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Project: Van Buskirk Golf Course Facility Project No.: AGE-NC-98-0468 BORING NO.: <br /> Site Address: 1740 Houston Avenue Total Depth: 21 Feet bsg B-4 (MW-4) <br /> ' Stockton, California Date: 27 April 1999 <br /> 11 rilling Co.: Central Valley Drilling Logged by: Gary Dickenson Page 1 of 1 <br /> ' Rig/Auger Type: B-5318" Dia. Hollow Stem Auger Reviewed by: Nuel Henderson <br /> i <br /> 1 �� '. ��-�,�' o� vy � ,"�may; '� $ L�tholo is 17escri bon <br /> 5 <br /> ' - SM SILTY SAND,brown to grey,moist,medium dense, poorly <br /> B-4-6.5' 12/14/9 graded,fine sand,micaceous,weakly cemented. <br /> ' 10— <br /> B-4-10.5' - 4/517 CL SILTY CLAY with sand,brown,moist,medium stiff, fine sand. <br /> ' 15 — SANDY SILT with clay,brown,moist to wet,medium stiff,fine <br /> ML sand. <br /> B-4-16.5' - 8/9/13 CL SILTY CLAY,brown,moist,stiff, low plasticity,fine sand. <br /> - 6/10/13 <br /> - SC %'!, ': CLAYEY SAND brown wet dense poorlygraded,fine sand <br /> 20— B-4-20' 8112115 t 18'bsg, increase in grain size to medium sand. <br /> 617110 t 20'bsg,decrease ingrain size to fine sand. <br /> ' Total depth=21 feet bsg. <br /> 25Note: <br /> 1)On 4/27/99, install 2-inch diameter Schedule 40 PVC well <br /> casing and 0.010-inch slotted well screen.Well screen interval <br /> ' from 6 to 21 feet bsg. <br /> Installed filter pack with##2/16 Lonestar sand from 5 to 21 feet <br /> 30— bsg. Bentonite seal from 3 to 5 feet bsg.Portland neat cement <br /> rout seal from 1 to 3 feet bsg. <br /> 1 <br /> ' 35 — <br /> ' 40— <br /> i <br /> Advanced ; <br /> { <br /> GeoEnvironmental, Inc. <br /> ' L:IAMIPROIB RING-11YANBLI -1VMW4.SANi 06129199 @ 10:55 AM <br />