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CALIFORNIA WATER IAAA <br /> QUALITY ASSURMCMUALtTY CONTROL <br /> MANAGEMENT SUMMARY <br /> (ContlnUCHO <br /> ConRrmatlona <br /> During organic analysis. all gosltive compounds without an established baseline <br /> are confirmed by a secondary GC column or by GC/MS(accepting those compounds <br /> quantitated by pattern recognition.. i.e..PCBs and gasoline.) <br /> Feld QC Samples <br /> Travel blanks and pump/bailer blanks are analyzed only if the associated samples <br /> contain analytes of interest or if results exceed historical baseline data. <br /> DATA QUALITY ASSESSMENT AND REPORTING <br /> if all data fall within acceptable QC criteria,all calculations have been verified for <br /> accuracy,and all instrumental calibration data are within acceptable range,the data <br /> are passed as valid. in the event 9C does not meet criteria.an immee ia���te review� <br /> of <br /> all raw Hata is conducted to determine the source of the discrepancy <br /> are correct andinstrumenteviewed to evaluate a the potential chemical Interferences. <br /> acceptable. the results are <br /> l:f'it is determined that interferences are present.�ai�evlsed ois r alternate tht there is no <br /> analysis may be selected and the samples rervYs. <br /> other apparent reason for the QC data discrepancy,the samples must be reprepared <br /> and reanalyzed• <br /> prior to final report re tion. <br /> " All results are reviewed by a supervising chemist a lab direetor.� p Pam <br /> and all final reports are reviewed and authorized by <br /> The client must specify the level of 9A/QC reporting required in the results of <br /> analysis prior to beginning the analysis. USEPA Contract b,Program <br /> �ce Manager. <br /> ivalent <br /> data packages can be arranged through the laboratory 9 ty <br /> For Furber informatlon Conloch <br /> Ms.Gtodo Poring <br /> Manager Quality Assurance <br /> California Water Lobs <br /> past 0mca Box 4244 <br /> Modesto,CA 45352 <br /> (209)527-4050 <br /> 6 . <br />