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0 <br /> S <br /> ECoR <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Bonng Number <br /> CASCADE CHEVRON 100-1621 HAND AUGER <br /> DE 9/2/03 DRILLING INC 22888 South Kasson Rd STANDARD AUGER USB-1 <br /> Baring Surface Groundwater Depth(ft) Total Drive Drop <br /> Diam(in) Elev(ft) SZ 7 Feet,First Depth(ft wt(lbs) Dist(in) <br /> 4 105 <br /> o � <br /> Well y <br /> _ Description ? <br /> Construction = p <br /> BACK- SANDY SILT with CLAY(ML) very dark grayish-brown(2 5Y 3/2),fine-grained <br /> " FILLED to sand,trace clay,soft,moist,strong reaction to hydrochloric acid,no hydrocarbon odor <br /> " SURFACE (0,20,70,10) <br /> WITH <br /> NATIVE <br /> MATERIAL <br /> BENTONIT <br /> TO WITHIN <br /> T OF 5—iLSANDY SILT(ML) olive brown(2 5YR 4/4),fine-grained sand,trace clay,soft, 13 <br /> SURFACE moist,no reaction to hydrochloric acid,no hydrocarbon odor(0,40,50,10) <br /> SZ <br /> NOTE Boring backfilled to approximately 3 feet from surface grade with hydrated <br /> 10 bentonite Backfilled to surface grade with native material <br /> 25 <br /> BORING TERMINATED AT 10 5 FEET <br /> 15- <br /> 20— <br /> The <br /> 520The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling Predominant material types shown on the log may contain different materials and the change from <br /> one predominant material type to another could be different than indicated Descriptions on this log apply only at the specific location <br /> at the time of drilling and may not be representative of subsurface conditions at other locations or times <br /> Project No 77CH 11621 15 Date 09/12/03 MK Log of Boring <br /> 11621_091103 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 1 of 1) <br />