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G) (40885 Jarvis Drive <br /> Sequoia Morgan Hill,CA 95037 <br /> Analytical <br /> it <br /> 8)700 <br /> FAX(408)7882-632-6308 <br /> www,sequoialabs.com <br /> i <br /> Secor-Rancho Cordova(ARCO) Project:ARCO#2133, Stockton,CA ME <br /> 3017 Kilgore Rd. Suite 100 Project Ntunher:77BP.52133.06.0002 Rancho Cordova CA,95670 Project Manager:Brian Carey 04/18 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Note <br /> E-6(MPC0947-05)Water Sampled:03/22/06 18:09 Received:03/24/06 08:20 <br /> tert-Amyl methyl ether ND 0.50 ug,9 1 6DO5004 04/05/06 04/05/06 EPA 82608 <br /> Benzene ND 0.50 " <br /> tert-Butyl alcohol ND 20 " <br /> Di-isopropyl ether ND 0.50 " <br /> 1,2-Dibromoethane(EDB) ND 0.50 " <br /> 1,2-Dichloroethane ND 0.50 " <br /> Ethanol ND 300 " <br /> Ethyl tert-butyl ether ND 0.50 <br /> Ethylbenzene ND 0.50 " <br /> Methyl tert-butyl ether ND 0.50 " <br /> Toluene ND 0.50 " <br /> Xylenes(total) ND 0.50 <br /> Gasoline Range Organics(C4-C12) ND 50 " <br /> arrogate: 1,2-Dichloroethane-d4 105% 80-135 <br /> rrogate: Toluene-d8 92% 70-130 <br /> Surrogate:Dibromofluoromethane 99% 85-136 <br /> Surrogate:4-Bromofluorobenzene 93% 60-115 <br /> E-7(MPC0947-06)Water Sampled:03/20/06 11:15 Received:03/24/0608:20 <br /> tert-Amyl methyl ether ND 0.50 ugll 1 6DO3001 04/03/06 04/03/06 EPA 8260E <br /> Benzene ND 0.50 " <br /> tert-Butyl alcohol ND 20 " <br /> Di-isopropyl ether ND 0.50 " <br /> 1,2-Dibromoethane(EDB) ND 0.50 " <br /> 1,2-Dichloroethane ND 0.50 <br /> Ethanol ND 300 PE <br /> Ethyl tert-butyl ether ND 0,50 " <br /> Ethylbenzene ND 0.50 " <br /> Methyl tert-butyl ether ND 0.50 " <br /> Toluene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Gasoline Range Organics(C4-C12) ND 50 " <br /> Surrogate: 1,2-Dichloroethane-d4 110% 80-135 <br /> Surrogate: Toluene-d8 98% 70-130 " <br /> Surrogate:Dibromofluoromethane 104% 85-130 " or <br /> Surrogate: 4-Bromoflucrobenzene 85% 60-115 <br /> equoia Analytical- Morgan Hill The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. Unless otherwise stated,results are reported on a wet weight basis. <br /> This analytical report must be reproduced in its entirety. <br /> Page 5of19 <br />