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SOIL BORING LOG Boring No. B-3/MW-33 Sheet 1 of 3 Client Arco Date 616100 y Address 130 Wilson Way Driller Woodward rig type:SW-f3i Stockton,CA Drilling Foreman Van Leonard Project No. Do00-336-2 MethotlHolkow Stem Auger continuous core hole diam.: 40" Logged By: Doug Guenther Well Pack sand: 31 ft. to 53 ft Well Construction casing: PVC screen:33'to 53'b s bent.: 29 ft. to 31 ftcasing diam.:4" screen slot:0.02" 4rout: 0 ft. to 29 fl Depth to GW: 7 37 ft,Time/Date 1445 ft.TimelQaie Sam le 61ow; Sam le - Depth Constru' LI _ Matenals T e ria. Count' Time ate. Scale CO�uMN..;:. _ Descnpttonso( _ and Conditions _ ASPHALT 0 2 PPM - -` - -------- ------ ------ — 1 ROAD BASE GRAVEL 2"-6" ------------------------` ------------------------` 3 -- 4 ----------..`---------------- -- ---- ...- ------- 5 - 20 —6 50 for 5" -- -----------•------------ S_ 83-7 1335 60 T ML SILT,brown,hard,low plaslicity 0 BD 8 ML SILT,brown,hard,low plasticity,white mottl#ng — ------------------- ------ - ------•--- 3D — 50 for 5" —-- S----S $3-12 _ 1340 80 1 1 ML CLAYEY SILT,olive brown,low l�isticit hard ` - - 25 - -- --------------. —P- l i y 25 — 1 2 50 for 5" — .---------------------------------------------- ----- ----------- ------------ ---- 90 1 3 ML SILT,olive brown,slight iasticit ,ve Stiff,d slight 23 — y 7 ` 50 for 5" - - — 1 4 ---- --------------- -15— -15 1350 80 1 5 ML SILT,olive brown,stiff -------- ---------------- 0 - ` - ---- ----- ------- L 6 25 ------------ -`-- -------_ 1 7 ML SILT,olive brown,orange iron oxide stains,medium stiff 12 — ------ 50 for 5" ----------------------------•---------------- ----- B3-19 1400 100_ i 9 ML SILT,olive brown,low Iasticit ,soil,d -- — p — D 35 2 0 Field Location o goring: Comments:Total depth of boring 60 feet bgs, Bentonite backfilled from 53'to 60'bgs as a bottom seal for the well. Delta Environmental 1k ConSUItants, Inc.