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Date Start/Finish 615106 Northing NA WelUBoring ID MW-7R <br /> Drilling Company Cascade Drilling Inc Easting NA Client Chevron Environmental Management <br /> Driller's Name J Hernandez Casing Elevation NA <br /> Drilling Method Hallow Stem Auger Company <br /> Bit Size NA Borehole Depth 20'below grade Location Chevron Service Station 9-4275 <br /> Auger Size 4-1/4"ID Surface Elevation NA <br /> 2905 West Benjamin Holt Drive <br /> Rig Type NA <br /> Sampling Method 2"Split Spoon Descriptions By M Worthington Stockton CA <br /> a a <br /> E y W d r- <br /> :3 s4' m 2 W@II/Bonng <br /> O S U Stratigraphic Description Construction <br /> U <br /> ~ N 4) G1 <br /> d Lu E E O = O <br /> V) U) <br /> p lY m O 4 <br /> lL <br /> EL (D <br /> Air Knife to B o bgs <br /> Grout(0 5 20 <br /> bgs) <br /> Bentonka Plug(2 0 <br /> 4 0 bgs) <br /> 2 PVC Riser(0 2 <br /> 5 0 bgs) <br /> 5 5 <br /> Sand Pack(4 0 <br /> 20 bgs) <br /> - - -- Dark yellowis"rown(10YR 316)Silty CLAY some Organics no odor no staining <br /> 5 = ---- slightly stiff to soft very moist to wet <br /> 1 6-10 NA 7 01 - - - <br /> 5 <br /> 10-I0 <br /> - - - 2 PVC Screen <br /> 4 = _ (5 V 20 bgs) <br /> 2 10 12 NA 3 00 - - - <br /> 5 = <br /> Dark yellowish brown(10YR 416)CLAY some organics no odor no staining shghUy <br /> 4 stiff to soft very moist to wet <br /> 3 1214 NA 7 00 <br /> 15 =- <br /> -= Light olive-brown(2 5Y 514)Sandy CLAY no odor some iron oxide staining slightly <br /> 4 <br />