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UES <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 />1800597-01 (Solid) <br />NWCSW3 (6') <br />Analyte Result RL Units Dilution Batch Prepared Analyzed Method Notes <br />EPA 1613B m <br />Surrogate: C13-OCDD <br />73% <br />(17-157) 5397644 02107/18 02/15118 EPA 1613E m <br />Surrogate: C13-123478 HexaCDF <br />99% <br />(26-152) <br />Surrogate: C13-1234789 HeptaCDF <br />90% <br />(26-138) <br />Surrogate: 03-123678 HexaCDF <br />102% <br />(26-123) <br />Surrogate: 03-123678 HexaCDD <br />95% <br />(28-130) <br />Surrogate: C13-12378 PentaCDF <br />78% <br />(24-185) <br />Surrogate: C13-12378 PentaCDD <br />79% <br />(25-181) <br />Surrogate: C13-234678 HexaCDF <br />86% <br />(28-136) <br />Surrogate: C13-123789 HexaCDF <br />78% <br />(29-147) <br />EPA M8290A / M1613 <br />ND <br />0.48 " <br />2,3,7,8 -Tetra CDF 13.8 0.99 pg/g 1 5406423 02/06/18 02/16/18 EPA M8290A / <br />M 1613 <br />Surrogate: C13-2378 Tetra("DF 98% (40-135) " <br />Oilfield Environmental & Compliance, Inc. <br />Total Metals by EPA 6000/7000 Series Methods <br />Antimony <br />ND <br />2.4 mg/kg 1 B8A0735 01/30/18 02/05/18 EPA6010B <br />Arsenic <br />ND <br />1.9 " <br />Barium <br />36 <br />0.95 " <br />Beryllium <br />ND <br />0.48 <br />Cadmium <br />0.33 <br />0.24 " <br />Chromium <br />7.1 <br />048 " <br />Cobalt <br />3.2 <br />0.48 " <br />Copper <br />5.5 <br />0.95 <br />Lead <br />1.2 <br />0.48 <br />Molybdenum <br />ND <br />0.48 " <br />Nickel <br />4.9 <br />0.24 " <br />Selenium <br />ND <br />1.9 " <br />Silver <br />ND <br />0.48 " <br />Thallium <br />ND <br />0.95 " <br />Vanadium <br />18 <br />0.95 <br />Zinc <br />21 <br />0.95 <br />Mercury <br />ND <br />0.098 B8B0089 02/05/18 02/05/18 EPA 7471A <br />B-02 <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: client.oec.comlreports TEL: (805) 922-4772 <br />307 Roemer Way, Suite 300, Santa Maria, CA 934 www.oecusa.com FAX: (805) 925-3376 <br />Page 4 of 87 <br />