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WELL CONS I RUC] ION <br /> <br />HT ADSPACE <br />LITHOLOGY SAMPLE DATA i*T air:n*4/47S ..mrmm..z a <br /> <br />Depth. <br />fe*t <br />Box icKiNG CAP <br />V <br />SCH 40 <br />BLANK PVC <br />CASING <br />CEMENT <br />GROUT <br />2 INCH <br />DIAMETER <br />Graphic <br /> <br />L o Description <br />Vegetation at surface. <br />SANDY SILT (ML), very dark grayish brown (10YR 3/2). wet. <br />very sort, moderately plastic, 15-20% fine sand, <br />micaceous. <br />PEAT (PT), black (10YR 2/1), wet, very soft, interbedded with <br />highly plastic fines. <br />Lean CLAY (CL), black (10YR 2/1). moist stiff, moderately <br /> <br />— — plastic, mottled, light gray inclusions. <br />SAND (SP), very dark gray (10YR 3/1), wet, medium dense. <br />tine grained, poorly graded, trace silt. <br />SILT (ML), very dark gray (10YR 3/1), moist, very stiff, non <br />plastic. <br />BOTTOM OF BOR INC AT 16 FEET. <br />SorT,ole Penetration Field <br />No TB d Rate Screening <br />Interval (Blows/ft I <br />(Wm) <br />5 <br />2 218 <br />10 <br />45.8 <br />15 <br />23 <br />BENTONITE <br />PELLETS <br />*2/12 SAND <br />0-INCH DIk <br />BOREHOLE <br />24NCH <br />DIAMETER <br />PERT ORATED <br />PVC CASING <br />IS 010 inch <br />slots) <br />20 20 <br />Well elevation: <br /> <br />Date well drilled: April 20. 1999 <br /> <br />Drilling company: Spectrum <br />Drilled by: Floyd <br />Ryan <br /> <br />Sampling Method: Hollow-Stem Auger <br /> <br />Geologist: D. Kourda <br />EXPLANA I ION <br /> <br />Clay <br /> <br />Modified California Sampler <br /> <br />Silt <br /> <br />Water level at time of drilling <br /> <br />Sand <br /> <br />Gravel <br /> <br />Approved by. <br /> <br />WELL CONSTRUCTION AND LITHOLOGY FOR WELL W-234 (pagetof 1) <br />alb Tetra Tech EM Inc. <br />NCTS STOCKTON <br />Site] <br />(069-251B0201) VAT234 CDR 062900pcJMO/MJB