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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> ID Analytical <br /> a 1900 Bates Avenue,Suite L Concord CA 94520 (510) 686 9600 FAX(510) 686 9689 <br /> qW Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> MPDS Services Client Project ID Unocal#2859,1665 Pacific Ave,Stockton Sampled Nov 8, 1994 <br /> 2401 Stanwell Dr, Ste 400 Matrix Descript Water Received Nov 8, 1994 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Nov 23, 1994 <br /> Attention Avo Avedisslan First Sample# 411-0522 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Purgeable Ethyl Total <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> ug/L ug/L µg/L ug/L ug/L <br /> 411-0522 MW1 ND ND ND ND ND <br /> I <br /> 411-0523 MW2 120,000 12,000 61,000 6,000 28,000 <br /> 411-0524 MW3 910 83 23 29 50 <br /> 411-0525 MW4 230 059 26 19 51 <br /> 411-0526 MW5 ND ND ND ND ND <br /> 411-0527 MW6 62 074 ND 077 11 <br /> 411-0528 MW7 ND ND ND ND ND <br /> 411-0529 MW8 61* ND ND ND ND <br /> 411-0530 MW9 65* ND ND ND ND <br /> Hydrocarbons detected did not appear to be gasoline <br /> Detection Limits 50 050 050 050 050 <br /> Total Putgeable Petroleum Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as ND were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL, #1271 <br /> Osignature on File <br /> Alan B Kemp <br /> Project Manager <br /> 4110522 MPD <1> <br />