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1 <br /> 110 2nd Avenue South, #137,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> Geological Audit Services Client Project ID Pacific Gas Date Sampled 11/03-11/04/93 <br /> 1803 West March Lane,Ste A Date Received 11/05/93 <br /> Stockton,CA 95207 Client Contact Bob Marty Date Extracted 11/05/93 <br /> Client P O Date Analyzed 11/06-11/07/93 <br /> Gasoline Range(C6-02)Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> EPA methods 5030 modified 8015,and 8020 or 602,California RW CB SF Bay Region)method GCFID 5030 <br /> Lab 1D Client ID Matrix TPH(g)+ Benzene Toluene Ethylben- Xylenes % Rec <br /> zene Surrogate <br /> 32947 B 10-35 S ND ND ND ND ND 105 <br />' 32948 B 10-40 S 240,e,d ND< 0 1 ND< 0 1 ND< 0 1 ND< 0 1 95 <br /> 32949 B 10-50 S ND ND ND ND ND 105 <br />' 32950 B 10-60 S ND ND ND ND ND 104 <br /> 32951 B 1145 S 5 O,d ND ND 0 017 0 011 90 <br />' 32952 B 11-50 S ND ND ND ND ND 112 <br /> 32953 B 11-55 S ND,d ND 0 005 ND 0 014 107 <br /> Y 32954 M W 1-45 S 5 6,e ND ND 0 018 0 008 109 <br /> 1 32955 MW1-50 S ND ND ND ND ND 108 <br /> 32956 MW 1-55 S 5 5,g ND ND 0 006 ND 86 <br />' 32957 MW245 S 3 8,g ND ND ND ND 100 <br /> 32958 MW2-70 S ND ND ND ND ND 92 <br /> 32959 MW3-45 S ND ND ND ND ND 93 <br /> 32960 MW3-70 S ND ND ND ND ND 94 <br /> Detection Limit unless other- W 50 ug/L 05 05 05 05 <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,soli samples in mg/kg,and all TCLP extracts in mg(L <br /> #cluttered chromatogram,sample peak co-elutes with surrogate peak <br /> t + 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 sigmficant,b) heavier ggaasohne <br /> range compounds are sigiiiCcant(agcd gasoline?),c)h ter gasoline range compounds(the most mobile traction) <br /> are significant d) soline range compounds are significant no recognizable pattern,e) TPH pattern that does <br /> not appear to be derived from gasoluie (Stoddards solvent? ,flfl one fo a few isolated peaks present,g) strongly <br /> aged gasoline or diesel range compounds-are significant,h) lighter than water immiscible phase is present <br /> DHS Certification No 1644 f � Edward Hamilton,Lab Director <br />