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PROJECT: 575 Industrial Pa ive <br /> Manteca, California Log 11well MW-1 PAGE 1 OF 2 <br /> Boring location: Manteca California <br /> Date started: 8/22/91 Date finished: 8/22/91 NOTES: <br /> Drilling method: 9-inch O.D. Hollow Stem Auger Logged by J. Ordons, C. E. G. <br /> Hammerwei ht: 140 lbs I Drop: 30 inches <br /> Sam ler: 2.5 inch O.D. Split Spoon <br /> SAMPLES <br /> x _ MATERIAL DESCRIPTION Friction cap <br /> a <br /> w � Ez° E o .g <br /> ,. Top of casing:35.52 feet(Site Datum) Locking <br /> Brown SAND with SILT (SP - SM) dry steel vault <br /> 2 <br /> Binh <br /> 3 diameter <br /> #xn?' boring <br /> 4 %? <br /> 5 <br /> 6 <br /> Cement/ <br /> 7 <br /> bentonite 8—grout <br /> 9 <br /> firs; <br /> 10 <br /> 11 2-inch <br /> diameter <br /> 12 <br /> Sch.40 <br /> 13 PVC casing <br /> 14- <br /> 15- <br /> 16- <br /> 17— <br /> 4151617 Bentonite <br /> pellets <br /> 18 <br /> Brown CLAY (CL) moist <br /> 19 <br /> 20 Brown SANDY SILT (ML)/SILTY SAND (SM) <br /> 9 becomes saturated at 21 feet 0.02-incn <br /> 21 slotted <br /> 22 casing <br /> P3 _ water level (8/28/91) <br /> 24color change to gray No.3 <br /> sand <br /> 25 <br /> 26 <br /> 27 <br /> 28 <br /> 29 <br /> 30 <br /> 1T <br /> TREADWELL & ROLLO, INC. Project No. 1107A-2 Figure 310 <br /> Consulting Engineers and Scientists <br />