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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> Tuesday,March 29, 2005 <br /> Attention: Jack Bishop <br /> California Tank Lines Report Page 6of21 <br /> P 0 Box 6245 <br /> Stockton, CA 95206 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sample Information <br /> Sample ID: MW-2 Sample Type- Grab <br /> Laboratory ID. 5031206-02 Project Name: QM Q1 2005 <br /> Date/Time Sampled, 11-Mar-05 15 00 by Sorenson Sample Alairrx: Ground Water-Non Potable <br /> f <br /> est a er Result DLR Unit Dilution batch Prepared Analysis Date Method Nates <br /> Acetone NO 500 ug/1 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260B <br /> to I Acohol(TBA) NO 500 ugll 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260B <br /> Methyl tent-butyl Ether(MtBE) 0 660 0 500 ug/1 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260B <br /> Dnsopropyl Ether(DIPS) 431 - 0 500 ug/1 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260B <br /> Ethyl tert-Butyl Ether(ETRE) NO - 0 500 ugll 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260E <br /> tert-Amyl Methyi Ether(TAME) NO - 0 500 ug11 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260B <br /> 1,2-Dibromoethane(EDB) NO o, 0 500 Ug/1 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260B <br /> 1,2-Dichloroethane NO 0-500 ug/1 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260B <br /> nzene 279 - 0 500 ug/11 AC51507 15-Mar-05 16-Mar-05 EPA 8260B <br /> (benzene 188 l 0 500 ug/1 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260E <br /> oluene 4 55 0 500 ug/1 1 AC51507 15-Mar-05 16-Mar-05 EPA 82608 <br /> m,p-Xylene 648 0 500 ug/1 1 AC51507 15-Mar-05 16-Mar-05 EPA 82608 <br /> o-Xylene 798 _ 0 500 ug/1 1 AC51507 15-Mar-05 16-Mar-05 EPA 8260B <br /> Surrogate Toluene-d8 97% 70-125 <br /> Surrogate Dtbromofluoromethane 95% 70-125 <br /> 1 Surrogate 4-Bromofluorobenzene 108% 70-125 <br /> 1 <br /> 1 <br /> r <br /> mg1L=milligrams per Liter=ppm DLR=Detection Limit for Purpose of Reporting <br /> eg/L—micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result to higher detection limits�PECTFULLY SUBMIT'T'ED, <br /> Jonathan Le,Laboratory Director <br /> 7743 N West Lane Suite B2 Stockton CA 95210 phone (209) 477-8105 Fax (209) 477-8148 <br />