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Case Narrative C Client: Dudek&Associates TestAmerica Job ID: 440-223576-1 Project/Site: Kearney KPF SDG: Stockton, CA Job ID: 440-223576-1 Laboratory: TestAmerica Irvine Narrative Job Narrative 440-223576-1 Comments No additional comments. Receipt The samples were received on 11/2/2018 9:45 AM;the samples arrived in good condition, properly preserved and,where required, on ice. The temperatures of the 2 coolers at receipt time were 3.8°C and 4.0°C. GC/MS VOA Method(s)624, 8260B:The laboratory control sample(LCS)for analytical batch 440-509443 recovered outside control limits for the following analyte: Dichlorobromomethane. This analytes was biased high in the LCS and was not detected in the associated samples; therefore,the data have been reported. No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. GC/MS Semi VOA Method(s)8270C SIM: Surrogate recovery for the following sample was outside below control limits: SMW-4(440-223576-6). Re-extraction and/or re-analysis was performed with concurring results for 1,4-Dioxane concentration.The original analysis has been reported. The secondary extraction was past holding time and was reported as Secondary. No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. Organic Prep Method(s)3520C: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate(MS/MSD)associated with preparation batch 440-510956. 3520C 8270 1,4 DXN No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. VOA Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. TestAmerica Irvine Page 4 of 34 11/15/2018