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Project: AASF Washrack Boring Investigation Boring: MW-6(SB-03) Pg. 1 of 2 <br /> Drilling Cc: Precision Sampling Drilling Method: Hollow-Stem Auger Date Started: 3/30/11 <br /> Location: 2000 Stimson Rd,Stockton,CA Sampler/Drop: Split Spoon/30" Date Completed: 3/30111 <br /> Logged by: DBS Reviewed by: <br /> Surface Elev.: Water Depths: Q ATD 35 1 At Completion 33 <br /> } <br /> ESTIMATE <br /> LU <br /> LL <br /> 12"Flush Mount w 00 LU <br /> u %OF <br /> Traffic Rated Vault _ w a- a_ F v>m <br /> �_ <br /> w Box and Locking Well j � Q Q <O w U 2 O <br /> p Cap z o n. cn (7 OJ DESCRIPTION 0 rn GR SA FI 2 <br /> Gravelly Fat Clay(CH);very dark gray(10YR <br /> 3/1),moist. No hydrocarbon odor or staining. <br /> Sandy Lean Cray(CL);brown(10YR 5/3),slightly <br /> moist,firm;clay with±30%fine to medium sand, <br /> medium plasticity,pinhole porosity(<1%). No <br /> hydrocarbon odor or staining. <br /> 5 80 gallons grout(12- 15 100 0.0 5 CL <br /> 47 Ib.bags) <br /> 10 ___ 10 <br /> 12 22 0.0 Poorly Graded Sand with Clay(SP);dark SP <br /> yellowish brown(10YR 4/6),sligthly moist, <br /> medium dense;fine sand with some medium <br /> sand and clay,poor recovery. No hydrocarbon <br /> odor or staining. <br /> 1515 <br /> 18 100 0.0 Sandy Fat Clay(CH);brown(10YR 4%3), slightly CH <br /> moist,hard;abundant fine sand(increases with <br /> Riser Casing:4"Sch. depth),white clay stringers. No hydrocarbon <br /> 40 PVC odor or staining. <br /> N <br /> N <br /> F 20 32 100 0.0 — —— — —— 20 ML <br /> o Silt with Clay(ML);brown(10YR 5/33),slightly <br /> moist to moist,hard;some fine sand,some iron / <br /> z \oxide staining. No hydrocarbon odor or staining-/ <br /> 3: Clayey Poorly Graded Sand(SP-SC);brown <br /> w (10YR 5/3),slightly moist to moist,medium <br /> a dense to dense;fine to medium sand,abundant <br /> 0 iron oxide staining. No hydrocarbon odor or <br /> Q! staining. <br /> q 2.25 buckets <br /> V) <br /> 25 (5-gallon)Hydrated 14 100 0.0 —— —— — 25 CH <br /> 1/4"Time Release Fat Clay with Silt(CH);yellowish brown(10YR <br /> W Bentonite Pellets 5/4),slightly moist to moist,hard;some fine sand <br /> Y (<5%),white clay stringers. No hydrocarbon <br /> U odor or staining. <br /> x <br /> 3 <br /> 0 <br /> Y <br /> 0 30 30 <br /> v~i (continued) <br /> V Lithologic Log and Well Construction Details of MW-6(SB-03) <br /> For <br /> Z O <br /> TIE CAARNG <br /> W Oneida Total Integrated Enterprises a ��• ��. 9 P Project Location Project No. Fig. <br /> 0 � .;: AASF Stockton 2000 Stimson Rd. 2009069 33a <br />