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i.�'' Q <br /> 4DSequoia 819 Striker Avenue,Suite 8 <br /> Sacramento,CA 95834 <br /> Analytical (916)921-9100 <br /> FAX(916)921-010D <br /> ENSR Project: Public Storage/Tracy Sampled: 9/2/99 j <br /> 1220 Avenida Acaso Project Number: 5555-450-100 Received: 9/2/99 <br /> Camarillo,CA 93012 Project Manager: Vicki Halloway Reported: 9/7/99 <br /> I ° <br /> Total Purgeable Hydrocarbons by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov. Limits % Limit % Notes' t <br /> Batch: 9090015 Date Prepared: 912199 Extraction Method. EPA 5030B(MeOH) <br /> Blank 9090015-BLKI <br /> Purgeable Hydrocarbons 9/2/99 ND mg/kg 1.00 <br /> Surrogate: a,a,a-Trifluorotoluene 0.200 0.228 60.0-140 114 <br /> ISS 9090015-BSI � <br /> Purgeable Hydrocarbons 912199 1.20 1.47 mg/kg 70.0-130 122 <br /> Surrogate: a,a,a-Trifluorotoluene 0.200 0.129 60.0-140 114 <br /> r ' <br /> Matrix Spike 9929015-MSl. 5909002-02 <br /> Purgeable Hydrocarbons 912/99 1.20 ND 1.07 mg/kg 60.0-140 89.2 <br /> Surrogate: a,a,a-Trifluorotoluene 0.200 0.225 60.0-140 112 <br /> Ltrix Spike Dun 9090015-MSDI 5909002-02 <br /> eable Hydrocarbons 9/2/99 1.20 ND 1.08 mg/kg 60.0-140 90.0 25.0 0.893 <br /> Surrogate: a,a,a-Trifluorotoluene 0.200 0.225 60.0-140 112 � <br /> 4 F <br /> II} <br /> 1 <br /> F ' <br /> r <br /> t <br /> r <br /> 7 I <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> Page 7of13 <br />