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QqEEDD <br />LOG OF BORING MW -4 <br />En\filreDnmt-_ntaI <br />(Page 2 of 2) <br />Huntbrook Holdings LLC <br />Date Started/Completed 10/7/2013 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: 2170789.4/6347071.1 <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. : 28.58 <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: MW <br />-4 <br />La) <br />U <br />S <br />Surf. <br />= <br />AL Clear Acetate <br />Q <br />a <br />0 <br />Elev. <br />0 <br />28.82 <br />? � <br />DESCRIPTION <br />9 <br />Lab No. <br />m <br />cn <br />35 <br />— — — a — — o <br />SILTY CLAY: 50% clay, 50% silt; <br />0 <br />MW -4-35.5' <br />0(6" <br />WELL CONSTRUCTION <br />7 <br />brown (7.5YT/5/4); low plasticity, <br />Date Compl. : 10-7-13 <br />hard, moist <br />Hole Diameter : 8.25 in. <br />Drill. Method : HSA <br />CL <br />WELL CASING: <br />Material : Sch. 40 PVC <br />Diameter :2 -in. <br />40 <br />MW -4-40.5' <br />0(6" <br />Joints : flush -thread <br />12 <br />SILT: 70% silt, 20% clay, 10% fine <br />0 <br />41 <br />WELL SCREEN: <br />grained sand; dark brown <br />Material : Sch. 40 PVC <br />(7.5YR/3/4); nonplastic, hard, moist <br />Diameter :2 -in. <br />MIL-43Joints <br />: flush -thread <br />Slot Spacing : 0.010 -in. <br />SAND PACK : No. 2/12 Sand <br />45 <br />0 <br />MW -4-45.5' <br />0(5" <br />45 <br />TRANSITION : Bentonite chips <br />17 <br />SILTY SAND: 60% fine grained <br />sand, 40% silt; pale brown, moist <br />ANULAR SEAL: Neat Cement <br />SILT: 70% silty, 25% clay, 5% fine <br />SURFACE :8 -in. dia. <br />grained sand; reddish brown <br />COMPLETION : steel well box <br />(5YR/4/4); nonplastic, hard, moist <br />Notes: <br />50 <br />yellowish red (5YR/4/6), moist to <br />18 <br />-22 <br />wet <br />0 <br />MW -4-50.5' <br />25 <br />San Joaquin Co EHD Permit <br />32 <br />#68151 <br />first groundwater encountered at <br />Depth to GW 49.00 ft. btc on <br />approximately 52.5 feet below <br />10/16/13 <br />ground surface <br />55 <br />ML <br />saturated <br />11 <br />27 <br />0 <br />MW -4-55.5' <br />19 <br />25 <br />60 <br />contains thinly interbedded silty <br />_32 <br />sand from 60 to 65 feet ML/SM <br />( ) <br />0 <br />MW -4-60.5' <br />nm <br />nm <br />nm <br />17 <br />0 <br />22 <br />65 <br />35 <br />65 <br />37 <br />70 <br />