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Project Number. SFB-175-0204.72 <br /> Consultant Project Number: 203-175-3291 <br /> Contract Number: N46CWCO244-9-X <br /> Facility Number 9-0557 <br /> WorlF Order Number: D004140 <br /> Report Issue Date: April 10, 1990 <br /> OA Conformance Summary <br /> Total Petroleum Hydrocarbons as Gasoline, Diesel, and Waste Oil in Soil <br /> Modified EPA Method 8015 <br /> 1.0 Blanks <br /> The Reagent blank was below the detection Iimit as shown in Table 2. <br /> 2.0 Surrogate Compound Recovers <br /> Percent recovery limits were met for the surrogate compound (Octadecane) for all samples <br /> as shown in Table 3. <br /> 3.0 Matrix Spike (MSI Accuracy <br /> Percent recovery limits were met for diesel in the MS as shown in Table 4. <br /> i <br /> 4.0 Sam le Duplicate Precision <br /> Relative percent difference (RPD) criterion was met for all analytes in the sample duplicate <br /> as shown in Table 5. <br /> 5.0 Sample Handli� <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 /> GTEL Concord,CA Page 2 of 5 <br /> D004140.DOC <br /> GTEL V <br /> lAlOA AJOA1E 5. INC <br />