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9INVENTAL COST <br /> Managing Casf and Liabilily <br /> 3525 Wand Avenue.Suits 200 <br /> Cosits Mesa,California 92626 <br /> May 6, 2011 <br /> Mr. James Brownell, PG <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 11020 Sun Center Drive, #200 <br /> Rancho Cordova, CA 95670 <br /> Subject: First Quarter 2011 Site Status Report <br /> Former Nestle USA, Inc. Facility <br /> 230 Industrial Avenue <br /> Ripon, CA 95366 <br /> Dear Mr. Brownell: <br /> On behalf of Nestle USA, Inc. (Nestle), Environmental Cost Management, Inc. (ECM) has <br /> prepared this First Quarter 2011 Site Status Report for the former Nestle facility located at 230 <br /> Industrial Avenue (Site) in Ripon, California (Figure 1). This report presents the results of <br /> groundwater monitoring performed from January through March 2011. <br /> The field work performed throughout the Study Area (Figure 2) during the First Quarter 2011 for <br /> the monitoring program is summarized below. <br /> • On January 10, 2011, ECM measured water levels in 123 wells. <br /> • On January 10, 2011, ECO:LOGIC Engineering measured water levels for nine City of <br /> Ripon piezometers and recorded water levels for 14 City of Ripon municipal wells and <br /> monitoring wells. <br /> • On January 10, 2011, Lawrence & Associates measured water levels for 11 Diamond <br /> Pet Food' wells. <br /> • Between January 4 and March 22, 2011, ECM collected samples from: <br /> o Sixty-two Nestle wells (55 wells using Passive Diffusion Bags, three grab <br /> samples from extraction wells, and four wells with dedicated pumps), <br /> o Eight City of Ripon production wells (grab sample from sampling port), <br /> o Three Diamond Pet Food wells, and <br /> ' Diamond Pet Food Processors of Ripon, LLC (Diamond Pet Food) purchased the former Neenah <br /> Paper Company property/facility in October 2010. <br /> Page 1 of 2 <br />