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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> }_ Mccampbell Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: AdvancedGeo, Inc. WorkOrder: 2004769 <br /> Date Prepared: 04/17/2020 BatchID: 197259 <br /> Date Analyzed: 04/17/2020 Extraction Method: E300.1 <br /> Instrument: IC4 Analytical Method: E300.1 <br /> Matrix: Water Unit: mg/L <br /> Project: Duarte Property Sample ID: MB/LCS/LCSD-197259 <br /> 2004769-001 AMS/MSD <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 0.0530 0.100 - <br /> Nitrate as NO3 ND 0.230 0.440 - - - <br /> Surrogate Recovery <br /> Malonate 0.103 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 /> Nitrate as N 0.965 0.974 1 96 97 85-115 0.909 20 <br /> Nitrate as NO3 4.27 4.31 4.4 97 98 85-115 0.909 20 <br /> Surrogate Recovery <br /> Malonate 0.0988 0.0988 0.10 99 99 90-115 0.0020 20 <br /> Analyte MS MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> DF Result Result Val Val %REC %REC Limits Limit <br /> Nitrate as N 1 8.27 8.27 1 7.46 81,F1 81,F1 85-115 0.0477 20 <br /> Nitrate as NO3 1 36.6 36.6 4.4 33.0 81,F1 82,F1 85-115 0.0478 20 <br /> Surrogate Recovery <br /> Malonate 1 0.0964 0.0968 0.10 96 97 85-115 0.468 20 <br /> CA ELAP 1644•NELAP 40330RELAP <br /> Page 5 of 9 <br />