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110 Second Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Telephone 510-798-1620 Fax 510-798-1622 <br /> htrp I/www mccampbell corn E-mail mainCmccampbell corn <br /> Advanced GeoEnvironmental Client Project ID Cherokee Truck Stop Date Sampled 09118-09122/97 <br /> 1803 West March Lane, Ste A Date Received 09/23/97 <br /> Stockton,CA 95207 Client Contact Kevin McKibben Date Extracted 09123-09/24/97 <br /> Client P O Date Analyzed 09123-09129197 <br /> Gasoline Range (C6-C12)Volatile Hydrocarbons as Gasoline* tN ith Meth.I tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Reco,.cry <br /> zene Surrogate <br /> 81029 P-1 S 340,8,) ND<O 4 ND<O 02 0 10 072 2 1 99 <br /> 81030 P-2 S 6 6,g ND 0 006 0 006 ND 0 015 101 <br /> 81031 P-3 S 420,a,g ND<2 6 23 ND<O 04 1 1 1 8 104 <br /> 81032 P-4 S 1000,a ND<6 8 l8 2 3 25 60 I 102 <br /> 81033 P-5 S 35,a 1 4 4 7 0 10 2 2 023 I 100 <br /> 81034 P-6 S 6 8,a ND<O 16 0 1 1 0 023 I 0 017 006S k 103 <br /> 81035 P-7 S 250,a,g ND<1 7 096 090 0 57 1 1 f 103 <br /> 81036 P-8 S 1 9,a 0 11 0 008 0 044 0 010 0 051 {� 98 <br /> 81037 P-9 S 130,gd ND<O 10 0 026 0 048 `D 029 I 97 <br /> S1038 P-10 S 340,8:} ND<O 40 0 14 0 23 4 1 6 8 I 101 <br /> 81039 P-1 1 S 520,gd ND<O 5 027 035 049 2 1 t 99 <br /> 81040 P-12 S 4 8,g ND ND I N D 0 006 0 027 103 <br /> S1041 P-13 S 1200,8 ND<2 0 ND<O 21 1 1 2 2 8 6 96 <br /> 81042 TI-E S 1200,a ND<4 4 4 5 2 2 14 32 I 102 <br /> Reporting Limit unless W 50 uOiL 5 0 0 5 0 5 05 05 <br /> otherwise stated,ND <br /> means not detected <br /> above the reporting S 1 0 mg/kg 005 0 003 0 005 0 005 0 005 <br /> limit <br /> *water and vapor samples are reported in ug/L,wipe samples in ug/wipe soil and aiudge samples in m_Ag,and all TCLP and SPL?extracts <br /> in ug/L <br /> `cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McCampbeil Analvucal is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant h) hea%ier gasoline range compounds are significant(aged <br /> gasoline"), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline ranee compounds having broad <br /> chromatographic peals are significant,biologically altered gasoline',e)TPH pattern that does not appear to be derived from gasoline(') f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are si^_mficant h)lighter than water immiscible <br /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment ,1)no recognizable pattern <br /> DHS Certification No I644 /�� Edward Hamilton, Lab Director <br />