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Ground water monitoring began in September 1999 and continued on a monthly <br />frequency for 15 months to provide baseline data that would characterize the <br />aquifers prior to commercial mining activity. Following the beginning of <br />commercial operations in October 2000, the monitoring program continued on a <br />monthly basis and to date includes over 15 operational quarters of ground water <br />data from each sampling location. <br />The following table shows the current constituents included in the ground water <br />monitoring program, the EPA method used for the analysis, the regulatory <br />standard from Regulation 41 and the classification of the standard from the <br />regulation. The ground water monitoring constituent list is provided in Table 2. <br />"'"'"""'"'' Standard <br />Method Standard from Classification <br />o,,,.,,~.,~,,,., ~, <br />Iron, dissolved M200.7 ICP 0 3 <br />Manganese, dissolved M200.8 ICP-MS <br />Selenium, dissolved <br /> <br />0 O5 <br /> <br />0.002 Secondary Drinking <br />Water <br />Human Health <br /> <br />0.1 Human Health <br /> <br />0.02 ~ Agricultural <br />---- L _-------------- <br />0.05 <br />I _ Human Health <br /> <br /> <br />