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SOIL BORING LOG Boring No MW-12 Sheet 1 of 3 <br /> (lent SP/ARCO 5469 Date 2/13/2006&2/14/2006 <br /> ddress 130 S Wilson Wy Drilling Company GreggDrilling rig type Marl M-12 <br /> Stockton CA Drilling Foreman Jason <br /> Project No U-5469 Method HSA hole diam 10" <br /> Logged By Justin Crose <br /> Well Pack sand 30 ft to 53 ft Well Construction casing PVC screen 32 to 52 ft <br /> bent 27 ft to 30 ft casing diam 4 screen slot 0 02' <br /> grout 1 ft to 27 ft Depth to GW 7 First encountered groundwater 44 ft <br /> Sample Blow Sam le well Depth Descriptions of Materials PIA <br /> Constru LITHO <br /> Type No Count Tlme Recov ct Scale COLUMN and Conditions PPM <br /> Asphalt <br /> — 2 <br /> ---- -------- ----- ---------- ------ — ------------------------------------------------------------------------------------- ------- <br /> 3 <br /> — 4 <br /> ---- -------------- -------- ---------------- — -------------------------------------------------------------------------------------------- ---------- <br /> -------------------- ------- ------------------ — 5 ------------------------------------------------------------------------------------ --------- <br /> 12 _ <br /> 9 6 CL CLAY dark yellowish brown to yellowish brown 10YR 414 to 514 dry 0 <br /> ------ ------------- ------ - — ------ ------ -- -- <br /> S MW-12-6 5 9 1429 90stiff to very stiff <br /> — <br /> ------------------ -------- ------ ----- — 7 -------------------------------------------------------------------------------------------_ <br /> 8 <br /> ----- ----------- -------- -------- ------ — ------------------------------------------------------------------------------------ ------- <br /> S-- --MW-12-9-- __24_- 14-35---50_ 9 CL CLAY_yellowish brown 10YR 514-trace CaCC3(caliche) dryhard 0 <br /> - ---------- - - — ------ -- - - - _ <br /> ------ <br /> 50(5) _ <br /> 1 0 <br /> 7-- ---------------- ----------------- ----- — ------------------------------------------------------------------------------------- ------- <br /> 1 11 <br /> --- ------------ ------------------------ — -------------------------------------------------------------------------- ------- ------- <br /> 1 2 <br /> 1 3 <br /> ------------------------------- ------- — --------------------------------------------------------------------------- - --- --------- <br /> 1 4 <br /> ---- --- - ------------ ----- ---- — -------------------------------- --------------------------------------------------- ------- <br /> S MW 12-14 5 14 1440 70 _ CL SILTY CLAY yellowish brown 10YR 516 dry very stiff 0 <br /> 15 1 5 <br /> 1 fi <br /> 1 7 <br /> ----- ------------- ------- -------------- — ----------------------------- ----------------------------------- ------------------- ------ <br /> 1 8 <br /> 15 1 9 <br /> -------- -- -- y ----- -----------ry------------------------------------- <br /> S MW-12-19 5 30 14 47 80 _ CL CLAY dark elloHnsh brawn 10YR 414 d hard <br /> 28 2 0 <br /> Comments The boring extended to a total depth of 53 feet bgs <br /> ENVIRONMENTAL INC <br /> arco 5489 naw 72 STRATUS <br />