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1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />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: main@mccampbell.com <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 6 of 14 <br />Quality Control Report <br />Client: <br />AdvancedGeo, Inc. <br />WorkOrder: <br />2209857 <br />Date Prepared: <br />09/15/2022 - 09/16/2022 <br />BatchID: <br />254062 <br />Date Analyzed: <br />09/15/2022 - 09/16/2022 <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 />Azevedo Property <br />Sample ID: <br />MB/LCS/LCSD-254062 <br />2209857-001 BMS/MSD <br />QC Summary Report for E300.1 <br />Analyte <br />MB <br />MDL RL <br />SPK <br />MB SS <br />MB SS <br />Result <br />Val <br />%REC <br />Limits <br />Nitrate as N <br />ND <br />0.048 0.10 <br />Nitrate as NO3- <br />ND <br />0.21 0.44 <br />- <br />- <br />- <br />Surrogate Recovery <br />Malonate <br />0.10 <br />0.1 <br />103 <br />90-115 <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 />0.98 <br />1 <br />98 <br />98 <br />85-115 <br />0.567 <br />20 <br />Nitrate as NO3- <br />4.3 <br />4.4 <br />4.4 <br />98 <br />99 <br />85-115 <br />0.567 <br />20 <br />Surrogate Recovery <br />Malonate <br />0.10 <br />0.10 <br />0.10 <br />100 <br />101 <br />90-115 <br />0.694 <br />20 <br />Analyte <br />MS <br />MS <br />MSD <br />SPK SPKRef <br />MS <br />MSD <br />MS/MSD <br />RPD <br />RPD <br />DF <br />Result <br />Result <br />Val Val <br />%REC %REC <br />Limits <br />Limit <br />Nitrate as N <br />10 <br />23 <br />22 <br />10 12.65 <br />105 <br />96 <br />85-115 <br />3.73 <br />20 <br />Nitrate as NOT <br />10 <br />100 <br />99 <br />44 56.01 <br />105 <br />97 <br />85-115 <br />3.73 <br />20 <br />Surrogate Recovery <br />Malonate <br />10 <br />1.0 <br />0.95 <br />1 <br />101 <br />95 <br />90-115 <br />6.14 <br />20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 6 of 14 <br />