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OEC <br />• <br />• <br />Oilfield Environmental & Compliance, Inc. <br />CalRecycle Project: Lathrop <br />432 Geranium Circle Project Number: PNA-SWIS 39-22 PNA Lathrop Reported: <br />Galt CA, 95632 Project Manager: Sabra Ambrose 02/23/2018 15:39 <br />Total Metals by EPA 6000/7000 Series Methods - Quality Control <br />Analyte Result RL Units Spike Source %REC %REC RPD RPD Notes <br />Level Result Limits Limit <br />Batch B8B0089 - EPA 7471A Preparation: EPA 7471A Prep 02/05/18 09:04 <br />Blank (B8B0089-BLKl) Analyzed: 02/05/18 14:31 <br />Mercury ND 0.10 mg/kg <br />LCS (B8B0089-BSI) Analyzed: 02/05/18 14:27 <br />Mercury 0.831 0.10 mg/kg 0.833 99.7 85-115 <br />LCS Dup (B8B0089-BSDl) Analyzed: 02/05/18 14:29 <br />Mercury 0.797 0.10 mg/kg 0.833 95.7 85-115 4.16 20 <br />Duplicate (B8B0089-DLiPI) <br />Source: 1800597-01 <br />Analyzed: 02/05/18 14:35 <br />Mercury <br />ND <br />0.098 mg/kg ND <br />Matrix Spike (B8B0089-MSl) <br />Source: 1800597-01 <br />Analyzed: 02/05/18 14:37 <br />Mercury <br />0.820 <br />0.098 mg/kg 0.814 ND <br />Matrix Spike Dup (B8B0089-MSD1) <br />Source: 1800597-01 <br />Analyzed: 02/05/18 14:39 <br />Mercury <br />0.835 <br />0.099 mg/kg 0.828 ND <br />Post Spike (B8B0089-PSI) <br />Source: 1800597-01 <br />Analyzed: 02/05/18 14:41 <br />Mercury <br />4.90 <br />ug/l, 5.00 0.0507 <br />20 <br />101 75-125 <br />101 75-125 1.86 20 <br />97.0 85-115 <br />The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. <br />Client Connect: clientoec.comlreports TEL: (805) 922-4772 <br />307 Roemer Way, Suite 300, Santa Maria, CA 934 www.oecusa.com FAX: (805) 925-3376 <br />Page 66 of 87 <br />