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110 2nd AVLnuL South, #D7, PachLCO,CA 94553 <br /> McCAMPBELL ANALYTICAL INC TL1L 510-798-1620 Fix 510-798-1622 <br /> Geological Audit Services Client Project ID Mid-Cal Leasing 11 !Date Sampled 09/07/9.1 - <br /> 1803 West March Lane,Ste A Date Received 09/07/94 <br />' Stockton, CA 95207 Client Contact Bob Marty Date E%Iracted 09/08/94 <br /> Client P O Date Anahzed 09/08/94 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> EPA methods 5030,modified—15,and 8020 or 602 California RR' CB 5F Ba Regton method GCFID 5030 <br /> Lab ID FClient ID Matrix TPH(g)* i Eftlben- % Rec <br />' Benzene Toluene zene X}lents Surrogate <br /> 40794 MW-1 /9-7-94 W ND ND ND ND ND 109 <br /> 40795 MW-2/9-7-94 W i ND ND ND ND � ND I 108 <br /> 40796 - M W-3/9-7-94 W - I ND ND ND ND ND 109 <br /> I i <br /> ih 1 <br /> i I <br /> i� <br /> Detection Limit unless other- W 50 ug/L 05 05 05 05 <br /> wise stated,ND means Not i <br /> Detected S 10 mg(kg 0005 0 005 0 0057 0 005 <br /> *tater samples are reported in ug/L,soil samples in mg/kg,and all TCLP euracts m 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«eakly modified gasoline is sig ificant,b) heavier gasoline <br /> range compounds are signtficant(aged gasoline?),c)li, ter gasoline range compounds(the most mobile fraction) <br /> are significant d) ggaasolme range compounds are sire icantt,no recognizable pattern e) TPH pattern that does <br /> nat appear to be derived from gasoline 0 }� one fo a few isolated peaks present, g'1 strongly aged gasoline or <br /> diesel range compounds are significant, ) �ig}iter than u°ater immisciible phase is present <br /> DHS Certification No 1644 �f� Eduard Hamilton,Lab Director <br />