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Conestoga-Rovers & Associates BORING/VIIELL LOG 19449 Riverside Drive, Suite 230 ry _ Sonoma, CA 95476 '1 y' Telephone: 707-935-4850 Fax: 707-935-6649 CLIENT NAME Shell Oil Products US BORING/WELL NAME MW-14B JOB/SITE NAME Former Shell Pipeline DRILLING STARTED 08-Jul-11 LOCATION Cordes Ranch, Tracy, California DRILLING COMPLETED 12-Jul-11 Continued from Previous Page ° t r M g OF w z x Z a F W ai o¢- O SOIL DESCRIPTION Z ? WELL DIAGRAM a m0 ¢ W ov Ow X 40 _ V 42.5 0.0 SAND (SP) ; yellowish brown (10YR 5/6); wet; 3% silt, sP 97% fine to coarse sand. 44.3 Silty SAND ISM) ; yellowish brown (10YR 5/4); wet; 50% 0.3 45 SM silt, 50% fine sand. 46.0 Sandy SILT (ML) ; yellowish brown (IOYR 5/4); wet; 10% clay, 60% silt, 30% fine sand. Sandy SILT (ML) ; yellowish brown (10YR 5/6); wet; 70% silt, 30% fine sand. Interbedded with Silty SAND (SM) ; yellowish brown (10YR 5/6); wet; 30% silt, 70% fine sand. 0.4 50 — Portland Type II ML 0.0 55 @ 54.2' - SILT (ML) ; light olive brown (2.5Y 5/4); wet; 10% clay, 90% silt. c r, @ 57.5' - 20% clay, 80% silt. 58.5 a Silty SAND ISM) ; yellowish brown (10YR 5/4); wet; 5% 58.8 NNI cla 30% silt 65% fine sand. 0.0 O 60 ML SM SILT ML ; yellowish brown (1 OYR 5/4); wet; 20% clay, 60.7 80% silt. F Silty SAND (SM) ; light alive brown (2.5Y 5/3); wet; 5% z clay, 20% silt, 50% fine sand, 25% coarse gravel. @ 62.5' - 5% clay, 35% silt, 60% fine sand. 63.8 SILT (ML) ; light olive brown (2.5Y 5/3); wet; 20% clay, 65 80% silt. iz D ML 68.7 g 0.0 Silty SAND with Gravel (SM) ; light olive brown (2.5Y 70 < 513); wet; 20% silt, 60% medium sand, 20% fine gravel. a SM _ O 0 74.2 0.075 GRAVEL with Silt and Sand (GP-GM) ; light olive brown Continued Next Page Pace 2 of 4