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Case Narrative <br /> Client: PSC Industrial Services TestAmerica Job ID: 720-75507-1 <br /> Project/Site: McDondald Island Production Tank, McDond <br /> Job ID: 720-75507-1 <br /> Laboratory:TestAmerica Pleasanton <br /> Narrative <br /> Job Narrative <br /> 720-75507-1 <br /> Comments <br /> No additional comments. <br /> Receipt <br /> The samples were received on 10/28/2016 5:25 PM;the samples arrived in good condition, properly preserved and,where required, on <br /> ice. The temperatures of the 4 coolers at receipt time were 5.0°C,5.5°C, 5.6°C and 7.5°C. <br /> GC/MS VOA <br /> Method 82608:The following sample was diluted due to the abundance of non-target analytes:WHISKEY SLOUGH-TANK#C-6 <br /> (720-75507-1). Elevated reporting limits(RLs)are provided. <br /> Method 8260B: Due to the high concentration of Toluene and Benzene,the matrix spike/matrix spike duplicate(MS/MSD)for analytical <br /> batch 720-212471 could not be evaluated for accuracy and precision. The associated laboratory control sample(LCS)met acceptance <br /> criteria. <br /> No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. <br /> GC/MS Semi VOA <br /> Method 8270C SIM:Surrogate recovery for the following sample was outside control limits:WHISKEY SLOUGH-TANK#C-6(720-75507-1). <br /> Evidence of matrix interference is present;therefore, re-extraction and/or re-analysis 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 801513:The following sample required a dilution due to the nature of the sample matrix:WHISKEY SLOUGH-TANK#C-6 <br /> (720-75507-1). Because of this dilution,the surrogate spike concentration in the sample was reduced to a level where the recovery <br /> calculation does not provide useful information. <br /> No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. <br /> Metals <br /> No analytical or quality issues were noted, otherthan those described in the Definitions/Glossary page. <br /> General Chemistry <br /> Method 300.0:The following sample was diluted due to the abundance of non-target analytes:fluoride. 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 /> Organic Prep <br /> Method 3510C: EPA 8270C SIM:A matrix spike/matrix spike duplicate was not included in batch 212484 because insufficient sample <br /> volume was available. <br /> Method 3510C: EPA 8015B:A matrix spike/matrix spike duplicate was not included in batch 212554 because insufficient sample volume <br /> was available. <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 28 11/7/2016 <br />