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n <br /> • 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> I:McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax:510-798-1622 <br /> The Mark Group Client Protect ID #921177102 34,Stockton Date Sampled 01/28/94 <br /> Hookstonuare,# 120 Scavenger <br /> �l Date Received 01/28/94 <br /> 3480 Buskirk Avenue Client Contact Robert Spare Date Extracted 01/28-02/03/94 <br /> Pleasant Hill,CA 94523 Client P O #412 Date Analyzed 01/28-02/03/94 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline",with BTEX• <br /> EPA methods 5030 modified 8013 and 8020 or 602 Caltforma RW CB SF Ba Region)method 4CFID 5030 <br /> Lab ID Client ID Matrix TPH(g)+ Benzene Toluene Ethylben- Xylenes %Rec <br /> gene Surrogate <br /> 34046 M W 1R W ND ND ND ND 94 <br /> 34047 MW2R W 1900,b,c 410 24 110 99 <br /> 34048 MW3R W 120,c ND ND ND 108 <br /> E <br /> 34049 MW4 W ND,c ND ND ND 97 <br /> Detection Limit unless other- W 50 ug(L 05 05 0 5 0 5 <br /> wise stated,ND means Not <br /> Detected S 10 mg/kg 0 005 0 005 0 005 0 005 <br /> *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-clutes with surrogate peak <br /> + The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not <br /> i re onsi. for their interpretation a)unmodified or we modified gasoline is siccant,b)heavier gasoline <br /> I range compounds are sigii1ficant(aged gasoline?),c3 h tern rsoltne rage compounrs(the most mobile fraction) <br /> are significant d}ggaasohne range compounds are si canf,no recogiuzable pattern e) TPH pattern that does <br /> not appear to be derived from gasoline �?} one o a few isolated peaks present,g5 strongly aged gasoline or <br /> diesel range compounds are significant, ) ig iter than water menisci le phase is present <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />