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MATRIX ENVIRONMENTAL LABORATORIES <br /> ANALYSIS. volatile Organic Analytes EPA Method 624 <br /> CLIENT W GEO <br /> CONTACT G CONVERSE Date Sampled N/A <br /> COC No 3649 Date Received 12/2/92 <br /> Project No Date Extracted N/A <br /> Sample ID N/A Date of Analysis 12/09/92 <br /> Lab ID METHOD BLANK Matrix WATER <br /> He L0901.D <br /> ANALYTES CONCENTRATION REPORTING <br /> ug/L(ppb) LIMIT(ppb) <br /> tetrachloroethene ND 10 <br /> toluene ND 5 <br /> total xylenes ND 15 <br /> trans-l,2-dzchloroethene ND 5 <br /> trans-1,3-dichloropropene ND 5 <br /> trichloroethene ND 5 <br /> tnchloro£luoromethane ND 10 <br /> vinyl acetate ND 5 <br /> vinyl chlonde ND 10 <br /> SURROGATE RECOVERY <br /> Surrogate Amount Spike °/oRecov <br /> (ppb) (ppb) <br /> 1,2-dichloroethane-d-4 451 500 902 <br /> toluene-d8 497 500 993 <br /> 4-bromofluorobenzene 496 500 99 1 <br /> Surrogate Recovery Range= 50 - 150 <br /> ND =Not Detected at, or Above the Report Linut <br /> page 2 <br /> 3017 KILGORE ROAD# 100 • RANCHO CORDOVA, CA 95742 PHONE (916) 635-3962 • FAX (916)635-9331 <br />