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r <br /> Sequoia ''` I° r 1551 Industrial Road' <br /> ,!D- <br /> l"AnalyticaSan Carlos, CA 94070-41 I I <br /> IW _ <br /> (650)232-9600 <br /> F' , FAX(650)232-9612 <br /> L <br /> '+ <br /> Gettler-11yan/Geostrategies(1) Protect Unocal(1) r' ° Sampled ,11123/99 as <br /> 6747 Sierra Court,Suite D Project Number 'Unocal SS#0187/Job#280045 Received, 11/24/99, <br /> Dublin,CA 94568 Project Manager- Deanna Hardin ' Reported 12/10/99 <br /> ; 'Total Purgeable Hydroc;i rbons(C6--C12),BTEX" MTBE b- DHS UFTIQnali6, melt i,-,-mI� " I V' i s <br /> s ? ;" � Sequaia Analytical San Carlos h - <br /> &� «.�. "",�. ,.^.., '��4.� :°w-, <br /> C , <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> lAnalyte Analyzed Level Result Result Units ' Recov Limits % Limit <br /> Batch: 9120021 Date Prepared: 1216199 - ' 'Extraction Method EPA 5030B IPM <br /> Blank 9120021-BLKI <br /> F <br /> Purgeable Hydrocarbons as Gasoline 12/6/99 ND ug/1 500 <br /> Benzene , ND 0.500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND It0 500 <br /> Xylenes(total) " NDS „ 10500 <br /> Methyl tert-butyl ether <br /> ND " 500 <br /> Surrogate a,a a-Trifluorotoluene 100 '11 4 7 700-130 114 a <br /> LCS 9120021-BSI <br /> Benzene 12/6/99- 100 a ,` - 877 ug/1- 700-130 `87 ,7 <br /> ,Toluene 100 856 700-130 85 6 <br /> Ethylbenzene 100 880 700-130 88 0 <br /> Xylenes(total) _ " 300 ' ' ` 262 "" '' 700-130 873 <br /> Surrogate a a a-Tri luorotoluene 10 0 r` 104 - 700-130 104 - -- - <br /> LCS 9120021-BS2 <br /> Purgeable Hydrocarbons as Gasoline 12/6/99 250 235 ug/l 700-130 940 <br /> Surrogate a s a-Trfluorotoluene 10 0 116 700-130 116 r <br /> Matrix Spike 9120021-MSI L912037-01 <br /> eable Hydrocarbons as Gasoline 1216/99------250=` -� ND--- - 232 u —`- <br /> - g Y g/l—` —60 0-140—- 92 8--- - <br /> Surrogate a,a a-Trfluorotoluene 100 9 70 700-130 970 <br /> Matrix Spike Dug) 9120021-MSDI L9I2037-01 <br /> Purgeable Hydrocarbons as Gasoline 12/6/99 250 ND 236 ug/l 600-140 944 25 0 171 <br /> Surrogate a,a,a-Trifluorotoluene 11 . 100 r 103 or700-130 - 103 t <br /> Batch 9120022 Date Prepared 12/6/99 Extraction Method- EPA 5030B IPM <br /> Blank 9120022-BLKI <br /> Purgeable Hydrocarbons as Gasoline 12/6/99 ND ug/1 F' Soo <br /> Benzene a ND - 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0.500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate a,a,a-Trifluorotoluene 100 996 700-130 996 <br /> LCS 9120022-BS1 <br /> Benzene 12/6199 100 880 ug/l 700-130 880 <br /> Toluene, - � 100 r' 874 700-130 874 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 22 of 28 <br />