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Cambria Environmental Technology, Inc BORING/WELL LOG <br /> 270 Perkins Street <br /> Sonoma, California 95476 <br /> Telephone (707) 935-4850 <br /> Fax (707) 935-6649 <br /> CLIENT NAME Shell Oil Products US BORING/WELL NAME MW-4 <br /> JOB/SITE NAME Shell-branded Service Station DRILLING STARTED 13-Sep-02 <br /> LOCATION _ _770_0 Moreland Street,Stockton DRILLING COMPLETED 13-Sep-02 <br /> PROJECT NUMBER 0953 WELL DEVELOPMENT DATE(YIELD) 17-Sep 02(55 gallons) <br /> DRILLERGregg Drilling _ GROUND SURFACE ELEVATION 30 27 ft above msl <br /> DRILLING METHOD ^ Hollow-stem auger^� � TOP OF CASING ELEVATION 29 78 ft above msl <br /> BORING DIAMETER 10" SCREENED INTERVAL 55 to 70 fb <br /> LOGGED BY G Mammin} DEPTH TO WATER(First Encountered) _.63 0-ft(13-Sep-02) <br /> REVIEWED BY J Neely,RG 6927 DEPTH TO WATER(Stalk) 62 0 ft(30-Sep-02) 1 <br /> REMARKS <br /> U) !— U ~ <br /> CL C) a w ¢O LITHOLOGIC DESCRIPTION WELL DIAGRAM <br /> J <br /> E: m� < W O (3 Op <br /> ASPHALT 0 5 <br /> Clavev SILT,(ML),very dark gray(10YR 311),moist, <br /> 20%clay,75%silt,5%fine sand,low plasticity <br /> 00 7 MW-4- 5 @5'-dark yellowish brown(10YR 314),very stiff,15%clay, <br /> 10 5 5' 80%silt,5%fine sand <br /> i <br /> 00 14 MW-4-9' <br /> 1B <br /> i ,0 <br /> 00 ,1s M 94 ML <br /> ®14'- d IT,(ML),5%clay,75%silt,20%fine <br /> 15 sand,no plasticity <br /> 8 <br /> 00 12 M 9, 20 @19'-5%clay,65%silt,30%fine sand <br /> i <br /> 00 11� MW-4- <br /> 241 25 <br /> Portland Type <br /> 0 <br /> 270 til <br /> 0 <br /> J <br /> 1W 00 y MW-4 <br /> O s 29" SM Silty SAND,(SM),dark brown (10YR 313), medium <br /> a dense,moist,5%clay,30%silt,65%fine sand <br /> CD <br /> 2 320 <br /> 9 <br /> LL' 00 MW-4- <br /> 34' SAND,(SP),dark grayish brown(2 5Y 412),medium <br /> Cb 35 dense,moist,5%sill,95%fine sand <br /> I110 ' <br /> $ SP <br /> a <br /> 00 'z MW-4- <br /> W 27 39'„ 40 039' Gravelly SAND,(SP),dense,wet,5%silt,80% <br /> i <br /> Continued Next Page i RAGE } OF 2 <br />