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Boring Numbers AS-1/VW-1/VW-2 - HORIZON ENVIRONMENTAL INC. Job Number 1419 12 —Site Location Beacon {419, Stockton, CA Drilling Company V & W Drilling Drilling Method 8—inch Hollow Stem Auger Drilled By Robert & Larry Sampling Method Split—Spoon Sampler Date Drilled 09/25/98 Total Depth 91 5 Feet Logged By L Smith Depth To Groundwater 53 Feet m C d dC C 'A m m a_ O O t i > > o c p o a� Z ci m a it Soil 2 aWell c E t q o Description H Construction Comments u m fY (n— d a a AS—i ' 61— G 21 61 SILTY SAND, dark yellowish brown wet l 28 18 18 37 y SM Casing Installation Data m 29 very dense 62 62 65-1 ' 63 63 inch PVC 0 010—inch screen 64 64 Vw_1 65 65 2—inch PVC ' 0 020—inch screen to 13 66 1 21 18 18 62 BB Dense, strong odor yw-2 28 67 67 2—inch PVC ' 0 820—inch screen 68 68 69 69 10—inch boring 8—inch bonng 70 70 0 33 SANDY SILT with thin hard clay lenses 71 i 50 18 18 467 71 dark yellowish brown, wet, very dense ML yr strong odor 72 72 ' 73 73 Smoother dnllmg at 73 feet 74 74 ' 75 75 w 12 76 n 17 18 18 154 76 CLAY, dark yellowish brown, moist CL 22 hard medium plasticity moderate odor I 77 1213 SB 16 36 77 Very atrff 78 35 78 79 80 12 12 41 7 SANDY CLAY reddish brown, damp 050 very hard, low to medium plasticity, odor BO wi 90 12 12 25 80 (A 81 8 82 100 6 6 17 8 B3 66 83 400 10 8 108 Slight odor 84 g 100 82 18 12 21 85 100 B5 Very hard clay lenses 86 86 87 87 SANDY CLAY with sand filled dessication 88 31 88 cracks, dark reddish brown very moist hard 89 89 Ftydropunch sample interval from 88 to 91 5 feet 90 90 91 91 Total depth — 91 5 feet bgs Page 3 Of 3