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F- ENVIRONMENTAL COST MANAGEMENT.INC <br /> ft <br /> Costa Me,,a, I <br /> 9 4 <br /> FT1 an age coin <br /> Via Electronic Mail <br /> August 14, 2015 RECEIVE® <br /> Marcus Pierce, PG AUG 2 4 2015 <br /> California Regional Water Quality Control Board <br /> Central Valley Region ENVIRONMENTAL HEALTH <br /> 11020 Sun Center Drive, #200 PERMIT/SERVICES <br /> Rancho Cordova, CA 95670 <br /> RE: Second Quarter 2015 Site Status Report <br /> Former Nestle USA, Inc. Facility <br /> 230 Industrial Avenue <br /> Ripon, CA 95366 <br /> Dear Mr. Pierce: <br /> On behalf of Nestle USA, Inc. (Nestle), Environmental Cost Management, Inc. (ECM) <br /> has prepared the Second Quarter 2015 Site Status Report for the former Nestle facility <br /> located at 230 Industrial Avenue (Site) in Ripon, California (Figure 1). This report <br /> presents the results of groundwater monitoring performed at the Site and vicinity from <br /> April through June 2015. Below is the summary of the field work completed during <br /> Second Quarter 2015 in compliance with Monitoring and Reporting Program R5-2014- <br /> 0815 (MRP R5-2014-0815). <br /> • On April 27, 2015: <br /> o ECM measured water levels at 132 wells including six Diamond Pet Food <br /> Processor of Ripon LLC (Diamond) wells. <br /> o Stantec, Inc. measured water levels at nine City of Ripon piezometers, 11 <br /> City of Ripon municipal wells, and three City of Ripon monitoring wells. <br /> • Between April 2 and June 23 2015, ECM collected volatile organic compound <br /> (VOC) samples from: <br /> o One hundred thirteen (113) Nestle monitoring wells (56 Upper Aquifer wells, <br /> 38 Intermediate Aquifer wells, and 19 Lower Aquifer wells) using Passive <br /> Diffusion Bags, <br /> o Three active Nestle extraction wells (EI-1 and EU-4), <br /> o Ten City of Ripon production wells (MW-3, MW-5, MW-7, MW-9, MW-10, <br /> MW-11, MW-13, MW-14, MW-16, and MW-18), <br /> 1 <br />