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SEQUOIA ANALYTICAL FEB <br /> . P y 1900 Bates Avenue Suite LM Concord.Calitorrna 94520 2 <br /> 1510) 686.9600 • FAX {510) 686-9689 <br /> t Ahon Geoscier�ce <br /> Client f'�o eot 10: Forms Mobil#00-M 30.0138.10 Sampled: ,tan 2243 , <br /> '5870 Stoneridge Drive, Suite 6 Sample Matrbc: Water Received: Jan 25, 1993 <br /> 'Pleasanton,CA 94588 Analysis Method: EPA 5030/8015/8020 Reported: Jan 29, 1993 <br /> Attention: Stephan Rosen First Sample #: 301 0603 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample <br /> Analyte Limit I.D. <br /> ,Ug/, 301-0609 301-0644 301-0605 <br /> AW4 AW-0 AW-9 <br /> Purgeable <br /> Hydrocarbons 50 N.D. N.D. N.D. <br /> Benzene 0.5 N.D. N.D. 0.70 <br /> Toluene 0.5 N.D. N.D. N.D. <br /> • Ethyl Benzene 0.5 N.D. N.D. N.D. <br /> Total Xylenes 0.5 N.D. N.D. N.D. <br /> Chromatogram Pattern: -- -- <br /> Duality Control Daus <br /> Report limit Multiplication Factor. 1.0 1.0 1.0 <br /> Date Analyzed: 1/26/93 1126/93 1/26/93 <br /> instrurnent Iderd5cation: HP4 HP4 HP4 <br /> Surrogate Recovery,96: 103 103 105 <br /> (OC Limits - 70-130%) <br /> Forgeable Hydrocarbons are quanotated against a fresh gasoline standard. <br /> Analytes reported a N.D.were not detected above the stated reporting*n1L <br /> ZSEOANALC/AL <br /> Prntar4 Manaaer 30106+ ALT <2y <br />