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Case Narrative C <br /> Client: ECM Consultants TestAmerica Job ID: 720-88383-1 <br /> Project/Site: Nestle <br /> Job ID: 720-88383-1 <br /> Laboratory: TestAmerica Pleasanton <br /> Narrative <br /> Receipt <br /> The samples were received on 9/4/2018 1:50 PM;the samples arrived in good condition, properly preserved and,where required,on ice. <br /> The temperature of the cooler at receipt was 9.5°C. <br /> GC/MS VOA <br /> Method(s)82606:The continuing calibration verification (CCV)associated with batch 720-250971 recovered above the upper control limit <br /> for Chlorodibromomethane. The samples associated with this CCV were non-detects for the affected analytes;therefore,the data have <br /> been reported. The following sample is impacted: RPS-1 (720-88383-9). <br /> Method(s)82606:The laboratory control sample(LCS)and/or laboratory control sample duplicate(LCSD)for analytical batch C <br /> 720-250971 recovered outside control limits for the following analytes: Dichlorodifluoromethane. These analytes were biased high in the <br /> LCS and were not detected in the associated samples;therefore,the data have been reported. <br /> Method(s)82606:The matrix spike/matrix spike duplicate(MS/MSD)recoveries for analytical batch 720-250971 were outside control <br /> limits. Sample matrix interference and/or non-homogeneity are suspected because the associated laboratory control sample(LCS) <br /> recovery was within acceptance limits. <br /> Method(s)524.2:The RPD of the laboratory control sample(LCS)and laboratory control sample duplicate(LCSD)for batch analytical <br /> batch 440-497627 recovered outside control limits for the following analytes: 1,1,2,2,-Tetrachloroethane. Laboratory control sample/ <br /> laboratory control sample duplicate(LCS/LCSD) percent recovery is in control for affected analytes. <br /> No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. <br /> TestAmerica Pleasanton <br /> Page 4 of 31 9/17/2018 <br />