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Date Start/Finish: 11.11.09/11.12.09 Northing:2158331.1053 We' 'iring ID:MW-6 <br /> r Drilling Company: Cascade Drilling,LP fir/ Easting:6351548.4211 ��,r <br /> Driller's Name: Tory Salazar Casing Elevation: 29.70 Clien-F Chevron Environmental Managemnet <br /> Drilling Method: Hollow Stem Auger Company(Chevron)Site ID 309075 <br /> Auger Size: 8-inch Borehole Depth: 75 feet bgs Location:3978 South Highway 99,Stockton, <br /> Rig Type: HSA 95 Surface Elevation: 30.49 California <br /> Sampling Method: California Modified Split Spoon <br /> Descriptions By: Brett Krehbiel <br /> ►.r <br /> E <br /> $' a <br /> E _ a <br /> c <br /> 3 <br /> Z T a) � Well/Boring <br /> Zc S v &a n o <br /> c Z 3 v o Stratigraphic Description Construction <br /> a > n v 3 > = o <br /> UJ E E o <br /> LU w N fn m z a 0 <br /> V <br /> Drill to 60 feet bgs.For soil stratigraphy please refer to MW-6D. <br /> 4 45 -15 <br /> h - � <br /> Grout <br /> 1r (1-51.5'bgs) <br /> Schedule 80 <br /> 2-Inch casing <br /> 50 -20 (0-55'bgs) <br /> Hydrated <br /> bentonfte seal <br /> r (51.5-53.5'bgs) <br /> 55 <br /> -25 <br /> V <br /> 60 -30 1 (60'- 1.5 9,9, 18 0.0 - <br /> 1.5' g - Brown SILT(ML),trace fine Sand,no odor,dry. <br /> 2 61.5' 1.5 8,9, 18 0.0 - Brown fine SAND and SILT(SM),no odor,dry. 92/12 sand <br /> v 63') 9 _ (53.5-75'bgs) <br /> 3 (63'- 1.5 7,8, 16 0.0 0.010 slotted <br /> .5') 8 screen interval <br /> 65 4 64.5' 1.5 7,7, 14 0.0 Brown CLAY(CL),some Sift,no odor,moist. (55-70'bgs) <br /> -35 66') 7 <br /> y 5 (66'- 1.5 6,6, 14 0.0 Brown fine SAND and SILT(SM),trace Clay,no odor,moist. <br /> 67.5') 8 <br /> 6 67.5' 1.5 6.71 14 Brown fine to medium SAND and SILT(SM),trace Clay,no odor,moist. <br /> 69') 7 <br /> 7 (69'- 1.5 6,7, 15 0.0 - <br /> 70 0.5' 8 Brown SILT(ML),some fine Sand,trace Clay,no odor,moist. Schedule 80 <br /> 2-inch end cap <br /> ✓ -40 8 70.5' 1.5 7,7, 15 0.0 -72') 8 Brown SILT(ML),some fine Sand,no odor,moist. (69.5-70'bgs) <br /> L109 <br /> (72'- 1.5 6,8, 16 0.0 Brown fine to coarse SAND(SW),no odor,wet. <br /> 3.5' 8 <br /> 73.5' 1.5 6,7, 15 0.0 - Brown SILT(ML),some fine Sand,no odor,wet. <br /> 75 75) 8 <br /> -45 End of boring at 75 feet bgs. <br /> b� <br /> (wi <br /> r"' Remarks: HSA=Hollow Stem Auger <br /> bgs=below ground surface <br /> I ARCADIS =feet <br /> ,�u:r�r,��of fjt .r., <br /> 64Project um er 0 46908.0000emp a e:G: project\ENV\C ON\30 075\4 Project Boring Logs\MW 6 age- of 2 <br /> Data File:MW-6 Date3/4/2010 Brett KrehbieI <br /> �.r <br />