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M4, Laboratories, Inc. 1� <br />Environmental Testing Laboratory Since 1949 <br />ence Livermore National Laboratory Project: LLNL Reported: 09/05/2008 9:38 <br />Box 808 Project Number: CES <br />more, CA 94551 Project Manager: Chad Davis GOC Number: <br />tituent <br />1 Grease <br />EPA Method 1664 <br />Quality Control Report - Precision & Accuracy <br />Source <br />Batch ID QC Sample Type Sample ID <br />BRH1990 Duplicate 0810740-14 <br />Matrix Spike 0809520-84 <br />Matrix Spike Duplicate 0809520-84 <br />Source <br />Result Result <br />0.20000 ND <br />-0.20000 37.400 <br />-0.20000 30.000 <br />Control Limits <br />Spike Percent Percent <br />Added Units RPD Recovery RPD Recovery La_ b Qualls <br />mg/L 18 <br />38.050 mg/L 98.3 78-114 <br />38.050 mg/L 22.0 78.8 18 78 - 114 Q02 <br />The results in this report apply to the samples analyzed in accordance with the chain ojcustody document. This analytical report must be reproduced in its entirety. <br />All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. <br />4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com <br />Certifications: California - ELAP Certification Number 1186: Nevada Administrative Code - NAC -445A <br />Page 9 of 13 <br />