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j SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue - Suite LM - Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> M-11�est n V Y Client Project ID r #1572 01%Catellus-}Stockton<}^ Samp�ied n$ep i, 1992 <br /> 1777 Botelho Dr, Suite 260 Sample Matrix Water Received Sep 2, 1992 ; <br /> Walnut Creek, CA 94596 Analysis Method EPA 5030/8015/8020 Reported Sep 16, 1992 <br /> Attention Bruce Pfaff First Sample# 209-0040 v <br /> ry ry nv1+}>.Jryk>~h4xi�i4tiJ Sryry SsY rK?�v ry v ^ ` {� v r ryry err v v'• n ♦u r r :ryJv.y'r r ry ♦ v ry v ry~v nJ ry"}r:. ryiiiry+.CL r.n-` ,. <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample <br /> Analyte Limit I D. I D. I.D. I D <br /> Ng/L 209-0040 209-0041 209-0042 209-0043 <br /> MW-2A(1-3) MW-3A(1-3) MW-4A(1-3) Trip Blank <br /> Purgeable <br /> Hydrocarbons 50 350 N D N D N D <br /> Benzene 0 5 22 N D N D N D <br /> Toluene 0 5 N D N D N D N D <br /> Ethyl Benzene 0 5 12 N D N D N D <br /> aTotal Xylenes 05 22 N D N D N D <br /> Chromatogram Pattern Gasoline -- <br /> Quality <br /> -Quality Control Data <br /> Report Limit Multiplication Factor 10 10 10 10 <br /> Date Analyzed 9/8/92 9/8/92 9/8/92 9/8/92 <br /> Instrument Identification HP-2 HP-2 HPA HP-2 <br /> Surrogate Recovery, % 119 103 104 103 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against afresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting lima <br /> 9SE11U IA ANALYTICAL <br /> Kenneth K F Lee <br /> Laboratory Director 2090034 ERM a2> <br />