Laserfiche WebLink
West `%c Hansen Engineer'; Inc. <br /> PO Box 5891 Vacaville CA 95696 <br /> Project: Stockton Developmental Center: Closure In Place Job No.: 6789-12 <br /> Location: Tank No. 3: North of Water Tower Date: May, 1991 <br /> Boring Designation: B1 Driller: Spectrum Exploration <br /> Logged by: BWW Base: Stockton <br /> Boring Location: West Tank End Drill Equipment: CME 75 <br /> Soils Classification System: USCS Diameter & Type Well Casing: <br /> Sample type: BRASS TUBE — SPLIT SPOON NA <br /> Soil Matrix: YES Elevation & Datum: NA <br /> Date Started: May 1, 1991 Finished: 5-1-91 Completion Depth: 20' BGS <br /> Number of Samples: Two Depth to Groundwater: Unknown <br /> Depth 5 c g Lithology Observations: Field Well <br /> (feet) 69 Analysis Construction <br /> 5-1-9 <br /> B1— <br /> Note: Auger angled at 30 degrees <br /> p Lawn.. <br /> Medium grained, dark, silty loam <br /> dry, uncohesive I I <br /> ML No odor or dis—coloration Clean I I <br /> I I <br /> increasing moisture, still i I <br /> relatively uncohesive <br /> ML Clean <br /> I I <br /> 10 . ._ .. . .... .............. <br /> finer grained, dry i <br /> uncohesive i <br /> lighter coloration Clean <br /> <Backfill> minor gravels and sand I I <br /> 15 _1... _ . .. .... . ................. .. ...I I . <br /> Apparently tank backfill I I <br /> Increasing gravels <br /> increasing clay: noticeable odor Contaminated I I <br /> dis—coloration I I <br /> 20 2 .. OH............ Half of sample B1-2 in I I <br /> contamination....._.. .. ........... . .... ... .......... <br /> Clean I I <br /> I I <br /> I I <br /> 25 I i <br /> I I <br /> I I <br /> I I <br /> I I <br /> 30 ....... .... . _.... .... . ... . <br /> I I <br /> I I <br /> I i <br /> I I <br /> 35 I I <br /> I I <br /> I ,.I <br /> I I <br /> 40 I I <br /> LJ <br />