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j <br /> Drilling Log , <br /> GROUNDWATER <br /> Monitoring Well OB-3 <br /> ❑❑ TECHNOLOGY <br /> Protect Manna Pro Owner Manna Pro CorporationSee Site Map_ For Boring Location <br /> Location Stockton, California Prol No 020702819 <br /> Surface Flev -- ft Total Hole Depth 50 ft Diameter 1025 in COMMENTS <br /> Top of Casing -- ft Water Level Initial 41 ft Static -- ft <br /> Screen Dia 2 in Length 10 ft Type/Size 0 020 in Samples collected from 7 diameter pilot <br /> CasingDia 2 in 40 ft SCh 40 PVC borehole Redrtiled with 1025 diameter <br /> Length Type augers tot well construction Monitoring <br /> point consists of 2 diameter observation <br /> Fill Material #3 Lapis Lustre Rig/Core Mobile_B-61/Spilt SP-000 well and 3 nested vapor probes The <br /> Drill Co GreggDrilling Method Hollow Stem Auger vapor probes are represented by a blas <br /> hne next to the well <br /> Driller Mike Bramar Log By DH Horner/DH" pate 9-21-93 Permit # 93-1836 <br /> Checked By David Kleesattel License No RG# 5136 <br /> — C 0 w T <br /> �-- of o " "�, Description <br /> Q:w CV �--i Q U O Q.p U <br /> ��- E a s = # m ' _J m (Color, Texture, Structure) <br /> o m ¢ 0 En a <br /> � m Trace ¢ 10%, Little 10% to 20%, Some 20% to 35%. And 35% to 50% <br /> ca x a <br /> _2 <br /> 0 SILT with trace clay, fine sand and ravel, grayish brown <br /> Y g 9 Y <br /> (10YR5/2) (stiff damp, no odor) (FILL) <br /> 2 <br /> 4 <br /> 6 <br /> 8 <br /> ML <br /> 10 5 <br /> 5 <br /> 6 <br /> 12 <br /> 14 <br /> 5 (grades trace calcium carbonate stringers, brown 00YR4/3)) <br /> 5 <br /> 16 <br /> OB3-16 10 <br /> 18 g (grades yellowish brown (10YR5/4)) <br /> 10 <br /> 083-18 515 CLAY, brown {10YR5/3) (very stiff, damp, no odor) <br /> CL <br /> 20 15 SAND, fine to medium with trace silt, brawn 00YR5/3), moderate <br /> 35 grading (dense, subrounded, most, no odor) <br /> 063-21 40 sM <br /> 22 - <br /> 15 SAND, fine to medium with trace coarse, brown 00YR4/3), <br /> 30 5w moderate grading (dense, subrounded, moist, no odor) <br /> - 24 35 <br /> 12/22/1993lithlog-mar93 Page 1 of 2 <br />