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R o <br />LOG OF BORING MW -6 <br />EnvironmqentaI <br />(Page 1 of 2) <br />Huntbrook Holdings LLC <br />Date Started/Completed 10/9/2013 Drill Rig : CME -75 <br />3138 East Main Street <br />Hole Diameter : 8.25 -in. Logged By : M. Berrington, PG #7124 <br />Stockton, CA <br />Drilling Method : Hollow stem auger Survey By Morrow Surveying <br />Sampling Method : 2.25-in.x18-in. split spoon Northing/Easting Coord: 2170914.7/6346928.4 <br />Installation of Monitoring Wells MW -4. MW -6, <br />MW -7, MW -8, and Borings RDM-1 and CPT -1 <br />Drilling Company/Driller: All Well Abandonment/J. Ceia Casing Elev. :27.41 <br />Sample Interval <br />Sampler Type <br />Lab Sample <br />SS Split Spoon <br />0 Int. Sampled <br />ST Shelby Tube <br />m <br />® Lost <br />PS Piston Sampler <br />Well: <br />MW <br />-6 <br />La) <br />U <br />S <br />Surf. <br />CO <br />= <br />M <br />AL Clear Acetate <br />Q <br />0 <br />Elev. <br />0 <br />27.64 <br />? � <br />DESCRIPTION <br />9 <br />Lab No. <br />m <br />cn <br />Native/Topsoil Surface _ _ _ <br />WELL CONSTRUCTION <br />27 <br />CLAY: 75% clay, 20% silt, 5% fine <br />Date Compl. : 10-9-13 <br />grained sand; dark brown <br />Hole Diameter : 8.25 in. <br />(7.5YR/3/4), very stiff to hard, low <br />Drill. Method : HSA <br />plasticity, moist <br />WELL CASING <br />CL <br />Material : Sch. 40 PVC <br />Diameter :2 -in. <br />5 <br />20 <br />Joints : flush -thread <br />22 <br />0 <br />MW -6-5' <br />0(5" <br />WELL SCREEN: <br />Material : Sch. 40 PVC <br />n. <br />Joints Diameter : flus <br />: flush -thread <br />SILTY SAND: 60% fine grained <br />sand, 40% silt; strong brown <br />Slot Spacing : 0.010 -in. <br />SM <br />(7.5YR/5/6), very dense, moist <br />SAND PACK : No. 2/12 Sand <br />10 <br />MW -6-10.5' <br />0(6" <br />TRANSITION : Bentonite chips <br />CLAY:60% clay, 30% silt, 10% fine <br />17 <br />grained sand; light olive brown <br />ANULAR SEAL: Neat Cement <br />(2.5Y/5/4); low plasticity, hard, <br />moderately to well indurated, moist <br />SURFACE : steen.l <br />well <br />COMPLETION :steel well box <br />Notes: <br />15 <br />CL <br />0 <br />MW -6-15.5' <br />0(5" <br />12 <br />dark yellowish brown (10YR/4/4) <br />San Joaquin Co EHD Permit <br />#68150 <br />with abundant white calcium <br />carbonate "veining" <br />Depth to GW 47.83 ft. btc on <br />10/16/13 <br />20- <br />0(6" <br />SILT: 80% silt, 10% clay, 10% fine <br />0MW-6-20.5' <br />7 <br />grained sand; dark yellowish brown <br />ML <br />(10YR/4/6), nonplastic, hard, moist <br />SILTY CLAY: 55% clay, 40% silt, <br />5% fine grained sand; dark <br />25 <br />CL <br />yellowish brown (10YR/3/6), low <br />0 <br />MW -6-25.5' <br />20 <br />2 <br />plasticity, hard, moist <br />0(5" <br />------------------------------------------------------- <br />SILTY SAND: 60% fine grained <br />sand, 40% silt; yellowish red <br />SM <br />(5YR/4/6), very dense, moist <br />30- <br />0 <br />25 <br />-3 <br />MW -6-31' <br />26 <br />CLAYEY SILT: 50% silt, 40% clay, <br />30 <br />10% fine grained sand; olive brown <br />ML (2.5Y/4/3); low plasticity, hard, <br />moist <br />35 <br />>` <br />.'' <br />35 <br />