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Project Name Well Number <br /> Former Arco 559 Monitoring Well Construction Log MW-2 <br /> Address Drilling Contractor Ground Surface Elevation: Top of Casing Elevation: <br /> 2085 East Main Street Cascade Drilling 22.03 21.70 <br /> Drilling Method Boring Depth Boring Diameter <br /> Stockton California Air Knife/Hollow Stem Auger 45 ft. 8.25 in. <br /> Logged By Approved By Sampling Method Well Depth Casing Type Well Screen Interval Slot Size <br /> E.Diaz R.Bussard Split Spoon 45 ft. 2"SCH40 PVC 25-45 ft. 0.010 <br /> Antea Group Project Number Headspace Monitoring Device Date Drilling Started Date Drilling Completed <br /> BPSTOCK191 PID 12/16/2019 1/9/2020 <br /> LITHOLOGY SAMPLING DATA <br /> U1 e 4 N <br /> N <br /> a T C Zo T N <br /> Y Graphic CO Visual N a E o 3 a Well Well a <br /> p U o o d a @ 3 0 .a m N <br /> w X09 Description U _ �' m m J Diagram Details o <br /> 0 Air Knife from 0 to 6.5 ft; Concrete: 0 <br /> No lithology logged 0-0.5 ft. <br /> 20 <br /> Neat Cement: <br /> 0.5-20 ft. <br /> 2"SCH40 <br /> 4.5-5 Blank PVC: <br /> 5 0-25 ft. 5 <br /> 15 No Recovery <br /> Silt;dark brown,90%fines,10%fine <br /> T7 <br /> ML sand,non-plastic,cohesive 8.5-10 100 5 <br /> as above;brown,95%fines,5%fine moist 0.1 7 <br /> sand,low plasticity <br /> 10 13 10 <br /> No Recovery <br /> 10 <br /> ML Silt;brown with organics,95%fines, 13.5-15 100 7 <br /> 5%fine sand,low plasticity,cohesive moist 0.1 10 <br /> 15 14 15 <br /> No Recovery <br /> 5 <br /> ML Silt with Sand;brown,85%fines,15% moist 18.5-20 100 <br /> fine sand,non-plastic 0.1 <br /> 20 20 <br /> No Recovery Bentonite: <br /> 20-23 ft. <br /> 0-- <br /> #2/12 Sand: <br /> CL Lean Clay;brown,95%fines,5%fine 23.5-25 100 7 23-45 ft. <br /> sand,low plasticity,cohesive moist 0.0 9 <br /> 25 12 25 <br /> SS=Split Spoon 0 <br /> ante6group <br /> Page 1 Of 2 Q First Encountered Groundwater Static Groundwater XINOGEN© <br />