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3B <br /> SOIL VOLATILE MATRIX SPIKE/MATRIX SPIKE DUPLICATE RECOVERY <br /> Lab Name PAN-AG ENVIRO LABS Contract <br /> Project No Site Location Group <br /> Matrix Spike - Sample No 321-9412-956 Level (low/med) LOW <br /> i <br /> SPIKE SAMPLE MS MS QC <br /> ADDED CONCENTRATION CONCENTRATION % LIMITS <br /> COMPOUND (ug/Kg) (ug/Kg) (ug/Kg) REC # REC <br /> Benzene 50 15 77 124 59-172) <br /> Toluene 50 12 75 126 66-142) <br /> thylbenzene 50 0 65 130 (62-137) <br /> Total Xylenes 150 6 203 132 59-139) <br /> r <br /> i <br /> SPIKE MSD MS <br /> ADDED CONCENTRATION % % QC LIMITS <br /> COMPOUND (ug/Kg) (ug/Kg) REC # RPD # RPD REC <br />' Benzene 50 70 108 14 22 59-172) <br /> Toluene 50 69 111 12 21 (66-142) <br /> Ethylbenzene 50 56 ill 15 24 (62-137) <br />' Total Xylenes 150 174 112 16 21 (59-139) <br /> 1 <br /> # Column to be used to flag recovery and RPD values with an asterisk <br />' * Values outside of QC limits <br />' RPD 0 out of 5 outside limits <br /> Spike Recovery 0 out of 10 outside limits <br />' Comments Method 8020 <br /> FORM Ill VOA-2 3/90 <br /> 045 <br />