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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMP$ELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell com E-mail main@mccampbell com <br /> Advanced GeoEnviroriniental Client Project ID Comfort Air Date Sampled 11/12/01 <br /> 837 Shaw Road Date Received 11/13/01 <br /> Stockton,CA 95215 Client Contact Paul Dotson Date Extracted 11/15-11116101 <br /> Client P O Date Analyzed 11/15-11/16/01 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* & BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602 California RWQCB(SF Bay Region)method GCFID(5030) <br /> LabEthyl- %Recovery <br /> Client ID Matrix TPH(g) MTBE Benzene Toluene Xylenes <br /> ID I I I benzene Surrogate <br /> 83462 MW1/111201 W 140,OOO,a NDc200 10,000 25,000 3700 16,000 100 <br /> I 83463 MW2/111201 W 250,a ND 44 6 6 25 44 --- <br /> 83464 <br /> -83464 MW3/111201 W 430,a ND 30 12 4 8 91 ---" <br /> I83465 MW4/111201 W ND ND ND ND ND ND 95 <br /> 83466 MW5/111201 W ND ND ND ND ND ND 99 <br /> 83467 MW6/111201 W 5600,a ND<20 590 390 180 240 115 <br /> • 83468 MW7/111201 W 61,17 ND ND ND ND ND 103 <br /> 83469 MW8/111201 W ND ND ND ND ND ND 103 <br /> I <br /> Reporting Limit unless W 50 ug/L 5 0 05 0 5 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 10 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> I "cluttered chromatogram,sample peak coelutes with surrogate peak <br />`! *The following descriptions of the TPH chromatogram are cursory in nature and McCarnpbell Analytical is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are sign ificant(aged <br /> gasolineg), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant biologically altered gasoline',e)TPH pattern that does not appear to be derived from gasoline(9),f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen is present,i)liquid sample that contains greater than---5 vol %sediment,))no recognizable pattern <br /> DHS Certification No 1644 J%_ t Edward Hamilton,Lab Director <br /> 1 <br />