Name: Elevation of Aquifer Base (ft), 2016

Display Field: Id

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: This dataset represents the base of the Elk City Sandstone aquifer, which is defined as the base of the Elk City Sandstone. The elevation of the aquifer base ranges from 1700-2200 feet above mean sea level. The interpretation of the base of the aquifer is based on analysis of lithologic data obtained from groundwater well completion reports submitted to the OWRB by licensed well drillers. Control points with zero depth were added along the base of the Elk City Sandstone as shown on surficial geologic maps published by the Oklahoma Geologic Survey (OGS). The combined depth information was subtracted from a 10-meter Digital Elevation Model (DEM) of the study area’s land surface. The resulting elevation dataset was used with the Kriging tool in ArcMap to interpolate the base of the aquifer across the study area. The raster was then converted to a series of contours, using the contour tool in ArcMap, which were then smoothed and manually adjusted by OWRB staff for clarity based on professional judgement. This dataset was created as a product of the Elk City Sandstone aquifer hydrologic investigation and is included here for informational purposes only.The contours were made from the base elevation raster (Base_EC_20180201_JES) in ArcMap using the Contour tool.

Definition Expression: N/A

Copyright Text: OWRB - Technical Studies Section

Default Visibility: false

MaxRecordCount: 1000

Supported Query Formats: JSON, AMF, geoJSON

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Extent:

XMin: -352321.81315519416
YMin: 1356036.2336
XMax: -278848.0311463446
YMax: 1395243.6338999998
Spatial Reference: 102039  (102039)

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Advanced Query Capabilities:

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Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID , alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry , alias: Shape )
• Id ( type: esriFieldTypeInteger , alias: Id )
• Contour ( type: esriFieldTypeDouble , alias: Contour )
• Shape_Length ( type: esriFieldTypeDouble , alias: Shape_Length )

Supported Operations:   Query   Generate Renderer   Return Updates

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