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680 peake Drive Redwood City CA <br /> (650)364 9600 FAX(650) 364 9233 <br /> esa <br /> Sequoia 404 Nh WiSet Lae Walnut Creek CA 9459894063 <br /> (925)988 9600 FAX(925)988 9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)921 0100 <br /> Analytical 1555 McDowellA ad North Ste D SanalCuarla CA 94954 (707) 792 1865 FAX(707)792 rlos CA 94070 41 11 (650)232 9600 FAX(650)232 9612 <br /> Gettler Ryan,Iau. -Dublin / Piojee t Tosco <br /> 6747 Sierra Court Suite J Project Number ToSLO#6981 Reporti`.d <br /> Dublin CA 94568 Project Manager Steve Carter 04-Oct-99 09 27 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Ci eek <br /> Reporting Spike Source %REC RPD <br /> Anal to Result Limit Units Level Result %REC Limits RPD Ltinit Note <br /> Batch 9I21012 Prepared 16-Sclr-99 Using EPA 5030B [P/TJ <br /> Blank (9121012-BLKI) <br /> Purge,ible Hydros irhons ND 10 mg/m'Air <br /> BL:izene ND 010 <br /> I oluene ND 0 10 " <br /> Ethflhcnzene ND 010 <br /> \vlenes(lord) ND 0 10 " <br /> Meth?1 tert hut)I ether ND 050 <br /> Surrogate a a a Tti luorotoluene 540 600 900 70-130 <br /> Blank(9I21012-BLK2) <br /> Purgeahle Hvdrocarhons ND 10 mg/m'Air <br /> Benzene ND 010 <br /> *n� ND 0 10 <br /> tN henzena ND 010 <br /> \vlenes(total) ND 0 10 <br /> A1ethNI tert-butyl ether ND 050 <br /> Suri ogate a a a Ti lfluo)otoluene 592 600 987 70-130 <br /> Blank (9121012-BLK3) <br /> Purge-ible H}drocarbona ND 10 mgrm'Air <br /> Benzene ND 010 " <br /> Toluene NTD 0 10 <br /> Ethflbenzene ND 010 <br /> \�lerie,(tot-kl) ND 0 10 <br /> Medi)1 tert but\I ether ND 0 50 <br /> Srurogate aaa-Trifluoiotoluene 561 600 940 70130 <br /> LCS(9121012-BSI) <br /> Benzene 1 82 0 10 nig/rn'Air 200 910 70-130 <br /> Toluene 1 62 0 10 200 810 70-130 <br /> Ethylhenzene 1 73 0 10 200 865 70-130 <br /> \ylLnee(totiil) 562 0 10 600 937 70-130 <br /> S;irrogerle a a a-Trri luorotobune 544 600 907 70-130 <br /> nota Analytical -Walnut Creek The results 1n this report apply to the smnples analy,ed r n accordtmee is 1111 the CIA=of <br /> custody document This amlyucal report nuist be reproduced mils entrrety <br /> Ju a 1eFegley, P_rqJcctM4iagcJPage 4 of 8 <br />