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l 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e I l Analytic al, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> ,%at "When Quality Countsrr http://www.mccanTbell.com/E-mail:main@mccmVbell.com <br /> Quality Control Report <br /> Client: Petralogix WorkOrder: 2109E30 <br /> Date Prepared: 09/28/2021 BatchID: 230565 <br /> Date Analyzed: 09/28/2021 Extraction Method: E300.1 <br /> Instrument: IC4 Analytical Method: E300.1 <br /> Matrix: Water Unit: mg/L <br /> Project: NLS/SSS Stockton Sample ID: MB/LCS/LCSD-230565 <br /> QC Summary Report for E300.1 <br /> Analyte MB MDL RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> Nitrate as N ND 0.0460 0.100 <br /> Nitrate as NO3 ND 0.200 0.440 - - - <br /> Surrogate Recovery <br /> Malonate 0.0963 0.1 96 90-115 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Nitrate as N 0.962 1.01 1 96 101 85-115 4.76 20 <br /> Nitrate as NO3 4.26 4.47 4.4 97 102 85-115 4.76 20 <br /> Surrogate Recovery <br /> Malonate 0.0968 0.0963 0.10 97 96 90-115 0.427 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 6 of 11 <br />