Name: HUC12_ICR
Display Field: HU_12_NAME
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The Watershed Boundary Dataset (WBD) defines the areal extent of surface water drainage to a point, accounting for all land and surface areas. Watershed Boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. The intent of defining Hydrologic Units (HU) for the Watershed Boundary Dataset is to establish a base-line drainage boundary framework, accounting for all land and surface areas. At a minimum, the WBD is being delineated and georeferenced to the USGS 1:24,000 scale topographic base map meeting National Map Accuracy Standards (NMAS). Hydrologic units are given a Hydrologic Unit Code (HUC). For example, a hydrologic region has a 2-digit HUC. A HUC describes where the unit is in the country and the level of the unit.
"A hydrologic unit is a drainage area delineated to nest in a multi-level, hierarchical drainage system. Its boundaries are defined by hydrographic and topographic criteria that delineate an area of land upstream from a specific point on a river, stream or similar surface waters. A hydrologic unit can accept surface water directly from upstream drainage areas, and indirectly from associated surface areas such as remnant, non-contributing, and diversions to form a drainage area with single or multiple outlet points. Hydrologic units are only synonymous with classic watersheds when their boundaries include all the source area contributing surface water to a single defined outlet point."
See https://nhd.usgs.gov/wbd.html for more information about the Water Boundary Dataset.
Copyright Text: USGS; NRCS; C Olsen; Knox County Stormwater
Min. Scale: 0
Max. Scale: 0
Default Visibility: true
Max Record Count: 2000
Supported query Formats: JSON, geoJSON, PBF
Use Standardized Queries: True
Extent:
XMin: 2479445.69092606
YMin: 536643.662337467
XMax: 2663399.6432274
YMax: 680822.983230218
Spatial Reference: 2915 (2915)
Drawing Info:
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HasZ: false
HasM: false
Has Attachments: false
Has Geometry Properties: true
HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Object ID Field: OBJECTID
Unique ID Field:
IsSystemMaintained : True
Global ID Field:
Type ID Field:
Fields:
- OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
- AREA_ACRES (type: esriFieldTypeDouble, alias: AREA_ACRES, SQL Type: sqlTypeOther, nullable: true, editable: true)
- AREA_SQKM (type: esriFieldTypeDouble, alias: AREA_SQKM, SQL Type: sqlTypeOther, nullable: true, editable: true)
- STATES (type: esriFieldTypeString, alias: STATES, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
- HUC_12 (type: esriFieldTypeString, alias: HUC_12, SQL Type: sqlTypeOther, length: 12, nullable: true, editable: true)
- HU_12_NAME (type: esriFieldTypeString, alias: HU_12_NAME, SQL Type: sqlTypeOther, length: 120, nullable: true, editable: true)
- HU_12_TYPE (type: esriFieldTypeString, alias: HU_12_Type, SQL Type: sqlTypeOther, length: 1, nullable: true, editable: true)
- HU_12_MOD (type: esriFieldTypeString, alias: HU_12_MOD, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
- TNMID (type: esriFieldTypeString, alias: TNMID, SQL Type: sqlTypeOther, length: 40, nullable: true, editable: true)
- TIA_Total_Area (type: esriFieldTypeDouble, alias: TIA_Total_Area, SQL Type: sqlTypeOther, nullable: true, editable: true)
- TIA_Total_Percent (type: esriFieldTypeSingle, alias: TIA_Total_Percent, SQL Type: sqlTypeOther, nullable: true, editable: true)
- TIA_NotTreated_Area (type: esriFieldTypeDouble, alias: TIA_NotTreated_Area, SQL Type: sqlTypeOther, nullable: true, editable: true)
- TIA_NotTreated_Percent (type: esriFieldTypeSingle, alias: TIA_NotTreated_Percent, SQL Type: sqlTypeOther, nullable: true, editable: true)
- TIA_Treated_Area (type: esriFieldTypeDouble, alias: TIA_Treated_Area, SQL Type: sqlTypeOther, nullable: true, editable: true)
- TIA_Treated_Percent (type: esriFieldTypeSingle, alias: TIA_Treated_Percent, SQL Type: sqlTypeOther, nullable: true, editable: true)
- Pervious_Area (type: esriFieldTypeDouble, alias: Pervious_Area, SQL Type: sqlTypeOther, nullable: true, editable: true)
- ICR_Percent (type: esriFieldTypeDouble, alias: ICR_Percent, SQL Type: sqlTypeOther, nullable: true, editable: true)
- Grade (type: esriFieldTypeString, alias: Grade, SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
- Parameter_Score (type: esriFieldTypeSmallInteger, alias: Parameter_Score, SQL Type: sqlTypeOther, nullable: true, editable: true)
- Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
- Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)
Templates:
Name: HUC12_ICR
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:
Is Data Versioned: false
Has Contingent Values: false
Supports Rollback On Failure Parameter: true
Last Edit Date: 11/21/2023 7:13:51 PM
Schema Last Edit Date: 11/21/2023 7:13:51 PM
Data Last Edit Date: 11/21/2023 7:13:51 PM
Supported Operations:
Query
Query Pivot
Query Top Features
Query Analytic
Query Bins
Generate Renderer
Validate SQL
Get Estimates
ConvertFormat