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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> . McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> httn//www mccamabell com E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Protect ID Gardino&Crawford Date Sampled 07/29/99 <br /> 4005 North Wilson Way (G&C) Date Received 07/30/99 <br /> Stockton,CA 95205 Client Contact Bill Little Date Extracted 08/01-08/02/99 <br /> Client P O Date Analyzed 08101-08102/99 <br /> Gasoline Range(C6-02)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether*& BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RW CB SF Bav Re ton)method GCFID(5030 <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 16336 MW-4 W ND ND ND 061 ND 057 104 <br /> 16337 MW-3 W ND ND 0 72 2 3 0 70 2 9 106 <br /> 16338 MW-2 W 2900 a ND<30 240 14 130 540 103 <br /> 16339 1AW-1 W 56,000 a ND<390 6800 9600 780 9000 98 <br /> Repotting Limit unless W 50 ug/L 50 05 0 5 05 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the repotting limit S 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> 'water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> `cluttered chromatogram sample peal,coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursor) in nature and McCampbell Analytical is not responsible for their <br /> • interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasoline"), c) lighter gasoline range compounds (the most mobile fraction) are significant d) gasoline range compounds having broad <br /> chromatographic peals are significant biologically altered gasolme9,e)TPH 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 range compounds are significant h) lighter than water immiscible <br /> sheen is present,i)liquid sample that contains Eeater than—5 vol %sediment i)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />