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885 Jarvis Drive <br /> Sequoia Morgan Hill CA 95037 <br /> 1 4.a)- (408) 776-9600 <br /> Analytical FAX (408) 782 6308 <br /> Blaine Tech Services(Shell) ProJeLt Equina Sampled 10/28/99 <br /> 1680 Rogers Avenue. Project NumbLr 2575 Country ( lub 15toc.kton Recened 10/29/99 <br /> San Jose CA 95112 Project Manager Leah DaN is Reported 1213199 <br /> Total Purgeable Hydrocarbons(C6-C12), BTEX and MTBE by DHS LUFTIQuality Control <br /> Sequoia Analytical - Morgan Hill <br /> Date Spike Sample QC Reporting Limit ReLOV RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Nates* <br /> LCS 9110154-BSI <br /> Benzene 1114199 too 10 2 ug/l 700-130 102 <br /> Toluene 100 9 98 700-130 998 <br /> Ethylbenzene 100 102 700-130 102 <br /> Xvlenes(total) 300 303 700-130 101 <br /> Surrogate a a a-Try7uorotoluene 100 927 700-130 92 7 <br /> Matrix Spike 9110154-MSI M910AAU-08 <br /> Benzene 11/4/99 too ND 970 ug11 600-140 970 <br /> Toluene too ND 955 600-140 95 5 <br /> Fth,�lbenzeile, too ND 9 74 60 0-1 40 974 <br /> Xylenes(total) 300 ND 289 600-140 963 <br /> Surrogate a a a-Trruorotoluene 100 847 70 0-1 30 84 <br /> INIMrix S ike Dup 9110154-MSDI M910AAU 08 <br /> ne 1 114199 10 0 ND 9 94 ug11 6U 0-140 094 2-50 2 44 <br /> Ta uene 100 ND 979 600-140 979 2 11 0 248 <br /> Ethylbenzene too AID too 600-140 1100 25 0 263 <br /> Xylenes(total) 300 ND 29 5 600-140 983 25 0 206 <br /> Suerogate aaa-Trrfluorotoliecre 100 3 s2 700-130 85 <br /> Batch 9110155 Date Pre -ired 11/4/99 Extraction Method EPA 5030B IP/TI <br /> Blank 9110155-BLKI <br /> Purgeable Hydrocarbons 11/4/99 ND ug/I 500 <br /> Benzene ND 0 500 <br /> 1 oluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> MethNI tert-butyl ether ND 2 50 <br /> Surrogate a a a-Trrlluorotoluene 100 102 700-130 102 <br /> LCS 9110155-BSI <br /> Benzene 11/4/99 100 105 ug/1 700-130 105 <br /> Toluene 100 10 1 700-130 101 <br /> Ethylbenzene 100 105 700-130 105 <br /> Xy lenLS(total) 300 31 6 70 0 t30 105 <br /> Surrogate a a a-Trifluorotoluene 10 0 102 700-130 102 <br /> Matrix Spike_ 9110155-MSI M910982-02 <br /> Benzene 11/4/99 too N1) 9 67 ug/l 600-140 967 <br /> Toluene 100 ND 943 600-140 943 <br /> f i-wLM too ND 962 " 600-140 962 <br /> Sequoia Analytical - Morgan 111111 *Refer to enol of report foe tett of notes crud dcfuntions <br /> Page 16 of 25 <br />