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• <br /> R o LOG OF BORING MW-4 <br /> Environmental (Page 1 of 2) <br /> Huntbrook Holdings LLC Date Started/Completed 10/7/2013 Drill Rig :CME-75 <br /> 3138 East Main Street Hole Diameter :8.25-in. Logged By :M.Berrington,PG#7124 <br /> Stockton,CA Drilling Method :Hollow stem auger Survey By :Morrow Surveying <br /> Installation of Monitoring Wells MW-4.MW 6, Sampling Method :2.25-in.xl8-in.split spoon Northing/Easting Coord:2170789.4/6347071.1 <br /> MW-7, MW-8,and Borings RDM-1 and CPT-1 Drilling Company/Driller.All Well Abandonment/J.Cela Casing Elev. :28.58 <br /> Sample Interval Sampler Type <br /> _ Lab Sample SS Split Spoon <br /> • 0 Int.Sampled ST Shelby Tube Z <br /> LL U Q Lost PS Piston Sampler IF Well: MW-4 <br /> c Surf. = AL Clear Acetate En m Elev. u)28.82 U DESCRIPTION a sLab No. <br /> n <br /> • 0 28 Native/Topsoil Surface _ _ WELL CONSTRUCTION <br /> CLAY:75%clay,20%silt,5%fine Date Compl. :10-7-13 <br /> grained sand;dark brown Hole Diameter :8.25 in. <br /> (7.5YR/3/4),very stiff to hard,low Drill.Method :HSA <br /> plasticity, moist WELLCASING: <br /> Material :Sch.40 PVC <br /> Diameter :2-in. <br /> • 5 0 20 Joints :flush-thread <br /> 23 MW-4-6' 0(5" WELLSCREER <br /> Material :Sch.40 PVC <br /> CL Diameter :2-in. <br /> Joints :flush-thread <br /> Slot Spacing :0.010-in. <br /> SAND PACK :No.2/12 Sand <br /> • 10 0 MW-4-10.5' 0(5" TRANSITION :Bentonite chips <br /> 18 ANULAR SEAL:Neat Cement <br /> SURFACE :8-in.dia. <br /> COMPLETION :steel well box <br /> SILT:70%silt,25%clay,5%fine Notes: <br /> grained sand;strong brown <br /> • 15 (7.5YR/5/6), nonplastic,hard,moist 0 MW-4-15.5' 016" San Joaquin Co EHD Penni[ <br /> 3 #68151 <br /> Depth to GW 49.00 ft.blc on <br /> 10/16/13 <br /> • 20 CLAYEY SILT:70%silt,30%clay; 0 MW-4-20.5' 0(6" <br /> 8 dark yellow brown(10YR/5/6),low <br /> plasticity, hard, moist <br /> ML <br /> 25 SILT: 85%silt, 10%clay,5%fine MW-4-25.5' 0(6" <br /> • 3 grained sand;yellowish red 0 <br /> (5YR/4/6)and light yellowish brown <br /> (2.5Y/6/3); nonplastic, hard,moist <br /> • 30 CLAYEY SILT:75%silt,20%clay, 0 MW-4-30.5' 0(6" <br /> _2 5%fine grained sand;yellowish red <br /> (5YR/4/6);low plasticity,hard, <br /> moist <br /> '" 35 <br />