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arvis Drive <br /> Sequoia MorganHsl)CA 95037 <br /> (408) 776-9600 <br /> 4D- 0 <br /> Analytical FAX(408) 782-6308 <br /> rf <br /> Blaine Tech Services(Shell) Project Equiva Sampled 7127199 <br /> 1680 Rogers Avenue Project Number 2575 Country Club, Stockton Received 7128199 <br /> San Jose, CA 95112 Project Manager Ann Pember Reported 8118199 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Morgan Hill <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Matrix Spike Dup teontinued) 908030_0-MSD1 9070121-15 <br /> Surrogate a a a-Trtfluorotoluene 8/10/99 100 11 1 ug/1 700-130 111 <br /> Batch 9080301 Date Prepared 8/10199 Extraction Method EPA 5030B PIT <br /> Blank 9080301-BLK1 <br /> Purgeable Hydrocarbons 8/10199 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl ter -butyl ether ND 2 50 <br /> Surrogate a a a-Tri luorotoluene 100 9 60 700-130 960 <br /> #bie <br /> 9080301-BS1 <br /> Hydrocarbons _ 8/10/99 250 _ _ 234 ug/l 700-130 936 <br /> ate a a,a-Trifluorotolt.ene 100 13 5 700-130 135 4 <br /> Matrix Spike 9080301-MSI 9070137-02 <br /> Purgeable Hydrocarbons _ 8/10/99 250 ND 238 ug/l 600-140 952 <br /> Surrogate a a a-Trtfluorotoluene _ " 100 13 i 700-130 135 4 <br /> Matrix Spike Dup 9080301-MSDI 9070137-02 <br /> Purgeable Hydrocarbons 8110/99 250 ND _20_1 _ug/l 600-140 804 250--- 169 <br /> Surrogate a s a-Trtfluorotoluene 11 !0 0 12 7 11 700-130 127 <br /> Batch 9080390 Date Prepared 8/11/99 Extraction Method EPA 5030B IP/TI <br /> Blank 9080390-BLK 1 <br /> Purgeable Hydrocarbons 8/11199 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether - _ ____T_ ND-- "_ �_ __ _2 50_ <br /> Surrogate a,a a-Trtfluorotoluene 10 0 950 700-130 95 0 <br /> LCS 9080390-BSI <br /> Benzene 8/11/99 100 870 ug/l 700-130 870 <br /> Toluene 100 990 700-130 99 0 <br /> Ethylbenzene 100 100 700-130 100 <br /> Xylenes(total) _ _ 300 31 0 700-130 103 _ <br /> Sw <br /> te a a a-Trrfluorotoluene Nl 0 J 950 700-130 95 0 <br /> Sequoia Analytical-Morgan Hill *Refer to end of report for tent of notes and definitions <br /> Page 15 of 18 <br />