NC-EWDP-3S SITE SUMMARY
36° 40' 53.613" North
116° 32' 17.179" West
Township 15S Range 48E
Section 2 SW 1/4 SW 1/4 1/4
798.27 meters AMSL (2619.0 feet +/-) GPS
Access: Take Highway 95 north from the
Lathrop Wells Jct. 7.5 miles to the gate on the north side of the Highway.
Take the gravel road 0.15 miles north; turn east and follow the tire tracks.
Purpose: 1) provide lithologic samples of deposits; 2) define valley-fill
stratigraphic sequence and groundwater flow paths down-gradient of proposed repository;
and 3) provide water level and water chemistry data.
NC-EWDP-3S is located along a key groundwater pathway
between Crater Flat and the Amargosa Desert. The well was completed as a satellite
to NC-EWDP-3D to provide water level and water chemistry data from the upper Tertiary
volcanic aquifers. The well has three monitoring zones. The upper zone is in
the upper Tertiary volcanic rocks in a fractured, bedded tuff. The middle zone is
completed deeper in the same unit and the lower zone is completed in a thick sequence of
ash fall tuffs. Water samples were collected for analysis.