Laserfiche WebLink
mE <br /> 16 <br /> to <br /> TOP OF PVC CASING = °CO.�' ,= a Equipment 10"Hollow Stem Auger <br /> Elevation 3 ¢m EE m <br /> g > Elevation Date B-26-93 <br /> GROUND SURFACE m 0 D <br /> TOP OF CASING BROWN SANDY SILT(ML)10YR 4/3 <br /> at ground surface loose,dry,30%very fine-grained sand,10%gravel <br /> 10'DIA. BOREHOLE <br /> 0.030.0 IT <br /> 4'DIA SCHED.40 PVC <br /> BLANK 0.0 to 5.0 it Ji�i <br /> 5 <br /> 5 0 VERY DARK GRAYISH BROWN CLAY(CL)10YR 3/2 <br /> BENTONITE-CEMENT SEAL = e very hard,dry,10%weathered clayey lasts,5%send, <br /> 0.0 to 2.5 k = 6 sparse rust'staining <br /> BENTONITE PELLET SEAL <br /> 2.5 to 4.0 It <br /> LONESTAROV12SANDPACK <br /> 4.0 to26 0 = 10 Y <br /> 4'DIA.SLOTTED SCREEN = 3 0 BLACK CLAY(CL)5Y 2.5/2 hard,moisture along <br /> 5 cracked surfaces,10%silt trace sand,micaceous, <br /> (0.020'slot size)5.0 to 25.0 k = 6 plant material and rusty staining <br /> s o 15 VERY DARK GRAYISH BROWN SILTY CLAY(CL) <br /> tt 10YR 3/1 hard,moist,301/6 silt,5%sand,crumbly <br /> 12 <br /> 4 0 20 DARK GREENISH GRAY SILTY SAND(SM)5G 4/1 <br /> g moderately stile,saturated,70%very fine-grained sand, <br /> 12 20%site 5%clay,5%coarser sand stringers, <br /> micaceous <br /> DARK GREENISH GRAY SAND(SP)5G 4/1 <br /> 4'DIA.SCHED.40 PVC = loose,saturated,90%very fine-grained sand, <br /> BLANK SILT TRAP — 5%coarse-grained send,5%day <br /> 25.0 to 25.5 it 1 0 25 <br /> 3 <br /> BOTTOM WELL CAP 6 VERY DARK GREENISH GRAY CLAY(CL)5G 4/1 <br /> 25.5 k hard,moist 30%silt <br /> BENTONITE PELLET <br /> BACKFILL 26.0 to 30.0 k <br /> HOLE CLEANED OUT <br /> to 30.0 k T 30 <br /> 16 <br /> 21 <br /> Bottom of boring at 31.5 It <br /> 35 - <br /> 40 1aXMLFD <br /> Handling Lawson Associates Log of Boring and Well Completion MW-25 PLATE <br /> Engineering and Results of Plume Characterization Investigation /'� <br /> O <br /> C. Environmental Services Shell Oil Distribution Plant o <br /> F Stockton, Califomia <br /> DRAWN JOB NUMBER APPROVED DATE REVISED DATE <br /> LZC 10433 005 b Lc, 10193 <br />