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l� Project Number: SFE3.-175-02D4.72 <br /> Consultant Project Number: 203-175-3291 <br /> Contract Number: N46CVV=44-9•X <br /> Facility Number: 94)557 <br /> W04 Order Number: DOD4129 <br /> Report Issue Date: April 10, 1990 <br /> QA Conformance Summary <br /> Organic Lead In Soil by Flame AA <br /> EPA Method 7420 <br /> 1.0 Blank <br /> The method blank was below the detection limit as shown in Table 2. <br /> 2.0 Initial Instrument Cal& tion <br /> The range of concentrations of the initial instrument calibration are shown in Table 3. <br /> 3.0 Calibration Verification$tandards <br /> 3.1 The control limits were met for the initial calibration verification standard (ICVS) as shown in <br /> Table 4. <br /> 3.2 The control limits were met for the continuing calibration verification standard (CCVS) as <br /> shown in Table 4. <br /> 4.0 5-ample Dul2licatQ Precision <br /> Relative percent difference criterion was met for the sample duplicate as shown in Table 5. <br /> 5.0 Sampip, Handling <br /> 5.1 Sample handling and holding time criteria were met for all samples. <br /> 5.2 There were no exceptional conditions requiring dilution of samples. <br />• <br /> GTEL Concord,CA Page 2 of 5 <br /> D004129.DOC NGTEL <br /> EN V I R O N M E N T A L <br /> ,AOORATORIE S. INC <br />