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' 110 2nd Ave.South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> http:/lwww.mccamphell.com E-mail:main@mccamphell.com <br /> n <br /> QC REPORT <br /> ' VOCs (EPA 824018260) <br /> Date: 02/21/02 Extraction: EPA 5030 Matrix: Water <br /> Concentration: ug/l. %Recovery <br /> CompoundAmount RPD <br /> Sample; MS ; MSD $piked MS MSD <br /> SampielD: 21102 Instrument: GC-10 <br /> Surrogate NO 100.0 ; 98.0 100.00 100 98 2.0 <br /> ' tert-Amyl Methyl Ether NO 9.5 9.4 10.00 95 94 1.1 <br /> Methyl tent-Butyl Ether NO 9.3 9.2 10.00 93 92 1.1 <br /> ' Ethyl tert-Butyl Ether NO 9.9 9.9 10.00 99 99 0.0 <br /> Di-isopropyl Ether NO 9.8 9.8 10.00 98 98 0.0 <br /> 1 <br /> 1 <br /> • (A&–S-,Ple) <br /> %Recovery= 7mo-18piked '100 <br /> (A2S–A&D) <br /> RPD= .2-100 <br /> ' (A43+A&D) <br /> RPD means Relative Percent Deviation <br />