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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: 01/10/2007 <br /> Sample Matrix: Water Date Received: 01/11/2007 <br /> Volatile Organic Compounds <br /> Sample Name: MW1 Units: ug/L <br /> Lab Code: P0700023-001 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 7WG0700142 <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 112 75-124 01/18/07 Acceptable <br /> 4-Bromofluorobenzene 100 69-120 01/18/07 Acceptable <br /> Toluene-d8 105 84-115 01/18/07 Acceptable <br /> t Analyte Comments <br /> 1,1,2-Tiichlorotrifluoroethane This analyte is not listed in EPA Method 624 <br /> cis-1,2-Dichloroethene 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 /> Printed: 01/19/2007 11:28:14 Form IA-Organic Page 2 of 2 <br /> P:\STEALTH\CRYSTAI...RPT\Fomilm.rpt Merged SuperSetReference: RR13316 <br />