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R p LOG OF BORING MW-8 <br /> Environmental (Page 2 of 2) <br /> Humbrook Holdings LLC Date Started/Completed 10/8/2013 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:2170707.2/6346990.2 <br /> MW-7, MW-8,and Borings ROM-1 and CPT-1 1 Drilling Company/Driller.All Well Abandonment/J.Cela Casing Elev. :27.75 <br /> Sample Interval Sampler Type <br /> _ Lab Sample SS Split Spoon <br /> Int.Sampled ST Shelby Tube <br /> ti U 1777 Lost PS Piston Sampler ? Well: MW-8 <br /> 29 <br /> C Surf. = AL Clear Acetate a m O <br /> n U <br /> £ Elev. N a 3 <br /> 0 26.17 U DESCRIPTION a E Lab No. m <br /> 35 <br /> • -7 0 33 WELL CONSTRUCTION <br /> MW-8-36' 45 Date Compl. :10-8-13 <br /> Hole Diameter :8.25 in. <br /> Drill.Method :HSA <br /> WELL CASING: <br /> Material :Sch.40 PVC <br /> CL Diameter :2-in. <br /> • 40 12 0 19 <br /> 38 Joints :flush-thread <br /> MW 8�1' 41 41 WELL SCREEN <br /> Material :Sch.40 PVC <br /> Diameter :2-in. <br /> Joints :flush-thread <br /> 43 Slot Spacing :0.0104n. <br /> CLAYEY SILT:60%silt,30%clay, SAND PACK :No.2112 Sand <br /> • <br /> 45--.17 10%fine grained sand;dark 15 45 TRANSITION :Bentonite chips <br /> yellowish brown(10YR/4/4);low 0 25 <br /> plasticity, hard,moist MW-8-46' 41 ANULAR SEAL:Neat Cement <br /> SURFACE :8-in.dia. <br /> ML COMPLETION :steel well box <br /> Notes: <br /> • <br /> 50---22 0 28 San Joaquin Co EHD Permit <br /> _ _ _ MW-8-51' 44 #68139 <br /> SILT WITH SAND/SILTY SAND:50 <br /> to 70%silt,30 to 50%fine grained ` Depth to GW 48.10 8.btc on <br /> sand;wet to saturated - 10/16113 <br /> ALIS first groundwater encountered at <br /> approximately 53 feet below ground <br /> • <br /> 55---27 surface0 17 <br /> 29 <br /> SILTY CLAY WITH SAND:50% MW-8-56' 40 <br /> clay,35%silt, 15%fine sand; <br /> CL strong brown(7.5YR/4/6),low <br /> plasticity, hard,moist - <br /> . <br /> 60---32 SILTY CLAY:60%clay,35%silt, 20 60 <br /> 5%fine grained sand;strong 0 MW-8-61' 29 <br /> brown(7.5YR/416),low plasticity, 27 <br /> hard, moist to wet <br /> • 65 -37 <br /> 70 <br />