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TABLE 2-4 <br /> CONSTITUENTS EXCEEDING CONCENTRATION LIMITS <br /> FIRST QUARTER 2009 <br /> FORWARD UNIT <br /> Well ID Constituent Sample Result Concentration Concentration <br /> Limit Basis Limit <br /> MW-01A Bicarbonate 640 UTL 390 <br /> Calcium 140 CLGB 110 <br /> Chloride 180 CLGB 97 <br /> Chromium Hexavalent 0.0058 PQL 0.0020 <br /> Magnesium 71 CLGB 54 <br /> Sodium 95 CLGB 63 <br /> Total Dissolved Solids 1000 CLG13 800 <br /> ___9W-_0TA_ Arsenic 0.0026 0.0020 <br /> MW-03A Arsenic 0.0031 PQL 0.0020 <br /> Bicarbonate 480 UTL 340 <br /> Calcium 98 CLGB 91 <br /> Chromium Hexavalent 0.0066 PQL 0.0020 <br /> Magnesium 48 CLGB 44 <br /> Sodium 70 CLGB 57 <br /> Total Dissolved Solids 720 CLGB 600 <br /> MW-10 Arsenic 0.0042 PQL 0.0020 <br /> Bicarbonate 300 UTL 220 <br /> Chromium Hexavalent 0.0029 PQL 0.0020 <br /> MW-13 Arsenic 0.0028 PQL 0.0020 <br /> Barium 0.56 CLGB 0.52 <br /> Bicarbonate 830 UTL 675 <br /> Chromium Hexavalent 0.0030 PQL 0.0020 <br /> Sodium 93 CLG13 82 <br /> Strontium 1.7 CLGB 1.6 <br /> Sulfate 45 UTL 32 <br /> Total Dissolved Solids 980 CLGB 880 <br /> MW-14 Arsenic 0.0033 PQL 0.0020 <br /> Bicarbonate 920 UTL 785 <br /> Chromium Hexavalent 0.0049 PQL 0.0020 <br /> Tetrachloroethylene 0.97 PQL 0.50 <br /> Bicarbonate 390 UTL 333 <br /> MW-16 Barium 0.51 BL 0.32 <br /> Bicarbonate 660 BL 530 <br /> MW-17 Calcium 110 UTL 89 <br /> Magnesium 49 UTL 47 <br /> Sulfate 76 UTL 67 <br /> MW-18 Arsenic 0.0036 PQL 0.0020 <br /> Chromium Hexavalent 0.0042 PQL 0.0020 <br /> Sulfate 71 UTL 69 <br /> Chromium Hexavalent 0.0035 PQL 0.0020 <br /> Notes: <br /> CLGB=Concentration Limit Greater Than Background. <br /> CLGB=Taken from Table 5-12 of Revised Post-Closure Maintenance Plan,Forward Landfill,by Kleinfelder,dated 11/2/94. <br /> UTL=Upper Tolerance Limit. <br /> UTL=Taken from Table 5-14 of Revised Post-Closure Maintenance Plan,Forward Landfill,by Kleinfelder,dated 11/2/94. <br /> PQL=Practical Quantitation Limits. <br /> BL=Background Limit derived from historical data at MW-20 and MW-23R. Mean+(2.375 x Standard Deviation). <br /> FLF IQ09 Tables h24 CL <br />