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Table 1. Result of Quarterly Monitoring, GCC Rio Grande, Inc. Pueblo Cement Plant. <br />Sampling conducted October 26, 2010. - Continued <br />Anal to Method Units MW-002 MW-003 MW-004 Du -01 EB-01 <br />GENERAL CHEMISTRY <br />Total Alkalinity SM2320B m /L 314 425 830 393 NA <br />Bicarbonate SM2320B m /L 314 425 830 393 NA <br />Carbonate SM2320B m /L <5.0 <5.0 <5.0 <5.0 NA <br />Chloride E300.0 m /L 47.9 82.9 35.3 48.0 <0.50 <br />Fluoride SM450OF-C m /L 0.91 1.3 1.2 0.91 <0.20 <br />Sulfate E300.0 m /L 950 1,220 1,050 940 <0.50 <br /> <br />Ammonia as SM4500-NH3 m /L 0.16 <0.10 <0.10 0.17 NA <br />Nitrite as E300.0 M /L <0.12 <0.31 <0.12 <0.12 <0.061 <br />Nitrate as E300.0 M /L <0.09 3.1 1.3 <0.09 <0.45 <br /> <br />Total Cations Calculated Me /L 26.1 35.3 29.8 25.7 NA <br />Total Anions Calculated Me /L 27.4 36.4 39.5 28.8 NA <br />Cation-Anion Balance Calculated % Diff 2.5 1.7 14.1 5.6 NA <br /> NA <br />Total Hardness Calculated mg/L as CaC03 921 1,210 1,060 917 <1.8 <br />Total dissolved solids SM 2540C M /L 1,930 2,590 2,180 1,920 NA <br />2of3