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Table 1. Result of Quarterly Monitoring, GCC Rio Grande, Inc. Red Rock Plant and Limestone Mine. Sampling conducted March 25, <br />2008. - Continued <br />Ana a Method Units MW-002 MW-003 MW-004 DW-001 DW-002 Du -01 <br />GENEAL CHEMISTRY <br />Total Alkalinity SM2320B m /L 266 270 405 211 208 211 <br />Bicarbonate SM2320B tn/L 266 270 405 211 208 211 <br />Carbonate SM2320B m /L <5 <5 <5 <5 <5 <5 <br />Chloride E300.0 m /L 26.9 35.6 39.6 13.2 12.9 12.7 <br />Fluoride SM450OF-C m /L 0.59 1.1 0.92 1.3 1.1 1.1 <br />Sulfate E300.0 tn/L 657 995 1,350 291 288 286 <br /> <br /> <br />Ammonia as SM4500- <br />NH3 mg/L <0.80 <0.80 <0.80 <0.80 <0.80 <0.80 <br />Nitrite as E300.0 m /L <0.12 <0.12 <0.31 <0.06 <0.061 <0.061 <br />Nitrate as N E300.0 m /L <0.090 <0.090 5.71 <0.045 <0.045 <0.045 <br /> <br />Total Cations Calculated Me /L 19.75 27.12 37.7 10.6 10.3 10.3 <br />Total Anions Calculated Me /L 18.0 25.7 33.4 9.97 10.5 10.5 <br />CationAnion Balance Calculated % Diff 4.5 2.6 6.0 3.3 0.76 0.79 <br /> <br />Total dissolved solids SM 2540C m /L 1,260 1,830 2,420 639 639 647 <br /> <br />Asbestos <br />TEM' Asbestos <br />structures/L None <br />found None <br />found None <br />found None <br />found None <br />found None <br />Found <br />1 = Transmission Electron Microscopy <br />2 of 3