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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South #D7 Pacheco' CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> • Advanced GeoEnvironmental,Inc Client Project ID Arco Mini-Mart Date Sampled 01/28-01/29/97 <br /> 1803 West March Lane,Suite A Date Received 01/30/97 <br /> Stockton,CA 95207 Client Contact Bill Little Date Extracted 01130-02/03/97 <br /> Client P O Dale AnalJ2ed 01130-02104/97 <br /> Gasoline Range(CG-C12) Volatile Hydrocarbons as Gasoline*,�rrth liethJi tei f-Bit}i Ether* &BTEX* <br /> EPA methods�o30 modified 8015 and 8020 or 602 Callfornia RN%QCB(SF Bay Re ion)method GCFJD(5030) <br /> Lab ID Client ID Matrix TPH(g)} MTBE Benzene Toluene lEthylben- Xylenes % Rec <br /> zene Suirogate <br /> 73343 B l0 H 20 W 93,000'a I 5700 7100 14,000 2800 16 000 103 <br /> 73344 I B 10-30' S ND ND ND 10 008 NTD 0 016 103 <br /> 73345 I B 10-25' S ND 0.071 0 009 0 026 0 006 0 046 102 <br /> 73346 B7-20' S i ND 0 052 0 006 0 008 ND 0 029 99 <br /> 73347 137-25' S 1 2 a ND ND 0 Oi i 0 007 0 054 100 <br /> i <br /> 73348 BS-30' S \D N,D ND 0 007 ND I 0 013 100 <br /> 73349 B9-30' S ND 0 076 0 005 0 013 ND 0 018 99 <br /> �—] <br /> 73350 B 11-30' S ND 0 072 ND ISD ND ND 100 <br /> I <br /> I <br /> I <br /> i <br /> Repot ting Lima unless W i 50 ug/L 50 05 05 05 05 <br /> otheiv,ise stated,ND <br /> means not detected <br /> aboNe the reporting limit S f 10 mg/kg 005 0 005 0 005 0 005 0 005 <br /> *eater and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,and all TCLP extiacts in mg/L <br /> Y cluttered chromatogram,sample peak coelutes v;-ith surrogate peak <br /> + The followirig descriptions of the TPH chromato-grain are cursory in nature and McCainpbellAnalJtical is not <br /> responsible for their interpretation a) unmodified or NN,eaklytnodifed gasoline is sicnificant,b} lieal�er asoline <br /> range compounds are si nificant(aged gasoline)),c)lighter gasoline range compounds(tl�e most mobile action) <br /> are siriificant, d) �asoline range compounds having broad chromatographic peaks are significant,biologically <br /> altered gasoline?, eJ TPH pattern that does not appear to be derived'from gasoline (?), f) one to a few isolated <br /> peals present,g)stronglyaged gasoline or diesel range compounds are significant,li)lighter than water immiscible <br /> sheen is present,i) liquidd sample that contains greater than- 5 vol % sediment, ) no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />