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10/01/2002 10:40 2094673"' 13 AGE STOCKTONPAGE 03 <br /> FROM :Castle Aria 1 yt i ca l Lab FAX NO. :2093841507 Sep, 24 2002 05:08PM P3 <br /> 1 <br /> CASTLE A�ALYTICAL LABORATORY <br /> a=n nrnerttal Teat ng 5ervlCee 23 huttis Drive,Atwater, 95301 Phone: ( 38¢2620 <br /> Fax: (209)384-1607 <br /> CertHlcate$24a0 <br /> FShow <br /> Erl it nmontal,Inc- Client Prolett ID,Elb Four Sampled:09-18}02 <br /> NorthernCalifornia Reference NuMber.6072 Reaehred:WAM2 <br /> d Sample Description:Soft Extracted:09-'19-02 <br /> 952)5 Sample PreplAnaNsis Method.EPA 5030/8260Analyzed:09-23.02 <br /> llar ! Lab Numbars:5072-6$,7S,as,9S Reported:09-24-02 <br /> I <br /> GASOLINE A1301TIVES BY EPA METHQp 9260 01C Ms <br /> i <br /> ANALYTE REPORTING SAMPLE ID SAMPLE 10 SAMPLE ID SAMPLE Ifo <br /> LIMIT PP-6 PP-7 0-1,2,3 C•4,3,6 <br /> Composite Composite <br /> rIt rK m !k m (mg/k m k <br /> AML <br /> 9enzene CA10 NO ND NO NO <br /> i <br /> Toluene 0.010 ND ND ND NO <br /> Ethyl BenxanA i 0.010 ND NO ND NO <br /> Total Xylenes 1 0.010 ND NO <br /> 0,30 NO <br /> i <br /> FUEL 0XY(3QI9S. <br /> Mathyl tett-Butyl Ether(MTBE) 0.010 NO ND ND NO <br /> Dl-19opropyl Ether I(Dlt'E) 01010 ND NO ND ND <br /> Ethyl tort-Butyl Elh (ETRE) 0.010 ND NO ND NO <br /> tart-Amyt Methyl Eihor(TAME) 0.010 NO ND ND NO <br /> tart-Butanol(TLA)? 0,500 ND ND ND ND <br /> Report Limit Mulfl�lcailon Factor 1 1 10" 1 <br /> i <br /> 'Increased raporrR g nmlt due to maty interfarehoos. <br /> i <br /> Surrogats Recov4rles <br /> 1,2-plchlaraether d4 72,9% 79.6% 97.0% 75.0% <br /> Totuane{t8 1 90.3% 93.1% 90.0% 68.6% <br /> Instrument 1D:HP 5972MS <br /> Analytes reported*s NO were not detected or Wow the Practical quAreallon UMA. <br /> Practical Quantltat�On Limit=Raportl t x port Land Mulllplication Factor <br /> mg/l(g = mIIIIQ er 0gfam parts s Tion(ppm) <br /> ANALYST: I APPROVED B'Y: (7�4��� <br /> Clori no .la h1'wpa <br /> oretury Dlreolor <br />