No attributes associated with this file Overview_Description: Entity_and_Attribute_Overview: Medina_Lake feature class: Polygons ATTRIBUTE NAMES: Name DESCRIPTION OF ATTRIBUTE NAMES: Name: Name of lake ITEM VALUES FOR 'Name': Name ------------------------------ Medina Lake Diversion Lake Entity_and_Attribute_Detail_Citation: Data retrieved from the National Hydrography Dataset available online at http://nhd.usgs.gov/data.html Overview_Description: Entity_and_Attribute_Overview: Caves feature class: Points ATTRIBUTE NAMES: Name DESCRIPTION OF ATTRIBUTE NAMES: Name: name of cave ITEM VALUES FOR 'Name': Name ------------------------------ Woodard (Bat) Cave Rugh Sinkhole Boehmes Cave Haby Bat Cave Ney Cave Overview_Description: Entity_and_Attribute_Overview: Springs feature class: Points ATTRIBUTE NAMES: Name DESCRIPTION OF ATTRIBUTE NAMES: Name: name of spring ITEM VALUES FOR 'Name': Name ------------------------------ Cypress Spring Indian Spring Moccasin Spring Sheep Spring Entity_and_Attribute_Detail_Citation: Data retrieved from National Hydrography Dataset available online at http://nhd.usgs.gov/data.html Overview_Description: Entity_and_Attribute_Overview: Contour feature class: Line ATTRIBUTE NAMES: Contour_Label DESCRIPTION OF ATTRIBUTE NAMES: Contour_Label: Contour in feet at an interval of 20' ITEM VALUES FOR 'Contour_Label': Contour_Label ------------------------------ 860-2080 Entity_and_Attribute_Detail_Citation: Data retrieved from Texas Natural Resources Information System at http://www.tnris.state.tx.us/ Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: Central Publications Group Address: Box 25046 Address: Denver Federal Center, MS-902 City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303.236.5486 Resource_Description: Open File Report 06-1372 Distribution_Liability: Although this digital spatial data has been subjected to rigorous review and are substantially complete, they are released on the condition that neither the USGS nor the United States Government may be held liable for any damage resulting from its authorized or unauthorized use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: SHP & Geodatabase Format_Version_Number: ArcGIS version 9.0 File_Decompression_Technique: .tar.gz -- UNIX gzip-compressed TAR file- use GNU zip and TAR .exe --self extracting Windows ZIP archive--execute the file to extract Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2006/1372 Fees: none Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: USGS Information Services Address: Box 25046 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Resource_Description: Open File Report 2006-1372 Distribution_Liability: None. Standard_Order_Process: Non-digital_Form: Available as printed map sheet with report pamphlet. Order form USGS at the address listed above or see http://mapping.usgs.gov/esic/prices/ordering_info.html for more ordering information. Fees: See http://mapping.usgs.gov/esic/prices for current prices. Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Metadata_Reference_Information: Metadata_Date: 20060914 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Texas Water Science Center - San Antonio Contact_Person: Diana E. Pedraza Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 5563 DeZavala Address: Suite 290 City: San Antonio State_or_Province: Texas Postal_Code: 78249 Country: USA Contact_Voice_Telephone: 210.691.9237 Contact_Facsimile_Telephone: 210.691.9270 Contact_Electronic_Mail_Address: dpedraza@usgs.gov Hours_of_Service: 8:00 am - 4:30 pm CST Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: none Metadata_Use_Constraints: none Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile