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Work Description <br /> March 12, 2009 <br /> Subject: Installing 3 piezometers for groundwater depth readings <br /> Depth: to 15 feet below ground surface <br /> Site: Shin Kee Tract <br /> Location: 13750 North Guard Avenue, Thornton, CA <br /> Kleinfelder is planning on installing three piezometers near the northern <br /> boundary of Shin Kee Tract located south of Highway 12 near Thornton, <br /> California. The 15-foot-deep piezometers will be drilled using a Simco 2400 or <br /> CME-75 truck mounted drill rig with continuous, 6-inch diameter, solid-stem or <br /> hollow-stem auger. We will use 2-inch diameter PVC-pipes for casing. The pipes <br /> in the upper 5 feet are going to be solid pipes while the rest are perforated. <br /> Around the pipes in the.bottom 11 feet will be filled with sand and 2 feet of <br /> bentonite above the sand. The upper 2 feet, around the solid pipe, will be <br /> grouted. Upon the completion of our readings in approximately 12 months, the <br /> holes will be destructed and grouted with neat cement under the supervision of a <br /> county representative. <br /> Thank you <br /> Hamid "Saeed" Parsa, PE <br /> Staff Engineer <br /> Kleinfelder West, Inc. <br /> Attachment: Site Map. <br />