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LABORATORIES, INC. <br /> Herst Associates Project: Misc. Samples Reported: 10/23/2007 12:20 <br /> 4630 South Highway 94 North Outer Road Project Number: NCYC <br /> Saint Charles, MO 63304 Project Manager: David Vasbinder - <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Report - Method Blank Analysis <br /> Constituent Batch ID QC Sample ID MB Result Units POL MDL Lab Quals <br /> 1,3-Dichloropropane BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 ...... <br /> ........... ......... . .......... ------- <br /> U 50 <br /> trans-1,3-Dichloropropene BQJ1250 BQJ1250-BLKI <0.50 ug/L----- <br /> ---------- <br /> Ethylbenzene BQJ1250 BQJ1250-BLKI <0.50 ugJL 0.50 <br /> ...........I..........1111.-_ <br /> ......... -------- <br /> Hexachlorobutadiene BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> -------------------- --------- ............ .... ...... .................. ................ .......... <br /> Methylene chloride BQJ1250 BQJ1250-BLK1 <1.0 ug/L 1.0 <br /> 111-11-1................. ............ -----............ .......-11-........... ------- ...... <br /> Methyl t-butyl ether BQJ1250 BOJI250-BLK1 <0.50 ug/L 0.50 <br /> ............ <br /> .......-111__1_ <br /> Naphthalene BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0,50 <br /> --------- ------ .......... - ..- -.-. . ...... .... <br /> StyreneBQJ1250 BQJ1250-BLK1 <0.50 ugIL 0,50 <br /> .............. <br /> 1,1,2,2-Tetrachloroethane BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> I I-............................ <br /> Tetrachloroethene BQJ1250 BQJ1250-BLKI <0,50 ugIL 0,50 <br /> ........-------------__ <br /> Toluene BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0 50 <br /> ----............. ........... ............................. ...........- ............... ......................... <br /> 1,2,4-Trichlorobenzene BQJ1250 BQJ1250-BLK1 <0-50 ug/L 0.50 <br /> 1,1,1-TrichloroethaneBOJI250 BQJ1250-BLKI <0.50 ....... <br /> ........... <br /> 1,1,2-Trichloroethane BQJ1250 BQJ1250-BLK1 .<O..50. ...... ug/,L,,,,, <br /> ............. ....................... ............ ....... <br /> Trichloroethene <br /> --- BQJ1250 1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> Trichlorofluoromethane <br /> BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> ---................ --------- <br /> 1,2,3-Trichloropropane BQJ1250 BQJ1250-BLKI 0.0 ..ug,/L 1.'-0 <br /> Vinyl chloride BQJ1250 BQJ1250-BLKI <0.50 ugJL 0.50 <br /> Total Xylenes BQJ1250 BQJ1250-BLKI <0.50 ug/L 0.50 ------- <br /> ------------ ................... ............ <br /> AcetoneBQJ 1250 BQJ1250-BLK1 <10 ug/L 10 <br /> ............ ....... .......... .......------------- ...... ....... ------------ .............. ... ....... <br /> Acrylonitrile <br /> BQJ1250 BQJ1250-BLKI <5.0 ug/L 5,0 <br /> 1111..................... ---------------- ----------- ........ -.......... ....... <br /> _ 1111 . <br /> t-Amyl Methyl ether BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> ............ ................. ........... ... ........ ------------ <br /> - <br /> t-Butyl alcohol BQJ1250 BQJ1250-BLKI <10 ug/L 10 <br /> ...... ........ ................................................ ------1 11 ................. ........... --- -.......--- <br /> Carbon disulfide BQJ1250 BQJ1250-BLK1 <1.0 ug/L 1,0--.. <br /> ------------------- ........... --------------- ... ........ ------- <br /> BC Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirely. <br /> All results listed in this report are for the exclusive use of the submitting party.BC Laboratories,Inc.assumes no responsibility for report alteration,separation, detachment or third party interpretation. Page 30 of 32 <br /> 4 100 Atlas Court-Bakersfield,CA 93308-(661)327-4911 -FAX(661)327-1918-www.bclabs.com <br />