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<br /> Advanced BORING LOG
<br /> GeoEnvironmental, Inc.
<br /> � BOREHOLE NO B-1
<br /> fs� 4005 North Wilson Way, Stockton, CA 95205
<br /> (209)467-1006 FAX (209) 467-1118 TOTAL DEPTH 40
<br />' Project LATHROP GAS &FOOD MART Drilling Co Enviroprobe
<br /> Site Location 14800 South Highway 99 Rig/Auger Type GeoProbe 5400/125
<br />' Manteca,California Logged By Donna Sexton
<br /> Reviewed By Calvin Lee
<br /> Project No AGE-NC-03-1080 Date(s) Drilled 02 August 2004
<br /> Notes Q Water level during drilling Page 1 of 1
<br /> m Water level in completed well
<br /> Depth Sample Blows PID Soil USCS Class and Well Well
<br /> ID 1 ft (ppm) Symbol Sod Description Completion Description
<br /> 0
<br /> ' _5 B1_5 55 SM Dark brown,SILTY SAND,fine grained,poorly
<br /> graded,moist,slight hydrocarbon(HC)odor
<br /> –10 BI-10 0 SM Dark brown,SILTY SAND,fine grained,poorly
<br /> _= graded,moist,no HC odor
<br /> 1
<br /> –15 B1-15 200 == SM Light brown,SILTY SAND,poorly graded,
<br /> moist,slight HC odor
<br /> ' –2 0 B1-20 158 — — NII. CLAYEY SAND,stiff,low plasticity,moderate
<br /> consistency,moist,no HC odor
<br /> SM Light brown,SILTY SAND,HC odor
<br /> –25 BI-25 not CL Orange brown,CLAY,low plasticity,moderate
<br /> taken consistency,low toughness,moist,no HC odor
<br /> (NT)
<br /> ' BI-30 NT _–_ MH Orange brown,SANDY SILT,moderate
<br /> plasticity,low consistency,low toughness,moist,no
<br /> ' HC odor
<br /> ' –35 BI-35 NT CL Orange brown,SILTY CLAY,moderate
<br /> plasticity,moderate consistency,low toughness,
<br /> moist,no HC odor
<br /> '
<br /> –40 BI-40 NT – – – ME Gray brown,SILT,low plasticity,moderate
<br /> = consistency,moderate toughness,moist,no HC odor
<br /> -45
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