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110 2nd Ave.South,#D7,Pacheco,CA 94553-5560 <br /> WCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> http://www.mcca=bell.corn E-mail:main@mccampbell.com <br /> QC REPORT <br /> `. { Hydrocarbons Analysis <br /> Date: 02/08/00 Matrix: Water/Air <br /> Extraction: N/A <br /> Concentration: uglL %Recovery <br /> Compound Amount RPD <br /> Sample : MS ; MSD Spiked MS MSD <br /> SamplelD: 2800 Instrument: GC-12 <br /> Surrogatel 0.000 98.0 100.0 100.00 98 100 2.0 <br /> Xylenes 0.000 325.0 329.0 300.00 108 110 1.2 <br /> Ethyl Benzene 0.000 107.0 110.0 100.00 107 110 2.8 <br /> Toluene 0.000 106.0 108.0 100.00 106 108 1.9 <br /> Benzene 0.000 110.0 113.0 100.00 110 113 2.7 <br /> MTBE 0.000 105.0 109.0 100.00 105 109 3.7 <br /> GAS 0.000 958.2 980.11000.00 96 98 2.3 <br /> lam•' <br /> ,i <br /> C:is <br /> MS—Sample) <br /> Re covery= 4n�ow�lSp+ked 'l00 <br /> •.l <br /> MS—MSD) <br /> RPD= .2-104 <br /> `.: MS+MSD) <br /> RPD means Relative Percent Deviation <br />