Identification_Information: Citation: Citation_Information: Originator: Steven H. Douglas Publication_Date: 20170828 Title: DRASTIC model results for Upper Floridan aquifer vulnerability to Bromacil and Ethylene Dibromide Geospatial_Data_Presentation_Form: raster digital data-set Series_Information: Series_Name: U.S. Geological Survey data release Issue_Identification: doi:10.5066/F7S46QTV Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F7S46QTV Description: Abstract: This dataset includes DRASTIC (Aller and others, 1987) model results for Upper Floridan aquifer vulnerability to contamination. The DRASTIC value serves as an intrinsic vulnerability index for assessing the transport of contaminants from the surface. The DRASTIC model setup requires the input of raster data for depth to groundwater, aquifer recharge, aquifer media, soil media, topography, vadose zone media, and aquifer hydraulic conductivity. These variables were entered into the DRASTIC equation using the raster calculator tool in ArcGIS. Purpose: This dataset was generated from the DRASTIC model to test the model's ability to indicate intrinsic groundwater vulnerability in the Southwest Florida Water Management District (SWFWMD). Supplemental_Information: A downloadable version of the final dataset is provided in GeoTIFF file format with 10-meter resolution. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2017 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -83.252177 East_Bounding_Coordinate: -80.829948 North_Bounding_Coordinate: 29.695895 South_Bounding_Coordinate: 26.572896 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: DRASTIC Theme_Keyword: intrinsic vulnerability Theme_Keyword: pesticide Theme_Keyword: aquifer Theme_Keyword: raster dataset Theme_Keyword: Florida Theme_Keyword: Southwest Florida Water Management District Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: University of South Florida St. Petersburg Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: inlandWaters Theme_Keyword: environment Theme_Keyword: health Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: geology Theme_Keyword: groundwater Theme_Keyword: water quality Theme_Keyword: water resources Theme_Keyword: hydrogeology Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Cherokee Nation Technologies contracted to the U.S. Geological Survey Contact_Person: Steven Douglas Contact_Address: Address_Type: physical and mailing address Address: 600 4th St S City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Contact_Voice_Telephone: 727-502-8134 Contact_Electronic_Mail_Address: sdouglas@usgs.gov Data_Set_Credit: U.S. Geological Survey and University of South Florida St. Petersburg Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service pack 1; Esri ArcGIS 10.2 Cross_Reference: Citation_Information: Originator: Aller, L., Bennet, T., Lehr, J. H., Petty, R., and Hackett, G. Publication_Date: 198705 Title: DRASTIC: A standardized system to evaluate groundwater pollution potential using hydrogeologic settings Publication_Information: Publication_Place: Dublin, OH Publisher: National Water Well Association, U.S. Environmental Protection Agency Online_Linkage: http://rdn.bc.ca/cms/wpattachments/wpID3175atID5999.pdf or https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=20007KU4.txt Cross_Reference: Citation_Information: Originator: Douglas, S., Dixon, B., and Griffin, D. Publication_Date: Unknown Title: Assessing intrinsic and specific vulnerability models ability to indicate groundwater vulnerability to groups of similar pesticides: a comparative study Publication_Information: Publication_Place: Philadelphia, PA Publisher: Physical Geography Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted. Logical_Consistency_Report: Raster values were checked for consistency with expected values. Completeness_Report: Data-set is considered complete for the information presented, as described in the abstract. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: No formal horizontal positional accuracy tests were conducted. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: A formal accuracy assessment of the vertical positional information in the data-set has either not been conducted, or is not applicable. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 20111117 Title: Potentiometric Surface of the Upper Floridan Aquifer in Florida and in Parts of Georgia, South Carolina, and Alabama, May – June 2010 Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Orlando, FL Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/sim/3182/data/Potmap_wells_May2010.zip Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 201005 Ending_Date: 201006 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: SIM3182 Source_Contribution: Potentiometric surface was used as the depth to groundwater variable in the DRASTIC model equation. Source_Information: Source_Citation: Citation_Information: Originator: Mapping and GIS Section, Southwest Florida Water Management District Publication_Date: 2002 Title: Aquifer Recharge/Discharge data from USGS 2002 Model Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: 2379 Broad Street, Brooksville, FL 34604-6899 Publisher: Southwest Florida Water Management District Online_Linkage: http://ftp.swfwmd.state.fl.us/pub/gisdata/physical_sparse/recharge2002.exe Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: SWFWMD Source_Contribution: Aquifer recharge/discharge was used as the recharge variable in the DRASTIC model equation. Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 200310 Title: Principal Aquifers of the 48 Conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://water.usgs.gov/GIS/dsdl/aquifers_us.zip Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1989 Ending_Date: 2001 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS HA-730 Source_Contribution: The aquifer rock type field was used as the aquifer media variable in the DRASTIC model equation. For additional information, please see the metadata for the data file available here: https://water.usgs.gov/GIS/metadata/usgswrd/XML/aquifers_us.xml. Source_Information: Source_Citation: Citation_Information: Originator: U.S. Department of Agriculture, Natural Resources Conservation Service Publication_Date: 2015 Title: USDA-NRCS Soil Survey Geographic (SSURGO 2.2): texdesc and ksat_r Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Fort Worth, TX Publisher: USDA/NRCS - National Geospatial Center of Excellence Online_Linkage: https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053627 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2015 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: SSURGO Source_Contribution: Texdesc was used as the soil media variable and ksat_r as the saturated hydraulic conductivity variable in the DRASTIC model equation. Source_Information: Source_Citation: Citation_Information: Originator: Florida Geographic Data Library Publication_Date: 201301 Title: Florida Digital Elevation Model (DEM) Mosaic - 5-Meter Cell Size - Elevation Units Meters (FGDC) Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Gainesville, FL Publisher: University of Florida GeoPlan Center Online_Linkage: ftp://ftp.fgdl.org/pub/state/flidar_mosaic_ft.zip Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20130114 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: FLIDAR_MOSAIC_M Source_Contribution: The 5-meter DEM was used as the topography variable in the DRASTIC model equation. Source_Information: Source_Citation: Citation_Information: Originator: Florida Geographic Data Library Publication_Date: 2001 Title: Geology (Environmental) Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Gainesville, FL Publisher: Florida Geographic Data Library Online_Linkage: ftp://ftp.fgdl.org/pub/state/fdepgeo.zip Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2001 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: fdepgeo Source_Contribution: The CATEGORY field was used as the Impact of the Vadose Zone variable in the DRASTIC model equation Process_Step: Process_Description: Tabular and map Soil Survey Geographic Database SSURGO data for Florida were downloaded through the U.S. Department of Agriculture (USDA) Geospatial Data Gateway. Descriptions for the SSURGO classes are available at the Soil Survey website http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ref/?cid=nrcs142p2_054253. SSURGO metadata is available at: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/home/?cid=nrcs142p2_053631. The polygon SSURGO shapefiles were joined to the tabular files within the file geodatabase. The first join to be made uses the “mukey” field as the common identifier to join the cokey field from the “component” table. The second join to be made uses the cokey field as the common identifier to join the ksat_r (Saturated Hydraulic Conductivity) field from the “CHorizon” table. Finally, the chtexturegrp join was made using the chorizon field as the common identifier to join the texdesc (Texture) field. The texture and rock type variables are expressed as descriptive text. They were reclassified as numerical values based on the methods described by Aller and others (1987). The final polygon shapefile was converted to a 10-meter raster GeoTiffs using the Polygon to Raster tool. Process_Date: 2015 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Steven H. Douglas Contact_Organization: Cherokee Nation Technologies contracted to the U.S. Geological Survey Contact_Address: Address_Type: Physical and mailing Address: 600 4th St S City: St Petersburg State_or_Province: FL Postal_Code: 33701 Contact_Voice_Telephone: 727-502-8134 Contact_Electronic_Mail_Address: sdouglas@usgs.gov Process_Step: Process_Description: SWFWMD Recharge converted to inches per year based on Aller and others (1987). Process_Date: 2015 Process_Step: Process_Description: Aquifer media reclassified based on Aller and others (1987). Process_Date: 2015 Process_Step: Process_Description: Topography converted to percent slope using the Slope tool in the Surface toolbox in ArcGIS based on Aller and others (1987). Process_Date: 2015 Process_Step: Process_Description: Impact of the vadose zone reclassified based on Aller and others (1987). Process_Date: 2015 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 19854 Column_Count: 32323 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: USA_Contiguous_Albers_Equal_Area_Conic_USGS_version Albers_Conical_Equal_Area: Standard_Parallel: 29.5 Standard_Parallel: 45.5 Longitude_of_Central_Meridian: -96.0 Latitude_of_Projection_Origin: 23.0 False_Easting: 0.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 10.0 Ordinate_Resolution: 10.0 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257222101 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: drastic_model.tif Entity_Type_Definition: GeoTIFF file that includes DRASTIC model results for the Upper Floridan aquifer vulnerability to contamination. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: OID Attribute_Definition: Internal feature number. Sequential unique whole numbers that are automatically generated. Attribute_Definition_Source: Esri Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 4 Attribute: Attribute_Label: Value Attribute_Definition: DRASTIC reclassified vulnerability class values. 1 = Very Low Vulnerability, 2 = Low, 3 = Medium, 4 = High, 5 = Very High. Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Very Low Vulnerability Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Low Vulnerability Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: Medium Vulnerability Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: High Vulnerability Enumerated_Domain_Value_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 5 Enumerated_Domain_Value_Definition: Very High Vulnerability Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: Count Attribute_Definition: Number of cells Attribute_Definition_Source: Esri Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 21366747 Range_Domain_Maximum: 57871306 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Cherokee Nation Technologies contracted to the U.S. Geological Survey Contact_Person: Steven Douglas Contact_Address: Address_Type: physical and mailing Address: 600 4th St S City: St Petersburg State_or_Province: FL Postal_Code: 33701 Contact_Voice_Telephone: 727-502-8134 Contact_Electronic_Mail_Address: sdouglas@usgs.gov Distribution_Liability: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. The data have been approved for release and publication by the U.S. Geological Survey (USGS). Although the data have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, the data are released on the condition that neither the USGS nor the U.S. Government may be held liable for any damages resulting from authorized or unauthorized use. Although the data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein. Users of the data are advised to read all metadata and associated documentation thoroughly to understand appropriate use and data limitations. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: GeoTIFF Format_Version_Date: 2017 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-F7S46QTV/data/AF_model.zip Fees: None. Metadata_Reference_Information: Metadata_Date: 20170828 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Cherokee Nation Technologies contracted to the U.S. Geological Survey Contact_Person: Steven H. Douglas Contact_Address: Address_Type: physical and mailing Address: 600 4th St S City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Contact_Voice_Telephone: 727-502-8134 Contact_Electronic_Mail_Address: sdouglas@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time