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LEE & PIERCE, INC. LOG OF BORING SB-1 <br /> PROJECT GUBARY LOCATION 17717 E.HWY 120,RIPON.CA PROJECT NO. EN-08640 <br /> DATE DRILLED 06/11/08 LOGGED BY JOHN LANE,LEE&PIERCE.INC. REVIEWED BY JOHN P.LANE RG No.6725___ <br /> DRILLING COMPANY V&W DRILLING,C57-720940 DRILLER JUAN FRANCO <br /> METHOD --HOLLOW STEM AUGER <br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED 55 FT DEPTH TO WATER INITIAL 55.5 Fr STATIC 52 FT <br /> CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT <br /> SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL FT TO FT <br /> FILTER PACK TYPE NA INTERVAL FT TO FT <br /> SURFACE SEAL TYPE NEAT CEMENT GROUT INTERVAL 0 FT TO 32 FT <br /> COMMENTS: GROUNDWATER SAMPLE COLLECTED THROUGH TEMPORARY 3/4"PVC CASING PAGE 2 OF 2 <br /> WELL DEPTH PID SAMPLE ID U.S.C.S. DESCRIPTION <br /> DETAIL (FT.) (PPM) BLOWCOUNT LOG <br /> A A T 04" ASPHALT <br /> 2 <br /> 4 <br /> 0 NO SAMPLE AT 5 FEET.CUTTINGS OBSERVATION <br /> s <br /> SP 4"-11.5/15' POORLY GRADED SAND(SP): >95%FINE,SUBANGULAR TO SUBROUNDED <br /> SAND;t5%FINES;MEDIUM DENSE,DARK TO LIGHT BROWN,NO ODOR, <br /> 8 MOIST,WEAK CEMENTATION,HOMOGENEOUS <br /> (COULD BE FILL MATERIAL) <br /> 1 p GL-5131-I0.5 <br /> 9 <br /> 15 <br /> 16 <br /> _12- <br /> 11,5/15-16.5/20' <br /> 211,5/15-16.5/20' SILTY SAND(5M): 70%FINE SAND;30%FINES;MEDIUM DENSE,TAN, <br /> Z NO ODOR,MOIST,WEAK CEMENTATION,HOMOGENEOUS <br /> 14 <br /> w 5 &L-591-15.5 <br /> SM <br /> 16 12 <br /> 15 <br /> m <br /> 16.5/20-21.5/25' SILT(ML): 45%SND: >95%FINES,LOW DRY STRENGTH,SLOW DILA- <br /> _18— TANCY,LOW TOUGHNESS,MEDIUM PLASTICITY,STIFF,DARK BROWN, <br /> p NO ODOR,MOIST,HOMOGENEOUS <br /> GL-581-2i /I <br /> 20 20 4 <br /> ML <br /> 5 <br /> 5 <br /> —22- <br /> 21.5/25-29 <br /> 221.5/25-29 SILTY SAND(SM):60%FIN,5U8ROUNDED SAND,40%FINES;MEDIUM <br /> DENSE,MEDIUM BROWN,NO ODOR,MOIST,HOMOGENEOUS <br /> 24- <br /> 0 GL-513I-25.5 <br /> 7 SM <br /> 26 I4 <br /> 17 <br /> —28- <br /> -30— 0 GL SB1-30.5 <br /> 6 Sp 29-34/36' POORLY GRADED SAND(59):>90%FINE-MEDIUM SAND;40%FINES: <br /> 13 MEDIUM DENSE,MEDIUM BROWN,NO ODOR,MOIST,WEAK <br /> 32 14 CEMENTATION,HOMOGENEOUS <br /> 34 NO SAMPLE AT 35 FEET;CUTTINGS 085ERVATION <br /> 38 <br /> SM 34/36-41' SILTY SAND(SM): 80%FINE,SUBANGULAR-SU8ROUNDED SAND; <br /> 20%FINES;MEDIUM DENSE,MEDIUM BROWN,NO ODOR,MOIST, <br /> 38 HOMOGENEOUS,IRON OXIDE STAINING <br /> 40 <br />