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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> �r—& M c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> When Quality Counts" http://www.mccampbell.com/E-mail:niain@jmcwMbcll.com <br /> ail: ain@mccwMbcll.com <br /> Quality Control Report <br /> Client: AdvancedGeo,Inc. WorkOrder: 2009172 <br /> Date Prepared: 09/03/2020 BatchlD: 205014 <br /> Date Analyzed: 09/03/2020 Extraction Method: E300.1 <br /> Instrument: IC4 Analytical Method: E300.1 <br /> Matrix: Water Unit: mg/L <br /> Project: Wentworth Property Sample IM MB/LCS/LCSD-205014 <br /> 2009172-001AMS/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 0.0170 0.100 - - - <br /> Nitrate as NO3 ND 0.0740 0.440 - - - <br /> Surrogate Recovery <br /> Malonate 0.0990 0.1 99 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 0.970 0.976 1 97 98 85-115 0.633 20 <br /> Nitrate as NO3 4.29 4.32 4.4 98 98 85-115 0.633 20 <br /> Surrogate Recovery <br /> Malonate 0.0978 0.0992 0.10 98 99 90-115 1.47 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 8.63 8.65 1 7.84 78,F1 81,F1 85-115 0.272 20 <br /> Nitrate as NO3 1 38.2 38.3 4.4 34.7 79,F1 81,F1 85-115 0.272 20 <br /> Surrogate Recovery <br /> Malonate 1 0.0952 0.0979 0.10 95 98 90-115 2.70 20 <br /> CA ELAP 1644•NELAP 40330RELAP <br /> Page 5 of 9 <br />