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pace, <br /> REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF QUALITY <br /> Mr. Bill Howell QUALITY CONTROL DATA May 24, 1994 <br /> age 13 PACE Project Number: 440513502 <br /> .i <br /> Client Reference: BP Site #11195 <br /> HALOGENATED VOLATILE ORGANICS 8010/8020 <br /> Batch: 70 30591 <br /> Samples: 70 0320810 <br /> METHOD BLANK: <br /> Method <br /> Parameter Units MDL Blank <br /> Bromo5enzene ug/L 0.5 ND <br /> 1,3-Dichlorobenzene ug/L 0.5 ND <br /> 1 ,4-Dichlorobenzene ug/L 0.5 ND <br /> Benzyl Chloride ug/L 0.5 ND <br /> 1,2-Dichlorobenzene ug/L 0.5 ND <br /> Bromochloromethane (Surrogate Recovery) % 101 <br /> 1 ,4-Dichlorobutane (Surrogate Recovery) % 116 <br /> VOLATILE AROMATICS BY EPA 8020 - <br /> Benzene ug/L 0.3 ND <br /> Toluene ug/L 0.3 ND <br /> Chlorobenzene ug/L 0.5 ND <br /> Ethylbenzene ug/L 0.5 ND <br /> E> := Xylenes, Total ug/L 0.5 ND <br /> 1,3-Dichlorobenzene ug/L 0.5 ND <br /> 1,4-Dichlorobenzene ug/L 0.5 ND <br /> 1,2-Dichlorobenzene ug/L 0.5 ND <br /> a,a,a-Trifluorotoluene (Surro. Recovery % 94 <br /> SPIKE AND SPIKE DUPLICATE: <br /> Spike <br /> Spike Dupl <br /> Parameter Units MDL 700320356 Spike Recv Recv RPD <br /> 1,11,1�oroethane ug/L 0.5 ND 20 1150/. 916A 23% <br /> Trichloroethene (TCE) ug/L 0.5 ND 20 99% 98% 1% <br /> 1,1,2-Trichloroethane ug/L 0.5 ND 20_ 106% 102% 4% <br /> Tetrachloroethene ug/L 0.5 ND 20 107% 106% 1% <br /> Benzene ug/L 0.3 1 .6 20 103% 102% 1% <br /> Toluene ug/L 0.3 0.8 20 98% 98% 0% <br /> Xylenes, Total ug/L 0.5 1 .9 60 106% 104% 2% <br /> 11 Digital Drive An Equal Opportunity Employer <br /> Novato, CA 94949 <br /> TEL: 415-663-6100 <br /> FAX: 415-6632673 <br />