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Inorganic Concentration Limits vs. First Quarter 2009 Sampling Event Results <br /> Forward Landfill <br /> MW-01A M W-02A MW-03A MW-10 <br /> Parameter Feb-09 I CLGB UTL BL PQL Feb-09 CLGB UTL BL PQL Feb-09 CLGB UTL BLI PQL Feb-09 CLGB UTL BLI PQL <br /> Arsenic 0.0028 0.01 0.0026 0.0020 0.0031 0.0020 0.0042 0.0020 <br /> Barium 0.14 0.31 0.38 0.85 0.2 0.24 0.21 0.22 <br /> Bicarbonate 640 390 820 880 480 340 300 220 <br /> ME <br /> ,3 Y <br /> Chromium,Hexavalent 0.0058 0.0020 0.0014 0.0020 0.0066 0.0020 0.0029 0.0020 <br /> Magnesium 71 54 80 98 48 44 29 42 <br /> Nitrate 3.0 76 5.0 76 9.2 76 3.9 32 <br /> O <br /> Sulfate 81 84 41 45 50 62 38 48 <br /> Total Dissolved Solids 1000 800 980 1300 720 600 430 575 <br /> All concentrations are provided in mg/L. <br /> CLGB-Concentration Limit Greater Than Background(impact Constituents only). See Table 5-12 of Revised Post-Closure Maintenance Plan(11/2/94). <br /> UTL-Upper Tolerance Limit. See Table 5-15 of Revised Post-Closure Maintenance Plan(11/2/94). <br /> BL-Background Limit. Determined from historical data at MW-20 and MW-23R. (Mean+[2.375 x Standard Deviation]) <br /> PQL-Practical Quantitation Limit from current laboratory report. <br /> 647-February 2009 concentration exceeds the CLGB,UTL,BL,or PQL. <br /> Paof 4 <br /> ERST &OCIATES, INCA' <br />