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I 10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> h llwww mccam bell corn E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Rain Water Car Wash Date Sampled OI/2S/02 <br /> ' 837 Shaw Road Date Received 01/29/02 <br /> Stockton, CA 95215 Client Contact Tun Cuellar Date Extracted 02/01-02/04/02 <br /> ' Client P O 4 Date Analyzed 02/01-02/04/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BTEX* <br /> ' EPA methods 5030,modified 8015 and 8020 or 602,Caltfomia RWQCB(SF Bay Region)method GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> ' 89173 influent W 14,000,a 33,000 1600 2900 430 1900 106 <br /> 89174 Effluent W ND ND ND ND ND ND 110 <br /> Y <br /> 89175 GAC-2 W ND ND ND ND ND ND 111 <br /> Reporting Limit unless <br /> W SOug1L 50 05 05 05 OS <br /> otherwise stated,ND _ <br /> ' —means oat detected above S 3 0 m 0 05 0 005 0 005 0 005 0 005 <br /> the reporting limitg <br /> water and vapor samples are reported in ugll wipe sarrp)ts in uWwipe coil ind sludge samples in mglkg and ill TC1 P and 4Pl P L tracts <br /> ' <br /> in ug/1 <br /> ciuMcmd chromatogram sample peak COLiUtL'S wrth surrogate peak <br /> Thi, tollownig dtsertptions of the. I-PH chromatogram are cursory In nature and McCampbcll Analytical is not rusponsiblt for their <br /> interpretation a) unmodified or weakly modified gasoline cs significant b) heaVlLr gasoltnu range, compounds arc srgnrficant(aged <br /> basolrne'7) e) lrghttl oasolrne range compounds (the. most mobilt lraebon) arc ognittcant d] gasoline range compounds having broad <br /> chromatographic peaks are significant biologically altLn d gasoltncn c) CFH pattern that docs not appear to be denved from gasoline(i) 0 <br /> one to a few isolated peaks present g)strongly aged gasolrnc, or dtesul range,compounds .ire significant h) hglttt7 than watcT rrarrneetitl� <br /> ` screen is pmsenr i)liquid ,ample that eomams greater than --) vol °_,c dimcnt,J)no recognizable pan-cm <br /> 4 — <br /> DHS Certification No 1644 E-dward flarrulton, Lab Du ector <br />