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SOIL BORING LOG Boring No MW-8C Sheet 6 of 6 <br /> Client Arco Station 2168 Date <br /> Address 441 W Charter Way Drilling Company Woodward Drilling Company ng type BW-81 <br /> _Stocldon,CA Driller Van Leonard <br /> No D000-329-1 Method Hollow Stem Auger hole dram (Y- s 16" 9(Y-120 s 8" <br /> Logged By Steve Fischenich <br /> Sample Blow Sample Well Depict Descriptions of Materials PID <br /> Construc LITHO <br /> Type No Count 'Gime Recov t Scale COLUMN and Conditions PPM <br /> 50 for 5' _ <br /> 10 1 <br /> _20 AD% 10 2 ML SANDY SILT,dark gray,20%fine rained sand,hard,moist ----------------- <br /> ----- ---- ----- — -------- ------------------------- - ------- ---------------------- -19 <br /> 50 for 5 <br /> 10 3 <br /> 15 10 4 ML CLAYEY SILT gray,low to moderate plasticity,hard,moist----_-T_ _ — 0 <br /> -- --- - -------- -- -------- — ---------------- ------- <br /> 35 _ <br /> 50 for 4' 909 40% 10 5 <br /> 25 -_9 14 31)% 10 s ML CLAYEY SILT,gray,_less clay than above_<10%fine grained sand, <br /> ----- ------------------------ — -------------- ---------- ------- <br /> 50 for 4' low to moderate plasticity,hard,moist <br /> 10 7 <br /> 36 926 40% 10— 8 ML SILT,gray with white mottles low ptasticity,hard,moist 0 <br /> __ ---------------------------- ------ ------------- .-__— - ---------_--_----_------- ------- <br /> 50 for 4' <br /> --_--- ------ --- ---- 10 s ----------------------_. __-------------------------------------------------- ----- <br /> 50 for 4" 935 40% 11 o ML SILT,gray with white mottles,low plasticc ,hard,moist 0 - <br /> 11 1 <br /> 30 20% 1 i 2 SILTY SAND gray,40%fines very dense wet <br /> 50 for 3 _ <br /> 11 3 <br /> 50 for 5 20% 11 a SAND grayr_fine to medium grained wet - 0-- <br /> 11 5 <br /> 40 11 6 <br /> 50 for 4' 1005 40% _ SW GRAVELLY SAND,gray,15%gravel,wet 0 <br /> 11 7 <br /> 30 11 8 <br /> --------- -------- ------------------------------------------------------------------------------------------ <br /> CLAYEY <br /> ------------- ------- <br /> CLAYEY SILT light gray,some cementation,low to moderate plasticity, <br /> 111 s very dense,moist <br /> ML CLAYEY SILT,light gray,some cementation,law to moderate plasticity, <br /> 34 1 i2 a very dense,moist 19 <br /> Field Location of Boring Comments Well surged for 20 minutes <br />