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Project: ARCO #4493 Log of 8oring/Monitoring Well: <br /> Boring Location: 205 N. CENTER ST. STOCKTON, CA. Project No.: 7G600-022-02 M W— 3 <br /> Subcontractor and Equipment: CENTRAL VALLEY DRILLING Logged By. A.A, I Drown By: T,Z. <br /> AM Sampling [Method: HSA,SPLIT SPOON Monitoring Device: RAE PID Comments: <br /> Start Date/rime: 2/11/99//1300 Finish Date/Time: 2/11/99//1345 <br /> First Water (bgs). 16.5 FT. Stabilized Water Levet (bgs): 14.90 FT. <br /> r, Surface Elevation: NA 'fop Casing Llevation: NA <br /> E 0 � U Boring Abandonment/ <br /> 21 Z <br /> R CL CLN J LITHOLOGIC DESCRIPTION <br /> E o o Q o c (color, grain size, consistency, moisture, other) Well Construction Details <br /> 0 As halt — <br /> Traffic—rated <br /> 1 Fill materiol from 3" to about 7' 0 Well Box <br /> 2 v V <br /> bleat Grout <br /> 3 <br /> Bentonite <br /> 4 Chips <br /> 5 .. <br /> 6 #2012 <br /> _ Sand Pack <br /> 3 7 — <br /> 7 8 _ <br /> 12 o Fill material, some sand, grovel,bricks, concrete, i, <br /> g no odor — 4'0 Sch.4 <br /> PVC Blank <br /> 2 10 SILTY CLAY (CL) (0,5,40,55) DARK BROWN, firm, = Casing <br /> 5 11 damp, no odor <br /> 8 a <br /> 12 <br /> 13 — 4' .020 <br /> _ Screen <br /> 14 — Casing <br /> 7 15 SANDY SILT (ML) (0,20,65,15) DARK GRAY, very well <br /> 14 16 sorted, fine grained, wet, no odor = <br /> 22 a <br /> 17- <br /> 19 <br /> 7 19 - <br /> 5 20 SILTY SAND (SM) (0,70,20,10) BROWN, fine grained, ver - <br /> 12 21 well sorted, soft, loose, saturated, no odor <br /> 21 1.6 <br /> 22 — <br /> 23 — <br /> 24— <br /> 12 25 T End Cap <br /> 25 SILTY SAND (SM) (0,70,20,10) BROWN, fine grained, ver <br /> 40 2.4 26 well sorted, soft, loose, saturated, no odor <br /> 27 Total depth of boring = 25 FT. <br /> Sample to 26 1/2 FT. <br /> 28 <br /> 29 j <br /> 30- <br /> p <br /> 000 Reviewed By. Date: <br /> S E C O R Revised By. Date: Page 1 of t <br />