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GCS_North_American_1983
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ItemDescription
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The elevation of the base of the Elk City Sandstone aquifer, relative to mean sea level, and expressed as a series of contour lines with an interval of 50 feet.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>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. </SPAN></P></DIV></DIV></DIV>
OWRB - Technical Studies Section
Elk City sandstone aquifer
base elevation
base contour map
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>The data represent the results of data collection and/or processing for the specific OWRB activity or purpose described above. As such, the data are valid only for their use, content, time, and accuracy specifications determined or intended by, or acceptable to, the OWRB. These data are not guaranteed to be useable, timely, accurate, or complete. The user is responsible for any use of these data other than their use by the OWRB, and for the results of any application of the data for other than the purpose intended by the OWRB. Although these data have been processed successfully on a computer system at the OWRB, NEITHER THE STATE OF OKLAHOMA NOR THE OWRB NOR ANY OTHER AGENCY THEREOF, NOR ANY OF THEIR EMPLOYEES, CONTRACTORS, OR SUBCONTRACTORS, MAKE ANY WARRANTY, EXPRESS OR IMPLIED, NOR ASSUME ANY LEGAL LIABILITY OR RESPONSIBILITY FOR OR AS TO THE ACCURACY, COMPLETENESS, USEFULNESS OR MERCHANTABILITY OF ANY DATUM, SOFTWARE, INFORMATION, APPARATUS, PRODUCT, OR PROCESS DISCLOSED, NOR REPRESENT THAT ITS USE WOULD NOT INFRINGE ON PRIVATELY OWNED RIGHTS. NOR SHALL THE ACT OF DISTRIBUTION CONSTITUTE ANY SUCH WARRANTY. THIS DISCLAIMER APPLIES BOTH TO INDIVIDUAL USE OF THE DATA AND AGGREGATE USE WITH OTHER DATA. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences.</SPAN></P></DIV></DIV>
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Length of feature in internal units.
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Positive real numbers that are automatically generated.
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