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Advanced BORING LOG
<br />■ GeoEnvironmental, Inc.
<br /> BOREHOLE NO MWt
<br /> 837 Shaw Road, Stockton, CA 95215
<br /> (209)467-1006 FAX (209)467-1118 TOTAL DEPTH 40'
<br />' Project R M B Garage Drilling Co Mitchell Drilling Environmental
<br /> Site Location 715 North Hunter Street Rig/Auger Type CME-75/8 25"
<br />' Stockton, California 95205 Logged By Donna J Sexton
<br /> Reviewed By Calvin F Lee
<br />' Project No AGE-NC-01-0877 Date(s) Drilled 04 September 2003
<br /> Notes Ground water encountered at 25 feet b s g sz Water level during drilling Page 1 of 2
<br />' m: Water level in completed well
<br /> Depth Sample Blows PID Soil USCS Class and Well Well
<br />' ID (per 6") (ppm) Symbol Sod Description Completion Description
<br />' 0 Well cover
<br /> Watertight locking
<br /> cap
<br /> -5 M W 1-5 3/9/20 84
<br /> CH Dark brown,dry,CLAY,high toughness,high Cement grout seal from
<br /> 1'to 15'bs
<br /> Fir = plasticity,hardpan,no hydrocarbon(HC)odor g
<br /> �SM Light Brown,dry,SILTY FINE SAND 5%silt,
<br /> oorly graded,no HC odor
<br />' -10 MWi-10 7/11/14 71
<br /> CL Yellow brown,dry,SILTY CLAY, 10%silt,5%
<br /> fine sand,moderate toughness,low plasticity,no
<br />' hydrocarbons(HC)odor
<br />' -15 M W 1-15 12/19/30 129 = Bentonite seal from 15'
<br /> SM Yellow brown,dry,SILTY SAND,fine sand,5-
<br /> 10%silt,poorly graded,low p]asticiy and toughness,no to 18' bsg
<br /> HC odor
<br />' #3 sand from l8'to 40'
<br /> bsg
<br />' -20 MW1-20 10/14/18 150
<br /> 5M Light brown,dry,SILTY SAND,fine grained,
<br /> poorly graded,fines 5%-l0%,low toughness and
<br /> plasticity,no HC odor
<br /> 1
<br /> I
<br /> MW I-25 10/19/25 68 CL Blue gray,dry,SILTY CLAY,5%silt,medium to
<br /> high plasticity,high toughness,strong HC odor I
<br /> I
<br /> 0 MWl-30 10/37/31 71 _ SM Dark brown,saturated,SILTY SAND,fine sand, Screened interval from
<br /> well graded, 10%silt,10%clay,5%gravel up to 0 5", 20'to 40'bsg
<br />' strong HC odor
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