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I <br /> TERRA VAC CORPORATION LOG OF EXPLORATORY BORING GP-7 <br /> 1651 Alvarado Street, San Leandro, CA 94577 <br /> Page f of I <br /> B <br /> U. p cn (o <br /> c c CD <br /> � CL x MATERIALS DESCRIPTION <br /> a tan w a r <br /> o v) cry <br /> r <br /> CL <br /> CLAY, silt (5-10X), greenish black (2.5/10Y), damp, very plastic <br /> i <br /> NIA GP7-3.0 AS above <br /> 2.6 r <br /> N/A GP7-5.0 5 <br /> GP7-6.Q <br /> GP7-7.0 <br /> 6.4 <br /> AS above, dark greenish brown (IOYR/42) <br /> N/A GP7-9.0 <br /> GP7-10.0 10 <br /> GP7-11.0 SM <br /> 8.8 SAND, very fine, silt (25-30X), clay (10-15X), dark greenish <br /> gray (4/5GY), dense, damp, <br /> N7 GPT-13.0 <br /> GPT-14.0 <br /> GP7-15.0 15 <br /> 5.8 yCL <br /> CLAY, silt (10-I5%), sand (trace), fine, dark greenish gray <br /> N/A GP7-17;0 (4/10Y), wet, Slightly plastic <br /> GP7-18.0 <br /> GP7-19.0 <br /> 347.7 20 AS above <br /> f N/A GP7-21.0 <br /> SP <br /> GP7-22-0 SAND, very fine, silt (25-30X), dark greenish gray (3/10Y), ! <br /> GP7-23.0 damp very dense <br /> i <br /> 264 <br /> i <br /> N/A GPT-25.0 25— <br /> GPT-26.0 <br /> 5 GP7-26.0 <br /> GP7-27.0 <br /> 3.7 <br /> N/A GP7-29.0 <br /> GP7-30.0 30- <br /> GPT-31.0 <br /> 8.9 <br /> PR06E refusal : <br /> Bottom of boring at 32 feet. <br /> 35 <br /> i <br /> PROJECT Chevron SS 119-4054 DRILLING COMPANY Kvilhaug well Drillin <br /> LOCATION 2103 Country Club Blvd., Stockton GATE DRILLED September 29, t997 <br /> ! JOB NUMBER 30-0212 SURFACE ELEVATION Not surveyed <br /> I <br /> GEOLOGIST Cliff+M. Garratt TOTAL DEPTH OF HOLE 32 Feet <br /> DRILL RIG 1.75'9 Geoprobe FIRST OBSERVED GW 16 Feet 1E <br />