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Pace <br /> C O F F Q T a REPORT OF LABORATORY ANALYSIS <br /> .ssuastic< < <br /> iMs Laura Odenthal QUALITY CONTROL DATA April 26, 1993 <br /> Page 14 PACE Project Number- 430412507 <br /> Client Reference 14800 W Frontage, Manteca/83Z-159 <br /> HALOGENATED VOLATILE COMPOUNDS EPA 8010 <br /> Batch 70 20481 <br /> Samples 70 0047463, 70 0047471 , 70 0047480, 70 0047498, 70 0047501 <br /> 70 0047552 <br /> METHOD BLANK <br /> Method <br /> Parameter Units MDL Blank <br /> 1 ,41 ,4-Di orobutane (Surrogate Recovery) _ 88 % <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> l, l-Dich oroethane ug/L 0 5 10 00 78% 85% N <br /> Trichloroethene (TCE) ug/L 0 5 10 00 97% 100% 3% <br /> 1 , 1 ,2-Trichloroethane ug/L 0 5 10 00 94% 96% 2% <br /> Tetrachloroethene ug/L 0 5 10 00 108% 111% 2% <br /> • <br /> 11 Dgital Drive An Equal Opportunity Employer <br /> Novato GA 94949 <br /> TEL 415 883 6100 <br /> FAX 415 883 2673 <br />