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. Pncee <br /> C D F P REPORT OF LABORATORY ANALYSIS <br /> of w THE ASSURANCE OF QUALITY <br /> Ms. Laura Odenthal QUALITY CONTROL DATA July 23, 1993 <br /> 0 g 19 PACE Project Number: 430709533 <br /> Client Reference- 14800 W Frontage, Manteca/837-159 <br /> VOLATILE HALOCARBONS AND AROMATICS <br /> Batch 70 22922 <br /> Samples 70 0110343, 70 0110351, 70 0110378, 70 0110386 <br /> METHOD BLANK <br /> Method <br /> Parameter Units MDL Blank <br /> 1,4-Dic orobutane (Surrogate Recovery) 82% <br /> VOLATILE AROMATICS BY EPA 8020 - <br /> Benzene ug/L 0 3 ND <br /> Toluene ug/L 0 3 ND <br /> Ethylbenzene ug/L 0 5 ND <br /> Xylenes, Total ug/L 0 5 ND <br /> Fluorobenzene (Surrogate Recovery) 100% <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> p1-Dichloroethane ug/L 0 5 20.00 71% 74% 4% <br /> ichloroethene (TCE) ug/L 0 5 20 00 80% 84% 4% <br /> 1, 1,2-Trichloroethane ug/L 0 5 20 00 87% 87% 0% <br /> Tetrachloroethene ug/L 0 5 20 00 78% 79% 1% <br /> Benzene ug/L 0 3 20 00 99% 97% 2% <br /> Toluene ug/L 0 3 20 00 82% 84% 2% <br /> Xylenes, Total ug/L 0 5 60 00 83% 863 3% <br /> 11 Digital Drive An Equal Opportunity Employer <br /> Novato CA 94949 <br /> TEL 415 803 6100 <br /> FAX 415 883 2673 <br />