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Case Narrative <br /> Job ID : 440-246101 - 1 <br /> Client : Antea USA Inc . <br /> Project/Site : ARCO 7049 , Lodi <br /> Job ID :_440 =246101 - 1 -- -- <br /> Laboratory : Eurofins TestAmerica , Irvine ' <br /> Narrative <br /> Job Narrative <br /> 440 -246101 -1 <br /> Comments <br /> No additional comments . <br /> Receipt <br /> The samples were received on 7/ 18/2019 7 :30 AM ; the samples arrived in good condition , properly preserved and , where required , on ice . <br /> The temperature of the cooler at receipt was 3 . 4° C . <br /> GC/MS VOA <br /> No analytical or quality issues were noted , other than those described in the Definitions/Glossary page . <br /> GC/MS Semi VOA <br /> ion batch 440-558277 and analytical batch 440-558411 contained Naphthalene <br /> Method (s) 8270C SIM : The method blank for preparat <br /> above the method detection limit. This target analyte concentration was less than the reporting limit ( RL) ; therefore , re-extraction and/or <br /> re-analysis of samples was not performed . <br /> No additional analytical or quality issues were noted , other than those described above or in the Definitions/Glossary page . <br /> GC VOA <br /> No analytical or quality issues were noted , other than those described in the Definitions/Glossary page . <br /> GC Semi VOA <br /> Method (s) 80158 : The matrix spike/ matrix spike duplicate ( MSD) recoveries for preparation batch 440-558537 and analytical batch <br /> 440-558414 were outside control limits . Non-homogeneity is suspected . The associated laboratory control sample (LCS ) recovery was <br /> within acceptance limits . <br /> No additional analytical or quality issues were noted , other than those described above or in the Definitions/Glossary page . <br /> Metals <br /> Method (s) 60108 : The matrix spike / matrix spike duplicate (MS/MSD ) recoveries of Lead for preparation batch 440-559291 and analytical <br /> batch 440-559561 were outside control limits . Sample matrix interference and/or non-homogeneity are suspected . The associated <br /> laboratory control sample ( LCS ) recovery was within acceptance limits . <br /> No additional analytical or quality issues were noted , other than those described above or in the Definitions/Glossary page. <br /> General Chemistry <br /> No analytical or quality issues were noted , other than those described in the Definitions/Glossary page . <br /> Organic Prep <br /> No analytical or quality issues were noted , other than those described in the Definitions/Glossary page . <br /> VOA Prep <br /> No analytical or quality issues were noted , other than those described in the Definitions/Glossary page . <br /> Eurofins T 812/2019 Rev 1 ) <br /> Page 4 of 38 <br />