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p 1111 Broadway, 6th FI BORING DMW-5B SHEET 4 OF 4 <br /> Geosyntec Oakland, CA 94607 START DATE 2/20/2014 ELEVATION: <br /> consultants Phone: (510)836-3034 FINISH DATE 2/24/2014 GROUND SURF. 7.25 ft <br /> Fax: (510)836-3036 LOCATION 800 W Church St,Stockton TOP OF MONUMENT6.75 ft <br /> PROJECT Dopaco DATUM NAVD88 <br /> WELL B GS FORM: BOREHOLE LOG NUMBER WR1194 WATER DEPTH: ft bgs <br /> ORE GE <br /> DESCRIPTION SAMPLE <br /> 1)Unit/Formation,Mem.7)Plasticity O (0 io o Q <br /> DEPTH 2)Soil/Rock Name 8)Density/Consistency U OJ WELL COMPLETION O Z W W >- (0 o COMMENTS <br /> 3)Color 9)Structure = _j H w a a w Z o <br /> (ft-bgs) 4)Moisture 10)Other(Mineralization, d I j DETAILS Q a } > p <br /> > F O Q w 1)Rig Behavior <br /> 5)Grain Size Discoloration,Odor,etc. 0 W w 2 <br /> Q O w 2)Air Monitoring <br /> 6)Percentage (0 W rn m W <br /> (gravel,sand,fines) <br /> a <br /> fines[0,0, 100];no plasticity;stiff _53 40 0 8:55 <br /> ................................................... <br /> No recovery <br /> -54 <br /> 62 <br /> SILT ML :dark olive gray(5Y 3/2);moist; -55 <br /> fines[0,0, 100];no plasticity;medium stiff 55 <br /> 62 <br /> -56 62.5 <br /> 64 <br /> -57 <br /> Slough _58 <br /> 90 0 9:05 <br /> POORLY-GRADED SAND with silt <br /> 66 S( P-SM):dark olive gray(5Y 3/2);wet; <br /> (medium sand with fine sand and fines[0, i -59 <br /> t90, 10]_loose___________— <br /> SILT(ML):dark olive gray(5Y 3/2);moist; <br /> fines[0,0, 1001;no plasticity;stiff Screen:2"diameter Sch 40 -60 <br /> PVC pipe,horizontal 0.020" <br /> 68 slots(57-67 ft bgs). <br /> -61 <br /> -62 <br /> 70 @ 70ft presence of mica -63 <br /> 90 0 9:15 <br /> -64 <br /> 72 -65 <br /> Bentonite backfill:Wyo-Ben <br /> Enviroplug medium chips <br /> @ 73-75ft presence of gray/white mottling (72.5-80 ft bgs). -66 <br /> (20%) <br /> 74 <br /> -67 <br /> -68 60 0 9:45 <br /> @ 75.5ft friable claystone <br /> 76 <br /> -69 <br /> N <br /> M <br /> 0 -70 <br /> U <br /> Lu <br /> 78 @ 78-79ft presence of gray/white mottling 71 <br /> Lu (20%) <br /> 55 <br /> 'a <br /> 78.5 <br /> o BOREHOLE TERMINATED. Total depth= 72 79 <br /> 80 80 ft bgs <br /> o CONTRACTOR: Gregg NORTHING:2167604.1 LOGGER ODR/AMS REVIEWER FM <br /> Lu <br /> EQUIPMENT: Mobile B80/Marl M11 EASTING: 6329973.9 NOTES: Mud rotary 0-50ft while driving conductor casing; <br /> DRILL MTHD: Mud Rotary/HSA COORDINATE SYSTEM: hollow-stem auger drilling 50-80ft <br /> m HAMMER TYPE: NAD83 <br /> w BOREHOLE DIAMETER: (10"conductor)/8.75" SEE KEY SHEET FOR SYMBOLS AND ABBREVIATIONS <br />