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BARRING~R LABORATORIES, INC. 2 8 -Apr - 9 9 <br />Page: Q-3 <br />15000 W. 6TH AVE., SUITE 300 GOLDEN, CO 90401 (303) 277-1687 FA% (303) 277.1899 Job : 9 918 21 E <br />Status: Final <br />Banks and Gesso LLC <br />QUALITY CONTROL REPORT <br />Chloride Nitrate as N Nitrite as N Sulfate <br />Sample Id mgJl mg/1 mgJl mgjl <br />Blank U U U U <br />LCS (True) 25.0 12.5 12.5 75.0 <br />LCS (Found) 24.9 13.6 12.7 75.5 <br />LCS % Rec 99.7 109 102 101 <br />Duplicate 6.9 U U 5.1 <br />Duplicate 6.9 U U 5.1 <br />RPD 0.2 NC NC 0.3 <br />Spike % Rec 103 113 107 85.3 <br /> Phosphate Sulfite Su lfide TOC TDS <br /> Total Total <br />Sample Id mq/1 mg/1 m a/1 mg/1 ma/1 <br />Blank U U U U U <br />LCS (True) 0.530 6.37 20.0 10.0 1480 <br />LCS (Found) 0.531 6.00 20.8 10.4 1410 <br />LCS % Rec 100 94.2 104 104 95.3 <br />Duplicate 0.266 1 4.8 U 170 <br />Duplicate 0.276 1 6.4 U 163 <br />RPD 3.8 0.0 (4) NC 4.2 <br />Spike % Rec 99.4 94.2 84.0 123 NA <br /> Spec. Cond. pH <br />Sample Id µmh/cm uni t <br />Blank NA NA <br />LCS (True) 1410 7 .00 <br />LCS (Found) 1420 7 .02 <br />LCS % Rec 101 100 <br />Duplicate 836 8 .28 <br />Duplicate 822 8 .31 <br />RPD 1.7 0.4 <br />Spike % Rec NA NA <br />TICarbon <br />Total <br />mg/1 <br />U <br />10.0 <br />10.4 <br />104 <br />U <br />U <br />NC <br />123 <br />Alk-HC03 <br />HC03 <br />mg/1 <br />NA <br />2360 <br />2400 <br />102 <br />149 <br />149 <br />0.0 <br />NA <br />Alk-C03 <br />C03 <br />mg/1 <br />NA <br />2360 <br />2400 <br />102 <br />U <br />U <br />NC <br />NA <br />Meeting The Analytical Challenges Of•4 Chmt,~inQ )~'orltl Since /96! <br />