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Boring Numbers B-Z HORIZON ENVIRONMENTAL INC <br /> Job Dumber 1641 12 Oft, - <br /> Site Location Beacon #641, Stockton, CA <br /> Drilling Company Mitchell Drilling Environmental Drilling Method 10—Inch Hollow Stem Auger <br /> Drilled By Bart Sampling Method Split—Spoon Sampler <br /> Date Drilled 07/22/97 Total Depth 80 Feet <br />' Logged By G Barker Depth To Groundwater 64 Feet <br /> %_, m a <br /> .d <br /> O_ <br /> > c H 2 <br /> L o vO <br /> 0 na oil <br /> CL <br /> -5 ' <br /> Welt Comments Description o 0' ConstructionC o <br /> 6 m s vy o� iz <br /> V) _ o U a vW-1 <br /> Mw-1 VW-21 <br /> 30 18 18 23 <br /> 61 35 <br /> 35 61 SP <br /> Casing Installation Data <br /> 62 62 _1. _1 lk _ <br /> 63 63 2—inch PVC <br /> 0 020—inch Screen <br /> 64 64 <br /> 65— in 12 <br />' 1 18 18 16 42 65 wet S <br /> 68 18 66 ` <br />' 67 67 <br /> 1 <br /> 68 68- <br /> 69— 69 <br /> 70 j 30 12 i0 0 SAND fine— to medium—grained, tan and <br /> in 50 7Q brown, wet 4 <br /> 77 71 <br /> 72 72- <br /> 73— 73- <br /> 74— 74 <br /> � <br /> 27 <br /> 75 j 36 18 16 0 75 <br /> W 50 <br /> 76 76 <br /> 77 77 <br /> 78 78 <br /> 79 79 <br /> 0 27 <br /> 80 °j 30 18 10 0 <br /> rn 40 Total depth 80 feet bgs <br /> 81 81 <br />' 82 82- <br /> 83— 53 <br />' 84 84- <br /> 85 85 <br />' 86 86- <br /> 87— 87- <br /> 88- <br /> 89— <br /> 788 89 89- <br /> 90-11-1-1-1-190 <br /> 9 <br /> 90 90 <br />' Page 3 Of 3 <br />