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EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 <br /> Roseville, CA 95678 <br /> Phone#: (916) 773-3664 Fax#: (916) 773-4784 <br /> ANALYSIS REPORT <br /> Attention: Mr. Noel Lerner . Date Sampled : 08-26-97 <br /> Helmick&Lerner Inc. Date Received: 08-26-97 <br /> 1620 Executive Court Date Analyzed: 09-04-97 <br /> Sacramento, CA 95864 <br /> Project: 00815/Stockton Unified Matrix: Soil <br /> Sample ID: (839) S-1 <br /> Lab ID: 50897582 <br /> Reporting Measured Reporting Measured <br /> Limit Value Limit Value <br /> 8240 GCMS (mg/Kg) (mg/Kg) 8240 GCMS (mg/Kg) (mg/Kg) <br /> Dichlorodifluoromethane 0.12 ND Cis-1,3-Dichloropropene 0.12 ND <br /> Chloromethane 0.12 ND 1,1,2-Trichloroethane 0.12 ND <br /> Vinyl Chloride 0.12 ND Tetrachloroethene 0.12 ND <br /> Trans-1,3-Dichloropropene 0.12 ND Chlorobenzene 0.12 ND <br /> Chloroethane 0.12 ND 1,1,2,2-Tetrachloroethane 0.12 ND <br /> Trichlorofluoromethane 0.12 ND 1,3-Dichlorobenzene 0.12 ND <br /> 13-Dichloroethene 0.12 ND 1,2-Dichlorobenzene 0.12 ND <br /> Methylene Chloride 3.5 ND 1,1,1-Trichloroethane 0.12 ND <br /> Trans-l,2-Dichloroethene 0.12 ND Carbon Tetrachloride 0.12 ND <br /> 1.1-Dichloroethane 0.12 ND 1,4-Dichlorobenzene 0.12 ND <br /> Chloroform 0.12 ND Trichloroethene 0.12 ND <br /> 1,2-Dichloroethane 0.12 ND 1,2-Dichloropropane 0.12 ND <br /> Dibromochloromethane 0.12 ND <br /> ppm=Parts per million=mg(Kg=milligram per Kilogram <br /> ND=Not detected. Compound(s)may be present at concentrations below the reporting limit. <br /> Surrogate Recovery- 1,2-Dichloroethane d-4 = 106% <br /> Toluene d-8 = 104% <br /> 4-Bromofluorobenzene = 99% <br /> ANALYTICAL PROCEDURES <br /> Chlorinated Hydrocarbons are measured using EPA Method 8240 which utilizes a purge and trap interfaced to a gas chromatograph(GC)equipped <br /> with a mass spectrometer. <br /> 09-08-97 <br /> Lab ratory R Sentative Date Reported <br /> EXCELCHEM ENVIRONMENTAL LABS 5 CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification Na 2119) <br /> 4 <br />