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Sent 8y McCainpbell Analytical, Inc 1 925 798 4612, Feb-25-02 10 42AM, Page 3/4 <br /> 110 2nd Menue South 0M,Pachecu,CA 94553-5560 <br /> 4 McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Pax 925-798-1622 <br /> ht //www mecam bell com E-matt main�ymccampbelI cam <br /> IAdvanced GeoEnvironmental Client Project M Stockton Fire Station Date Sampled 02/18,2002 <br /> 837 Shaw Road Dare Received 02/18/2002 <br /> Stockton CA 95215 Client Contact Bill Llltle Date Extracted 02119-02/20/2002 <br /> Client P Q Date Analyzed 0219-02IM2002 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methpi tert-Butyl Ether* &BTEX* <br /> FPA rrethnds 5030,modified SUI 3 and 8020 or 602,California RWQCB(sr Hay Region)method ucriD(5030) <br /> Lab 1D Client 1D Matrix TPfi(g)- I ITBE SenLene 1 OIUCnL Ethyl Xylcncs % erg <br /> benzene 5Ragarrngaie <br /> 90620 Influent Air 120,b ND NO NO NO 42 105 <br /> 90621 Fffluont Air NO ND NO ND NO ND 100 <br /> E <br /> I I <br /> I <br /> Reporting I Im"unless Air 50 ug/L 5 0 0 5 U 5 0 5 EOO ut}iertitirse stated NDmeans not deter trci ahsiveS 1 U mglkg <br /> the reporting timtt <br /> I "water and vapor saniplus are reported to ug'L wipe samples to ugimpe soil and sludge samples in mg/kg and all TC LP and SPLP ertrzcts <br /> m ugr'L <br /> "cluttered chrornatogram Sample peak s oelutes with surrogate peak <br /> `The tollowing descnphuns of the TNI cluomatogram are cursory in natuia and wcarnpbeil 4nalyttcal is not icsponsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant b) heavier gasoline hinge compounds are srgniltt.atit(aged <br /> gaso111`10), c) ltgliler gasoline range compounds (thc must mobrlc iraatiun) arc stgnilicant (I) gasoline range Wripuunds. Ila%Ing broad <br /> chrornatographicpeaks are signtfioirnt,biologically altered gasoline( e)TPII pattern that does not appear to be derived(rent gasoline('�) 0 <br /> one tri a few isolated peaks present g)sirangly aged,gasoline or diesel range compounds arc signtlicant h)Itnhter than water rrnmrsLihle <br /> sheen is present i)ltyuid sample that cotiranis greater than—5 vol %Setiniicnt J)no recngn17able pattern <br />' DHS Certification No 1644 Edward Hamilton, Lab Director <br />