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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 httl2 llw%yw mccampbell coin E-mail main@mccampbell com <br />' Advanced GeoEnvironmental Client Project ID #95-0111,Grant Lite Date Sampled 06/13/97 <br /> 1803 West March Lane, Ste A Gas &Food Date Received 06/17/97 <br />' Stockton, CA 95207 Client Contact Wilhain Little Date Extracted 06117-06119/97 <br /> Client P O Date Analyzed 06117-06/19/97 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*, «ith AlethN l tet t-Butt 1 Ether* & BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Ba} Region)method GCF1D(.a030) <br />' Lab 1D Client 1D Matrix TPH(g)T MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 77636 MW-1 W 290,a 84 S2 ND 20 8 5 100 <br /> 77637 MW-2 W ND TSD 15 ND 15 15 100 <br /> 77638 MW-3 W ND \D ND ND ND ND 100 <br />' 77639 MW-4 W ND 30 l4 ND ND ND 100 <br /> 77640 MW-5 W t40,b,1,h 13 1 0 ND 054 ND 101 <br />' 77641 MW-6 W ND ND ND ND ND ND 98 <br /> lie <br /> 1 <br />' Reporting Limit unless W 50 ug/L 5 0 05 05 0 5 05 <br /> otherwise stated ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br />' <br /> *water and vapor samples are reported in ug/L,wipe samples in u,hs ipe soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ig/L V <br />' "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are curaoiy is nature and McCanipbell Analytical is not responsible for their <br />' interpretation a) unmodified or weakly modified gasoline is significant b) h�a%ier gasoline range compounds are significant(aged <br /> gasoline's), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant biologically altered gasoline" e)TPH pattern Shat does not appear to be derived from gasoline(9) 0 <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 greater than—5 vol %sediment,j)no recognizable pattens <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />