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McCampbell Analytical, Inc. <br />When Quality Counts" <br />1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />http://www.mccampbell.com / E-mail: main@mccampbell.com <br /> <br />Quality Control Report <br />:Bent: Petralogix <br />Jate Prepared: 03/04/2021 <br />Date Analyzed: 03/04/2021 <br />nstrument: 1C4 <br />Matrix: Water <br />"roject: NLS/SSS <br />WorkOrder: 2103273 <br />BatchID: 216699 <br />Extraction Method: E300.1 <br />Analytical Method: E300.1 <br />Unit: mg/L <br />Sample ID: MB/LCS/LCSD-216699 <br />QC Summary Report for E300.1 <br />Analyte MB MDL RL SPK MB SS MB SS <br />Result Val %REC Limits <br />,Jitrate as N ND 0.0170 0.100 <br />Nitrate as NO3— ND <br /> <br />0.0740 0.440 <br />>urrogate Recovery <br />Malonate 0.103 <br /> 0.1 103 90-115 <br />Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br />Result Result Val %REC %REC Limits Limit <br />4itrate as N 0.973 0.981 1 97 98 85-115 0.841 20 <br />Nitrate as NO3— 4.31 4.34 4.4 98 99 85-115 0.841 20 <br />>urrogate Recovery <br />Jtalonate 0.0989 0.0992 0.10 99 99 90-115 0.386 20 <br />CA ELAP 1644 • NELAP 40330RELAP <br />1 <br /> <br />Page 5 of 10