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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> McCampbell Analytical, Inc. Toll Free Telephone:(877)252-9262/Fav(925)252-9269 <br /> "When Quality Counts" http://www.mccampbeH.com/E-mail:main@mccmnpbell.com <br /> Quality Control Report <br /> Client: Terracon WorkOrder: 2004657 <br /> Date Prepared: 04/15/2020 BatchlD: 197133 <br /> Date Analyzed: 04/15/2020 Extraction Method: E300.1 <br /> Instrument: IC4 Analytical Method: E300.1 <br /> Matrix: Water Unit: mg/L <br /> Project: NA207032; Pickens Property Sample ID: MB/LCS/LCSD-197133 <br /> 2004657-001 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 0.102 0.1 102 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 0.961 0.960 1 96 96 85-115 0.0844 20 <br /> Nitrate as NO3 4.25 4.25 4.4 97 97 85-115 0.0842 20 <br /> Surrogate Recovery <br /> Malonate 0.0975 0.0974 0.10 98 97 90-115 0.131 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 4 14.3 14.2 1 13.51 76,F1 69,F1 85-115 0.503 20 <br /> Nitrate as NO3 4 63.2 62.9 4.4 59.81 77,F1 69,F1 85-115 0.503 20 <br /> Surrogate Recovery <br /> Malonate 4 0.0819 0.0838 0.10 82,F3 84,F3 85-115 2.33 20 <br /> CA ELAP 1644•NELAP 40330RELAP <br /> Page 6 of 11 <br />