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' Sequoia 1551 Indusinal Road <br /> 4D San Carlos CA 94070 <br /> '�► Analytical (650)232-9600 <br /> FAX(650)232-9612 <br /> www sequoi alahs com <br /> ttler-Ryan/Geostrategtes(1} Project Unocal(4) <br /> 47 Sierra Court, Suite J Project Number Former Unocal#5098&Montgmery Ward Reported <br /> IS <br /> blin CA, 94568 Project Manager Deanna Harding 03/26/02 12 44 <br /> Total Purgeable Hydrocarbons by DHS LUFT-Quality Control <br /> Sequoia Analytical - San Carlos <br /> Reporting Spike Source %REC RPD <br /> L1Anafyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> atch 2030037-EPA 5030B (P/T <br /> �Ink2030037-BLKI} Prepared&Analyzed 43/15/02e Hydrocarbons as Gasoline ND 50 ug/l <br /> 5uriogate a s a-Trifluorotoluene 8 69 10 0 <br /> 859 <br /> 60-140 <br /> C8(2030037-1351} Prepared&Analyzed 03/15/02 <br /> urrogate aaa-Trifluorotoluene 101 ug/1 100 101 60-140 <br /> LCS(2030037-BS2} Prepared&Analyzed 03/15/02 <br /> urgeabf0 Hydrocarbons as Gasoline 22R 50 ug/1 250 91 2 74-130 <br /> urrogate aaa-Trifluorotoluene 105100 <br /> 105 60-140 <br />,,Matrix Spike(2030037-MSI) Source L203015-36 Prepared&Analyzed 03/16/02 <br /> urrogate a s a-Trifluorotoluene 854 149/1 J 100 854 60-140 <br /> Matrix Spike Dup (2030037-MSD1) Source L203015-36 Prepared&Analyzed 03/16/02 <br /> WBa <br /> te a a a-Trifluorotoluene 853 ug/l 100 853 60-140 <br /> t 2030038-EPA 5030B (PIT <br /> lank(2030038-BLKI) Prepared&Analyzed 03/15/02 <br /> urgeable Hydrocarbons as Gasoline ND 50 ug/I <br /> Srarogate a a a-Trifluorotoluene 106 100 106 60 140 <br /> CS(2030038-BSI) Prepared&Analyzed 03/15/02 <br /> un ogate a a a-Trifluorotoluene 110 49/1 100 - 110 60-140 <br /> GS(2030038-BS2) Prepared&Analyzed 03/15/02 <br /> urgeable Hydrocarbons as Gasoline 315 50 ug/I 250 126 70-130 <br /> Sur rugate a a a-Trifluorotoluene 11 7 100 117 60-140 <br /> r <br /> r <br /> Sa Analytical - San Carlos The results in this report apply to the samples analyzed in accordance with the chain of <br />' custody document This analytical report must be reproduced in its entirety <br />' Page 78 of 9l <br />