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General Chemistry Narrative <br />Lawrence Livermore National Labs (LLNL) <br />SDG 197827 <br />Method/Analysis Information <br />Product: Oil & Grease <br />Analytical Batch: 703929 Method: SW846 9070 <br />Sample Anal <br />The following samples were analyzed using the analytical protocol as established in SW846 9070: <br />Sample ID Client ID <br />197827001 83461 <br />1201464389 Method Blank (MB) <br />1201464390 197868002(22158 WTP 143 Backwash Supply/Effluent) Matrix Spike (MS) <br />1201464391 Laboratory Control Sample (LCS) <br />The sample in this SDG was analyzed on an "as received" basis. <br />SOP Reference <br />Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories <br />LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in <br />accordance with GL -GC -E-017 REV# 8. <br />PreparationJAnalytical Method Verification <br />The SOP stated above has been prepared based on technical research and testing conducted by GEL <br />Laboratories, LLC. and with guidance from the regulatory documents listed in this "Method/Analysis <br />Information" section. <br />Calibration Information <br />The Oil & Grease analysis was performed on a Sartorius Balance. <br />Initial Calibration <br />All initial calibration requirements have been met for this SDG. <br />Quality Control (00 Information <br />Method Blank (MB) Statement <br />The MB analyzed with this SDG met the acceptance criteria. <br />Laboratory Control Sample (LCS) Recovery <br />The LCS spike recovery met the acceptance limits. <br />Laboratory Control Sample Duplicate (LCSD) Recovery <br />LCSD N/A <br />Page 28 of 36 <br />