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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 /> The Mark Group Client Project ID #92-1177103, Stockton Date Sampled 02/01/95 <br /> Hookston Square,# 120 Scavenger <br /> Date Received 02/02/95 <br /> 3480 Buskirk Avenue Client Contact Jeff Fiedler Date Extracted 02103-02/04/95 <br /> Pleasant Hill,CA 94523 Client P O Date Analyzed 02/03-02/04/95 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> ' EPA methods 5030,modified 8015,and 8020 or 602,California RW CB SF Ba Rc on method GCFID 5030 <br /> Lab ID Client ID Matrix T'PH(g)} Benzene Toluene Et yynen Xylenes Surrogate% a <br /> e <br /> ! 50063 MW4 W ND ND ND ND ND 97 <br /> 50064 MW-3 W 51,c 16 15 055 093 102 <br /> ' 50065 MW-1 W ND ND ND ND ND 101 <br /> ' 50066 MW-2 W 4600,b,c 730 97 43 57 103 <br /> ! J <br /> N I <br /> Detection Limit unless other- W 50 ug/L 0 5 0 5 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-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 siccant,b) heavier gasohne <br /> range compounds are significant(age�gasoline?),c)h ter gasoline range compounds(the most mobile fraction) <br /> are significant d}gasolme range compounds are silg ant,no recognizable pattern e)TPH pattern that does <br /> not appear to be derived from gasoline 2) one o a few isolated peaks present,gj strongly aged gasoline or <br /> . diesel range compounds are significant, ) than water immiscible phase is present <br />! DHS Certification No 1644 �3` Edward Hamilton,Lab Director <br />