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1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />M c C a m p b e I l Analytical, I n c. Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />J <br />"When Quality Counts" I <br />http•J/www.mccampbeU.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 />Client: <br />AdvancedGeo, Inc. <br />WorkOrder: <br />2101278 <br />Date Prepared: <br />01/07/2021 <br />BatchID: <br />212727 <br />Date Analyzed: <br />01/07/2021 <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 />Waiters Property <br />Sample ID: <br />MB/LCS/LCSD-212727 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 5 of 10 <br />QC Summary Report for E300.1 <br />Analyte <br />MB MDL RL <br />SPK <br />MB SS <br />MB SS <br />Result <br />Val <br />%REC <br />Limits <br />Nitrate as N <br />ND 0.0170 0.100 <br />Nitrate as NO3 <br />ND 0.0740 0.440 <br />- <br />- <br />- <br />Surrogate Recovery <br />Malonate <br />0.103 <br />0.1 <br />103 <br />90-115 <br />Analyte <br />LCS LCSD SPK <br />LCS <br />LCSD <br />LCS/LCSD <br />RPD RPD <br />Result Result Val <br />%REC <br />%REC <br />Limits <br />Limit <br />Nitrate as N <br />0.988 0.984 1 <br />99 <br />98 <br />85-115 <br />0.395 20 <br />Nitrate as NW <br />4.38 4.36 4.4 <br />99 <br />99 <br />85-115 <br />0.395 20 <br />Surrogate Recovery <br />Malonate <br />0.100 0.0998 0.10 <br />101 <br />100 <br />90-115 <br />0.695 20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 5 of 10 <br />