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Work Description <br /> August 3, 2007 <br /> Subject: Installing 3 piezometers for groundwater depth readings <br /> Depth: 15 feet <br /> Site: Shin Kee Tract <br /> Location: 13750 North Guard Avenue, Thornton, CA <br /> Kleinfelder is planning on installing three piezometers near the western boundary <br /> of Shin Kee Tract located south of Highway 12 near Thornton, California. The 15- <br /> foot-deep piezometers will be drilled using a Simco 2400 truck mounted drill rig <br /> with continuous, 4'/2-inch diameter, solid-stem auger. We will use 2-inch diameter <br /> PVC-pipes for casing. The pipes in the upper 5 feet are going to be solid pipes <br /> while the rest are perforated. Around the pipes in the bottom 10 feet will be filled <br /> with sand and the upper 5 feet, around the solid pipe, will be grouted. Upon the <br /> completion of our readings in approximately 12 months, the holes will be grouted <br /> with neat cement. <br /> Thank you <br /> Saeed Parsa <br /> Staff Engineer <br /> Kleinfelder West, Inc. <br /> Attachment: Site Map. <br />