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Project Name Well Number <br /> Former Arco 559 Monitoring Well Construction Log MW-5 <br /> Address Drilling Contractor Ground Surface Elevation: Top of Casing Elevation: <br /> 2085 East Main Street Cascade Drilling 20.74 20.14 <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 /> S.Harrington 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 1/8/2020 <br /> LITHOLOGY SAMPLING DATA <br /> o .N Mn N <br /> C <br /> 0 .- �- @ Z' 0 (fl 7. J <br /> 76. Graphic Visual N a E o 3 a - Well Well a <br /> a <br /> w Mcg co Description 2 0 _ �' ` m m � Diagram Details o <br /> 0 Air Knife from 0 to 6.5 ft; Concrete: 0 <br /> 20-_ No lithology logged 0-0.5 ft. <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 <br /> No Recovery <br /> ]M ML Silt with Sand;brown,75%fines,25% 8.5-10 100 7 <br /> fine sand,non-plastic,cohesive 13 <br /> 10 moist 0.0 16 10 <br /> No Recovery <br /> 10 <br /> ML Silt with Sand;brown,85%fines,15% 13.5-15 1007 <br /> fine sand,non-plastic,cohesive 11 <br /> 15 moist 0.0 S 15 <br /> No Recovery <br /> 5 <br /> SM Silty Sand;brown,75%fine sand,25% 18.5-20 100 6 <br /> non-plastic fines,cohesive 11 <br /> 20 moist 0.0 10 20 <br /> No Recovery Bentonite: <br /> 0-- 20-23 ft. <br /> Silt;brown,90%fines,10%fine sand, #2/12 Sand: <br /> �VML <br /> non-plastic 23.5-25 100 10 23-45 ft. <br /> Lean Clay;grey-brown,95%fines,5% 16 <br /> 25fine sand,medium plasticity moist 0.0 22 25 <br /> SS=Split Spoon 0 <br /> ante6group <br /> Page 1 Of 2 Q First Encountered Groundwater Static Groundwater XINOGEN© <br />