Name: Subwatershed Basins (HUC 12)

Display Field: Name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" “Standard” (http://pubs.usgs.gov/tm/11/a3/). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit (6th level) for the entire United States. Some areas may also include additional subdivisions representing the 14- and 16-digit hydrologic unit (HU). At a minimum, the HUs are delineated at 1:24,000-scale in the conterminous United States, 1:25,000-scale in Hawaii, Pacific basin and the Caribbean, and 1:63,360-scale in Alaska, meeting the National Map Accuracy Standards (NMAS). Higher resolution boundaries are being developed where partners and data exist and will be incorporated back into the WBD. WBD data are delivered as a dataset of polygons and corresponding lines that define the boundary of the polygon. WBD polygon attributes include hydrologic unit codes (HUC), size (in the form of acres and square kilometers), name, downstream hydrologic unit code, type of watershed, non-contributing areas, and flow modifications. The HUC describes where the unit is in the country and the level of the unit. WBD line attributes contain the highest level of hydrologic unit for each boundary, line source information and flow modifications.

Copyright Text: Funding for the Watershed Boundary Dataset (WBD) was provided by the USDA-NRCS, USGS and EPA along with other federal, state and local agenciesies. Representatives from many agencies contributed a substantial amount of time and salary towards quality review and updating of the dataset in order to meet the WBD Standards. Acknowledgment of the originating agencies would be appreciated in products derived from these data. See dataset specific metadata for further information

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 500000

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -90.6407439009646
YMin: 34.945254792729344
XMax: -81.15001900898123
YMax: 40.03943623974158
Spatial Reference: 4326  (4326)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [0, 0, 0, 0]
Outline:
Style: esriSLSDash
Color: [189, 189, 197, 255]
Width: 1
Label: Basin Boundary
Description: N/A
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: true
Supports Sql Format: false
Supports Query Analytic: false
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• TNMID ( type: esriFieldTypeString, alias: TNMID, length: 40 )
• MetaSourceID ( type: esriFieldTypeString, alias: MetaSourceID, length: 40 )
• SourceDataDesc ( type: esriFieldTypeString, alias: SourceDataDesc, length: 100 )
• SourceOriginator ( type: esriFieldTypeString, alias: SourceOriginator, length: 130 )
• SourceFeatureID ( type: esriFieldTypeString, alias: SourceFeatureID, length: 40 )
• LoadDate ( type: esriFieldTypeDate, alias: LoadDate, length: 8 )
• GNIS_ID ( type: esriFieldTypeInteger, alias: GNIS_ID )
• AreaAcres ( type: esriFieldTypeDouble, alias: AreaAcres )
• AreaSqKm ( type: esriFieldTypeDouble, alias: AreaSqKm )
• States ( type: esriFieldTypeString, alias: States, length: 50 )
• HUC12 ( type: esriFieldTypeString, alias: HUC12, length: 12 )
• Name ( type: esriFieldTypeString, alias: Name, length: 120 )
• HUType ( type: esriFieldTypeString, alias: HUType, length: 255 )
• HUMod ( type: esriFieldTypeString, alias: HUMod, length: 30 )
• ToHUC ( type: esriFieldTypeString, alias: ToHUC, length: 16 )
• NonContributingAreaAcres ( type: esriFieldTypeDouble, alias: NonContributingAreaAcres )
• NonContributingAreaSqKm ( type: esriFieldTypeDouble, alias: NonContributingAreaSqKm )
• Shape_Length ( type: esriFieldTypeDouble, alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )
• HUC10 ( type: esriFieldTypeString, alias: HUC10, length: 10 )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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