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1 [ V 1 <br /> 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 1D Chase-Van Buren Date Sampled 05/07/97 <br /> 1803 West March Lane, Suite A Date Received 05/08/97 <br /> Stockton,CA 95207 Client Contact Kevin McKibben Date Extracted 05/11-05/13/97 <br /> Client P O Date Analyzed 05/11-05/13/97 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,«nth Methyl tert-But}i Ether*&BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602 California RW C9 SF Bal Regionj method GCFI D(503 <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes % Rec <br /> zene Surrogate <br /> 76246 MW-3 W 190,OOO,a ND< 100 15,000 51,000 3900 22,000 101 <br /> 76247 MW-6 W 1200,a ND 88 12 110 130 90 <br /> 76248 MW-7 W 4500,a ND 130 25 190 450 90 <br /> 76249 MW-9 W 35,OOO,a 85 690 2400 2400 7200 89 <br /> 76250 MW-10 W I`rD ND ND ND ND ND 91 <br /> 76251 MW-14 W ND ND ND ND ND ND 91 <br /> 76252 MW-15 W ND ND ND ND ND ND 90 <br /> 76253 MW-16 W ND ND NTD ND ND ND 94 <br /> 76254 MW-17 W ND ND ND ND ND ND 93 <br /> i <br /> Reporting Limit unless W 50 ug/L 50 05 05 0 5 05 <br /> otherwise stated,ND <br /> means not detected <br /> above the reporting limit S 10 mg/kg 005 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram,sample peak coelutes 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 weakly modified gasoline is significant,b) heavier asolme <br /> range compounds are significant(aged gasoline?),c)lighter gasoline range compounds(the most mobile fraction) <br /> are sigriificant, d) asolilme range compounds having broad chromatographic peaks are significant, biollogically <br /> altered gasoline9, e� TPH pattern thaf does not appear to be derived from gasoline (9),f) one to a few isolated <br /> peaks present,g)strong aged gasohne or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen is present,i) liquidd sample that contains greater than— 5 vol % sediment,j) no recognizable pattern <br /> DHS Certification No 1644 T f/� Edward Hamilton,Lab Director <br />