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October 19 , 1992 <br /> Sample Log 5113 <br /> 1 <br /> The following abbreviations and qualifiers may be present <br /> ' in the analytical reports to follow: <br /> ug/L . Micrograms of target analyte in 1 Liter of sample. <br /> mg/kg : Milligrams of target analyte in 1 kg of sample. <br /> B This data qualifier indicates that a method blank <br /> ' from the analytical batch contained this compound <br /> and the level found in the sample is within 5 times � <br /> that level. Use data with caution. <br /> C This data qualifier indicates that the presence of � <br /> the compound has been confirmed by GC/MS. <br /> ' TCLP Toxicity Characteristic Leaching Procedure <br /> MS Matrix Spike <br /> MSD Matrix Spike Duplicate <br /> RPD Relative Percent Difference (the difference between <br /> two values divided by the mean, expressed as a percentage. <br /> REC Percent Recovery (the ratio between the measured value <br /> ' and the expected value for a spiked sample , expressed <br /> as a percentage. <br /> 1 < : Less than <br /> > : Greater than <br /> t <br /> 1 <br /> Western Environmental Science & Technology • 45133 County Road 32B • Davis, CA 95616 • 916 753-9500 FAX 916 757 4652 <br />