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Remarks: bgs = below ground surface; ft = feet PG = professional geologist; <br />PID = photoionization detector ARcADis <br />Infrastructure Water Environment•Buddlny% <br />Well/Boring <br />Construction PID Headspace (ppm) Stratigraphic Description USCS Code Blow Counts ELEVATION Recovery (feet) Sample/Int/Type Geologic Column Analytical Sample Sample Run Number Date Start/Finish: 6/17/13-6/21/13 <br />Drilling Company: Cascade Drilling, L.P <br />Driller's 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 />Wel ng ID: INJ-14 <br />Client: Occidental Chemical Corporation (OCC) <br />Location: Former OCC Lathrop Facility <br />16777 Howland Road <br />Lathrop, CA <br />Total boring depth at 208 feet bgs. Well depth at 205 feet bgs. — 210-210 <br />— 190-190 <br />— 195-195 <br />7 200-200 <br />— 205-205 <br />Trace pea sized gravel <br />SM <br /> Sch80 PVC <br />Sump <br />#3 Sand <br />#3 Sand <br />Project Number:RV009840.0008 <br /> <br />Templateboring_well HSA 2007 analytical USCS <br /> Page: 3 of 3 <br />Data File:INJ-14 <br />Date: 10/16/2013 S. Pawlak