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' 110 2nd Ave South,#D7 Pacheco, CA 94553-5560 <br /> WCA DBELL AANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> hU//www mcgaMpbeli go E-mail main@mccampbell corn <br /> QC REPORT <br /> Date 07107100-07108100 Matrix Water <br /> Extraction NIA <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spred MS MSD <br /> ' SamplelD 40793 Instrument GC-3 <br /> Surrogatel 0 000 1000 990 10000 100 99 1 0 <br /> ' Xylenes 0 000 2840 2830 30000 95 94 0 4 <br /> Ethyl Benzene 0 000 960 950 10000 96 95 1 0 <br /> ' Toluene 0 000 980 970 10000 98 97 1 0 <br /> Benzene 0 000 980 990 10000 98 99 1 0 <br /> ' MTBE 0 000 1100 1050 10000 110 105 4 7 <br /> GAS 0 000 8560 8477 100000 86 85 1 0 <br /> ♦ SamplelD 7700 Instrument MB-1 <br /> Oil&Grease 0 000 190 188 20 00 1 95 94 1 1 <br /> ' SamplelD 7700 Instrument GC-11 A <br /> Surrogatel 0 000 1170 111 0 100 00 117 111 53 <br /> ' RPh (diesel) 0 000 3090 296 0 L_300 00 103 99 4 3 <br /> I <br /> MS—Sampfe� <br /> %Re covery= AmaurttSpiked l00 <br /> RPDAMS—MSD <br /> 2140 <br /> ' (MS+MSD) <br /> RPD means Relative Percent Deviation <br />