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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,Sari Joaquin County/791290(Ground Water) Date Collected: 01/10/2007 <br /> Sample Matrix: Water Date Received: 01/1.1/2007 <br /> Volatile Organic Compounds <br /> Sample Name: MW2 Units: ug/L <br /> Lab Code: P0700023-002 Basis: NA <br /> Extraction Method: METHOD Level: Low <br /> Analysis Method: 624M <br /> Analyte Name Result Q PQL <br /> Dilution Date Date Extraction <br /> 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 98 69-120 01/18/07 Acceptable <br /> Toluene-d8 103 84-115 01/18/07 Acceptable <br /> t Analyte Comments <br /> 1,1,2-Tric1loroh1fluoroethane 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 /> i <br /> Printed: 01/19/2007 11:28:18 Form 1 A-Organic Page 2 of 2 <br /> P:\STEALTH\CRYSTAL.RPT\FomitLn.rpt Merged <br /> Superset Reference: RR13316 <br />