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Project: ARCO #4493 Log of Boring/Monitoring Well: <br /> Boring Location: 205 N. CENTER STS__ .'JCKTON, -CA. Pra' ct No.: 710:600—1 _-02 MW- 2 <br /> Subcontractor and Equipment: CENTRAL VALLEY DRILLING I Logged By. A.A. I Drawn BY T.Z. <br /> Sampling Method; HSA,SPLIT SPOON Monitoring Device: RAE PID Comments: <br /> Start Date/Time: 2/11/99//0750 Finish Dole/Time: 2 11/99//0900 <br /> First Water (bgs): 18 FT. Stabilized Water Level (h s): 14.66 FT. <br /> a Surface Elevation: NA Top Casing Elevation: NA <br /> z oBoring Abandonment/ <br /> o u <br /> u <br /> CL w N J LITHOLOGIC DESCRIPTION <br /> Q # o o �' (color, grain size, consist ncy, moisture, other) Well Construction Details <br /> n U <br /> n As halt —4 ill material 1 <br /> Traffic—rated <br /> 1 Fill material from 4" to about 6' Well Box <br /> 2 v v <br /> Neat Grout <br /> 3- <br /> 00 <br /> Bentonite <br /> 411 <br /> Chips <br /> 7 5 <br /> 0800 18 0 6 SILTY CLAY (CH) (0,0,10,90) DARK BROWN TO LIGHT — '; Sand01Pack <br /> 7 BROWN, very fine grained, very well sorted, very firm, <br /> $ no odor — <br /> 9 4'0 Sch-4 <br /> PVC Blank <br /> Casing <br /> 8 1D SILTY CLAY (ML) (0,5,25,60) DARK TO LIGHT BROWN, _ <br /> 21 11 fine to very fine grained, moderately sorted, firm, — <br /> 0810 32 0 no odor <br /> 12- <br /> 134' <br /> 2 134' .020 <br /> Screen <br /> '.5.'._ Cosin <br /> 14 — g <br /> 15 15 SILTY CLAY (ML) (0,5,15,80) DARK BROWN, fine grained, <br /> 37 i6 very well sorted, no odor <br /> 0830 65 a <br /> 17- <br /> 19- <br /> 20 <br /> 7 1920 = <br /> 15 21 SILTY SAND (SM) (0,70,20,10 BROWN, fine grained, well <br /> 0845 30 o E sorted, very loose, saturated, no odor <br /> 22 <br /> 23- <br /> 24- <br /> 25 <br /> 3 — <br /> 24 <br /> 25 SILTY SAND,(SM) (0,70,20,10 BROWN, fine grained, well End Cap <br /> 12 sorted, loose, saturated, no odor <br /> 2526 <br /> 0900 40 0 <br /> 427 Total depth of boring = 25 FT. <br /> Sample to 26 1/2 FT. <br /> 28 <br /> 29 <br /> a <br /> 30 <br /> 000 Reviewed By. Date: <br /> S E C O R Revised By. Date: Page 1 al L <br />