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CAMP DRESSER & McK6 Sheet 1 of 2 <br /> , CDM <br /> EXPLORATO�6 BORING <br /> 100 Pringle Ave,Suite 300 <br /> �,. Walnut Creek,CA 94596 B-1/PZ-1 <br /> Client: City of Stockton Project Name: Brookside Pump Station <br /> Project Location: Brookside Road and 1-5 Project Number: 2500-29248 <br /> Drilling Contractor: Spectrum Exploration Inc. Surface Elevation(ft.): 86 <br /> Drilling Method/Rig: HSA/CME75 Total Depth(ft.): 41.5 <br /> 16- Drillers: Tom Sheeper/Tony Young Depth to Initial Water Level(ft. bgs): 20 <br /> Drilling Date: Start: 4/13/01 End: 4/13/01 Development Method: Surge Block, Pump <br /> Borehole Coordinates: Field Screening Instrument: PID <br /> ilr <br /> N E Logged By: HS Young <br /> Development Date. Start 4/13/01 End 4/17101 Top of Riser Elevation(ft.): na <br /> Jr c <br /> a) � c <br /> m E tm Z6 (n E.4 <br /> 2.9^ a0 <br /> n a Sample N Q en E a) �r Material o.o Depth Well Construction <br /> E Number s o60 <br /> c m o `-'M Description m� (ft.) Detail <br /> mCD 0 <br /> ii. <br /> L <br /> V <br /> 86.0 Ground Surface <br /> CL FILLHALT 0 Well Completion- <br /> AS B1-1.5 616 / 8-inch diameter, <br /> CLAY,yellowish brown(10YR5f4), flush mount,traffic 84.0 <br /> moist,soft,,trace gravel rated well box 2.0 <br /> 8-inch diameter <br /> borehole <br /> 81.0 <br /> w. 2 CL CLAY,dark grayish brown(10YR412), %, 5 Hole Plug 318-inch <br /> SS B1-5 2 18/18 wet,very soft,medium plasticity,low i bentonite pellets <br /> toughness,medium to high dry strength, <br /> highly disturbed,minor dark brown clay, <br /> trace coarse sand and Coarse gravelRiser Pipe-2-inch <br /> (4mm) ,' diameter SCH40 <br /> PVC,flush coupled, <br /> ' 76.0 22.9 feet <br /> 2 CL ALLUVIUM(Oal) 10 <br /> f.. SS B1-10 3.8 2 18118 CLAY,grayish brown(2.5YR5/2),wet, z <br /> 3 very soft,low to medium plasticity, low '' 71.3 <br /> toughness,mottled with reddish black <br /> (2.5YR2.5/1)clay,relict rootlets,orange <br /> brown oxidation in fractures and patches ` Grout-95% <br /> Portland Type 1-11 <br /> _ _ f' 71.0 cement,5% <br /> 1 CL CLAY with SAND,grayish brown �: 15 bentonite powder <br /> SS B1 15 3.6 2 1e118 (2.5YR5/2),wet,very soft,fine grained <br /> 3 sand,minor(10%)clay,dark brown <br /> (10YR3/1),rootlets,trace gravel to <br /> 3 mm <br /> a Groundwater encountered at 20 feet 67.0 <br /> M during drilling ts.D <br /> 66.0 <br /> EXPLANATION OF ABBREVIATIONS REMARKS <br /> R DRILLING METHODS: SAMPLING TYPES: Boring Coordinates: 37-58-46,121-20-32(latitude and longitude <br /> Y <br /> HSA - Hollow Stem Auger AS - Auger/Grab Sample degrees minutes seconds) <br /> p SSA - Solid Stem Auger CS - Cal1.5'Rock <br /> Sampler Sewage like odor noted during auger removal. <br /> O� HA - Hand Auger BX - 1.5'Rock Core 9 9 9 <br /> m AR - Air Rotary NX - 2.1'Rock Core <br /> QTR - Dual Tube Rotary GP - Geoprobe <br /> FR - Foam Rotary HP - Hydro Punch <br /> L MR - Mud Rotary SS Split Spoon <br /> J RC - Reverse Circulation ST - Shelby Tube <br /> C> CT - Cable TOOT WS - Wash Sample <br /> = JET - Jetting OTHER: <br /> Lu <br /> D - Driving AGS - Above Ground <br /> s.. <br /> m DTC - DralThroughcas4ng Su face Reviewed by: MG Gray Date: 4/13/01 <br />