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TABLE 2-4 <br />CONSTITUENTS EXCEEDING CONCENTRATION LIMITS <br />SECOND QUARTER 2008 <br />FORWARD UNIT <br />Well ID <br />Constituent <br />Sample Result <br />Concentration <br />Limit Basis <br />Concentration <br />Limit <br />MW -01A <br />Bicarbonate <br />760 <br />UTL <br />390 <br />Calcium 140 CLGB <br />110 <br />Chloride 120 CLGB <br />97 <br />Chromium Hexavalent <br />0.0092 <br />PQL <br />0.0020 <br />Magnesium 70 CLGB <br />54 <br />Potassium 8.9 CLGB <br />8.6 <br />Sodium 100 CLGB <br />63 <br />Sulfate 100 UTL <br />84 <br />Total Dissolved Solids <br />910 <br />CLGB <br />800 <br />MW -02A <br />Sulfate <br />46 <br />UTL <br />45 <br />MW -03A <br />Arsenic <br />0.0021 <br />PQL <br />0.0020 <br />Barium 0.25 CLGB <br />0.24 <br />Bicarbonate 560 UTL <br />340 <br />Calcium <br />120 <br />CLGB <br />91 <br />Chloride <br />140 <br />CLGB <br />94 <br />Chromium Hexavalent 0.0041 PQL <br />0.0020 <br />Magnesium 58 CLGB <br />44 <br />Sodium <br />83 <br />CLGB <br />57 <br />Total Dissolved Solids 820 CLGB <br />600 <br />MW -10 <br />Arsenic <br />0.0035 <br />PQL <br />0.0020 <br />Bicarbonate <br />330 <br />UTL <br />220 <br />Chromium Hexavalent <br />0.0028 <br />PQL <br />0.0020 <br />MW -13 <br />Arsenic <br />0.0024 <br />PQL <br />0.0020 <br />Barium 0.59 CLGB <br />0.52 <br />Bicarbonate 940 UTL <br />675 <br />Chromium Hexavalent <br />0.0033 <br />PQL <br />0.0020 <br />Magnesium 83 CLGB <br />77 <br />Sodium 92 CLGB <br />82 <br />Strontium 1.8 CLGB <br />1.6 <br />Sulfate 46 UTL <br />32 <br />Total Dissolved Solids <br />980 <br />CLGB <br />880 <br />MW -14 <br />Arsenic <br />0.0022 <br />PQL <br />0.0020 <br />Bicarbonate 1200 UTL <br />785 <br />Magnesium 100 CLGB <br />95 <br />Strontium 2.2 CLGB <br />2.1 <br />Total Dissolved Solids 1200 CLGB <br />1100 <br />MW -15 <br />Bicarbonate <br />460 <br />UTL <br />355 <br />Chromium Hexavalent 0.0043 PQL <br />0.0020 <br />MW -16 <br />Barium <br />0.59 <br />BL <br />0.32 <br />Bicarbonate 800 BL <br />515 <br />Magnesium 75 BL <br />67 <br />Strontium 1.7 BL <br />1.6 <br />Total Dissolved Solids BL <br />983 <br />MW -17 <br />Calcium <br />100 <br />UTL <br />89 <br />Sulfate 77 UTL <br />67 <br />MW -18 <br />Arsenic <br />0.0030 <br />PQL <br />0.0020 <br />Chromium Hexavalent 0.0052 PQL <br />0.0020 <br />Sulfate 76 UTL <br />69 <br />MW -19 <br />hromium Hexavalent <br />039 <br />P L <br />5.5020 <br />MW -21 <br />Barium <br />0.42 <br />BL <br />0.32 <br />Bicarbonate 800 BL <br />515 <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 2Q88 T.1,1-1.24 CL <br />C <br />