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ersEnvironmental Services,Corporation Boring Log: MW-19D/P/S <br /> 1600 Riviera Av_je,Suite 310 Page 1 of 2 <br /> Walnut Creek,CA 94596 <br /> 925 938.1600 <br /> Date: 8/31/2006 Logged By: Monami Datta Well Specifications <br /> Location:Roberts Number 1,Roberts Island,Stockton,CA Elevation <br /> Client:Port of Stockton GSE:0.94,0.94,0.89 TOC:0.6,0.58,0.54 <br /> ...................................................................................................................................... .................................................... <br /> Drilling Co.:Gregg Drilling.................................................................................................... Depth to Water <br /> . ....................... <br /> Drilling Method:8"Hollow Stem Auger Driller:Bobby Initial:25 ft. Static:10 ft. <br /> ...................................................................................................................................... .................................................... <br /> Well Sand Filter:2/12 Monterey Well Seal:Bentonite Total Well Depth:40 ft. <br /> ...................................................................................................................................... .................................................... <br /> Grout Materials and Method:Neat Cement Lat.:37 58.839 Long:-12123.494 <br /> ...................................................................................................................................... .................................................... <br /> Completion:Flush mounted Christy BoxPVC Diameter:2"PVC <br /> ...................................................................................................................................... .................................................... <br /> Groundwater Sampling Method:NA Screen Interval:3-7,11-15,3540 ft. <br /> ...................................................................................................................................... .................................................... <br /> Soil Sampling Method:CA Modified SPT 24" Screen Slot Size:0.010" <br /> � c m <br /> 0 0 <br /> rn it, a E N <br /> 0 g m d " Material Description Well Diagram <br /> r 3 0 a <br /> a — U <br /> 0 «� <br /> m <br /> O m lY O U) in O <br /> MW-19d MW-19 MW-19s <br /> Silty sand(SM)10 YR 6/2,pale yellowish brown,fine to medium grain, <br /> 10-15%non-plastic fines(silt),dry <br /> SM'. .:• <br /> 5 <br /> Organic black peat/clay(PT/CL),firm,low plasticity,presence of <br /> PT/ mottling,35%clay,soft <br /> CL <br /> 10 Q Organic black peat,as above,1 S%clay <br /> PT <br /> 0, d <br /> 15 <br /> Clay(CL)5Y 3/2,olive gray,medium to high plasticity,damp to moist <br /> CL <br /> 20Stiff clay(CL)5GY 3/2,grayish olive green,medium plasticity,moist <br /> CL <br /> 25 1 Clayey sand(SC)5GY 2/1,greenish black,5-10%clay,plastic fines,wet <br /> SC• ., <br />