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1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br />McCamgbell Analytical, Inc. Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br />.tel "When Quality Counts" http://www.niccampbell.com / E-mail: niain@niccampbell.com <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 6 of 11 <br />Quality Control Report <br />Client: <br />Terracon <br />WorkOrder: <br />2204266 <br />Date Prepared: <br />04/06/2022 - 04/07/2022 <br />BatchID: <br />242894 <br />Date Analyzed: <br />04/06/2022 - 04/07/2022 <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 />NA227026; JPM <br />Sample ID: <br />MB/LCS/LCSD-242894 <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 0.048 0.10 <br />- <br />- <br />Nitrate as NO3 <br />ND 0.21 0.44 <br />- <br />- <br />Surrogate Recovery <br />Malonate <br />0.10 <br />0.1 <br />102 <br />90-115 <br />Analyte <br />LCS LCSD SPK LCS <br />LCSD <br />LCS/LCSD RPD <br />RPD <br />Result Result Val %REC <br />%REC <br />Limits <br />Limit <br />Nitrate as N <br />1.0 0.98 1 100 <br />98 <br />85-115 1.47 <br />20 <br />Nitrate as NO3 <br />4.4 4.4 4.4 101 <br />99 <br />85-115 1.47 <br />20 <br />Surrogate Recovery <br />Malonate <br />0.10 0.10 0.10 101 <br />100 <br />90-115 1.38 <br />20 <br />CA ELAP 1644 • NELAP 4033ORELAP <br />Page 6 of 11 <br />