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Date Start/Finish 11.10.09/11.13.09 Northing:2158326.3316 Wer"mooring ID:MW-6D
<br /> Drilling Company: Cascade Drilling,LP Easting:6351551.5323
<br /> Drillers Name: --ory Salazar Casing Elevation: 29.98 Clie•..:Chevron Environmental Management -
<br /> Drilling Method: Hollow Stem Auger Company(Chevron)Site ID 309075
<br /> Auger Size: 8-inch,15-inch Borehole Depth: 120.5 feet bgs Location:3978 South Highway 99,Stockton,
<br /> Rig Type: HSA 95 Surface Elevation: 30.45 California
<br /> Sampling Method: California Modified Split Spoon
<br /> Descriptions By: Brett Krehbiel
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<br /> CL E d Well/Boring
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<br /> 0 IY Z r m 0 U Stratigraphic Description Construction
<br /> = Q T d j �j m ares rn
<br /> d > n C to = o
<br /> w -1 E m ai o o d
<br /> o w u) U) m z a C9
<br /> 7.5 11 No recovery.
<br /> 52 87.5' 1.5 10,12, 24 0.0 Brown fine SAND(SP),some Silt,no odor,wet.
<br /> 89" 12 Y" _
<br /> 53 (89'- 1.5 12,13, 26 ;N
<br /> 900.5) 13 AA^A 1/1':M.
<br /> 60 54 90.5' 1.5 12,12, 24 A.A (gA,
<br /> 92' 12 i�t7
<br /> 55 (92'- 0.6 11,12, 24
<br /> 3.5') 12 No recovery.
<br /> 58 93.5' 1.5 11,13, 27 0.0 Brown fine to medium SAND(SP),no odor,wet.
<br /> 9595' 14
<br /> -85 57 (95- 1.5 10,12, 24 fGrout
<br /> 6.5' 12 ,' Grades with coarse SAND. yA,A., (1.105'bps)
<br /> 58 96.5 1.5 11,11, 24 0.0 Fine to medium SAND. i
<br /> 981, 13 Schedule 80 -
<br /> 59 (98- 1.5 11,11, 25 9.5' 11 Grades with coarse SAND. 2-inch casing
<br /> 10060 99.5' 1.5 11,12, 25
<br /> -70 101) 13
<br /> 61 101' 1.5 11,13, 27 0.0 ._.
<br /> 02.5' 14
<br /> 62 02.5 1.5 12,12, 24 Fine SAND,trace Silt.
<br /> to4') 12
<br /> 63 10" 1.5 11,11, 22
<br /> 105 -75 05.5 11
<br /> 64 05.5 1.5 11,12, 24 0.0 Brawn fine SAND(SP),no odor,wet. Hydrated
<br /> 1071 12 bentonite seal
<br /> 65 107' 1.5 11,11, 24 Trace Silt. (105-107'bgs)
<br /> 08.5' 13
<br /> 66 08 5 1.5 10,12, 25
<br /> 110 110) 13 -'
<br /> -80 67 110' 1.5 12,12, 24
<br /> 11.51 12
<br /> 68 11S 1.5 11,2 22 Fine to coarse SAND.
<br /> 11:') 12
<br /> 69 113' 1.5 11,12, 25 #2/12 sand
<br /> 14.5' 13 (107.119'bgs)
<br /> 115 70 145 1.5 15,13, 26 grown medium to coarse SAND(SP),no odor,wet. 0.010 slotted
<br /> -85 11E') 13 _ screen interval
<br /> 71 116' 1,5 10,12, 26 0.0 (109-119'bgs)
<br /> 17,51 14 Grout inside
<br /> 72 175 1.5 10,11, 22
<br /> 1
<br /> 71E''- 11 Brown coarse SAND(SP),no odor,wet. screen interval
<br /> (115.6-119'bgs) --
<br /> 73 20,5 13 1.5 1 25 0.0 Schedule 80
<br /> 120 -90 20.5' 13 2-inch and cap
<br /> End of boring at 120.5 feet bgs. (119-119.5'bgs)
<br /> 125
<br /> -95
<br /> Remarks: HSA=Hollow Stem Auger
<br /> bgs=below ground surface
<br /> '=feet
<br /> n i c Bottom 115.6 to119 feet of screen obstructed by grout.Actual exposed screen interval is
<br /> J07- l l A I S 109 to 115.6 feet bgs.
<br /> Project NumberSO046908.0000 I emp a e:G:\Aproject NV\ H VRON\ 09075\4 Project\ oring Logs\ -6 age: o
<br /> Data File:MW-6D Date 3/4/2010 Brett Krehbiel
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