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Client: ARCADIS U.S. Inc <br />Project/Site: UPRR-Stockton <br />Job ID: 720-69886-1 <br />Laboratory: TestAmerica PI <br />Narrative <br />nton <br />Case Narrative <br />Job Narrative <br />720-69886-1 <br />TestAmerica Job ID: 720-69886-1 <br />Comments <br />No additional comments. <br />Receipt <br />The sample was received on 1/2 /2016 9:25 AM; the sample arrived in good condition, properly preserved and, where required, on ice. <br />The temperature of the cooler at ceipt was 3.2° C. <br />GC Semi VOA <br />Method 80158: The following sa pies required a dilution due to the nature of the sample matrix: C-ONESPOT- (720-69886-1), <br />(720 -69886 -C -1-D MS) and (720- 9886 -C -1-E MSD). Because of this dilution, the surrogate spike concentration in the sample was <br />reduced to a level where the reco ery calculation does not provide useful information. <br />Method 8082: The following sam les required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by <br />sulfur: (LCS 720-196076/2-A) an (MB 720-196076/1-A). <br />Method 8082: The following sam es required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by <br />sulfur: C-ONESPOT- (720-69886- ),(720-69886-C-1 -A MS) and (720 -69886 -C -1-B MSD). <br />Method 8082: Surrogate recovery or the following sample was outside the upper control limit: C-ONESPOT- (720-69886-1). This sample <br />did not contain any target analyte ; therefore, re -extraction and/or re -analysis was not performed. <br />No additional analytical or quality i0sues were noted, other than those described above or in the Definitions/Glossary page <br />Metals <br />No analytical or quality issues we noted, other than those described in the Definitions/Glossary page. <br />General Chemistry <br />Method Moisture: Sample dissolve during drying in the oven, turns to oil substance. <br />(720-69886-A-1) <br />No additional analytical or quality i sues were noted, other than those described above or in the Definitions/Glossary page. <br />Organic Prep <br />Method 35506: A deviation from <br />th Standard Operating Procedure (SOP) occurred. Details are as follows: sample weight less than 30 <br />grams due to sample matrix; C -ON SPOT- (720-69886-1). <br />No additional analytical or quality i sues were noted, other than those described above or in the Definitions/Glossary page. <br />Page 4 of 20 <br />TestAmerica Pleasanton <br />1/2512016 <br />11 <br />