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Date Start/Finish: 6/17/13-6/21/13 <br />Drilling Company: Cascade Drilling, L.P. <br />Drillers Name: Steve Vibbard <br />Drilling Method: Mud Rotary <br />Auger Size: 12-inch <br />Rig Type: Mud Rotary <br />Sampling Method: Soil Cuttings <br />Longitude: 2116504.2 <br />Latitude: 6334470.0 <br />Casing Elevation: 18.79 <br />Borehole Depth: 208 ft bgs <br />Surface Elevation: 16.2 <br />Descriptions By: S. Pawlak <br />Reviewed By: Darcy Hinkley <br />Well 1g ID: INJ-14 <br />Client: Occidental Chemical Corporation (OCC) <br />Location: Former OCC Lathrop Facility <br />16777 Howland Road <br />Lathrop, CA <br />Well/Boring <br />Construction PID Headspace (ppm) Stratigraphic Description USCS Code Blow Counts ELEVATION a) Recovery (feet) Sample/Int/Type Geologic Column Analytical Sample Sample Run Number 5 <br />6 <br />6 <br />6 <br />6 <br />7 <br />6 <br />7 <br />7 <br />7 <br />7 <br />7 <br />6 <br />7 <br />7 <br />7 <br />7 <br />7 <br />7 <br />8 <br />8 <br />6 <br />7 <br />7 <br />12 <br />13 <br />14 <br />14 <br />14 <br />14 <br />16 <br />14 <br />SM <br />SM <br />Hand augered to 5 feet bgs. <br />Silty SAND with trace Gravel (SM), dark grayish brown, fine to medium grained <br />sand, loose, dry <br />Dark gray and wet <br />Fine to coarse grained sand <br />Fine to medium grained sand <br />_ <br />6-inch Sch80 <br />AAAA <br />A A A A <br />A AA AA AAAA <br />AAAA <br />A AA A AAAA <br />A A A A <br />A A A A <br />AAAA <br />A A AA <br />A A AA <br />A AA A <br />A A A A <br />A A A A <br />AAAA <br />AAA <br />A <br />A A A A <br />AAAA <br />A A A A <br />A A A A <br />A A A A A AAAA <br />AAAA <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />A A AA <br />A A A A <br />A A A A <br />AAAA <br />AAAA <br />A A A A <br />A A AA <br />AAAA <br />A A A A <br />AA A A <br />AAAA <br />AAAA <br />A A A A <br />A A A,. <br />A A A A <br />AAA A AAAA <br />ANA <br />AAAA <br />A A A <br />A A A <br />A , A AA ' <br />AA <br />A <br />A AA <br />A A A <br />A A A A <br />AAAA <br />A A A A <br />AAAA <br />A A A A <br />A A A A <br />A A A A <br />AAAA <br />AAAA <br />A A A A <br />A A <br />PVC <br />Neat Cement <br />Grout <br />6 inch Sch80 <br />SC Clayey SAND (SC), dark gray, fine to medium grained sand, loose, wet <br />A AA <br />A AA <br />A A A AAAA <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />A A A A <br />AA A A <br />A A <br />, <br />A A . <br />AA ' <br />A A A <br />A A A A <br />A AA A <br />AAAA <br />AAAA <br />A A A A <br />AA A A <br />A AA. <br />A A <br />A, <br />Neat Cement,A <br />A A ,PVC <br />Neat Cement <br />6-inch Sch80 <br />PVC <br />Grout <br />Neat Cement <br />Grout <br />6-inch Sch80 <br />PVC <br />#0/30 Sand <br />(Transition Sand) <br />SM <br />SM <br />Silty SAND (SM), gray, fine to coarse grained sand, loose, saturated Grout <br />SW <br />SW <br />: : Well graded SAND with little Silt (S very VV), fine to ve coarse grained sand, loose, <br />. . wet <br /> <br />SC Clayey SAND (SC), gray, fine to coarse grained sand, loose, saturated <br /> <br />L Sandy CLAY (CL), gray, fine to medium grained sand, non-plastic, loose, wet <br /> . . <br />• • . . <br />I . <br />. • <br />• _ .. . . <br />=5 -5 <br />:10 -10 <br />=15 -15 <br />20 -20 <br />:25 -25 <br />:30 -30 <br />135 -35 <br />:40 -90 <br />:45 -95 <br />50 -50 <br />60 -60 <br />65 -65 <br />-70 -70 <br />-75 -75 <br />-80 -80 <br />85 -85 <br />=90 -90 <br />- 95 -95 <br />Remarks: bgs = below ground surface; ft = feet PG = professional geologist; <br />RID = photoionization detector <br />ARCAD1S <br />Infrastructure Water Environment Buildings <br />Project Number:RV009840.0008 <br />Data File:INJ-14 <br />Templateboring_well HSA 2007 analytical USCS <br />Date: 10/16/2013 S. Pawlak <br />Page: 1 of 3