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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> Geological Audit Services Client Project ID Comfort Air DateSampled 01/25/94 <br /> 1803 West March Lane,Ste A Date Received 01/26/94 <br />' Stockton,CA 95207 Client Contact Bob Marty Date Extracted 01/27-01/28194 <br /> Client P 0 Date Analyzed 01/27-01/28/94 <br /> IGasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> EPA methods 5030,modffeed 8015,and 8020 or 602,California RW CB SF Bav Re on method GCFID 5030 <br /> I Lab ID Client ID Matrix TPH(g)- Benzene Toluene Ethylben- Xylenes %Rec <br /> zene Surrogate <br /> 34017 MW-4/1-25-94 W 1400,a 460 25 75 22 97 <br /> I34018 Drum 1-9 W ND ND ND I ND ND 96 <br /> IDetection Lmut unless other- W 50 ug/L 05 05 05 05 <br /> wise stated,ND paeans Not <br /> Detected S 10 mg/kg 0 005 0 005 0 005 0 005 <br /> I *water samples are reported in ug/L,soil samples in mg/kg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram,sample peak co-elutes with surrogate peak <br /> + The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not <br /> responsible for their interpretation a)unmodified or weakly modified gasoline is sigmfiicant,b) heavier gasohne <br /> range compounds are significant(age gasoline?),c)fighter gasoline range compounds(the most mobile fraction) <br /> are significant d)gasoline range compounds are SINcanf,no recognizable pattern e) TPH pattern that does <br /> not appear to be derived from gasoline {?) fl one o a few isolated peaks present,g5 strongly aged gasoline or <br /> diesel range compounds are significant, )lighter than water Mtmccibie phase is present <br /> DHS Certification No 1644 '/�Z Edward Hamilton,Lab Director <br /> I <br />