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I <br /> I • California Geophysical Group &M@n laboratories <br /> P 0 Box 578341 TPH-g!BTX&E I OXYGENATES Date Sampled 10/08/05 <br /> Modesto,CA 95357 Date Received 10/10/05 <br /> Method 8015M/8021B/8260B <br /> Pro) ID Beneto#8 <br /> Site 749 East Charter Way 1 Stockton,CA Matrix Water <br /> Lab ID F10269 (d) F10270 (d) F10271 F10272 <br /> Sample 1D MW-9 MW-10 MW-11 MW-12 <br /> Units ug/L ug/L ug/L uglL <br /> Method 8015M!80218 Date Anal ed 10113/05 <br /> Total Petroleum Hydrocarbons 4,600 710 <50 <50 <br /> @ Gasoline <br /> Benzene 1,700 170 <0 5 <0 5 <br /> Toluene 12 24 <0 5 <0 5 <br /> Xylenes 24 4 8 <10 <10 <br /> Ethyl Benzene 7 5 <05 <0 5 <0 5 <br /> Surrogate Spike Recovery 109% 98% 97% 107% <br /> IMethod 82606 Date Anal zed 10113/05 <br /> t-Butanol (TBA) <200 <20 40 <50 <br /> Methyl-t-Butyl Ether(MTBE) 28 <2 0 17 <0 5 <br /> Di-Isopropyl Ether(DIPE) <20 <2 0 <0 5 <0 5 <br /> Ethyl-t-Butyl Ether(ETRE) <20 <2 0 <0 5 <05 <br /> I t-Amyl Methyl Ether(TAME) <20 <20 <0 5 <0 5 <br /> 1,2-Dichloroethane(1,2-DCA) <20 <2 0 7 8 <0 5 <br /> 1,2-Dibromoethane(EDB) <20 <2 0 <0 5 <0 5 <br /> Surrogate Spike Recovery 96% 92% 91% 98% <br /> Note(s) <br /> (d) Sample diluted due to high concentration of target analytes and/or high organic content. <br /> Water samples are reported in ug1L,soiUsludge samples in mg/Kg,productloil/non-aqueous liquid samples in mg1L <br /> ND means not detected at or above the stated reporting limit;NIA means analyte not applicable to this analysis <br /> I <br /> Hiram Cueto <br /> Lab Director <br /> DHS Certification No 2359 <br /> i <br /> I <br /> 2905 Railroad Avenue Ceres, CA 95307 • Phone (209) 581 -9280 • Fax (209) 581-9282 <br /> email infofti-gonlobs corn <br />