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404 N Wiget"ne <br /> Sequoia Walnut Creek CA 94598 <br /> (925)988-9600 <br /> Analytical FAX(925)988-9673 <br /> FAX sequoWabs win <br /> Gettler Rvan Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal# 2859 Reported: <br /> Dublin CA 94568 Project Manager Scott Polston 10-Jul-0l 11 20 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX in Air by DHS LUFT <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analvte Result Limit Units DilutLon Batch Prepared Analyzed Method Notes <br /> VE-IQ 1440(W 106451-05)Air Sampled 21-Jun-01 14 40 Received 22-Jan-01 15 55 <br /> Purgeable Hydrocarbons 22 28 ppmv 1 1F22003 25-Jun-01 25-Jul-01 DHS LUFT <br /> Benzene 024 0 016 " <br /> Toluene 0 14 0 013 " <br /> Ethylbenzene 0 040 0 012 " <br /> Xylenes(total) 0 16 0 012 " <br /> Methvi tert-butvl ether ND 0 14 " <br /> i <br /> Sequoia Analytical - Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 5 of 8 <br />