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Laboratories, Inca <br /> Environmental Testing Laboratory Since 1949 <br /> Herst Associates Project: NCYC Reported: 01/26/2009 14:30 <br /> 4630 South Highway 94 North Outer Road Project Number: NCYCC VOC Samples <br /> Saint Charles,MO 63304 Project Manager: Brian Power <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Report- Precision & Accuracy <br /> Corttroi Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sam le Type Sample ID Result Result Added Units RPD Recove RPD Recovery Lab Quaffs <br /> Bramodichloromethane BSA1304 Matrix Spike 0900836-01 0 26.400 25.000 ug/L 106 70-130 <br /> Matrix Spike Duplicate 0900836-01 0 25.920 25.000 ug/L 1.9 104 20 70-130 <br /> ---- <br /> _-._ 104 <br /> 130 <br /> Chlorobenzene BSA1304 Matrix Spike 0900836-01 0 25.940 25 fl00 ug/L - <br /> Matrix Spike Duplicate 0900836-01 0 25.370 25.000 ug/L 1.0 105 20- 70-130 <br /> 119 <br /> 70-130 <br /> Chloroethane BSA1304 Matrix Spike 0900836-01 0 29.760 25.000 ug/L <br /> Matrix Spike Duplicate 0900836-01 0 28.980 25.000 ug/L 2.6 116 20 TO-130 <br /> 130 <br /> 1,4-Dichlorobenzene BSA1304 Matrix Spike 0900836-01 0 24.520 25.000 ug/L 98.1 7 <br /> Matrix Spike Duplicate 0900836-01 0 25.250 25.000 ug/L 2.9 101 20 70-_1 30 <br /> - <br /> ------ <br /> 1,1-Dichloroethane - BSA1304 Matrix Spike 0900836-01 0 28.110 25.000 ug/L 112 70-130 <br /> Matrix Spike Duplicate 0900836-01 0 27.960 25.000 ug/L 0 112 20 70-13-0 <br /> 118 70-1 <br /> 1,1-Dichloroethene <br /> BSA1304 Matrix Spike 0900836-01 0 29.590 25.000 ug/L <br /> Matrix Spike Duplicate 0900836-01 0 29.050 25.000 ug/L 1.7 116 20 70-130 - <br /> Toluene BSA1304 Matrix Spike 0900836-01 0 27.140 25.000 ug/L 109 - <br /> 130 <br /> Matrix Spike Duplicate 0900836-01 0 27.250 25.000 ug/L 0 --109 _20 TO-130--- <br /> _.. -- ------------------ <br /> - --- - <br /> 130 <br /> Trichloroethene BSA1304 Matrix Spike 0900836-01 0 26.940 25.000 ug/L 108 7 - <br /> Matrix Spike Duplicate 0900836-01 0 27.520 25.000 ug/L 1.8 110 20 70-130 <br /> 1,2-Dichioroethane-d4(Surrogate) BSA1304 Matrix Spike 0900836-01 ND 10.400 10.80ug/L 104 76-1140 <br /> Matrix Spike Duplicate 0900836-01 ND 10.080 10.000 ug/L 101 76-114 <br /> Toluene-d8(Surrogate) BSA1304 Matrix Spike 0900836-01 ND 10.040 10.000 ug/L 100 88-110 <br /> Matrix Spike Duplicate 0900836-01 ND 10.170 10.000 ug/L 102 88-110 <br /> 8 86-115 <br /> --- <br /> 93. <br /> 4-Bromofluorobenzene(Surrogate) BSA1304 Matrix Spike 0900836-01 ND 9.3800 10.000 ug/L <br /> Matrix Spike Duplicate 0900836-01 ND 9.6800 10-000 ug/L 96.8 86-115 <br /> T resielts in this report I to the samples analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> - slisre�eaort axcl��rt}c nartr�� rato assnm nsib ' n s chme party alio. <br /> n Atl�"!.'df rt B�eld,CAI'�3'�08r 7-4 (661918 .bcla - °f <br />