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OESC l <br />Molen & Associates, LLC <br />Mark Molen <br />2090 East 104th Avenue Suite #205 <br />Thornton, CO 80223 <br />Quality Assurance Report <br />Level II <br />L571648 <br />12065 Lebanon Rd. <br />Mt. Juliet, TN 37122 <br />(615) 758 -5858 <br />1- 800 -767 -5859 <br />Fax (615) 758 -5859 <br />Tax I.D. 62- 0814289 <br />Est. 1970 <br />May 02, 2012 <br />Analyte Units MS Res Ref Res TV o Rec Limit Ref Samp Batch <br />Nitrate mg /l 6.87 1.60 5 105. 80 -1 20 L571644 -04 WG589475 <br />9597 <br />TOC (Total Organic Carbon) mg /l 51.4 0 50 103. 80 -120 L571426 -02 WG589539 <br />Mercury mg /l 0.00262 0 .003 87.3 70 -130 L571637 -01 WG589637 <br />9687 <br />TOC (Total Organic Carbon) mg /1 55.9 3.80 50 104. 80 -1 20 L571671 -01 WG589846 <br />Antimony <br />mg /l <br />0.0581 <br />0 <br />.0567 <br />102. <br />75 <br />-125 <br />9579 <br />Bromochloromethane <br />mg /l <br />0.0232 <br />0 <br />.0 25 <br />92.7 <br />67 -131 <br />L571637 -01 <br />WG589579 <br />Bromodichloromethane <br />mg /l <br />0.0225 <br />0 <br />.025 <br />90.1 <br />67 -132 <br />L571637 -01 <br />WG589579 <br />9816 <br />Cadmium <br />mg /l <br />9579 <br />Bromomethane <br />mg /l <br />0.0252 <br />0 <br />.025 <br />101. <br />23 -177 <br />L571637 -01 <br />WG589579 <br />Carbon disulfide <br />mg /l <br />0.0252 <br />0 <br />.025 <br />101. <br />10 -165 <br />L571637 -01 <br />WG589579 <br />WG589816 <br />9579 <br />Chlorobenzene <br />mg /l <br />0.0237 <br />0 <br />.0_ 25 <br />94.6 <br />69 -1 26 <br />L571637 -01 <br />WG589579 <br />Chlorodibromomethane <br />mg /l <br />0.0224 <br />0 <br />.0 25 <br />89.5 <br />68 -130 <br />L571637 -01 <br />WG589579 <br />with <br />QC Qualifiers.' <br />9579 <br />Chloroform <br />mg /l <br />0.0236 <br />0 <br />.025 <br />94.3 <br />64 -130 <br />L571637 -01 <br />WG589579 <br />Chloromethane <br />mg /l <br />0.0238 <br />0 <br />.025 <br />95.0 <br />27 -155 <br />L571637 -01 <br />WG589579 <br />9579 <br />cis -1,3- Dichloropropene <br />mg /l <br />0.0229 <br />0 <br />.025 <br />91.4 <br />63 -127 <br />L571637 -01 <br />WG589579 <br />Dibromomethane <br />mg /l <br />0.0230 <br />0 <br />.025 <br />91.8 <br />68 -131 <br />L571637 -01 <br />WG589579 <br />- - <br />- <br />- <br />- <br />- - - <br />- <br />-- <br />9579 <br />Iodomethane <br />mg /l <br />0.132 <br />0 <br />.125 <br />106. <br />38 -149 <br />L571637 -01 <br />WG589579 <br />Methylene Chloride <br />mg /1 <br />0.0216 <br />0 <br />.025 <br />- <br />86.3 <br />- <br />2 -130 <br />L571637 -01 <br />WG589579 <br />- <br />- - <br />- 9579 <br />Tetrachloroethene <br />mg /1 <br />0.0241 <br />0 <br />.025 <br />96.5 <br />56 -139 <br />L571637 -01 <br />WG589579 <br />Toluene <br />mg /l <br />0.0232 <br />0 <br />.025 <br />9 ^_.9 <br />61 -136 <br />L571637 -01 <br />WG589579 <br />- <br />- <br />- <br />- <br />- I I 1 - <br />- - <br />- 9579 <br />trans- 1,3- Dichloropropene <br />mg /l <br />0.0228 <br />0 <br />.025 <br />91.3 <br />59 -130 <br />L571637 -01 <br />WG589579 <br />trans- 1,4- Dichloro- 2- butene <br />mg /1 <br />0.0237 <br />0 <br />.025 <br />94.8 <br />51 -145 <br />L571637 -01 <br />WG589579 <br />- <br />- - <br />X0.0259 <br />- - - <br />- - - <br />- - -- - - <br />- - <br />- 9579 <br />Trichlorofluoromethane <br />mg /1 <br />0 <br />.025 <br />103. <br />35 -177 <br />L571637 -01 <br />WG589579 <br />Vinyl acetate <br />mg /l <br />0.117 <br />0 <br />.1_25 <br />93.8 <br />36 -186 <br />L571637 -01 <br />WG589579 <br />- - - <br />- <br />005M <br />-- <br />- <br />- -- <br />- <br />- <br />- 9579 <br />Xylenes, Total <br />mg /1 <br />0.0712 <br />0 <br />.075 <br />94.9 <br />64 -133 <br />L571637 -01 <br />WG589579 <br />4- Bromofluorobenzene <br />95.97 <br />82 -120 <br />WG589579 <br />Toluene -d8 <br />101.5 <br />92 -112 <br />WG589579 <br />a,a,a- Trifluorotoluene <br />98.36 <br />90 -116 <br />WG589579 <br />Nitrate mg /l 6.87 1.60 5 105. 80 -1 20 L571644 -04 WG589475 <br />9597 <br />TOC (Total Organic Carbon) mg /l 51.4 0 50 103. 80 -120 L571426 -02 WG589539 <br />Mercury mg /l 0.00262 0 .003 87.3 70 -130 L571637 -01 WG589637 <br />9687 <br />TOC (Total Organic Carbon) mg /1 55.9 3.80 50 104. 80 -1 20 L571671 -01 WG589846 <br />Antimony <br />mg /l <br />0.0581 <br />0 <br />.0567 <br />102. <br />75 <br />-125 <br />L571872 -06 <br />WG589816 <br />Arsenic <br />mg /l <br />0.0570 <br />0 <br />.0567 <br />100. <br />75 <br />-125 <br />L571872 <br />-06 <br />WG589816 <br />9816 <br />Cadmium <br />mg /l <br />0.0568 <br />0 <br />.0567 <br />100. <br />75 <br />-125 <br />L571872 -06 <br />WG589816 <br />Copper <br />mg /l <br />0.0572 <br />0.000450 <br />.0567 <br />100. <br />75 <br />-125 <br />L571872 -06 <br />WG589816 <br />9816 <br />* Performance of <br />this Analyte is outside <br />of established criteria. <br />For additional <br />information, please see <br />Attachment A <br />'List of Analytes <br />with <br />QC Qualifiers.' <br />Page 19 of 23 <br />