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Superior PreC%S%Ori �4ria/ytica/, inc <br /> 1555 Burke, Unit I ■ San Francisco California 94124 • 14 15) 647-2081 /fax (4 15) 821-7123 <br /> EPA SW-846 METHOD 8240 - VOLATZLE OR -AKi(S'- " x -- <br /> Quality <br /> _Quality Assurance and Control Data -- Water <br /> Laboratory Number 90150 <br /> Average <br /> Method Spike <br /> Compound Blank RL Recovery Limits RPD <br /> (ug/L) (ug/L) ($) M (�} <br /> Tetrachloroethene: ND<3 3 <br /> 1, 1, 2,2-Tetracl-ethane: ND<3 3 <br /> Toluene: ND<3 3 88% 76-125 3% <br /> Chlorobenzene: ND<3 3 93% 75-130 3-% <br /> Ethyl Benzene: ND<3 3 <br /> Styrene: ND<3 3 <br /> Xylenes: ND<3 3 <br /> 1, 3-Dichlorobenzene: ND<3 3 <br /> 1, 4-Dichlorobenzene: ND<3 3 <br /> 1, 2-Dichlorobenzene: ND<3 3 <br /> 1, 2-Dichloroethane-d4 : 97% 76-114 <br /> Ooluene-d8: 101% 88-110 <br /> mofluorobenzene: 98% 86-115 <br /> Definitions: <br /> ND = Not Detected r7 <br /> RPD = Relative Percent Difference &aa: �V <br /> Reporting Limit <br /> L = Parts per billion (ppb) Senior cbbmj#t <br /> File No. 90150 Account Manager <br /> Page 5 of 5 <br /> Certified Laboratories <br />