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BACKGROUND INFORMATION <br /> The objective of this phase of the project is to install three (3) monitoring wells, one (1) of <br /> which will be installed in a deep exploratory boring. The work will be performed at a facility <br /> in Ripon, California, approximately seven miles north of Modesto, California. The site is <br /> located in the Central Valley and the stratigraphy consists of unconsolidated clay, silt, sand, <br /> and minor gravel. The ground water in the are is unconfined, with the water table located at <br /> approximately 40 feet. <br /> The wells will be located to the south of the Nestle facility near the City of Ripon sewage <br /> treatment area. All drill sites are easily accessible from city, county, or facility roads. <br /> As part of this drilling effort, one (1) exploratory boring will be drilled with mud rotary to a <br /> depth of 240 feet. The boring will be electric logged (E-logged) following drilling. The boring <br /> will then be completed as a well to a depth of approximately 240 feet. The well will be <br /> completed with five inch PVC screen and casing. The screen will be 20 feet in length. The <br /> work will also include the installation of two additional monitoring wells, one monitoring well <br /> to an approximate depth of 120 feet, and one monitoring well to an approximate depth of 160 <br /> feet. <br /> Trichloroethene (TCE) and associated degradation products, including vinyl chloride, have <br /> been detected in the ground water in and around the facility. The area in which the three <br /> wells will be drilled is expected to have low concentrations of TCE and associated chemicals <br /> (below the Federal drinking water standard). <br /> Additional information is provided in the technical specification. Also, the cost proposal for <br /> conducting the work is provided as an attachment. <br /> 20598/091592.Rpt <br /> -1- <br />