Identification_Information: Citation: Citation_Information: Originator: West Virginia Natural Resources Conservation Service (NRCS), State Office, Morgantown, WV Publication_Date: 200810 Publication_Time: 200811 Title: wv_hu12_geo83 Edition: 1 Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Fort Worth, Texas Publisher: U.S. Department of Agriculture (USDA), Natural Resources Conservation Service Online_Linkage: http://www.ncgc.nrcs.usda.gov/products/datasets/watershed Description: Abstract: This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the State of West Virginia. This data set consists of geo-referenced digital data and associated attributes created in accordance with the "FEDERAL STANDARDS FOR DELINEATION OF HYDROLOGIC UNIT BOUNDARIES; Version 2.0, October 1, 2004" (http://www.ncgc.nrcs.usda.gov/products/datasets/watershed/). Polygons are attributed with hydrologic unit codes for 4th level subbasins, 5th level watersheds, 6th level subwatersheds; name; subwatershed size in acres; downstream hydrologic unit; type of watershed; non-contributing areas; and flow modification. Arcs are attributed with the highest hydrologic unit code for each watershed, linesource, and a metadata reference file. Purpose: The Watershed and Subwatershed hydrologic unit boundaries provide a uniquely identified and uniform method of subdividing large drainage areas. The smaller sized 6th level subwatersheds (up to 40,000 acres) are useful for numerous application programs supported by a variety of local, State, and Federal Agencies. This data set is intended to be used as a tool for water-resource management and planning activities, particularly for site-specific and localized studies requiring a level of detail provided by large-scale map information. The dataset will be appended to a larger seamless nationally consistent geospatial database as other states complete their portion of the watershed boundary dataset. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 200810 Currentness_Reference: Publication date of sources Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -82.653 East_Bounding_Coordinate: -77.684 North_Bounding_Coordinate: 40.642 South_Bounding_Coordinate: 37.194 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: HUC Theme_Keyword: Hydrologic Units Theme_Keyword: Hydrologic Unit Code Theme_Keyword: Region Theme_Keyword: Sub-region Theme_Keyword: Basin Theme_Keyword: Sub-basin Theme_Keyword: Subbasin Theme_Keyword: Watershed Theme_Keyword: Watershed Boundaries Theme_Keyword: boundaries Theme_Keyword: Subwatershed Theme_Keyword: WBD Theme_Keyword: Watershed Boundary Dataset Theme_Keyword: West Virginia Watershed Boundary Dataset Theme_Keyword: West Virginia WBD Theme_Keyword: WV-WBD Place: Place_Keyword_Thesaurus: None Place_Keyword: West Virginia Place_Keyword: WV Place_Keyword: USA Place_Keyword: Big Sandy River Place_Keyword: Cacapon River Place_Keyword: Cheat River Place_Keyword: Coal River Place_Keyword: Elk River Place_Keyword: Gauley River Place_Keyword: Greenbrier River Place_Keyword: Guyandotte River Place_Keyword: Kanawha River Place_Keyword: Little Kanawha River Place_Keyword: Monongahela River Place_Keyword: New River Place_Keyword: North Branch Potomac River Place_Keyword: Ohio River Place_Keyword: Potomac River Place_Keyword: Shenandoah River Place_Keyword: South Branch Potomac River Place_Keyword: Tug Fork River Place_Keyword: Tygart Valley River Place_Keyword: Upper James River Place_Keyword: West Fork River Place_Keyword: Youghiogheny River Access_Constraints: None Use_Constraints: The distributor shall not be held liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate uses described in this metadata document. It is strongly recommended that this data is directly acquired from the distributor and not indirectly through other sources which may have changed the data in some way. These data should not be used at scales greater than 1:24,000 for the purpose of identifying hydrographic watershed boundary feature locations in West Virginia. The Natural Resources Conservation Service should be acknowledged as the data source in products derived from these data. The West Virginia Watershed Boundary Dataset is public information and may be interpreted by all organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application of the data. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions they make. The Natural Resources Conservation Service will not perform any evaluations of these maps or purposes related solely to State or local regulatory programs. Photographic or digital enlargement of these maps to scales greater than that at which they were originally delineated can result in misrepresentation of the data. If enlarged, the maps will not include the fine detail that would be appropriate for mapping at the large scale. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data from the source distributor. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service Contact_Person: Debbie Chase, GIS Specialist (Publications) Contact_Address: Address_Type: mailing address Address: 75 High Street, Room 301 City: Morgantown State_or_Province: WV Postal_Code: 26505 Contact_Voice_Telephone: 304.284.7568 Contact_Electronic_Mail_Address: debbie.chase@wv.usda.gov Contact_Instructions: Please e-mail questions and requests. Data_Set_Credit: Funding for the West Virginia Watershed Boundary Dataset (WBD) was provided by the U.S. Geological Survey (USGS) and the USDA Natural Resources Conservation Service. The initial boundaries were delineated by Canaan Valley Institute, Thomas, West Virginia, through a cooperative agreement with WV-NRCS. Representatives from the U.S. Geological Survey, EPA Regions 3 and 5, USGS-UT, PA-NRCS, and WV-NRCS contributed a substantial amount of time and salary towards quality review and updating of the dataset to meet the Federal Standards for Delineation of Hydrologic Unit Boundaries, Version 2.0. Native_Data_Set_Environment: Microsoft Windows XP Professional Version 2002, Service Pack 2; ESRI ArcMap 9.2., Build 1450. Data_Quality_Information: Attribute Accuracy: Attibute_Accuracy_Report: 100% of the attributes were visually verified using the 24K Digital Raster Graphics (DRG’s). The accuracy of this data is dependent on the level of detail of the source material and the interpretation procedures for capturing that source. Logical_Consistency_Report: There are no unclosed polygons, intersections without nodes, or polygons without labels or with more than one label. ArcGIS ‘topology’ rules for polygons were used to identify and correct intersections without nodes, unclosed polygons, and to remove duplicate lines with the same beginning and ending nodes. All sliver polygons were removed either using eliminate, merge, or manually in ArcMap. Completeness_Report: All fields for all polygons in the .pat are attributed. Some polygons in the Ncontrb_a field might have a 0 value. All fields for the lines in the .aat are attributed. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The final West Virginia WBD linework was produced using Digital Raster Graphics as the source map. Data completeness for DRG files reflects content of the source graphic and may therefore be reflected in the completeness and accuracy of the WBD. A Digital Raster Graphic is a scanned image of a U.S. Geological Survey (USGS) standard series topographic map. The horizontal positional accuracy and datum of the DRG matches the accuracy and datum of the source map, with an inherited error of +/- 40 feet according to the USGS National Map Accuracy Standards. It is estimated that any errors detected were less than 10%. It should also be noted that while general rules of hydrology were used (i.e. natural water flow is downhill), the locations of boundaries are still somewhat subjective, as the 1:24,000-scale DRG’s do not always provide enough information for identifying the location of the boundaries. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: N/A Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency Publication_Date: Various Title: National Hydrography Dataset Edition: Flow Validated and Draft Geospatial_Data_Presentation_Form: vector digital data Source_Scale_Denominator: 100000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20000901 Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: NHD Source_Contribution: Linework from Route.drain subclass was centerlined by West Virginia University/Natural Resource Analysis Center and used to enforce the drainage network in the base elevation data (NED). Source_Information: Source_Citation: Citation_Information: Originator: WV GIS Technical Center Originator: U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency Publication_Date: 20020301 Title: WV-NHD Edition: 1 Geospatial_Data_Presentation_Form: vector digital data Source_Scale_Denominator: 100000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20020301 Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: WV-NHD Source_Contribution: The attributes from the Route.rch subclass were used to attribute the 12-digit watershed polygons with NHD information about the receiving stream. Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey, EROS Data Center Publication_Date: 1999 Title: National Elevation Dataset Edition: 1 Geospatial_Data_Presentation_Form: raster digital data Source_Scale_Denominator: 24000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: NED Source_Contribution: Raster digital elevation model was used as the elevation base for the automated delineation. Source_Information: Source_Citation: Citation_Information: Originator: West Virginia Soil Conservation Service (now WV USDA NRCS) Publication_Date: 198506 Title: West Virginia 11-Digit (now termed 10-Digit) Hydrologic Units Geospatial_Data_Presentation_Form: vector digital data Source_Scale_Denominator: 100000 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1985 Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: WV_hu_11 Source_Contribution: reference for 12-digit hydrologic unit delineation Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1994 Title: 1:250,000-scale (8-digit) Hydrologic Units of the United States Geospatial_Data_Presentation_Form: vector digital data Source_Scale_Denominator: 250000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: USGS1 Source_Contribution: reference for 12-digit hydrologic unit delineation Source_Information: Source_Citation: Citation_Information: Originator: West Virginia Geological and Economic Survey Publication_Date: 1968 Title: 1968 State Geologic Map Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: http://wvgis.wvu.edu Source_Scale_Denominator: 250000 Type_of_Source_Media: online Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: WVGeol Source_Contribution: Polygons representing limestone geology were extracted for the purpose of identifying 12-digit watershed polygons that contain a karst element. Source_Information: Source_Citation: Citation_Information: Originator: Canaan Valley Institute and Natural Resources Conservation Service Publication_Date: 20020419 Title: Provisional 14-Digit Watershed Coverage of West Virginia Geospatial_Data_Presentation_Form: vector digital data Source_Scale_Denominator: 24,000 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2001 Ending_Date: 2002 Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: WVSubwProv Source_Contribution: digital hydrologic unit delineation and attribution Source_Information: Source_Citation: Citation_Information: Originator: Canaan Valley Institute and Natural Resources Conservation Service Publication_Date: 2004 Title: West Virginia Watershed Boundary Dataset - DRAFT (10 and 12 Digits) Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: http://wvgis.wvu.edu Source_Scale_Denominator: 24,000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 200410 Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: WVWBD_Draft Source_Contribution: digital hydrologic unit delineation and attribution Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: unknown Title: Digital Raster Graphic Online_Linkage: http://datagateway.nrcs.usda.gov Source_Scale_Denominator: 24000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: Unknown Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: DRG24 Source_Contribution: digital editing of hydrologic unit linework; attribution of polygons Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unknown Title: National Hydrography Dataset Online_Linkage: http://nhd.usgs.gov/data.html Source_Scale_Denominator: 24000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: Unknown Source_Currentness_Reference: watershed delineation Source_Citation_Abbreviation: NHD Source_Contribution: GIS dataset used for reference in verifying watershed boundary delineation and attribution Process Step: Process_Description: The West Virginia WBD began with the Provisional 14-Digit (now termed 12-Digit) Watershed Coverage of West Virginia created by Canaan Valley Institute through a cooperative agreement with WV-NRCS. The NHD centerlined Route.drain subclass and NED data were acquired for the area. ArcGRID was used to process the input drainage network and elevation mosaic into Flow Direction and Flow Accumulation raster datasets (20 meter resolution). Hydrologic enforcement was achieved by artificially raising the elevation data 200 meters while leaving those cells intersecting drainage networks at their original value. Pour point locations based on the 10,000 to 40,000 acreage range and hydrographic features were recorded as a point shapefile for each 8-digit subbasin. The drainage grid was converted to a point coverage and a 10 meter buffer was used to select drainage points as final pour points. Final pour points were converted to a grid and provided with the flow direction grid as input to ArcGRID Watershed command. The resulting grid of watersheds was converted to a polygon using a weed tolerance of 35. Some grouping of small polygons on the study area borders was made according to drainage pattern. Hardcopy maps were produced for each 8-digit subbasin with the draft 12-digit polygons labeled with the generic ID. Staff at WV-NRCS reviewed the draft materials and suggested edits, including the combination of remnant areas along the state border and direct drains. The pour points were adjusted to reflect these suggestions, taking into account the 12-digit delineation boundaries of adjacent states. The Watershed command was again run and the resulting grid was converted to a polygon coverage using a weed tolerance of 35. Polygons (remnant areas) identified for combination were, at this point, unioned with the appropriate neighbors using ArcView 3.2. Polygons that intersected limestone geology were labeled with a karst attribute. Source_Used_Citation_Abbreviation: NHD Source_Used_Citation_Abbreviation: WV-NHD Source_Used_Citation_Abbreviation: NED Source_Used_Citation_Abbreviation: WVGeol Process_Date: 2001-2002 Process_Step: Process_Description: WV-NRCS Staff refined the straight-line Canaan Valley Institute computer-generated coverage of 752 subwatersheds at a 1:12,000 or greater scale over the USGS DRGs. Source_Used_Citation_Abbreviation: WVSubwProv Source_Used_Citation_Abbreviation: USGSDRG Process_Date: 2002 Process_Step: Process_Description: Attribute data as defined in Federal Standards for Delineation of Hydrologic Unit Boundaries were added by USGS staff, and the dataset was published in draft form in October 2004 as wv_HUC_utm17_83_12digit.shp by the West Virginia GIS Technical Center (http://wvgis.wvu.edu), Morgantown, WV. Source_Used_Citation_Abbreviation: WVSubwProv Source_Used_Citation_Abbreviation: USGSDRG Process_Date: 2004 Process_Step: Process_Description: Final editing of the subwatershed linework (generally at a scale of 1:5,000), including edge-matching with the WBD delineations of bordering states, was completed in ArcMap by PA-NRCS, WV-NRCS, EPA-R3, EPA-R5, and USGS-UT staff. This work brought the dataset within the National Standards for Spatial Data Accuracy for 1:24,000 scale. Verification and edits of watershed and subwatershed codes and names were completed by WV-NRCS staff. Source_Used_Citation_Abbreviation: WVWBD_Draft Process_Date: 2008 Process_Step: Process_Description: Imported metadata Source_Used_Citation_Abbreviation: WV_wbd_meta_092908.doc Process_Date: 200809 Process_Step: META_ID: WV02 Process_Description: Updates by USGS Water Science Center, Salt Lake City, Utah. Edits to any of the following: Line Mods, HU_Level, Linesource, DS codes and states. Source_Used_Citation_Abbreviation: Process_Date: 201010 Process_Step: META_ID: WV03 Process_Description: The Line Mods, HU_Level, Linesource, DS codes and states were edited by USGS Water Science Center in Salt Lake City, Utah. Source_Used_Citation_Abbreviation: Process_Date: 201110 Process_Step: META_ID: WV04 - HU_Level updates Process_Description: edits by USGS Water Science Center in Salt Lake City, Utah. Source_Used_Citation_Abbreviation: Process_Date: 201205 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000278 Longitude_Resolution: 0.000278 Geographic_Coordinate_Units: Decimal degrees 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 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: WV_HU12_GEO83.aat Entity_Type_Definition: identifies watershed boundaries Entity_Type_Definition_Source: n/a Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: FNODE# Attribute_Definition: Internal node number for the beginning of an arc (from-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal node number for the end of an arc (to-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal node number for the left polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal node number for the right polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: WV_HU12_GEO83# Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: WV_HU12_GEO83-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: HU_LEVEL Attribute_Definition: The highest hydrologic unit level (smallest number) for the line (arc) represented by the record. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: LINESOURCE Attribute_Definition: The base map source(s) used to delineate at 1:24,000 scale Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: META_ID Attribute_Definition: Metadata ID is a code that identifies which metadata file applies to the arc. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Detailed_Description: Entity_Type: Entity_Type_Label: wv_hu12_geo83.pat Entity_Type_Definition: polygons identify watershed boundaries Entity_Type_Definition_Source: n/a Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: AREA Attribute_Definition: Area of feature in internal units squared. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: wv_hu12_geo83# Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: wv_hu12_geo83-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: HUC_8 Attribute_Definition: A unique 8-digit code from the USGS map series "Hydrologic Unit Maps". The same number was used in every record that pertains to a subwatershed that resides within the same 8-digit sub-basin. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HUC_10 Attribute_Definition: This field provides a unique 10-digit code for each watershed derived from the 8-digit code. This same number was used in every record that pertains to a subwatershed that resides within the same 10-digit watershed. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HUC_12 Attribute_Definition: This field provides a unique 12-digit code for each subwatershed derived from the 10-digit code. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: ACRES Attribute_Definition: Area of subwatershed including non-contributing areas calculated to acres as a whole number, no decimals. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: STATES Attribute_Definition: The "States" field includes the names of all state(s) that the subwatershed falls within. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: NCONTRB_A Attribute_Definition: Drainage areas that do not flow toward the outlet of any hydrologic unit are considered non-contributing. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HU_10_DS Attribute_Definition: The 10-digit code of the 5th level hydrologic unit that is receiving the majority of the flow from the watershed that the 6th level HU falls within. Outlets created by ditching or other artificial drainage were not considered for this field. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HU_10_NAME Attribute_Definition: A unique name for each 5th level hydrologic unit that relates to the major water feature within the polygon or the major water body it contributes to Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HU_10_MOD Attribute_Definition: This field identifies interbasin transfers (IT), dams at outlet (DM), etc. that modify natural overland flow as modifications are identified from most significant to least significant modification(s). Hydrologic units with no modification are marked with NM. Attribute_Definition_Source: Modification by West Virginia Natural Resources Conservation Service to the Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HU_10_TYPE Attribute_Definition: This field identifies the type of watershed. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HU_12_DS Attribute_Definition: The 12-digit code of the 5th level hydrologic unit that is receiving the majority of the flow from the watershed that the 6th level HU falls within. Outlets created by ditching or other artificial drainage were not considered for this field. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HU_12_NAME Attribute_Definition: A unique name for each 6th level hydrologic unit that relates to the major water feature within the polygon or the major water body it contributes to Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HU_12_MOD Attribute_Definition: This field identifies interbasin transfers (IT), dams at outlet (DM), etc. that modify natural overland flow as modifications are identified from most significant to least significant modification(s). Hydrologic units with no modification are marked with NM. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Attribute: Attribute_Label: HU_12_TYPE Attribute_Definition: This field identifies the type of watershed. Attribute_Definition_Source: Federal Standards for Delineation of Hydrologic Unit Boundaries Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Federal Standards for the Delineation of Hydrologic Unit Boundaries Codeset_Source: Please refer to the Entity and Attribute Overview for valid values Overview_Description: Entity_and_Attribute_Overview: This is a description of attributes by field from the Federal Standards for Delineation of Hydrologic Unit Boundaries 1) Polygon attributes Huc_8 : Eight Digit Hydrologic Unit Code - (REQUIRED) A unique 8-digit code from the USGS map series "Hydrologic Unit Maps". The same number was used in every record that pertains to a subwatershed that resides within the same 8-digit sub-basin.Numbers were assigned in an upstream to downstream fashion. Where no downstream/upstream relationship could be determined numbers were assigned in a clockwise fashion. Huc_10: Ten Digit Hydrologic Unit Code - (REQUIRED) This field provides a unique 10-digit code for each watershed. This same number was used in every record that pertains to a subwatershed that resides within the same 10-digit watershed. Numbers were assigned in an upstream to downstream fashion. Where no downstream/upstream relationship could be determined numbers were assigned in a clockwise fashion. Huc_12: Twelve Digit Hydrologic Unit Code - (REQUIRED) This field provides a unique 12-digit code for each subwatershed. Numbers were assigned in an upstream to downstream fashion. Where no downstream/upstream relationship could be determined numbers were assigned in a clockwise fashion. Acres: Acres - (REQUIRED) Area of subwatershed including non-contributing areas calculated to acres as a whole number, no decimals. The "Acres" field was calculated from the "Area" field. States: States - (REQUIRED) The "States" field includes the names of all state(s) that the subwatershed falls within. The 2-digit postal abbreviation in upper case and in alphabetical order was used, separated with a comma. Ncontrb_a: Non-Contributing Area - (FIELD REQUIRED, ATTRIBUTES OPTIONAL) Drainage areas that do not flow toward the outlet of any hydrologic unit are considered non-contributing. If a non-contributing area is on the boundary between two or more hydrologic units, the non-contributing area is associated with the hydrologic unit adjacent to the low point on the boundary. This attribute should be the total of the non-contributing areas within a hydrologic unit calculated in acres. Hu_10_ds: Fifth Level Downstream Hydrologic Unit Code - (FIELD REQUIRED, ATTRIBUTES OPTIONAL) This field has the 10-digit code of the 5th level hydrologic unit that is receiving the majority of the flow from the watershed that the 6th level HU falls within. Outlets created by ditching or other artificial drainage were not considered for this field. If an HU flows into an ocean or the Gulf of Mexico, this field was populated with "OCEAN" and if a HU flows into one of the Great Lakes the term "LAKE" was used. If a HU flows across international borders, "CANADA" or "MEXICO" was used depending on which country the HU drains into. If an HU is a closed basin, then the term "CLOSED BASIN"was used. Hu_10_name: Fifth Level Hydrologic Unit Name - (FIELD REQUIRED, ATTRIBUTES OPTIONAL) This field used officially recognized names only. This field was populated by following the directions in subsection 6.3 "Watershed and Subwatershed Naming Protocol". The name used to attribute the watershed was used only once within a 4th level unit. Hu_10_mod: Fifth Level Hydrologic Unit Modifications - (REQUIRED) This field identifies any type of modifications to natural overland flow that alters the location of the hydrologic unit boundary for a 10-digit watershed. This field shows the most significant to least significant modification(s) to the watershed boundary. One or more of the following abbreviations was used. SC - Stormwater Canal or Drainage Canal ID - Irrigation Ditch IT - Interbasin Transfer BC - Barge Canal or Navigation Canal SD - Stormwater Ditch PD - Pipe Diversion CD - Channel Diversion NC - Noncontributing Area KA - Karst LE - Levee NM - No Modifications OC - Overflow Channel or Flume DM - Dam at outlet or HU boundary GC - General Canal/Ditch PS - Pumping Station DD - Drainage Ditch SI - Siphon AD - Aqueduct RS - Reservoir TF - Transportation Feature (road, railroad, docks etc.) GF - Ground-Water Flow MA - Mining Activity UA - Urban Area GL - Glacier IF - Ice Field OF - Overbank Flow OT - Other Hu_10_type: Fifth Level Hydrologic Unit Type - (REQUIRED) This field was populated with the hydrologic unit type from the list provided that most closely identifies the watershed. S - "Standard" hydrologic unit - Any land HU with drainage flowing to a single outlet point, excluding non-contributing areas. This includes areas or small triangular wedges between adjacent HU's that remain after classic hydrologic units are delineated. Some examples include "true", "classic", "composite", and "remnant" hydrologic units. C - "Closed Basin" hydrologic unit - A drainage area that is 100% non-contributing. This means all surface flow is internal, no overland flow leaves the hydrologic unit through the outlet point. F - "Frontal" hydrologic unit - Areas along the coastline of lakes, oceans, bays, etc. that have more than one outlet. These HU's are predominantly land with some water areas at or near the outlet(s). M - “Multiple Outlet” hydrologic unit An area that has more than one natural outlet; for example, an outlet located on a stream with multiple channels. This does not include frontal or water hydrologic units, hydrologic units with artificial interbasin transfers, drainage outlets through karst or ground-water flow, or outlets that cross a stream with an island. This code should be used only in rare instances. W - "Water" hydrologic unit - Hydrologic units that are predominantly water with adjacent land areas, ex. lake, easturies, harbors. I - "Island" hydrologic unit - A hydrologic unit that is one or more islands and adjacent water out to the toe of the shore face. U - "Unclassified" hydrologic unit - A hydrologic unit that can't be defined or doesn't fit into one of the types that have been listed. Hu_12_ds: Sixth Level Downstream Hydrologic Unit Code - (FIELD REQUIRED, ATTRIBUTES OPTIONAL) This field was populated with the 12-digit code of the 6th level hydrologic unit that is receiving the majority of the flow from the subwatershed. Outlets created by ditching or other artificial drainage were not considered for this field. If a HU flows into an ocean or the Gulf of Mexico it was populate with "OCEAN" and if a HU flows into one of the Great Lakes the term "LAKE" was used. If a HU flows across international borders, "CANADA" or "MEXICO" was used depending on which country the HU drains into. If an HU is a closed basin, this field was populated with the term "CLOSED BASIN". Hu_12_name: Sixth Level Hydrologic Unit Name - (FIELD REQUIRED, ATTRIBUTES OPTIONAL) Officially recognized names were used in this field. This field was populated by following the directions in subsection 6.3 "Watershed and Subwatershed Naming Protocol". The name used to attribute the subwatershed was used only once within a 4th level unit. Hu_12_mod: Sixth Level Hydrologic Unit Modifications - (REQUIRED) This field identifies any type of man-made modification(s) to natural overland flow that alters the location of the hydrologic unit boundary for a 12-digit subwatershed. One or more of the following abbreviations was chosen for this field. SC - Stormwater Canal or Drainage Canal ID - Irrigation Ditch IT - Interbasin Transfer BC - Barge Canal or Navigation Canal SD - Stormwater Ditch PD - Pipe Diversion CD - Channel Diversion NC - Noncontributing Area KA - Karst LE - Levee NM - No Modifications OC - Overflow Channel or Flume DM - Dam at outlet or HU boundary GC - General Canal/Ditch PS - Pumping Station DD - Drainage Ditch SI - Siphon AD - Aqueduct RS - Reservoir TF - Transportation Feature (road, railroad, docks etc.) GF - Ground-Water Flow MA - Mining Activity UA - Urban Area GL - Glacier IF - Ice Field OF - Overbank Flow OT - Other Hu_12_type: Sixth Level Hydrologic Unit Type - (REQUIRED) This field was populated with the hydrologic unit type from the list provided that most closely identifies the subwatershed. S - "Standard" hydrologic unit - Any land HU with drainage flowing to a single outlet point, excluding non-contributing areas. This includes areas or small triangular wedges between adjacent HU's that remain after classic hydrologic units are delineated. Some examples include "true", "classic", "composite", and "remnant" hydrologic units. C - "Closed Basin" hydrologic unit - A drainage area that is 100% non-contributing. This means all surface flow is internal, no overland flow leaves the hydrologic unit through the outlet point. F - "Frontal" hydrologic unit - Areas along the coastline of lakes, oceans, bays, etc. that have more than one outlet. These HU's are predominantly land with some water at or near the outlet(s). M - “Multiple Outlet” hydrologic unit An area that has more than one natural outlet; for example, an outlet located on a stream with multiple channels. This does not include frontal or water hydrologic units, hydrologic units with artificial interbasin transfers, drainage outlets through karst or ground-water flow, or outlets that cross a stream with an island. This code should be used only in rare instances. W - "Water" hydrologic unit - Hydrologic units that are predominantly water with adjacent land areas, ex. lake, easturies. I - "Island" hydrologic unit - A hydrologic unit that is one or more islands and adjacent water out to the toe of the shore face. U - "Unclassified" hydrologic unit - A hydrologic unit that can't be defined or doesn't fit into one of the types that have been listed. 2) Line attributes Hu_level: Hydrologic Unit Level - (REQUIRED) This field provides the means to create cartographically pleasing maps. This field is populated with the highest hydrologic unit level (smallest number) for the line (arc) represented by the record. The attribute was recorded using numbers 1 through 6 representing each level with 1 being the highest and 6 the lowest level. An example would be if a line represents a region, subregion, basin, subbasin, watershed, and subwatershed boundary, then this cell was populated with a 1 (Region). Below is a list of numbers used for each level. Level Digit# Name 1 2 Region 2 4 Subregion 3 6 Basin 4 8 Subbasin 5 10 Watershed 6 12 Subwatershed Linesource: Line Spatial Data Source - (REQUIRED) The Linesource indicates the base map source(s) used to delineate at 1:24,000 scale. The field was populated using one of the standardized code(s) listed below. If more than one code was used, then a comma was used to separate the codes. TOPO24 - Delineation from hardcopy 1:24,000 scale topographic maps TOPO25 - Delineation from hardcopy 1:25,000 topgraphic maps, only Alaska and Caribbean TOPO63 - Delineation from hardcopy 1:63,360 topographic maps, only Alaska and Caribbean DRG24 - Delineation from 1:24,000 scale Digital Raster Graphics DRG25 - Delineation from 1:25,000 Digital Raster Graphics, only Alaska and Caribbean DRG63 - Delineation from 1:63,360 Digital Raster Graphics, only Alaska and Caribbean DEM10 - Derived from 10 meter Digital Elevation Model DEM30 - Derived from 30 meter Digital Elevation Model NED30 - Derived from 30 meter National Elevation Dateset Model EDNA30 - (formally NED-H), derived from 30 meter Elevation Derivatives for National Applications BATH"scale" (ex. BATH24) - Interpreted from NOAA 1:24,000 scale bathymetric data HYPSO"scale" (ex. HYPSO24)- Delineated from 1:24,000 scale contour data ORTHO"scale" (ex. ORTHO12) - Interpreted from 1:12,000 scale Ortho-imagery DEDEM10 - Drainage enforced 10 meter Digital Elevation Model DEDEM30 - Drainage enforced 30 meter Digital Elevation Model GPS - Derived from Global Positioning System LIDAR - Derived from LIDAR IFSAR - Derived from IFSAR data OTH - Other UNK - Unknown All other reference and source maps not listed should be noted in the metadata. Meta_id: Metadata ID Number - (REQUIRED) The Metadata ID is a code that identifies which metadata file applies to the arc. In most cases there is only one metadata file. However, in some cases more than one metadata file was used to identify different groups and/or procedures used to produce the lines. The metadata ID is a 4-character code starting with the 2-letter state postal code, followed by a 2-digit sequence number. For example "OK01", "ID02", etc Entity_and_Attribute_Detail_Citation: Federal Standard for Delineation of Hydrologic Unit Boundaries Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Debbie Chase, GIS Specialist (Publications) Contact_Organization: USDA NRCS Contact_Address: Address_Type: mailing address Address: 75 High Street, Room 301 City: Morgantown State_or_Province: WV Postal_Code: 26505 Country: USA Contact_Voice_Telephone: 304.284.7568 Contact_Electronic_Mail_Address: debbie.chase@wv.usda.gov Contact_Instructions: Please e-mail with data requests. Distribution_Liability: The distributor shall not be held liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate uses described in this metadata document. It is strongly recommended that this data is directly acquired from the distributor and not indirectly through other sources which may have changed the data in some way. These data should not be used at scales greater than 1:24,000 for the purpose of identifying hydrographic watershed boundary feature locations in West Virginia. The Natural Resources Conservation Service makes no claims for the data's suitability for other purposes. The Natural Resources Conservation Service should be acknowledged as the data source in products derived from these data. The West Virginia Watershed Boundary Dataset is public information and may be interpreted by all organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application of the data. Federal, State, or local regulatory bodies are not to reassign to the U.S. Department of Agriculture or the Natural Resources Conservation Service any authority for the decisions they make. The Natural Resources Conservation Service will not perform any evaluations of these maps or purposes related solely to State or local regulatory programs. Photographic or digital enlargement of these maps to scales greater than that at which they were originally delineated can result in misrepresentation of the data. If enlarged, the maps will not include the fine detail that would be appropriate for mapping at the large scale. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data from the source distributor. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARC Export File_Decompression_Technique: none Transfer_Size: 691.9 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://datagateway.nrcs.usda.gov Fees: none Metadata_Reference_Information: Metadata_Date: 200810 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Debbie Chase, GIS Specialist (Publications) Contact_Organization: USDA NRCS Contact_Address: Address_Type: mailing address Address: 75 High Street, Room 301 City: Morgantown State_or_Province: WV Postal_Code: 26505 Country: USA Contact_Voice_Telephone: 304.284.7568 Contact_Electronic_Mail_Address: debbie.chase@wv.usda.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998