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Laborator es�I �WL�_ - <br /> �__ <br /> Environmental Testing Laboratory Since 1949 <br /> Project: NCYC Reported: 06/24/2008 10:54 <br /> Nerst Associates <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager: David Vasbinder <br /> Volatile Organic Analysis (EPA Method 6260) <br /> Quality Control Report - Precision & Accuracy <br /> Control Lim! <br /> s <br /> Source Source Spike Percent Percent <br /> =Constituent Batch ID QC Sample Type Sample 1D Result Result Added Units RPD Recove RPD Recover Lab Qua[s <br /> Benzene BRF1328 Matrix Spike 0808008-02 1.7900 25.700 25.000 ug/L 95.6 70-130 <br /> Matrix Spike Duplicate 0808008-02 1.7900 25.000 25.000 ug/L 3.0 92.8 20 70-130 <br /> - - - -- <br /> Bromodichloromethane BRF1328 Matrix Spike 0808008-02. ND 29.100 25.000 ug/L 116 70 130 <br /> Matrix Spike Duplicate 0808008-02 ND 28.660 25.000 ug/L 0,9 115 20 7p 130 <br /> Chlorobenzene BRF1328 Matrix Spike 0808008-02 ND 25.210 2&000 ug/L 101 70-130 <br /> Matrix Spike Duplicate 0808008-02 ND 24.770 25 000 ug/L 1.9 99.1 20 70-130 <br /> -.. .__.._ ..._-- _-._..__. -.. <br /> 70-130 <br /> Chloroethane BRF1328 Matrix Spike 0808008-02 ND 27.200 25.000 ug/L 109 <br /> Matrix Spike Duplicate 0808008-02 ND 25.300 25.000 ug/L 7_6 -101 20 70130,---,,---- <br /> . <br /> 30_ - -- <br /> 1,4-Dichlorobenzene BRF1328 Matrix Spike 0808008-02 1.5500 28.140 25.000 ug/L 106 -130 <br /> Matrix Spike Duplicate 0808008-02 1.5500 26.880 25,000 ug/L 4.8 101m 20- 70-130 <br /> 70-130 <br /> 98.9 <br /> 1,1-Dichloroethane BRF1328 Matrix Spike 0808008-02 2.5000 27.230 25.000 ug/L <br /> Matrix Spike Duplicate 0808008-02. 2.5000 26.610 - 25.000 - ug/L <br /> .._..._.-2.6---.-96.-4-'--.--.-20 7110-1130 <br /> 130 <br /> 1,1-Dichloroethene BRF1328 Matrix Spike 0808008-02 ND 27.190 25.000 ug/L 109 70- <br /> Matrix Spike Duplicate 0808008-02 ND 26.160 25.000 ug/L 3.7 105 �-20 70-130 - <br /> Toluene BRF1328 Matrix Spike 0808008-02 0.23000 25.180 25.000 ug/L 99,8 <br /> 70-130 <br /> Matrix Spike Duplicate 0808008-02 0.23000 23.890 25.000 ug/L 5.3 94-6 20 70-130 <br /> Trichloroethene BRF1328 Matrix Spike 0808008-0?. 3.0600 26.470 25.000 ug/L 93.6 70-130 <br /> Matrix Spike Duplicate 0808008-02 3.0600 25.780 25.000 ug/L 2.9 90.9- 20 70-130„ -� <br /> 1,2-Dichloroethane-d4(Surrogate) BRF1328 Matrix Spike 0808008-02 ND 12.110 10.000 ug/L 121 76-114 <br /> 4 Matrix Spike Duplicate 0808008-02 ND 11.870 10.000 ug/L� 119 _ _... 76_114 S09_ ` <br /> 100 <br /> 88-110 <br /> Toluene-d8(Surrogate) BRF1328 Matrix Spike 0808008-02 ND 10.050 10,000 ug/L <br /> Matrix Spike Duplicate 0808008-02 ND 9.8700 10.000 ug/L 98.7 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BRF1328 Matrix Spike 0808008-02 ND 10.310 10,000 ug/L 103 86'1 <br /> Matrix Spike Duplicate 0808008-02 ND 10.7fi0 10.000 ug/L 108 86-115 <br /> Tito results in this report apply to the samples anal)zed in accordance with the chitin of custody document.This analytical report must be reproduced in its entirety. <br /> All results listed ut this report are for t13e exclusive use of the submitting patty. Be Laboratories,Inc.assumes no responsibility'for report alteration,separation,detachment or third party interpretation_ Page 31 of 36 <br /> _ . .. - 1-1- enas CAV tRRly 497_1Q1R wwwhclabs.com <br />