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1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />M c C a m p b e l I 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 />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 5 of 10 <br />QC Summary Report for E300.1 <br />Quality Control Report <br />MB MDL RL SPK MB SS MB SS <br />Result Val %REC Limits <br />Client: <br />AdvancedGeo, Inc. <br />WorkOrder: <br />22031`91 <br />Date Prepared: <br />03/25/2022 <br />BatchID: <br />242054 <br />Date Analyzed: <br />03/25/2022 <br />Extraction Method: <br />E300.1 <br />Instrument: <br />IC4 <br />Analytical Method: <br />E300.1 <br />Matrix: <br />Water <br />Unit: <br />mg/L <br />Project: <br />Martin Property <br />Sample ID: <br />MB/LCS/LCSD-242054 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 5 of 10 <br />QC Summary Report for E300.1 <br />Analyte <br />MB MDL RL SPK MB SS MB SS <br />Result Val %REC Limits <br />Nitrate as N <br />ND 0.046 0.10 <br />Nitrate as NO3 <br />ND 0.20 0.44 - - - <br />Surrogate Recovery <br />Malonate <br />0.11 0.1 106 90-115 <br />Analyte <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 5 of 10 <br />Analyte <br />LCS <br />LCSD <br />SPK <br />LCS <br />LCSD <br />LCS/LCSD <br />RPD <br />RPD <br />Result <br />Result <br />Val <br />%REC <br />%REC <br />Limits <br />Limit <br />Nitrate as N <br />0.98 <br />0.99 <br />1 <br />98 <br />99 <br />85-115 <br />1.02 <br />20 <br />Nitrate as NO3 <br />4.3 <br />4.4 <br />4.4 <br />99 <br />100 <br />85-115 <br />1.02 <br />20 <br />Surrogate Recovery <br />Malonate <br />0.099 <br />0.10 <br />0.10 <br />99 <br />101 <br />90-115 <br />1.26 <br />20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 5 of 10 <br />