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' + 110 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> 14 lVMcCampbell Analytical Inc Telephone 925-798 1620 Fax 925-798-1622 <br /> hap//www mccampbell com E-mail main®mccampbcll com <br />' Shaw Environmental Client Project ID #77995063040000, 7- Date Sampled 10/15/02 <br /> • 4005 Port Chicago Hwy 11 #17334 Date Received 10/17/02 <br />' Concord, CA 94520 Client Contact Shelby Lathrop Date Extracted 10/19/02-10/23/02 <br /> Client P O Date Analyzed 10/19/02-10/23/02 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021B18015Cm Work Order 0210322 <br />' Lab ID Client ID Mainz TPH(g) MTBE Benzene 1 Toluene Ethylbenzene Xylenes DF %SS <br /> 001A MW4 W 390,a 1100 ND 5 1 082 0 94 1 ---# <br />' 002A MW-2 W ND ND ND ND ND ND 1 105 <br /> 003A MW-3 W ND ND ND 0 92 ND ND 1 100 <br /> 1 004A MW-5B W ND ND ND ND ND ND 1 100 <br /> 005A MW-5A W 23,000,a 160 1300 3100 1000 3900 10 ---# <br /> 1• <br /> 1 <br /> Reporting Limit for DF=1 W 50 so 05 0 5 05 0 5 1 pg/L <br /> ND means not detected at or <br />' above the reporting limit S NA NA NA NA NA NA 1 mg/Kg <br /> "water and vapor samples are reported in ug/L,soli and sludge samples in mg/kg,wipe samples in ug/wipe,product/oil/non-aqueous liquid samples in <br /> mg/L,and TCLP extracts in ug/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 gasoline9),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 gasoline9,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent) f)one to a few isolated non-target peaks present, <br /> g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible sheen/product is present,i)liquid sample that <br /> contains greater than—2 vol %sediment,3)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be derived from <br />' gasoline(aviation gas) m)no recognizable pattern <br /> • DHS Certification No 1644 Edward Hamilton,Lab Director <br />