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LABORATORIES, INC. <br /> Herst Associates Project: NCYC Reported: 03/03/2008 14:50 <br /> 4630 South Highway 94 North Outer Road Project Number: [none) <br /> Saint Charles, MO 63304 Project Manager: David Vasbinder <br /> Volatile Organic Analysis ( Method8260) <br /> BCL Sample ID: 0802520-03 Client Sample Name: Well#1 /CYA#1,2/22/2008 7:46:OOAM <br /> Prep Run Instru- QC MB Lab <br /> Constituent Result Units PQL MDL Method Date Date/Time Analyst ment ID Dilution Batch ID Bias ousts <br /> t-Butyl alcohol ND ug/L 10 8.6 EPA-8260 02/27/08 02/28/08 18:05 MGC MS-V5 1 BRB1714 ND <br /> _ --.................... -- -- —................._..........1111...........-- -------- — <br /> Carbon disulfide ND ug/L 1.0 0.40 EPA-8260 02127108 02/28108 18:05 MGC MS-V5 1 BRB1714 ND <br /> ------------------ <br /> trans-1,4-Dichloro-2-butene ND ug/L 5.0 2.0 EPA-8260 02/27/08 02/28/08 18:05 MGC MS-V5 1 BRB1714 ND <br /> ---------------._._._.. --- --........._ _.,._..__.._........_._......... --- <br /> Diisopropyl ether ND ug/L 0.50 0.18 EPA-8260 02/27/08 02/28/08 18:05 MGC MS-V5 1 BRB1714 ND <br /> -..................._............._..............__..........- -... ---- .............1111.------ ---......................-- ----- --- - — ----........_....._.... <br /> Ethanol ND ug/L 250 57 EPA-8260 02/27/08 02/28/08 18:05 MGC MS-V5 1 BRB1714 ND <br /> ..... ...._....__ -___—_,..__....._.............._..._.. --......... — ------- _..................................._........_.- -------- -- <br /> Ethyl t-butyl ether ND ug/L 0.50 0.22 EPA-8260 02/27/68 02/28/08 18:05 MGC MS-V5 1 BRB1714 ND <br /> --._.._............._ ...... - --- - - - ----------- -----------_ --------- ... -- <br /> 2-Hexanone ND ug/L 10 2.5 EPA-8260 02/27/08 02/28/08 18:05 MGC MS-V5 1 BRB1714 ND <br /> --__--- - __ __._.___.......-..._................___ --.......__..._...-1_111._.__ __-------11---11..--_- _----- ------ - <br /> Methyl ethyl ketone ND ug/L 10 1.6 EPA-8260 02/27/08 02/28/08 18:05 MGC MS-V5 1 BR81714 ND <br /> — _._._._.....--- -._..._...- -...._.._..._........_..................---—--------------------_-._...--------- -- - — •11,_11_ _ _..__................................. <br /> ......- — ----- ---- <br /> Methyl iodide ND ug/L 2.0 0.42 EPA-8260 02/27108 02/28/08 18:05 MGC MS-V5 1 BRB1714 ND <br /> - ---- 11-11---------------- ----------1.111 _....... <br /> Methyl isobutyl ketone ND ug/L 10 3.4 EPA-8260 02/27/08 02/28/08 18:05 MGC MS-V5 1 BRB1714 ND <br /> ......-......___..--_..._..1111.........................._ -----____--1111-- ----- --- -- ------ _.._ _ --- -- -- <br /> Vinyl acetate ND ug/L 10 3.1 EPA-8260 02127/08 02/28/08 18:05 MGC MS-V5 1 BRB1714 ND <br /> - --------- --------- - -----11.11 _......... -- ---- --................. <br /> - — -- -_._......... <br /> 1,2-Dichloroethane-d4(Surrogate) 104 % 76-114 (LCL-UCL) EPA-8260 02/27/08 02/28/08 18:05 MGC MS-V5 1 BRB1714 <br /> _._...... _.__...................__......_........._._----------- _ _ _.....__............_.............- -......... —-- _._...._._...._..._...._._.._...._.................-- --- — <br /> Toluene-d8(Surrogate) 99.8 % 88-110 (LCL-UCL) EPA-8260 02/27/08 02/28108 18:05 MGC MS-V5 1 BRB1714 <br /> .. .....................-...._.._..._.............------ - --...----- --- - - ---- _ ......__.......—-._..._........_.._ ..._._..... <br /> 4-Bromofluorobenzene(Surrogate) 100 % 86-115 (LCL-UCL) EPA-8260 02/27/08 02/28/08 18:05 MGC MS-V5 1 BRB1714 <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 or third party interpretation. Page 11 of 35 <br /> 4100 Atlas Court-Bakersfield,CA 93308-(661)327-4911 -FAX(661)327-1918-www.bclabs.com <br />