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1 <br />Certificate of Analysis <br />Week Laboratories, Inc <br />Weck Laboratories. <br />Analytical Laboratory Services - Since 1964 <br />Metals (Non -Aqueous) by EPA 6000/7000 Series Methods - Quality Control <br />Sample QC Spike1C RPD <br />Analyte Result Result Qualifier Units Level %olu <br />REC imrts RPD Limit <br />Batch MLMA. 0 - FPA 7471A <br />Blank W7H0450-BLK1) _ _ _ Prepared: 08/10/07 Analyzed: 08/17/07 _ <br />Mercury, Total ................................. ND ug/kg <br />LCS (W7H0450-BS1�___ I'm pared:_08/10/07.__Analyzed: 08/17/07_ <br />Mercury, Total ................................. 81.5 ug/kg 80.6 101 80-120 <br />Matrix Spike (W7H0450-MS1) Source: 7080825-01 Prepared: 08/10/07_ Analyzed:_08_/17/07___________ <br />Mercury, Total.................................11.3 84.4 ug/kg 83.3 88 70-130 <br />Matrix Spike DupW7H0450_MSDl) Source: 7080825-01 Pared: 08/10/07 Analyzed: 08/17/07 <br />Mercury, Total.................................11.3 81.9 ug/kg 83.3 85 70-130 3 25 <br />Authorized Signature ELAP # 1132 <br />Contact: Kim G Tu) <br />Pro, ect Manager) LACSD # 10143 <br />( NELAC # 04229CA <br />7� � <br />The results in this report apply to the samples analyzed in accordance with the chain of custody document. Weck Laboratories certifies that the test results meet all <br />requirements of NELAC unless noted in the Case Narrative. This analytical report must be reproduced in its entirety. <br />Notes: <br />The Chain of Custody document is part of the analytical report. <br />Any remaining sample(s) for testing will be disposed of one month from the final report date unless other arrangements are made in advance. <br />All results are expressed on wet weight basis unless otherwise specified. <br />ND = NOT DETECTED at or above the Reporting Limit. If J -value reported, then NOT DETECTED at or above the Method Detection Limit (MDL). <br />Sub = Subcontracted analysis, original report enclosed. <br />Dil = Dilution Factor <br />MDL = Method Detection Limit <br />MDA = Minimum Detectable Activity <br />An Absence of Total Coliform meets the drinking water standards as established by the State of California Department of Health Services. <br />The Reporting Limit (RL) is referenced as laboratory's Practical Quantitation Limit (PQL). <br />For Potable water analysis, the Reporting Limit (RL) is referenced as Detection Limit for reporting purposes (DLRs) defined by EPA. <br />If sample collected by Weck Laboratories, sampled in accordance to lab SOP MIS002 <br />Lab#:7080621 Page 2 of 3 <br />14859 East Clark Avenue, City of Industry, California 91745-1396 (626) 336-2139 FAX (626) 336-2634 <br />www.wecklabs.com <br />