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1 <br /> EXCEL.CHEM <br /> ENVIRONMENTAL LABS <br /> 1 500 Giuseppe Court, Suite 9 <br /> Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> ' <br /> OA/()C REPORT <br /> Attention Mr Eric Case Date Analyzed 11-22-96 <br /> ' Sierra Pacific Groundwater Consultants, Inc Matrix Water <br /> 4911 Windplay Dr, Suite 4 <br /> El Dorado Hills, CA 95762 <br /> ' Project 96-620/CTL <br /> Matrix Spike Matrix Spike Duplicate <br /> Compound _ _ % Recovery %Recovery <br /> 1,1-dichloroethene 90% 94% <br /> benzene 99% 105% <br /> trichloroethene 98% 105% <br />' toluene 96% 101% <br /> chlorobenzene 100% 102% <br /> ppb=Parts per billion=ug/L=micrograms per liter <br />' ND=Not detected Compound(s)may be pre! .nt at con"iitr4tlom betom the reporting Ilmlt <br /> ANALYTICAL PROCEDURES <br />' MTBE-- Methyl tert-Butyl Ether is measured using EPA Method 8260 which utilizes a purge and trap mtertaced to a gas chromatograph (GC) <br /> equipped with a mass spectrometer <br /> 4 .— -A".— 11_27_96 <br /> a oratory Representative Date Reported <br /> 1 <br />' E\CELCHEht ENVIRC'\\1EN7AL LAPS IS CERTIFIED B)THE5TATE OF CALIFORNIA <br /> DEPARTMENT OI•I IEALTH SEk V1065 AS A HALARDOUS WASTE TESTING LABORATORY <br /> Wertlf,—L—N. 1 760) <br />