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0 <br />H <br />r' <br />0 <br />U <br />11 <br />0 <br />I <br />McCampbell Analytical, nc. <br />4 <br />110 2nd Avenue #D7, Pacheco, CA 94553-5560 <br />Telephone : 925-798-1620 Fax: 925-798-1622 <br />Website: www.rwcampbell.com E -ma& mainQmccampbeq.com <br />1 <br />Shaw Environmental <br />4005 Port Chicago Hwy <br />Concord, CA 94520 <br />Client Project ID: San Joaquin Garage <br />Date Sampled: 05/18/04 <br />Date Received: 05/18/04 <br />Client Contact: Rob Delnagro <br />Date Extracted: 05/18/04 <br />Client P.O.: <br />Date Analyzed: 05/19/04 <br />Gasoline Range (C6 -C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br />Extractionrrrethod: SW5030B Analyticalmethods: SW8021B/8015Cm Work Order. 0405272 <br />Lab ID <br />Client ID <br />Matrix <br />TPH(g) <br />MTBE <br />Benzene <br />Toluene <br />Ethylbenzene <br />Xylenes <br />DF <br />% SS <br />001A <br />UP -1 <br />S <br />ND <br />— <br />ND <br />ND <br />ND <br />ND <br />1 <br />103 <br />Reporting Lirnit for DF =1; W NA NA NA NA NA NA 1 ug/L <br />ND mans not detected at or <br />above the reporting limit S 1.0 0.05 0.005 0.005 0.005 0.005 1 mg/1C9 <br />* water and vapor samples and all TCLP & SPLP extracts are reported in µg/L, soil/sludge/solid samples in mg/kg, wipe samples in µg/wipe, <br />product/oil/non-aqueous liquid samples in mg/L. <br /># cluttered chromatogram; sample peak coelutes with surrogate peak. <br />+The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their interpretation: a) <br />unmodified or weakly modified gasoline is significant; b) heavier gasoline range compounds are significant(aged gasoline?); c) lighter gasoline range <br />compounds (the most mobile fraction) are significant; d) gasoline range compounds having broad chromatographic peaks are significant; biologically <br />altered gasoline?; e) TPH pattern that does not appear to be derived from gasoline (stoddard solvent / mineral spirit?); f) one to a few isolated non -target <br />peaks present; g) strongly aged gasoline or diesel range compounds are significant; h) lighter than water immiscible sheen/product is present; i) liquid <br />sample that contains greater than -•1 vol. % sediment; j) reporting limit raised due to high MTBE content; k) TPH pattern that does not appear to be <br />derived from gasoline (aviation gas). m) no recognizable pattern. <br />DHS Certification No. 1644 <br />Angela Rydelius, Lab Manager <br />