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ll : Laboratories, �nC. i <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 03x14/2009 11:14 <br /> 4630 South Highway 94 North Outer Road Project Number: Monthly <br /> Saint Charles, M0 63304 Project Manager: David Vasbinder <br /> Volatile Organic Analysis (EPA Method8260) <br /> Quality Control Repo - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample Type Sample ID Result Result Added Units RPD RecoverRPD Recove Lab Quals <br /> Benzene BSC1391 Matrix Spike 0903406-24 0 24.630 25.000 ug/L 98.5 70-130 <br /> Matrix Spike Duplicate 0903406-24 0 23.410 25.000 ug/L 5.1 93.6 20 70-130 <br /> Bromodichloromethane BSC1391 Matrix Spike 0903406-24 0 23.080 25.000 ug/L 92.3 70-130 <br /> Matrix Spike Duplicate 0903406-24 0 22.150 25,000 ug/L 4.1 88.6 20 70-130 <br /> Chlorobenzene BSC1391 Matrix Spike 0903406-24 0 22.990 25.000 ug/L 92.0 70-130 <br /> Matrix Spike Duplicate 0903406-24 0 21.730 25.000 ug/L 5.7 86.9 20 70-130 <br /> . __ <br /> ......_...-.-___ - ____._, _ _ _................_.-.._ ....-._ - <br /> 70-130 <br /> Chloroethane 8SC1391 Matrix Spike 0903406-24 0 23-510 25.000 ug/L 94.0 <br /> Matrix Spike Duplicate 0903406-24 0 22.340 25.000 ug/L 5.0 89.4 20 70-130 <br /> 1,4-Dichlorobenzene BSC1391 Matrix Spike 0903406-24 0 20.620 25.000 ug/L 82.5 70-130 <br /> Matra Spike Duplicate 0903406-24 0 19.440 25.000 ug/L 5.9 77.8 20 70-130 <br /> -- - - ------ "1,,-------.----- <br /> 0903406-24 0 25.970 25 000 ug/L 104 70-130 <br /> 1,1-Dichloroefhane BSC1391 Matrix Spike <br /> Matrix Spike Duplicate 0903406-24 0 24.890 25 000 ug/L 4.3 99.6 20 70-130 <br /> -._...... -- _......_....- -_- --.- ...-_ --- <br /> 1,1-Dic hloroethene 8SC1391 Matrix Spike 0903406-24 0 23.240 25.000 ug/L 93.0 70-130 <br /> Matrix Spike Duplicate 0903406-24 0 22.470 25.000 ug/L 3.4 89.9 20 70-130 <br /> _..__._-----_._..__.� ._. .__ _-_ ---_.__..... ___. <br /> Toluene BSC1391 Matrix Spike 0903406-24 0 22.120 25.000 ug/L 88.5 70-130 <br /> Matrix Spike Duplicate 0903406-24 0 20.630 25.000 ug/L 7.0 82.5 20 70-130 <br /> ---- ..-- ....__- -- ............. -_.._...._. <br /> Trichloroethene BSC1391 Matra Spike 0903406-24 - 0 -23.890 25.000 ug/L- i95 6 70-130 4 <br /> Matra Spike Duplicate 0903406-24 0 21.360 25.000 ug/L 11.3 85.4 20 70-130 <br /> 130 <br /> _ --- <br /> __.. ._-. ......- --....- ---. - - <br /> 1,2-Dichloroethane-d4(Surrogate) BSC1391 Matrix Spike 0903406-24 ND 9.6900 10.000 ug/L 96.9 76-114 <br /> Matrix Spike Duplicate 0903406-24 ND 10.010 10.000 ug/L 100 76-114 <br /> --... _.�_... -..,. .... -- ---_--- ... ._.._--....-._._._-.- --- - <br /> Toluene-d8(Surrogate) BSC1391 Matrix Spike 0903406-24 ND 9.8500 10.000 ug/L 98.5 88-110 <br /> Matrix Spike Duplicate 0903406-24 ND 9.8100 10.000 ug/L 98.1 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BSC1391 Matrix Spike 0903406-24 ND 9.9700 10.000 ug/L 99.7 86-115 <br /> Matrix Spike Duplicate 0903406-24 ND 10.040 10.000 ug/L 100 86-115 <br /> 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 pasty. BC Laboratories,Inc,assunus no responsbdity for report alteration-separation,detaclunent or third party interpretation. Page 31 Of 36 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bciabs.com g <br /> Certifications: California-FLAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />