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ROY F. WESTON, INC. <br />STOCKTON ANALYTICAL LABORATORY <br />ORGANICS CASE NARRATIVE <br />Client: SIEBOLD <br />RFW# 90085008 <br />W.0- #: 6130-01--01-0000 <br />FRACTION: PURGEABLE PETROLEUM XYDROCAP.BONS BY MOD. 8015 <br />1. These samples were extracted on 08/13/90. <br />2. These samples were analyzed on 08/13/90 in accordance with <br />Calif. DHS LUFT Manual. <br />3. All required holding tirr- s for these sample analyses were <br />met. <br />4. All calibration criteria were met for all.samples. <br />5. All blanks analyzed were below the limits stipulated in the <br />EPA Contract Lab Program Statement of Work 2/88. Sample <br />concentration data are uncorrected for blanks. <br />6. of the 2 blank spike recoverieE, none were outside of QC <br />limits. <br />7. Of the 1 blank spike relative percent differences, ? was <br />outside of QC limits. <br />8. All retention times were within acceptable limits. <br />me Varela/Date Jo g /Date <br />alyst �rC Ur) t Leader <br />