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Case Narrative <br />Client: GHD Services Inc. TestAmerica Job ID: 720-91907-1 <br />Project/Site: UPRR-Lathrop (HazMat) SDG: 1000 E. Roth Rd, French Camp, CA 95231 <br /> <br />Job ID: 720-91907-1 <br /> <br />Laboratory: TestAmerica Pleasanton <br /> <br />Narrative <br /> <br />Job Narrative <br />720-91907-1 <br />Comments <br />No additional comments. <br />Receipt <br />The sample was received on 3/13/2019 9:25 AM; the sample arrived in good condition, properly preserved and, where required, on ice. <br />The temperature of the cooler at receipt was 1.0° C. <br />Receipt Exceptions <br />wrong client PM assigned. Set up a new project. <br />Metals <br />Method(s) 6010B: The matrix spike! matrix spike duplicate (MS/MSD) recoveries and precision for preparation batch 720-261984 and <br />analytical batch 720-262158 were outside control limits. Sample matrix interference and/or non-homogeneity are suspected because the <br />associated laboratory control sample (LCS) recoveries was within acceptance limits. <br />Method(s) 6010B: The serial dilution performed for the following sample associated with batch 720-262158 was outside control limits for <br />Barium-30%, Cobalt-20%, Chromium-26%, Nickel-19%, Lead-18% & Vanadium-26%: (720-91913-A-1-I SD) <br />Method(s) 60108: The following sample was diluted due to the abundance of non-target analytes: WR#21232 (720-91907-1). Elevated <br />reporting limits (RLs) are provided. <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 />TestAmerica Pleasanton <br />Page 4 of 14 3/19/2019