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CONDOR EARTH GEOLOGICAL L O G <br /> TECHNOLOGIES, INC. <br /> DBK4-730- PROJECT NO 2993A DATE 9/11/02 TD 55 0' <br /> SURF COND Concrete ELEV ELEV REF Su!ve5+ <br /> 40, 10 LOGGED BY M McRivette WELL CONSTRUCTION SPECS <br /> PROJECT Six-Block Phase It DRILL EQUIP Geoprobe 6600 TOTAL CASING DEPTH NIA <br /> FLUSH NIA STICKUP NIA <br /> CLIENT City of Stockton HAMMER WT/FALL N/A CASING DIA NA TYPE NIA <br /> LOCATION 730 1- Miner HAMMER TYPE Hydraulic SLOT SZ NIA SAND SZ NIA <br /> - --. SCREEN INT NIA <br /> DRILLER V►ronex GW DEPTH 34 19 ft 9/11/02 SAND INT NIA <br /> BENT INT NIA <br /> C-57 NO HOLE DIA 2" GROUT INT NIA <br /> _j � F w � z � cn WELL <br /> C 2 z 0 n p ? O SOIL DESCRIPTION REMARKS CONSTRUCTION <br /> p U¢ m O U DIAGRAM <br /> a <br /> CH ConcreteHand augered to 5 0' <br /> CLAY,dark brown,moderately moist, calcium Slight organic odor <br /> carbonate stringers,with organics, stiff <br /> 5 CLSli ht odor <br /> CLAY,medium olive brown,moderately g <br /> DBK4 58" moist,calcium carbonate stringers,stiff PID at 6 5'=63 9 <br /> 730-10-6 ppm <br /> Moderate odor <br /> 49 10 DBK4- 47" CLAY,medium olive brown,moderately PID at 9 5'= 898 <br /> 730-10-10 moist,calcium carbonate and rust-colored Str odor <br /> Strong <br /> stringers, sand laminations between 10 5'and <br /> 12 5',stiff <br /> 15 DBK4- 21" CLAY WITH SILT olive green,moderately PID at l4 5=3432 <br /> 730-10-15 moist,stiff ppm <br /> Exceeded PID <br /> measuring <br /> capability* <br /> ElStrong odor <br /> 20 DBK4- 55" CL-ML SILTY CLAY,moderately moist,calcium PID at 20'=3800 <br /> 730-10-20 carbonate stringers,stiff ppm* <br /> Strong odor <br /> SILTY CLAY WITH SAN_D,medium olive PID at 24 5'=3200 <br /> 00 <br /> 25 DBK4- 0" brown,moderately moist, calcium carbonate ppm* <br /> 730-10-25 stringers, stiff Section lost during <br /> 00 0,01 recovery PID <br /> sample collected <br /> from lost material <br /> PID at-28'=3200 <br /> m* <br /> #:a73 <br /> K4- 58" SILTY CLAY, green,moderately moist, pD 31'—3500 <br /> -10- moderately stiff0 5 ppm <br /> NOTES Boring 1313K4-730-10 backfilled with 3-sack neat cement Well remained open until the end of the day <br /> Water was collected through a PVC screen by 318"tubing with check valve <br /> N/A=Not applicable PID=photoionization detector ppm =parts per million PG. 1 OF 2 <br />