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110 2nd Ave. South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1520 Fax :925-798-1622 <br /> http-/www.mccamt)bell.com E-mail:main@mecampbell.com <br /> • QC REPORT <br /> VOCs EPA 8240/8260 <br />' Date:_01/31/02 Extraction: EPA 5030 Matrix: Water <br /> Concentration. uglL %Recovery <br /> CompoundRPD <br /> Amount <br />' Sample; MS MSD Spiked MS MSD <br /> Sampllela: 20702 Instrument: GC-10 <br /> surrogate NO 98.0 99.0 10000 98 99 1.0 ;If <br /> 1 tert-Amyl Methyl Ether NO 10.0 1 10.1 10.00 100 101 1.0 <br /> Methyl tert-Butyl Ether ND 10.3 10.3 i- 10.00- 103 103 1 OA <br /> iEthyl tert-Butyl Ether ND 10.7 10.7 10.00 107 107 ii 0.0 ;� <br /> Di-isopropyl Ether NO 10.3 ' 10.2 10.00 103 1.0'7 <br /> Toluene ND 10.0 9.8 10.00 100 T 98 E 2.0 I' <br /> I Benzene ND 10.1 10.1 10.00 101 101 0.0 <br /> Chlorobenzene NO 10.4 10.4 10.00 104 104 0.0 <br /> Trichloroethene NO 9.0 8-9 10.00 90 �89 1.1 <br /> 1,1-Dichioroethene I ND 8.5 8.3 1-_10.00 - 85 -83 2.4 <br /> 1 <br />' �htiS-Sanrple) <br /> %Re covery= Amakw piked '100 <br /> (MS-MSD) <br /> M. 2•l00 <br /> ASS+MSD) <br /> RPD means Relative Percent Deviation <br />