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Table 1. Result of Quarterly Monitoring, GCC Rio Grande, Inc., Pueblo Cement Plant. Sampling conducted October 20, 2009. <br />A ialyto Method ? Giiis Ba _`c S?cl.' :. 1\I??'?4(32 ?1??'-443 ?fl1'-604 D'1?P-01 t u©? ... <br />DISSOLVED ME TALS <br />Aluminum 200.7 ICP m /L 5.0(b) <0.10 <0.10 <0.10 <0.10 <0.10 <br />Barium 200.7 ICP m /L 2.0 0.0500 0.0340 0.0182 0.0445 <0.0020 <br />Beryllium 200.7 ICP m /L 0.004 0.00182 <0.00045 <0.00045 <0.00045 <0.00045 <br />Boron 200.7 ICP m /L 0.75(b) 0.157 0.204 0.348 0.146 <0.020 <br />Calcium 200.7 ICP m /L -- 262 407 326 254 <0.387 <br />Chromium 200.7 ICP m /L 0.1 <0.010 <0.010 <0.010 <0.010 <0.010 <br />Cobalt 200.7 ICP m /L 0.05(b) <0.0050 <0.0050 0.00585 <0.0050 <0.0050 <br />Iron 200.7 ICP m /L 0.3(a) <0.07 <0.070 <0.070 <0.070 <0.070 <br />Lithium 200.7 ICP m /L 233 0.0886 0.108 0.182 0.0746 <0.0020 <br />Magnesium 200.7 ICP m /L -- 79.0 116 150 72.1 <0.15 <br />Manganese 200.7 ICP m /L 0.05(a) 0.819 0.384 0.347 0.790 <0.0050 <br />Nickel 200.7 ICP m /L 0.1 <0.030 <0.030 <0.030 <0.030 <0.030 <br />Potassium 200.7 ICP m /L -- 6.28 3.19 6.41 5.49 <0.340 <br />Silver 200.7 ICP m /L 0.05 <0.030 <0.030 <0.030 <0.030 <0.030 <br />Silicon 200.7 ICP m /L -- 18.6 22.9 16.9 17.5 <0.107 <br />Sodium 200.7 ICP m /L -- 179 234 251 156 <0.400 <br />Vanadium 200.7 ICP m /L 0.1(b) <0.01 <0.01 <0.01 <0.01 <0.01 <br />Zinc 200.7 ICP m /L 5.0(a) <0.03 <0.03 <0.03 <0.03 <0.03 <br /> <br />Antimony 200.8 ICP-MS m /L 0.006 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <br />Arsenic 200.8 ICP-MS m /L 0.01 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <br />Cadmium 200.8 ICP-MS m /L 0.005 <0.00050 <0.00050 <0.00050 <0.00050 <0.010 <br />Copper 200.8 ICP-MS m /L 1.0(a) <0.010 <0.010 <0.010 <0.010 <0.0010 <br />Lead 200.8 ICP-MS m /L 0.05 <0.0010 <0.0010 <0.0010 <0.0010 <0.0020 <br />Selenium 200.8 ICP-MS m /L 0.05 0.00371 0.00496 0.107 0.00342 <0.00020 <br />Silver 200.8 ICP-MS m /L 0.05 <0.00020 <0.00020 <0.00020 <0.00020 <0.00100 <br />Thallium 200.8 ICP-MS m /L 0.002 <0.00100 <0.00100 <0.00100 <0.00100 <0.00002 <br />Mercury E245.1 CV-AA m /L 0.002 NA(*) NA NA NA NA <br />1. Colorado Basic Standard for Groundwater - Human Health, Secondary Drinking Water(a), and Agricultural(b) <br />4