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Project: ARCO Station # 548 Log of Monitoring Well:
<br /> Location: 1672 W,Hamer Ln.,Stockton,CA Project Number: 38466402 MW-8
<br /> V � o
<br /> .raw = U g -a
<br /> LITHOLOGY DESCRIPTION WELL CONSTRUCTION
<br /> 55 30 Sandy Clayey Silt(NfL). Gray green,slightly plastic,20'%fine 55
<br /> grained sand,20%clay,petroleum odor,saturated,stiff.
<br /> 60 29
<br /> Sand intervals,stiff. 60
<br /> 65 65
<br /> No recovery
<br /> Sandy Clayey Silt(NII_). Gray green,slightly plastic,20%fine
<br /> wined sand,20%clay,petroleum odor,saturated.
<br /> 70 Silty Clay(CL). Gray Green,trace sand,slight petroleum 70
<br /> staining and odor.
<br /> Silt(ML). Dark yellowish brown,trace sand
<br /> Silty Sand(SM). Greyish brown,very fine to medium gained,
<br /> 75 20%silt. 75
<br /> Clayey Silt(NIL),Dark yellowish brown,low plasticity,30-40%
<br /> clay,trace fine grained sand,moist,no petroleum odor.
<br /> 80 80
<br /> No recovery
<br /> Clayey Silt(NIL). Olive brown,low plasticity,40%clay,trace
<br /> 85 fine grained sand,moist. 65
<br /> 30-40%v clay,10-20%fine grained sand,wet,slight petroleum
<br /> Silty Sand(SM). very fine to fine grained,30-40%silt.
<br /> Clayey Silt(ML). Olive brown,low plasticity,40'%clay,trace 88.5-92.5 ft.Bentonite Plug
<br /> 90 fine gained sand,moist. 90
<br /> Silty Sand(SM). Light olive grey,very fine to medium grained,
<br /> 30%silt,slight petroleum odor,saturated. 2-inch SCH 40 PVC,0.020-
<br /> Clayey Sandy Silt(ML). Light olive brown,20%clay,2096 fine
<br /> grained sand,iron oxide straining,petroleum odor, . inch slot screen 95-10o ft.
<br /> 95 N3 filter pack sand 42.5-100 H. 85
<br /> No recovery.
<br /> Clayey Sand(SC). Very slight odor.
<br /> 100 100
<br /> 1
<br /> UM2870 Gateway Oaks Dr.,Ste 300
<br /> Sarrameato,CA 95833
<br /> 916-679.2(ft
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