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Sequoia 885 Jarvis Drive <br /> 9 Morgan Hill CA 95037 <br /> Analytical FAX(4081)(408) 782-9600 <br /> ' 78Z-6308 <br /> Ground Zero Analysis,Inc Project Knowles Rock Sampled 6114199 <br /> 1714 Main St Protect Number 96-163 Received 6/15/99 <br /> ' IlEscalon,CA 95320 Prolect Manager JustinPo"ers Reported 6/23/99 <br /> Total Purgeable Hydrocarbons(C6-C12)and BTEX 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 /> tBatch 9060111 Date Prepared 6116199 Extraction Method EPA 5030B IPM <br /> Blank 9060111-BLK1 <br /> Purgeable Hydrocarbons 6/16/99 ND ug/1 500 <br /> ' Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total)__ _ _ ND 0 500 <br /> ' Surrogate a a a-Tri luorotoluene — "--- - 100 — --954 "—�-W 700-130 --95 4 - - ----LL <br /> LC S 9060111-BSI <br /> Purgeable HydrOLarbon- 6/16199 250244 ug/1 _ 70 0-130 97 6 Surrogate a a a-Trrflvorotolaene — 10 0 — 13 6 _ 700-130 136 ----- —W - — 2 <br /> Matrix Spike 9060111-MSI M906124-02 <br /> urgeablc Hydrocarbons — _-6/16199 — 250 ND 172 ug/l 600-140 688 <br /> rrogate a a u-Trrjluorotoluerie 100 105 700-130 105 <br /> Matrix Spike Dup 9060111-MSD1 M906124-02 <br /> _Purgeable Hydrocarbons _ _ _ 6/16/9_9 _250 _ ND_ 177 ug/1 _ 600-140_ 708 250 287 <br /> Surrogate a a a-Trrfluorornluene — <br /> 100 12 p F u 700-130 120 <br /> 1 <br /> t <br /> 0eq=mA,afytical-Morgan Hill *Refer to end ofreport for text of notes and definitions <br /> ' p Page 4 of 6 <br /> `fid' I <br />