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eurofins <br />Lancaster Laboratorie,, <br />Environmental Analysis Report <br />2425 New Holland Pike. Lancaster, PA 17601 • 717-656-2300 • Fax: 717-656-2681 • www.LancasterLabs.com <br />Quality Control Summary <br />Client Name: Chevron Group Number: 1857072 <br />Reported: 10/13/2017 14:31 <br />Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these <br />situations, to demonstrate precision and accuracy at a batch level, a LCS/LCSD was performed, unless otherwise specified <br />in the method. <br />All Inorganic Initial Calibration and Continuing Calibration Blanks met acceptable method criteria unless otherwise noted <br />on the Analysis Report. <br />Method Blank <br />Analysis Name Result Program EL <br />ugh 1 ugh]. <br />Batch number: F172762AA Sample number(s) : 9238443-9238449 <br />t-Amyl methyl ether N.D. 2 <br />Benzene N.D. 0.5 <br />1,2-Dichloroethane N.D. 2 <br />Ethylbenzene N.D. 0.5 <br />Methyl Tertiary Butyl Ether N.D. 2 <br />Toluene N.D. 0.5 <br />Xylene (Total) N.D. 0.5 <br />Batch number: Z172763AA Sample number(s): 9238440,9238450,9238458,9238462-9238466 <br />t-Amyl methyl ether N.D. 2 <br />Benzene N.D. 0.5 <br />t-Butyl alcohol N.D. 100 <br />1,2-Dibromoethane N.D. 2 <br />1,2-Dichloroethane N.D. 2 <br />Ethylbenzene N.D. 0.5 <br />Methyl Tertiary Butyl Ether N.D. 2 <br />Toluene N.D. 0.5 <br />Xylene (Total) N.D. 0.5 <br />Batch number: Z172764AA Sample number(s): 9238441-9238442,9238451-9238457,9238459-9238461 <br />t-Amyl methyl ether N.D. 2 <br />Benzene N.D. 0.5 <br />1,2-Dichloroethane N.D. 2 <br />Ethylbenzene N.D. 0.5 <br />Methyl Tertiary Butyl Ether N.D. 2 <br />Toluene N.D. 0.5 <br />Xylene (Total) N.D. 0.5 <br />Batch number: Z172782AA Sample number(s): 9238439 <br />Benzene N.D. 0.5 <br />Ethylbenzene N.D. 0.5 <br />Methyl Tertiary Butyl Ether N.D. 2 <br />Toluene N.D. 0.5 <br />Xylene (Total) N.D. 0.5 <br />Batch number: 17276A20A Sample number(s): 9238439,9238443-9238454,9238456,9238458-9238463 <br />TPH-GRO N. CA water C6-C12 N.D. 50 <br />Batch number: 17276E20A Sample number(s): 9238464-9238466 <br />TPH-GRO N. CA water C6-C12 N.D. 50 <br />Batch number: 17277A20A Sample number(s): 9238440-9238442,9238455,9238457 <br />*- Outside of specification <br />(I) The result for one or both determinations was less than five times the LOQ. <br />(2) The unspiked result was more than four times the spike added. <br />P#####tt is indicative of a Background or Unspiked sample that is batch matrix QC and was not performed using a sample from this submission group. <br />Page 31 of 42