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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 /> lConstituent Batch ID OC Sample ID MB Result Units POL MDL Lab Quals <br /> Benzene BQJ1250 BQJ1250-BLK1 <0.50 ug .............. 0,50 <br /> . -- .. .... <br /> I-,........... ...... <br /> BromochloromethaneBQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> -- --------- �.I-----------.......... ...................- <br /> Bromodichloromethane BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> Bromoform BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> Bromornethane BQJ1250 BQJ1250-BLK1 <1.0 ug/L 1.0 <br /> Carbon tetrachloride BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> Chlorobenzene BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> ...................... ....... <br /> Chloroethane BQJ1250 BQJ1250-BLK1 <0.50 ug/L -0-50 11. . <br /> --------------.. .......... .................................... .... ............. <br /> Chloroform BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.so <br /> ............ ........ ........... ............... ...... . ..... <br /> Chloromethane BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> 1111. _1111 <br /> Dibromochloromethane BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> ------------- ----------- .......---------------------------- ....... ........ ........- ........... .......... <br /> 1,2-Dibrorno-3-chloropropane BOJI250 BQJ1250-BLKI <1.0 ug-I.L 1-.0 <br /> .............. - 111 . ---...... <br /> 1,2-Dibromoethane BQJ1250 BQJ1250-BLKI <0.50 ug/L .......0.1 50 <br /> Dibromomethane BQJ1250 BQJ1250-BLK1 <0.50 ugIL 0.50 <br /> 11 11.1 -1-11-1.......... -------------- <br /> 1,2-Dichlorobenzene BQJ1250 BQJ1250-BLKI <0.50 ugIL 0.1 50 <br /> 1,3-Dichlorobenzene BQJ1250 BQJ1250-B L KI <.0.5.0 u-g L 0.50 <br /> 1,4-Dichlorobenzene BOJI250 BQJ1250-BLKI <0.50 ug/L 0.50 50 <br /> ............ <br /> Dichlorodifluoromethane BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0.50 <br /> . <br /> --................ ------ ...... ------ <br /> 1,1-Dichloroethane BQJ1250 BQJ1250-BLK1 <Mo ug/L 0.50 <br /> ........ ... -------- <br /> 1,2-Dichloroethane BQJ1250 BQJ1250-BLK1 <0.50 ug/L 0 50 <br /> -- - .......... ......------ --------- ------ <br /> 50 <br /> 1,1-Dichloroethene BQJ1250 BQJ1250-BLKI <0,50 ug/L 01 ................. ..... <br /> .................--------- ............ ---------- <br /> cis-1,2-Dichloroethene BQJ1250 BQJ1250-BLK1 <0.50 ug/I L.. 0....5-0---1.1 ...... <br /> .................--. <br /> ' ............. .......... _-__1111-1.111.. . -------.....................-.-........... <br /> trans-1,2-Di chloroethene BQJ1250 BQJ1250-BLK1 <0.50 u 11 g/L -0.50 <br /> _.-------------- ------------ ...... ......- ...... 111 ------------ ....... <br /> 1,2-Dichloropropane BQJ1250 BQJ'1-25.0-.B-LK1-... u.g/L 0.50 <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 entirety. <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 orthird party interpretation page 29 of 32 <br /> 4 100 Atlas Court*Bakersfield,CA 93308-(661)327-491.1 -FAX(661)327-1918 -www.belabs.com <br />