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l �i Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: Well Number: H WDC 76 Station#11193 HOLLOW STEM AUGER f BH N 4/2104 Exploration Stockton,Ca. SPLITSPOON OS-6 See"Legend to Logs"for Boring Surface Groundwater Depth(ft.): Total Drive Drop sampling method,'i Diam.(in.): Elev.(ft.): SZ 14 FIRST Depth(ft-): wt.(lbs.): Dist.(in.): 1 classifications and laboratory 8 31.0 140 30 testin methods i e. 'o l Well ;. 3 Description E i Construction v ° y i � I 18" HAND ASPHALT TRAFFIC AUGER Silt(ML),black(7.5YR2.5/1),stiff,non-plastic,moist,no odor(0,0,100). RATED TO 5' VAULT, BOX ` . I � l 5 Lean Clay(CL),dark brown(7.5YR3/3),very stiff,low to medium 0 18 plasticity,moist,no odor(0,0,100). 24 t ; 27 i ii is . GROUT 10 .5. 16 Same as above,very stiff,low plasticity,moist,no odor. 0 i EI20 ----------------------------- I 20 < Silty Sand(SM),brown(7.5YR5/4),fine to medium grained sand,wet,no Q odor(0,85,15). 3/4"SCH 80 15 12 0 PVC !j 16 i BLANK 22 CASING i Clayey Sand(SC),brown 7 5YR4/3 ,fine to medium grained sand,low j plasticity,medium dense,saturated,slight odor(0,60,40). it GROUT 20 10 22 I I 16 i ` E1 24 i BENTONI Silt(ML),brown(7.5Y5/4),hard,wet,slight hydrocarbon odor,(0,0,100). SEAL I� The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or samples obtained during drilling. Predominant material types shown on the log may contain different materials and the change from one predominant material type to another could be different than indicated. Descri tions on this log apply only at the specific location at the time of drilling and may not be representative of subsurface conditio ns or times. i ProjectNo. 77BP.50193. Date July 2004 {ate C�, Log of WellC/ { K CAVAN MAN OS WELL INSTALL 4-04.GPJ Figure IIA6"_ez( I LOG OF BOREHOLE a No.7572 `'• sf evp 1131 _�� (sheet i of 2) ;