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<br /> Ozti'p6� C_
<br /> WEISS ASSOCIATES
<br /> 1 WELL MW-4 (113-4)
<br /> PC
<br /> } GRAPHIC LOG DESCRIPTION
<br /> Portland y Asphalt/concrete and base rock
<br /> Cement w 5%BantoAnite Silty CLAY(CL),dusky yelkawish brown,
<br /> t
<br /> stiff.damp,<20%fine sand low est K
<br /> Spry CLAY(CL),moderate brown,stiff,
<br />' S — damp, 20-30% fine sand,low est K
<br /> 4PVC
<br /> 5 ft Grading to 40-50%sand at 5- �—
<br /> U Casing _-�—_ Clayey SAND/Sandy CLAY(SC/CL),
<br /> moderate brown,strff/medlum dense,damp,
<br /> very fine sand,mod est K
<br /> toY• ..-...-... ......-...--.^�.... ......
<br /> 10 10 -`"-"" Silty SAND/Sandy SILT(SM/ML),light
<br />' - brown,medium dense to stiff,damp,low
<br /> =_--- plasticity, mod est K, mirror clay blebs(CL)
<br /> z Grading to SM at 10 5 ft
<br /> z -
<br /> C)
<br /> Sandy SILT(ML),moderate yellowish brown, _
<br /> 15 15 --_71 stiff,damp,<5%clay,fine sand,low to mod
<br /> est K
<br /> Silty SAND/Sandy SILT(SWML), moderate
<br /> C> _ _ yelkwtsh broom, medium dense,damp,fine
<br /> a sand,mod est K
<br /> w
<br /> AG1
<br /> 20 Bentonite 20 - - SAND/Siiry SAND(SP/SM),dark yellowish
<br /> pellet seal z brown,mottled light brawn,medium dense,
<br />' M _- damp,very fine sand, high est K,grading to
<br /> x #3 fine to medium sand at 21 5 ft
<br /> Monterey _-'-
<br /> A = sand -=--
<br /> 25 25
<br /> 0 02-Slatted
<br /> eerie
<br /> 4 Feb 887 _ 4"PVC --------
<br /> casing :=--- Dark yellowish brown,mottled light brown,
<br /> L9 Jan 88= moisVwet, micaceous at 27 6 ft
<br /> ,t,.. .1. . _ .
<br /> 0 24 6 6
<br /> iR R dkm EXPLANATION
<br /> = Water level during dnlhng (date) Logged by Sharon L Halper
<br /> — Q Water Level (date) Supervisor Richard Weiss, BG 1112
<br /> Contact (dotted where approx) Dnlling Company Westek, San Jose, CA
<br /> - -- Uncertain Contact Driller Tors Langan
<br /> Location of recovered drive sample Drilling Method Hallow stem auger
<br /> Location of drive sample sealed for chenucal Dates Drilled. 1-14-88 8t 1-22-88
<br /> ® analysis Well Head Completion Locking stovepipe & G-12 Christy box
<br /> a $$ Grab sample Type of sampler.Split barrel (1.5, 2, 26 in ID)
<br /> est K = Estimated PermeYbility (hydraulic conductivity)
<br /> Boring Log and Well Construction Details - Well MW-4 Stockton,
<br /> Chevron SS #96465
<br /> Stockton, CA
<br />
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