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OESC I <br />Mcien s Associates, LLC <br />Mark Molen <br />2090 East 104th Avenue Suite #205 <br />Thornton, CC 80223 <br />Quality Assurance Report <br />Level II <br />L571648 <br />1 2065 Lebanon Rd. <br />Mt. Juliet, TN 3712^_ <br />(615)58-;858 <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 <br />Units <br />MS Res <br />Ref Res <br />TV <br />8 Rec <br />Limit <br />Ref Samp <br />Batch <br />9579 <br />1,1,1- Trichloroethane <br />mg /l <br />0.0242_ <br />0.0236 <br />96.8 <br />58- 137 <br />2.72 <br />9816 <br />Thallium <br />mg /l <br />0.0556 <br />0 <br />.0567 <br />98.1 <br />75 -125 <br />L571872 -06 <br />WG589816 <br />Zinc <br />mg /1 <br />0.0632 <br />0.00330 <br />.0567 <br />106. <br />75 -125 <br />L571872 -06 <br />WG589816 <br />Barium <br />mg /l <br />1.31 <br />0.160 <br />1.13 <br />102. <br />75 -125 <br />L571750 -o8 <br />WG589680 <br />Calcium <br />mg /l <br />210. <br />198. <br />11.3 <br />106. <br />75 -125 <br />L571750 -08 <br />WG589680 <br />98.4 <br />32-152 <br />1.53 <br />20 <br />L571637 -01 <br />WG589579 <br />- - - <br />9680 <br />Cobalt <br />mg /l <br />1.20 <br />0 <br />1.13 <br />106. <br />75 -125 <br />L571750 -08 <br />WG589680 <br />Magnesium <br />mg /l <br />63.2 <br />52.3 11.3 <br />2.89 <br />96.5 <br />75 -125 <br />L571750 -08 <br />WG589680 <br />_ <br />0.0229 <br />0.0227 <br />91.5 <br />59 -135 <br />_ <br />_ _ <br />L571637 -01 <br />9680 <br />Potassium <br />mg /1 <br />21.4 <br />10.2 <br />11.3 <br />99.1 <br />75 -1 25 <br />_ <br />L571750 -08 <br />WG589680 <br />Silver _ <br />mg /l <br />0.0899 <br />0 <br />1.13 <br />7.96* <br />75 -125 <br />L571750 -G8 <br />WG589680 <br />L571637 -01 <br />WG589579 <br />2- Butanone (MEK) <br />mg /l <br />0.134 <br />0.131 <br />107. <br />51- 149 <br />9680 <br />Vanadium <br />ma /l <br />1.15 <br />0 <br />1.13 <br />102. <br />75 -1 25 <br />L571750 -08 <br />WG589680 <br />Units MSD Ref %Rec Limit RPD Limit Ref Samo Batch <br />- <br />- <br />- - - _ - <br />- <br />9579 <br />1,1,1- Trichloroethane <br />mg /l <br />0.0242_ <br />0.0236 <br />96.8 <br />58- 137 <br />2.72 <br />20 <br />L571637 -01 <br />WG589579 <br />1,1,2,2- Tetrachloroethane _ <br />mg /l <br />0.0219 <br />0.0212 <br />87.6 <br />64 -149 <br />^0 <br />L571637 -01 <br />WG589579 <br />_ <br />_ <br />_3.27 <br />_ <br />9579 <br />1,1- Dichloroethane <br />mg /l <br />0.0_'44 <br />0.0234 <br />97.6 <br />58 -133 <br />4.10 <br />1_0 <br />__ <br />L571637 -01 <br />WG589579 <br />1,1- Dichloroethene <br />mg /1 <br />0.0246 <br />0.024^ <br />98.4 <br />32-152 <br />1.53 <br />20 <br />L571637 -01 <br />WG589579 <br />- - - <br />- <br />- <br />-- - - <br />- <br />- <br />-9579 <br />1,2- Dichlorobenzene <br />mg /1 <br />0.0239 <br />0.0232 <br />95.4 <br />75 -125 <br />2.89 <br />1-0 <br />L571637 -01 <br />WG589579 <br />1,2- Dichloroethane <br />mg /l <br />0.0229 <br />0.0227 <br />91.5 <br />59 -135 <br />0.840 <br />10 <br />L571637 -01 <br />WG569579 <br />9579 <br />1,4- Dichlorobenzene <br />mg /1 <br />0.0238 <br />0.0 -32 <br />9-0 <br />70 -123 <br />2.43 <br />20 <br />L571637 -01 <br />WG589579 <br />2- Butanone (MEK) <br />mg /l <br />0.134 <br />0.131 <br />107. <br />51- 149 <br />2.04 <br />22 <br />L571637 -01 <br />WG589579 <br />9579 <br />4- Methyl -2- pentanone (MIBK) <br />mg /1 <br />0.114 <br />0.108 <br />90.9 <br />53 -154 <br />4.93 <br />21 <br />L571637 -01 <br />WG589579 <br />Acetone <br />mg /l <br />0.164 <br />0.161 <br />131. <br />34 -146 <br />1.95 <br />L571637 -01 <br />WG589579 <br />9579 <br />Benzene <br />mg /1 <br />0.0242 <br />0.0235 <br />96.9 <br />51 -134 <br />3.23 <br />20 <br />L571637 -01 <br />WG589579 <br />Bromochloromethane <br />mg /1 <br />0.0240 <br />0.0232 <br />95.9 <br />67 -131 <br />3.36 <br />_ ^0 <br />L571637 -01 <br />WG589579 <br />_ 9579 <br />Bromoform <br />mg /l <br />0.0228 <br />0.0215 <br />91.1 <br />59 -137 <br />5.94 <br />20 <br />L571637 -01 <br />WG589579 <br />Bromomethane <br />mg /1 <br />0.0260 <br />104. <br />23 -17.7 <br />3.09 <br />21 <br />L571637 -01 <br />WG589579 <br />_0.0252 <br />9579 <br />Carbon tetrachloride <br />mg /l <br />0.0249 <br />0.0237 <br />99.7 <br />49 -140 <br />5.02 <br />20 <br />L571637 -01 <br />WG589579 <br />Chlorobenzene <br />mg /l <br />0.0239 <br />0.0237 <br />95.4 <br />69 -126 <br />0.890 <br />20 <br />L571637 -01 <br />WG589579 <br />9579 <br />Chlorcethane <br />mg /l <br />0.0279 <br />0.0267 <br />112. <br />32 -177 <br />4.60 <br />21 <br />L571637 -01 <br />WG589579 <br />Chloroform <br />mg /l <br />0.0246 <br />0.0236 <br />98.5 <br />64 -130 <br />4.39 <br />20 <br />L571637 -01 <br />WG589579 <br />9579 <br />cis -1,2- Dichloroethene <br />mg /l <br />0.0242 <br />0.0234 <br />96.8 <br />54 -137 <br />3.45 <br />20 <br />L571637 -01 <br />WG589579 <br />cis -1,3- Dichloropropene <br />mg /l <br />0.0233 <br />0.0229 <br />93.4 <br />63 -1 27 <br />2.07 <br />20 <br />L571637 -01 <br />WG589579 <br />9579 <br />Ethylbenzene <br />mg /l <br />0.0238 <br />0.0236 <br />95.4 <br />64 -135 <br />0.930 <br />20 <br />L571637 -01 <br />WG589579 <br />Iodomethane <br />mg /l <br />0.133 <br />0.132 <br />106. <br />38 -149 <br />0.450 <br />20 <br />L571637 -01 <br />WG589579 <br />9579 <br />Styrene <br />mg /1 <br />0.0 ^38 <br />0.0237 <br />95 3 <br />58 -152 <br />0.500 <br />20 <br />L571637 -01 <br />WG589579 <br />Tetrachloroethene <br />mg /l <br />0.0248 <br />0.0241 <br />99.2 <br />56 -139 <br />2.76 <br />20 <br />L571637 -01 <br />WG589579 <br />9579 <br />trans -1,2- Dichloroethene <br />mg /1 <br />0.0237 <br />0.0237 <br />94.9 <br />45 -137 <br />0.130 <br />20 <br />L571637 -01 <br />WG589579 <br />trans -1,3- Dichloropropene <br />mg /l <br />0.0234 <br />0.0228 <br />93.7 <br />59 -130 <br />2.51 <br />^0 <br />L571637 -01 <br />WG589579 <br />9579 <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 <br />of Analytes <br />with QC <br />Qualifiers.' <br />Page 20 of 23 <br />