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Project Flag City Chevron Project No AGE-NC-96-0232 BORING NO <br /> Site Address 6421 Capital Avenue Total Depth 50 ft MW-6 <br /> Lodi, California Date 29 June 1998 <br /> Dnlling Co Central Valley Drilling Logged by T Cuellar Page 2 of 2 <br /> Dnll Rig Type B-53 Mobile Drill Rig Reviewed by N Henderson <br /> Go <br /> C" 0 Lithologzt Description <br /> ' 'i <br /> _ MW6-45 00 6-7-9 SM Pale brown and red-brown, very moist, silty, medium dense fine <br /> SAND About 70%fine sand, about 30% nonplastic fines No <br /> HC odor <br /> Pale brown,very moist,medium dense fine to medium SAND <br /> 50— W6-50 00 8-10-11 SP About 40%fine sand, about 40%medium sand <br /> – Notes. <br /> Boring MW-6 terminated at a total depth of 50 feet below surface <br /> – grade(bsg) MW-6 dual completed as a ground water monitoring <br /> well utilizing two-inch diameter PVC casing Saturated soil <br /> – encountered at approximately 17 feet bsg <br /> – AS-BUILT CONSTRUCTION DETAILS, UW-6 <br /> 60— Interval A <br /> – Screen Interval 7 to 27 feet bsg <br /> Blank Interval 0 5 to 7 feet bsg. <br /> Sand interval 5 to 27 feet bsg <br /> Bentonite Plug 3 to 5 feet bsg <br /> Grout Interval l to 3feet bsg <br /> – Interval B <br /> 70-- Screen Interval 43 to 48 feet bsg <br /> Blank Interval 0 5 to 43 feet bsg <br /> – Sand Interval 40 to 50 feet bsg <br /> Bentonite Plug 27 to 40 feet bsg <br /> 80— <br /> Advanced <br /> GeoEnvironmental, Inc. <br /> L 1AMIPR016 RING-1lFLAGCI-110232MW6 SAM 08126/98 0 12 56 PM <br />