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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord California 94520 <br />' (510) 686-9600 • FAX (510) 686-9689 <br /> West (Walnut Creek) Client Project ID #1572 04 Sampled Apr 3. 1992 <br /> P <br /> 8atelhoDr, Suite 260 Matnx Descript Water Received Apr 3, 1992 <br /> ut Creek, CA 94598 Analysis Method EPA 5030/8015/8020 Analyzed 4/14 /15/92 <br /> Attention Bruce Pfasf First Sample# 204-0109 Reported Apr 22, 1992 <br />' EX DISTINCTION EPA 8015/8020) <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with BT <br />' Sample Sample Low/Medium B P Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> ug/L ug/L ug/L ug/L ug/L <br />' (ppb) (ppb) (ppb) (ppb) (Ppb) <br /> 204-0109 Mw-3A N D 082 069 052 1 8 <br /> 204-0110 Trio Blank N D <br /> ND ND ND ND <br />' 204-0111 Mw-4A N D N D N D N D. N D <br /> 204-0112 Feld Blank N D N D N D N D N D <br /> b204-0113 Rinsate N D N D N D N D N D <br /> Detection Limits 30 030 0.30 030 0.30 <br /> w to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard <br /> Anaiytes reported as N D were not present above the stated limit of detection <br /> lk'QUOIA ANALYTICAL <br /> Kenneth K F Lee 2040108 ERM <2> <br /> Laboratory Manager <br />