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SOIL BORING LOG Boring No MWAC Sheet 4 of 6 Client Arco Station 2168 Date 8/41D0 Address 441 W Charter Way Drilling Company Woodward Drilling Company ng type BW-81 Stockton,CA Driller Van Leonard Oct No D000-329-1 Method Hollow Stem Auger hole dram 9- s 16" 8S-120 s 8' L229ed By Steve Fischenich Sample Blow Sample well Depth Construc LITHO Descriptions of Materials PID Type No Count Time Recov t Scale COLUMN and Conditions (PPM) 6 1 30 50% 6 2 ML CLAYEY SILT with-fine-grained-SAN D,dark _ -------------------------- ----------------------------—---------------------------- 50 for S -- 6 3 40 1035 50% s 4 ML SILT,gray,5%fine grained sand,hard,wet- 99 — ------- -50 for 4 --- ----- — - ----------------------------------------- ------ 6 5 50 fors 25%0 6 6 ML SILT,gray,5%fine grained sand,hard,wet s7 50 for-6'-.--10 44.---25%- 6 8 6 9 30 1056 50% 7 o ML SILT,gray with white mottles,low Qlastrcrty,hard,moist _ 867 25 7 --------------------- ------ ------- --- ---—------------------------------------------------------------------------------------- ------- 50 for 4' 45 _ ___ __ 7 2 ML SILT gray ninth white mottles,low pl2sticity hard moist 31 50 for 4" _ --------------------------- -------- - 3 20 - 11 09.---5m. 7 4 ML SANDY---SILT gray,40%fine grained sand,1%gravel_wet -- -------- 50 for 4 ---- — -------- --- — --------- 7 5 8_-- 11 18 75% 7 6 SW SAND,9raar_well graded,10%gravel,wet 10 --- ----- 1 ----- ------- — ---------- ------------------------------------------- -------- i5 7 7 20 _ 30 11 25 10% 7 8 SAN SAND �ray_wellgraded_5%gravel-wet 50 far 5" — ------- 7 9 25 25% & o SANDY GRAVEL,gray,well graded,30%coarse sand 3%fines,wet 20 Field Location of Boring Comments Soil continuously sampled from 60'to 120 6gs