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Weck Laboratories, Inc. <br />Analytical Laboratory Services - Since 1964 <br />Certificate of Analysis <br />Weck Laboratories, Inc <br />Metals (Aqueous) by EPA 6000/7000 Series Methods - Quality Control <br />Sample QC Spikeo//oC RPD <br />Analyte Result Result Qualifier Units Level %REC Lrmrts RPD Limit <br />Batch W7R0426 - EPA 3005A <br />1 <br />Matrix Spike (W7B0426-MS1) <br />Source: 7020240-01 <br />Potassium........................................3.1 65.1 <br />Prepared: 02/12/07 Analyzed: 02/22/07 <br />Magnesium......................................9.6 57.3 <br />mg/1 51.0 93.5 75-125 1.56 20 <br />Calcium............................................18 <br />66.4 <br />mg/1 <br />51.0 94.9 75-125 <br />Potassium........................................3.1 <br />65.9 <br />mg/1 <br />60.0 105 75-125 <br />Magnesium......................................9.6 <br />Sodium.............................................13 <br />58.2 <br />65.7 <br />mg/1 <br />mg/1 <br />51.0 95.3 75-125 <br />51.0 103 75-125 <br />Matrix Spike Dup (W7B0426-MSDI) <br />Source: 7020240-01 <br />Prepared: 02/12/07 Analyzed: 02/22/07 <br />Calcium ............................................ 18 65.3 <br />mg/1 51.0 92.7 75-125 1.67 20 <br />Potassium........................................3.1 65.1 <br />mg/1 60.0 103 75-125 1.22 20 <br />Magnesium......................................9.6 57.3 <br />mg/1 51.0 93.5 75-125 1.56 20 <br />Sodium ............................................. 13 65.2 <br />mg/1 51.0 102 75-125 0.764 20 <br />t%��c5�r�lJ <br />Authorized Signature ELAP # 1132 <br />Contact: Taylor Maligmat (Project Manager) LACSD # 10143 <br />NELAC # 04229CA <br />tv�� �H aCedq�4� <br />s, <br />rt <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 />La #:7020242 26 Page 3 of 4 <br />14859 East Clark Avenue, City of Industry, California 91745-1396 (626) 336-2139 FAX (626) 336-2634 <br />www.wecklabs.com <br />11 <br />11 <br />