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12065 Lebanon Rd. <br />Mt. Juliet, TN 37122 <br />(615) 758 -585 <br />OESC 8 <br />1- 800 - 767 -5859 <br />Fax (615) 758 -5859 <br />L•A•B S•CGI•E -W C,E•B <br />Tax I.D. 62- 0814289 <br />• _ • • <br />Est. 1970 <br />Molen & Associates, LLC <br />Mark Molen <br />2090 East 104th Avenue Suite #205 Quality Assurance Report <br />Level II <br />Thornton, CO 80223 May 13, 2013 <br />L633267 <br />Nitrate <br />mg /l <br />Laboratory <br />Control <br />Sample Duplicate <br />98.4 <br />80 -120 <br />L633245 -01 <br />WG659150 <br />Analyte <br />Units <br />Result <br />Ref <br />%Rec <br />Limit <br />RPD <br />Limit <br />Batch <br />Trichloroethene <br />mg /1 <br />0.0232 <br />0.0233 <br />93.0 <br />69 -131 <br />0.440 <br />20 <br />WG659248 <br />Trichlorofluoromethane <br />mg /l <br />0.0230 <br />0.0223 <br />92.0 <br />53 -161 <br />3.09 <br />20 <br />WG659248 <br />Vinyl acetate <br />mg /l <br />0.126 <br />0.123 <br />101. <br />47 -161 <br />2.20 <br />20 <br />WG659248 <br />Vinyl chloride <br />mg /l <br />0.0236 <br />0.0230 <br />94.0 <br />55 -142 <br />2.60 <br />20 <br />WG659248 <br />Xylenes, Total <br />mg /l <br />0.0743 <br />0.0736 <br />99.0 <br />77 -123 <br />0.940 <br />20 <br />WG659248 <br />4- Bromofluorobenzene <br />mg /l <br />0.0241 <br />0 <br />97.46 <br />82 -120 <br />74 -137 <br />L633267 -01 <br />WG659248 <br />Dibromofluoromethane <br />mg /1 <br />0.0253 <br />0 <br />96.74 <br />82 -126 <br />75 -125 <br />L633267 -01 <br />WG659248 <br />Toluene -d8 <br />mg /l <br />0.0226 <br />0 <br />96.66 <br />92 -112 <br />59 -135 <br />L633267 -01 <br />WG659248 <br />a,a,a- Trifluorotoluene <br />mg /1 <br />0.0228 <br />0 <br />97.94 <br />90 -116 <br />68 -126 <br />L633267 -01 <br />WG659248 <br />pH <br />su <br />5.88 <br />5.87 <br />102* <br />98.3-101.7 <br />0.170 <br />20 <br />WG659158 <br />Specific Conductance <br />umhos/ <br />890. <br />891. <br />101. <br />85 -115 <br />0.112 <br />20 <br />WG659183 <br />TOC (Total Organic Carbon) <br />mg /l <br />69.8 <br />71.9 <br />93.0 <br />85 -115 <br />2.96 <br />20 <br />WG659200 <br />Specific Conductance <br />umhos/ <br />897. <br />896. <br />102. <br />85 -115 <br />0.112 <br />20 <br />WG659591 <br />Alkalinity <br />mg /l <br />99.4 <br />102. <br />99.0 <br />85 -115 <br />2.58 <br />20 <br />WG659301 <br />Acrylonitrile <br />mg /l <br />0.112 <br />Matrix <br />Spike <br />89.6 <br />49 -162 <br />L633267 -01 <br />WG659248 <br />Analyte <br />Units <br />MS Res <br />Ref Res <br />TV % Rec <br />Limit <br />Ref <br />Samp <br />Batch <br />Nitrate <br />mg /l <br />5.33 <br />0.410 <br />5 <br />98.4 <br />80 -120 <br />L633245 -01 <br />WG659150 <br />1,1,1,2 - Tetrachloroethane <br />mg /l <br />0.0245 <br />0 <br />.025 <br />97.8 <br />71 -130 <br />L633267 -01 <br />WG659248 <br />1,1,1 - Trichloroethane <br />mg /l <br />0.0230 <br />0 <br />.025 <br />91.8 <br />58 -137 <br />L633267 -01 <br />WG659248 <br />1,1,2,2 - Tetrachloroethane <br />mg /1 <br />0.0240 <br />0 <br />.025 <br />96.0 <br />64 -149 <br />L633267 -01 <br />WG659248 <br />1,1,2 - Trichloroethane <br />mg /l <br />0.0241 <br />0 <br />.025 <br />96.5 <br />73 -128 <br />L633267 -01 <br />WG659248 <br />1,1- Dichloroethane <br />mg /1 <br />0.0229 <br />0 <br />.025 <br />91.7 <br />58 -133 <br />L633267 -01 <br />WG659248 <br />1,1- Dichloroethene <br />mg /1 <br />0.0200 <br />0 <br />.025 <br />79.8 <br />32 -152 <br />L633267 -01 <br />WG659248 <br />1,2,3 - Trichloropropane <br />mg /l <br />0.0241 <br />0 <br />.025 <br />96.3 <br />74 -137 <br />L633267 -01 <br />WG659248 <br />1,2- Dichlorobenzene <br />mg /1 <br />0.0253 <br />0 <br />.025 <br />101. <br />75 -125 <br />L633267 -01 <br />WG659248 <br />1,2- Dichloroethane <br />mg /l <br />0.0226 <br />0 <br />.025 <br />90.3 <br />59 -135 <br />L633267 -01 <br />WG659248 <br />1,2- Dichloropropane <br />mg /1 <br />0.0228 <br />0 <br />.025 <br />91.2 <br />68 -126 <br />L633267 -01 <br />WG659248 <br />1,4- Dichlorobenzene <br />mg /1 <br />0.0243 <br />0 <br />.025 <br />97.2 <br />70 -123 <br />L633267 -01 <br />WG659248 <br />2- Butanone (MEK) <br />mg /1 <br />0.138 <br />0 <br />.125 <br />111. <br />51 -149 <br />L633267 -01 <br />WG659248 <br />2- Hexanone <br />mg /l <br />0.145 <br />0 <br />.125 <br />116. <br />58 -148 <br />L633267 -01 <br />WG659248 <br />4- Methyl -2- pentanone (MIBK) <br />mg /1 <br />0.133 <br />0 <br />.125 <br />107. <br />53 -154 <br />L633267 -01 <br />WG659248 <br />Acetone <br />mg /1 <br />0.126 <br />0.00229 <br />.125 <br />99.3 <br />34 -146 <br />L633267 -01 <br />WG659248 <br />Acrylonitrile <br />mg /l <br />0.112 <br />0 <br />.125 <br />89.6 <br />49 -162 <br />L633267 -01 <br />WG659248 <br />Benzene <br />mg /1 <br />0.0223 <br />0 <br />.025 <br />89.2 <br />51 -134 <br />L633267 -01 <br />WG659248 <br />Bromochloromethane <br />mg /l <br />0.0231 <br />0 <br />.025 <br />92.4 <br />67 -131 <br />L633267 -01 <br />WG659248 <br />Bromodichloromethane <br />mg /l <br />0.0231 <br />0 <br />.025 <br />92.2 <br />67 -132 <br />L633267 -01 <br />WG659248 <br />Bromoform <br />mg /l <br />0.0263 <br />0 <br />.025 <br />105. <br />59 -137 <br />L633267 -01 <br />WG659248 <br />Bromomethane <br />mg /l <br />0.0187 <br />0 <br />.025 <br />74.6 <br />23 -177 <br />L633267 -01 <br />WG659248 <br />Carbon disulfide <br />mg /l <br />0.0176 <br />0 <br />.025 <br />70.3 <br />10 -165 <br />L633267 -01 <br />WG659248 <br />Carbon tetrachloride <br />mg /l <br />0.0229 <br />0 <br />.025 <br />91.6 <br />49 -140 <br />L633267 -01 <br />WG659248 <br />Chlorobenzene <br />mg /l <br />0.0240 <br />0 <br />.025 <br />95.9 <br />69 -126 <br />L633267 -01 <br />WG659248 <br />Chlorodibromomethane <br />mg /l <br />0.0251 <br />0 <br />.025 <br />100. <br />68 -130 <br />L633267 -01 <br />WG659248 <br />Chloroethane <br />mg /l <br />0.0190 <br />0 <br />.025 <br />76.0 <br />32 -177 <br />L633267 -01 <br />WG659248 <br />Chloroform <br />mg /l <br />0.0235 <br />0 <br />.025 <br />94.1 <br />64 -130 <br />L633267 -01 <br />WG659248 <br />Chloromethane <br />mg /l <br />0.0197 <br />0 <br />.025 <br />78.6 <br />27 -155 <br />L633267 -01 <br />WG659248 <br />* Performance of this Analyte <br />is outside <br />of established <br />criteria. <br />For additional information, <br />please see <br />Attachment <br />A 'List of Analytes <br />with QC <br />Qualifiers.' <br />Page 18 of 22 <br />