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Status: 1D_tm2.gif (65901 bytes) Completed

Latitude/Longitude (Datum NAD-83): 
36o 40' 15.440" North
116o 26' 55.593" West  

Legal Description:
Township 15S, Range 49E    
Section 3 SW 1/4 SE 1/4

Elevation (Datum NGVD-29): 
819.41 meters AMSL (2,688.35 feet) GPS

Access:  From the intersection of Highway 95 and Highway 373, go west on Highway 95 approximately 0.2 miles to the intersection of Highway 95 and the Gate 510 road, go north 1.8 miles to the Powerline Road, turn left (west) just south of the 510 gate, continue 2.5 miles along Powerline Road.

Purpose:  NC-EWDP-19PB was designed to serve as a test borehole of the sonic coring method.  The upper 350 feet of the borehole was drilled using conventional rotary drilling methods and cased off to provide access for core drilling. The lower section was continuously cored using the sonic coring method in the saturated zone form 350 to 634 feet below ground surface (bgs).  The borehole serves as a dual completion piezometer well with screens at depths corresponding to the upper two screens of other multiple-screen wells located at the Alluvial Tracer Complex.  Primary technical objectives include: 1) collect and geologically log continuous sonic core samples from approximately 350 to 634 feet bgs and run borehole geophysical logs to approximately 634 feet; 2) run laboratory tests of textural layers within the core; 3) use these data to define the stratigraphic sequence and to better characterize geologic structural boundaries immediately south of the proposed repository; and 4) provide water level and water chemistry data.

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Last Updated on July 23, 2006