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' 110 2nd Ave South,#177, Pacheco, CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> httD l/www mccamubell com E-mail main c(�i mccampbell com <br />' QC REPORT <br /> EPA 8015m + 8020 <br />' Date 09/14/01-09115101 Extraction TTLC Matrix Air <br /> Concentration ug/L %Recovery <br /> Compound - Amount RPD <br /> Sample M5 - MSD Spiked MS MSD <br /> SamplaID 90401 Instrument GC-12 <br />' Surrogatel ! ND 970 _ 96 0 J 10000 97 96 10 31 <br /> _ 4 _ _ <br /> Xylenes ND 336 333 3000 i 112 111 1 09 1J <br /> Ethylbenzene ND 110 109 1 1000 110 109 II 09 <br /> Toluene ND 107 105 - 1000 107 105 19 <br /> Benzene �^ — _ - - — i ND 102 101 1 1000 102 101 10 <br /> MTBE ---_ I ND 9 7 9 9 1000 97 99 T 2 0 <br /> ,- <br /> TPN (gas) ND 949 -- 923 10000 I 95 92 'I 2 7 <br /> MS—sample) <br /> %Recovery= 100 <br /> Aurnufr76pfked <br /> MS—MSD <br /> I RAD= 2100 <br /> (MS+MSD) <br /> RPD means Relative Percent Deviation <br />