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Project: ARCO Station #6420 Log of Monitoring Well: <br /> Location 1711 E Xosenute Avenue,Manteca,CA Project Number 38465092 MW-13D <br /> ro d <br /> 0 8 u �q U <br /> LITHOLOGY DESCRIPTION WELL CONSTRUCTION <br /> 5013 00 0710 <br /> Sampler full due to heaving <br /> 45 3!; 00 0725 45 <br /> Clay(CL) Grayish brown,trace fine grained sand mncaceous <br /> 5014 00 0730 medium plasticity,stiff,moist <br /> Clayey Sand(SC) Grayish brown 40%fine to medium grained <br /> sand very dense moist to wet <br /> -j- <br /> 50155 00 0735 Silty Sand(SM) Grayish brown with yellowish brown mottling, <br /> 55 60%fine grained sand nucaceous,very dense wet to <br /> 50 saturated Silt decreased to 15% color change to reddish brown 50 <br /> 5013 0 0 0740 Sandy Silt(ML) Reddish brown,65%silt,micaceous very stiff <br /> -wet to saturated Color change to olive brown <br /> 50/4 00 0745 Silty Sand(SM) Olive brown 60%fine granted sand micaceous <br /> very dense saturated <br /> 50155 00 0750 <br /> 55 55 <br /> 5013 00 0755Clay(CL) Light olive gray 10%fine grained sand 10%silt <br /> micaceous low plasticity very stiff wet to saturated <br /> 5015 0 0 0800 <br /> 58-61 Bentonite Seal <br /> 60 5015 5 0 0 0810 Silty Sand(SM) Reddish brown,60%fine to medium granted 60 <br /> sand micaceous,dense wet to saturated <br /> 50/3 00 0915 <br /> 50%fine to coarse grained sand 40%silt,10%gravel up to 1/4 <br /> micaceous very dense saturated <br /> 50/3 00 0825 <br /> 65 80 90%fine to coarse grained sand 10-20%silt,color change to 65 <br /> olive brown 2-tach SCH 40 PVC, <br /> 0 020-inch Slot Screen 63-68, <br /> Driller reports major heaving #3 Filter Pack Sand <br /> ao 00 osao <br /> 5015 00 0855 Dmlled past last sample point at 68 to aid in placing well with <br /> heaving sands <br /> 70 70 <br /> UM2870 Gateway Oaks Dr Ste 300 <br /> Sacramento CA 95833 <br /> 916-6792000 <br />