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Case Narrative <br /> Client: Stantec Consulting Corp. Job ID: 320-67359-1 <br /> Project/Site: 7-11 No 20632 (CA) <br /> Job ID: 320-67359-1 <br /> Laboratory: Eurofins TestAmerica, Sacramento <br /> Narrative <br /> Job Narrative <br /> 320-67359-1 <br /> Comments <br /> No additional comments. <br /> Receipt <br /> The samples were received on 12/1/2020 2:04 PM;the samples arrived in good condition,and where required, properly preserved and on <br /> ice.The temperature of the cooler at receipt was 3.0°C. <br /> GC/MS VOA <br /> Method 82606/CA_LUFTMS:The ending CCV for batch 437997(CCV 320-437997/22)was outside acceptance limits with a low bias.Two <br /> consecutive CCVs(CCV 320-437997/23, CCV 320-437997/24)were analyzed the next morning, outside the 12 hour tune window to <br /> demonstrate that the instrument was still in calibration. <br /> No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. <br /> GC Semi VOA <br /> Method 80156:The following samples were diluted due to the nature of the sample matrix: D-1-4(320-67359-1),TP-2-14.5 <br /> (320-67359-4),TP-3-15.5(320-67359-5), (320-67359-B-1-AMS)and (320-67359-B-1-B MSD). Elevated reporting limits(RLs)are <br /> provided. <br /> No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. <br /> Metals <br /> Method 6010B:The matrix spike/matrix spike duplicate(MS/MSD)recoveries for preparation batch 320-439292 and analytical batch <br /> 320-439665 were outside control limits. Sample matrix interference and/or non-homogeneity are suspected because 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 /> VOA Prep <br /> No analytical or quality issues were noted,other than those described in the Definitions/Glossary page. <br /> Lab Admin <br /> No analytical or quality issues were noted,other than those described in the Definitions/Glossary page. <br /> Eurofins TestAmerica, Sacramento <br /> Page 4 of 40 12/10/2020 <br />