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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 /> 24 littp/hvww mccampbell com E-mail matn@mccampbell corn <br /> Advanced GeoEnvironrnental Client Project ID Curtiss Tracy Pontiac Date Sampled 06/24/97 <br /> I1803 West March Lane, Ste A Date Received 06/26/97 <br /> Stockton,CA 95207 Client Contact Bill Little Date Extracted 06/27-07101197 <br /> I <br /> [LICE" <br /> O Date Analyzed 06127-07/01197 <br /> Gasoline Range(C6-C12)Volatile Hydrocai bons as Gasoline*,iiith MethiI tert-Butyl Ether* &BTEX* <br /> I EPA methods 5030,modified 8015,and 8020 or 602 Cahfomia RWQCB(Sl-Bay Region)method GCFID(�030) <br /> Lab 1D Client 1D Matrix TPH(g)+ NITBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> I 78008 135-6 S 5000,a 14 46 260 100 480 103 <br /> 78009 B5-8 S 1800,b,d 64 14 86 36 170 99 <br /> 78010 B5-12 S ND 1�D 0 014 0 047 0 01 1 0 047 99 <br /> 78011 B6-8 S ND ND ND ND 0 007 0 024 97 <br /> I78086 B2-16 S ND ND ND ND ND ND 81 <br /> i• <br /> i <br /> I <br /> I <br /> I <br /> Reporting Limit unless W 50 ug/L 5 0 05 05 05 05 <br /> i othet wise stated,ND <br /> means not detected above S 10 mg/k <br /> the reporting limit g 005 (1005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,wipe samples in uglnipe soil and sludge samples in ing/6g and all TC LP and SPLP extracts <br /> in ug/L. <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> I *The following descriptions of the TPH chromatogram are cuisoiy isi nature and Mc('aimpbell Analytical is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is siansficant, b) heavier gasohne range compounds are significant(aged <br /> gasolinel), c) lighter gasoline range compounds (the most mobile inaction) aie significan(, d) gasoline range compounds having broad <br /> Chromatographic peals are significant,biologically altered gasoline? e) rpli pattern that does not appear to be derived from gasoline(9), f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel iange compounds are significant h)lighter than water immiscible <br /> sheen is present i)liquid sample that contains greater than—5,,ol %sediment j)no iecognizable pattern <br /> DHS Certification No 1644 �,�� Edward Hamilton, Lab Director <br /> i <br />