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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//www mccampbell co m E-mail main@mccampbell corn <br />' QC REPORT <br /> EPA 8015m + 8020 <br /> Date 06/27/01 Extraction EPA 5030 Matrix Air <br /> Concentration ug/L %Recovery <br /> Compound Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> SamolelD 62001 Instrument, GC-7 <br />' Surrogatel ND 1010 960 10000 101 96 51 €f <br /> Xylenes ND 349 353 3000 116 118 1 1 <br /> Ethylbenzene ND 109 108 1000 109 108 09 <br /> Toluenei ND 107 105 1000 107 105 1 9 <br /> Benzene ND 99 96 1000 99 96 3 1 <br /> MTBE ND 9 8 9 7 1000 98 97 1 0 <br /> TPH (gas) ND 1140 1138 10000 114 114 0 2 <br /> I <br /> i <br /> 1 <br /> MS—Sample <br /> %Recovery= 1 pp <br /> AmouufSpiked <br /> RPD— MS—MSD 2100 <br /> IMS+MSD) <br /> RPD means Relative Perccnt deviation <br />