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JOESC <br />t•A-9 S•C•I•E•N•C•E•S <br />Molen & Associates, LLC <br />Mark Molen <br />2090 East 104th Avenue Suite 4205 <br />Thornton, CO 802 23 <br />Quality Assurance Report <br />Level II <br />L571648 <br />122065 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 Result Units % Rec Limit Batch Date Analvzed <br />8:48 <br />Mercury < .0002 mg /l WG589637 04/26/12 19:52 <br />Alkalinity < 20 mg /l WG589687 04/ 27/12 08:19 <br />9:06 <br />Specific Conductance 1.88 umhos /cm WG589825 04/28/12 11:39 <br />pH 4.56 su WG589790 04/ 28/12 10:02 <br />Page 14 of 23 <br />8:40 <br />Arsenic <br />_ <br />< .001 <br />mg /l <br />WG589816 04/30/12 08:40 <br />Beryllium <br />< .001 <br />mg /1 <br />WG589816 04/30/12 08:40 <br />8:40 <br />Copper <br />< .002 <br />mg /l <br />WG589816 04/30/12 08:40 <br />Lead <br />< .001_ <br />mg /l <br />WG589816 04/30/12 08:40 <br />_ <br />8:40 <br />Thallium <br />_ <br />< .001 <br />mg /l <br />WG589816 04/30/12 08:40 <br />Zinc <br />< .01 <br />mg /1 <br />WG589816 04/30/12 08:40 <br />Barium <br />< .005 <br />mg /l <br />WG589680 05/02/12 11:31 <br />Calcium <br />< .5 <br />mg /l <br />WG589680 05/02/12 11:31 <br />1:31 <br />_ <br />Cobalt - <br />.01 <br />mg /l <br />WG589680 05/02/12 11:31 <br />Magnesium <br />- - <br />< .1 <br />- <br />- <br />mg /1 <br />- <br />- - <br />- - -- <br />WG589680 05/02/12 11:31 <br />i- <br />-- 1:31 <br />Potassium <br />< .5 <br />mg /1 <br />WG589680 05/02/12 11:31 <br />Silver <br />< .01 <br />mg /l <br />WG589680 05/02/12 11:31 <br />_ <br />_ _ _ <br />1:31 <br />Vanadium <br />< .01 <br />mg /l <br />WG589680 05/02/12 11:31 <br />Analyte <br />Units <br />Result <br />Duplicate <br />RPD <br />Limit <br />Ref Samp Batch <br />- 9475 <br />Chloride <br />mg /1 <br />60.0 <br />54.0 <br />10.5 <br />20 <br />L571615 -01 WG589475 <br />Chloride <br />mg /l <br />210. <br />210. <br />0.477 <br />20 <br />L571227 -02 WG589475 <br />Alkalinity <br />mg /l <br />180. <br />190. <br />7.08 <br />L571637 -01 WG589597 <br />Alkalinity <br />mg /l <br />160. <br />160. <br />3.17 <br />20 <br />L571637 -03 WG589597 <br />TOC (Total <br />Organic Carbon) <br />mg /l <br />2.10 <br />2.20 <br />2.76 <br />20 <br />L5714 26 -01 WG589539 <br />TOO (Total <br />Organic Carbon) <br />mg /l <br />3.20 <br />3.30 <br />2.14 <br />20 <br />L571637 -02 WG589539 <br />Mercury <br />mg /l <br />0 <br />0 <br />0 <br />20 <br />L571637 -01 WG589637 <br />* Performance of this Analyte <br />is outside of <br />established <br />criteria. <br />For <br />additional information, <br />please see Attachment <br />A 'List <br />of Analytes <br />with <br />QC Qualifiers.' <br />Page 14 of 23 <br />