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Laboratories Inc. - Environmental Testing Laboratory Since 1949 Herst Associates Project: NCYC Reported: 10/07/2009 13:55 4630 South Highway 94 North Outer Road Project Number: Austin Road Saint Charles, MO 63304 Project Manager. Erin Fanning Volatile Organic Analysis (EPA Method 8264) Quality Control Repo - Precision & Accuracy Control Limits Source Source Spike Percent Percent Constituent Batch ID QC Sample Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Lab Quals Benzene BSJ0118 Matrix Spike 0912936-05 ND 25.030 25.000 ug/L 100 70-130 Matrix Spike Duplicate 0912936-05 ND 25.780 25.000 ug/L 3.0 103 20 70-130 _-.. - --- ----- _...........-- - .................__ -................._.__._..-_-__ ..-..--.------....__------------- - - ......_..............._.....---.�-..... Bromodichloromethane BSJ0118 Matrix Spike 0912936-05 ND 24.940 25.000 ug/L 99.8 70-130 Matrix Spike Duplicate 0912936-05 ND 24.530 25.000 ug/L 1.7 98.1 20 70-130 ------ _ .._.._.............-..._._........---_ ..........._-_.-..-.------ -- -...,............._.._.............-...._ _. -_-_._..-...- - - .�.-- .........._.._....-- __.._.......__......._............_.-_...... __._..-.-................. .._...�--- Chlorobenzene BSJO118 Matrix Spike 0912936-05 ND 24.720 25.000 ug/L 98.9 70-130 Matrix Spike Duplicate 0912936-05 ND 26.590 25.000 ug/L 7.3 106 20 70-130 ---- ....._.....__. .........._.........._ .................-......_.� _... .._...----- -...._._.._..-...-...._..............._._... .-_....-------...._._-- ---....__....... - ..-. ---.._...... __.-_..--....._......_._.._._........-- ..-._._....... .------ Chloroethane BSJO118 Matrix Spike 0912936-05 ND 24.180 25.000 ug/L 96.7 70-130 Matrix Spike Duplicate 0912936-05 ND 24.810 25.000 ug/L 2.6 99.2 20 70-130 - ..._.................__..-_.___..._..__...---................----..._...------..------- - --_....____ -........----.._.........--- -----_............._-__-_. -.._._... - -.......... 1,4-Dichlorobenzene BSJO118 Matrix Spike 0912936-05 ND 25.700 25.000 ug/L 103 70-130 Matrix Spike Duplicate 0912936-05 ND 26.960 25.000 ug/L 4.8 108 20 70-130 -_..-_........-----------------..._ -.....-__._......_..._. -- ..__.__..........-------.._....-------_.........._. --- ---._.._-..._.... --- -....... 1,1-Dichloroethane BSJO118 Matrix Spike 0912936-05 ND 24.010 25.000 ug/L 96.0 70-130 Matrix Spike Duplicate 0912936-05 ND 25.470 25.000 ug/L 5.9 102 20 70-130 -----___.._.._.........---......_-._...._...._ _.._.__-_._..-.-..._.._ _._.... _-_........-- ----..........__.__......--- _........ - --....... __.... _ _.._.__�..._ ,_... 1,1-Dichloroethene BSJ0118 Matrix Spike 0912936-05 ND 25.720 25.000 ug/L 103 70-130 Matrix Spike Duplicate 0912936-05 ND 25.330 25.000 ug/L 1,5 101 20 70-130 _._.--.-......_._ - ..... ..._..._...._--..__......... - ----.........,._-.._... _... - ..............-- - ---. .-...__........._..........._.----_.........._........_.._ -... - ... Toluene BSJO118 Matrix Spike 0912936-05 ND 24.360 25.000 ug/L 97.4 70-130 Matrix Spike Duplicate 0912936-05 ND 23.720 25.000 ug/L 2.7 94.9 20 70-130 .._. .----- ........- ---_--__- __._..._..__ ----- ...------ .... - ..... _._...- -._ --��...._ - Trichloroethene BSJ0118 Matrix Spike 0912936-05 ND 23.000 25.000 ug/L 92.0 70-130 Matrix Spike Duplicate 0912936-05 ND 23.770 25.000 ug/L 3.3 95.1 20 70-130 -- ---- -- - - v....- ------------ - - -...._-__..._...... .._-............... ------ -- ............. ..-..._.•_.._....-------.................._....-.....-...._....................... ..`.__.._...--_...... -- ._._.. 1,2-Dichloroethane-d4(Surrogate) BSJ0118 Matrix Spike 0912936-05 ND 10.870 10.000 ug/L 109 76-114 Matrix Spike Duplicate 0912936-05 ND 10.860 10.000 ug/L 109 76-114 -....................-.._.._...-------__ _ ..._-._... _-_._.-- .._..----........__.-... -.. _.... �- ._...._�__...._-...-.-- _......__.-.._.--__...-..... ----------_- Toluene-d8(Surrogate) BSJO118 Matrix Spike 0912936-05 ND 9.8700 10.000 ug/L 98.7 88-110 Matrix Spike Duplicate 0912936-05 ND 9.7200 10.000 ug/L 97.2 88-110 -........... - _--....... ...--- -_..._-_ ---------•--__._._._-... --- ...__........_.._ ._....�.. - -.-............--- ..........._....-- --........._.__....... .._ - 4-Bromofluorobenzene(Surrogate) BSJO118 Matrix Spike 0912936-05 ND 10.180 10.000 ug/L 102 86-115 Matrix Spike Duplicate 0912936-05 ND 10.490 10.000 ug/L 105 86-115 -----...............-- ....._..--__.. -- ....... __ - ----- - -._....---------_._._...._..-............ --._....---�_....._-.........._._.... _-._.._........_._.._.- Benzene BSJO211 Matrix Spike 0913032-03 ND 23.950 25.000 ug/L 95.8 70-130 Matrix Spike Duplicate 0913032-03 ND 23.830 25.000 ug/L 0.5 95.3 20 70-130 The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report must he reproduced in its entirety. 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,detaclunent or fluid party interpretation. 4100 Atlas Court Bakersfield, CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 31 of 44 Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A