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A � <br /> r <br /> STI.Seattle <br /> 5755 8t'Street East <br /> STL Tacoma,WA 98424 <br /> ' Tel: 253 922 2310 <br /> Fax 253 922 5047 <br /> www.sti-ino.com <br /> DATA QUALIFIERS AND ABBREVIATIONS <br /> 131: This analyte was detected in the associated method blank. The analyte concentration was determined not <br /> to be significantly higher than the associated method blank (less than ten times the concentration reported <br /> in the blank). <br /> 132: This analyte was detected in the associated method blank. The analyte concentration in the sample was <br /> determined to be significantly higher than the method blank(greater than ten times the concentration <br /> reported in the blank). <br /> Cl: Second column confirmation was performed. The relative percent difference value (RPD) between the <br /> results on the two columns was evaluated and determined to be <40%. <br /> C2: Second column confirmation was performed. The RPD between the results on the two columns was <br /> evaluated and determined to be >40%. The higher result was reported unless anomalies were noted. <br /> C3: Second analysis confirmation was performed. The relative percent difference value (RPD) between the <br /> results on the two columns was evaluated and determined to be < 30%. <br /> C4: Second analysis confirmation was performed. The RPD between the results on the two columns was <br /> evaluated and determined to be > 30%. The original analysis was reported unless anomalies were noted. <br /> M: GC/MS confirmation was performed. The result derived from the original analysis was reported. <br /> D: The reported result for this analyte was calculated based on a secondary dilution factor. <br /> E: The concentration of this analyte exceeded the instrument calibration range and should be considered an <br /> estimated quantity. <br /> J: The analyte was analyzed for and positively identified, but the associated numerical value is an estimated <br /> quantity. <br /> MCL: Maximum Contaminant Level <br /> MDL: Method Detection Limit <br /> RL: Reporting Limit <br /> N: See analytical narrative <br /> ND: Not Detected <br /> X1: Contaminant does not appear to be"typical"product. Elution pattern suggests it may be <br /> X2: Contaminant does not appear to be "typical" product. <br /> X3: Identification and quantitation of the analyte or surrogate was complicated by matrix interference. <br /> X4: RPD for duplicates was outside advisory QC limits. The sample was re-analyzed with similar results. The <br /> sample matrix may be nonhomogeneous. <br /> X4a: RPD for duplicates outside advisory QC limits due to analyte concentration near the method practical <br /> quantitation limit/detection limit. <br /> X5: Matrix spike recovery was not determined due to the required dilution. <br /> X& Recovery and/or RPD values for matrix spike(/matrix spike duplicate) outside advisory QC limits. Sample <br /> was re-analyzed with similar results. <br /> X7: Recovery and/or RPD values for matrix spike(/matrix spike duplicate)outside advisory QC limits. Matrix <br /> interference may be indicated based on acceptable blank spike recovery and/or RPD. <br /> X7a: Recovery and/or RPD values for this spiked analyte outside advisory QC limits due to high concentration <br /> of the analyte in the original sample. <br /> X8: Surrogate recovery was not determined due to the required dilution. <br /> X9: Surrogate recovery outside advisory QC limits due to matrix interference. <br /> CE <br /> m <br /> 41 <br /> QAM REV 16 1/2003 <br />