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COLUMBIA ANALYTICAL SERVICES,INC. <br /> Analytical Results <br /> Client: Shaw Environmental&Infrastructure,Inc Service Request: P0700023 <br /> Project: Harney Lane Landfill,San Joaquin County/791290(Ground Water) Date Collected: NA <br /> Sample Matrix: Water Date Received: NA <br /> Volatile Organic Compounds <br /> Sample Name: Method Blank Units: ug/L <br /> Lab Code: PWG0700142-4 Basis: NA <br /> Extraction Method: METHOD Level: Low <br /> Analysis Method: 624M <br /> Dilution Date Date Extraction <br /> Analyte Name Result Q PQL MDL Factor Extracted Analyzed Lot Note <br /> Trichlorofluoromethane ND U 1.0 0.60 1 01/18/07 01/18/07 PWG0700142 <br /> Vinyl Chloride ND U 0.50 0.43 1 01/18/07 01/18/07 PWG0700142 <br /> Control Date <br /> Surrogate Name %Rec Limits Analyzed Note <br /> 1,2-Dichloroethane-d4 113 "75-124 01/18/07 Acceptable <br /> 4-Bromofluorobenzene 102 69-120 01/18/07 Acceptable <br /> Toluene-d8 104 84-115 01/18/07 Acceptable <br /> t Analyte Comments <br /> 1,1,2-Ttichlorotrifluoroethane This analyte is not listed in EPA Method 624 <br /> cis-1,2-Dichloroetliene This analyte is not listed in EPA Method 624 <br /> Dichlorodifluoromethane This analyte is not listed in EPA Method 624 <br /> Total Xylenes This analyte is not listed in EPA Method 624 <br /> Methyl tert-Butyl Ether This analyte is not listed in EPA Method 624 <br /> Comments: This method does not fall under the laboratory's NELAC certificate of approval. The method was modified(desorption time)to achieve the reporting limits. <br /> IL 0 <br /> Printed: 01/19/2007 11:28:39 Form I-Organic Page 2 of 2 <br /> P:\STEALTH\CRYSTAL.RPT�Fomlm.rpt Merged SuperSetReference: RR13316 <br />