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Pro)ect ARCO #4493 Log of Boring/Monitoring Well <br /> Boring Location 705 N CENTER ST STOCKTON, CA Project No 7G600-022-02 <br /> Subcontractor and Equipment CENTRAL VALLEY DRILLING Logged By A A Drawn By T Z M W- 1 <br /> Sampling Method HSA,SPLIT SPOON Monitoring Device RAE PID Comments <br /> Start Date/Time 2/10 99//1100 Finish Date/Time 2/10/99//1400 <br /> first Water (bgs) 18 Stabilized Water Level (bgs) 13 58 FT <br /> k _ Surface Elevation NA Top Casing Elevation NA <br /> Boring Abandonment/ <br /> CL v c y LITHOLOGIC DESCRIPTION <br /> .92 0. y y .t-+ Q N d <br /> (color, gram size, consistency, moisture, other)E C3 <br /> Well Construction Details <br /> a u <br /> CD a a a ' ain <br /> 3 <br /> 0s a —4-) Fill material = <br /> V v Traffic-rated <br /> 1 Fill material from 4" to about 6' Well Box <br /> 2 v v <br /> -v—Neat00 Grout <br /> 3 <br /> Bentonite <br /> 4 <br /> Chaps <br /> 7 5 <br /> 10 <br /> 1215 29 14 6 SILTY CLAY (CL) (0,5,35,60) DARK GRAY, very fine, — SandPack <br /> 7 firm, damp, no odor <br /> 6 — <br /> 9 — 4'0 Sch 4 <br /> PVC Blank <br /> 10 _ Casing <br /> 10 <br /> 19 11 SILTY CLAY (CL) (0,5,35,60) DARK GRAY, very fine — <br /> 1230 29 15 grained, well sorted, firm, damp, no odor — <br /> 12 — <br /> 13 — 4" 020 <br /> Screen <br /> 14 <br /> Casing <br /> T — <br /> 4 15 SILTY CLAY (CL) (0,5,35,60) DARK GRAY, very fine, <br /> 11 16 moderately sorted, firm, damp, slight odor, some <br /> 1245 13 45 brick material encountered — <br /> 17 <br /> 1B T <br /> 19 <br /> 3 20 ry — <br /> 1300 7 a s 21 SAND (SW) (0,90,5,5) DARK GRAY, fine grained, well <br /> sorted, slight odor, saturated <br /> 22 — <br /> 23 <br /> 5 24 —_ <br />� 15 <br /> 25 SAND (SW) (0,90,5,5) DARK GRAY, fine grained, well End Cap <br /> 37 sorted, loose, slight odor, saturated <br /> 1315 67 8626 _ <br /> 27- <br /> 28- <br /> 29- <br /> 30-1 <br /> 72$2930 <br /> 000 Reviewed By Date <br /> S E C O R Revised By Date Page_Lo f_-2— <br />