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Sequoia 885 Jarvis 5037 <br /> Morgan Hill CA 95037 <br /> 4t-5)-„ Analytical (408) 772-9600 <br /> FAX(408) 782-6308 <br /> ATC Associates,Inc -Modesto Project KOK Realty Sampled 9/27199 <br /> 1117 Lone Palm Avenue Project Number 5462581 0001 Received 9130199 <br /> Modesto CA 95351-1502 Project Manager Tom Lutterman Reported 10/18/99 <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 /> LCS 9100093-BSI <br /> Benzene 10/5/99 9 92 ug/1 700-130 <br /> Toluene 10 4 700-130 <br /> Ethylbenzene 11 1 700-130 <br /> Xylenes(total) 33 7 700-130 <br /> Surrogate a a a-7ri17uorotoluene10 0 963 <br /> 70 0-130 96 3 <br /> Matrix Spike 9100093-MSI M909962-01 <br /> Benzene 10/5/99 100 ND 104 ug/l 600-140 104 <br /> Toluene 100 ND 11 1 600-140 111 <br /> Eth)lbenzere 100 ND 1110000 60 0-1401100000 <br /> Xylenes(total) 30 0 ND 35_1 600-140 117 <br /> Surrogate a a a4riflue rototuene - _ 100 10 8mm ”--- 700-130 108 - --- - --Ashrix Spike Dup 9100093-MSD1 M909962-01 <br /> .zene 10/5/99 100 ND 10 3 ug/l 600-140 103 250 0 966 <br /> Toluene 100 ND 109 600-140 109 25 0 1 82 <br /> Ethylbenzene too ND 11 5 600-140 115 250 200 <br /> Xylenes(total) _ _ _ 300 ND 33 9 600-140 113 25 0 3 48 <br /> Surrolrate G a a-Trr9uo,oio1aene 100 - 102 - -- - 700-130 102 --------� —-- - <br /> Batch 9100143 Date Prepared 1016199 Extraction Method „EPA 5030E lP/Tl <br /> Blank 9100143-BLK1 <br /> Purgeable Hydrocarbons 1016199 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 /> Methyl tert-butyl ether _ _ _ _ ND _ 2 50 <br /> Surrogate aaa-Tri{luorotoluene 100 - _ 112 700-130 112 <br /> LCS 9100143-BSI <br /> Purgeable Hydrocarbons_ 10/6/99 250 _ 259 ug/1 _ 700-130 104 <br /> Surrogate a a a-Trri luorotoluene 11100 143 700-130 143 - <br /> Matrix Spike 9100143-MS1 M909983-01 <br /> Purgeable Hydrocarbons _ _ 1016/99 250_ ND _235 ug/160_0-14_0 94 0 <br /> cfl _ <br /> Surrogate a a a-Truorotoluene - - — 10 0 J� - - T- I1 0 - 70 0-130 <br /> Matrix Spike Dup 9100143-MSD1 M909983-01 <br /> Purgeable Hydrocarbons _ 10/6/99 250 ND _ 235 Ug/1 600-140 940 250 0 _ <br /> wale a a a-Trifluorotoluene 106 - 115 700-130 115 <br /> Sequoia Analytical-Morgan Hill *Refer to end of report for text of notes and definitions <br /> Page 6 of 8 <br />