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Case Narrative C <br /> Client: GHD Services Inc. TestAmerica Job ID: 720-78844-1 <br /> Project/Site: UPRR-Ret Tank-Stockton <br /> Job ID: 720-78844-1 <br /> Laboratory: TestAmerica Pleasanton <br /> Narrative <br /> Job Narrative <br /> 720-78844-1 <br /> Comments <br /> No additional comments. <br /> Receipt <br /> The samples were received on 4/10/2017 3:25 PM;the samples arrived in good condition, properly preserved and,where required, on ice. <br /> The temperatures of the 4 coolers at receipt time were 1.1°C, 2.9°C, 5.4°C and 5.6°C. <br /> Receipt Exceptions <br /> One of ten amber unpreserved 1 L received was not full. <br /> One of three poly 250ml unpreserved container(lab#01 O)did not have a sample label.This container will not be used for analyses. Both <br /> samples 3776-Tank and 3670-Tank(01#O)containers do not have a client label. <br /> Received 6-40ml HCI voa vials and no volatile anaylses are requested for this sample. <br /> GC/MS VOA <br /> No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. F <br /> GC/MS Semi VOA <br /> No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. <br /> GC Semi VOA <br /> Method 8082:The following samples required a tetrabutylammonium sulfite(TBA)clean-up to reduce matrix interferences caused by <br /> sulfur: 3776-TANK(720-78844-1), (LCS 720-221183/2-A), (LCSD 720-221183/3-A)and (MB 720-221183/1-A). E <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 serial dilution performed for the following sample associated with batch 720-221213 was outside control limits: <br /> (720-78844-R-1-C SD) <br /> No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. <br /> General Chemistry <br /> Method 9020B: Breakthrough exceeded 10%for the following sample:3776-TANK(720-78844-1). Re-analysis was performed with <br /> concurring results. The data have been reported. <br /> No additional analytical or quality issues were noted,other than those described above or 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 /> TestAmerica Pleasanton <br /> Page 4 of 53 4/19/2017 <br />