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Site Reclamation Activity <br />April 2005 - March 2006 <br />Page 6 <br />MONITORING - Discussion of Water Quality Monitoring Results <br />1) Mayflower Millsite area <br />The Animas River monitoring results continue to exhibit <br />increased zinc and manganese concentrations between <br />upstream and downstream monitoring points although the <br />differential appears to have been reduced as a result of the <br />completed diversions and reclamation projects. The <br />differential for zinc was not significant in the early sample <br />event. <br />EOMW1 and EOMW2 results were at or below levels of metals <br />observed in the past. Zinc results were somewhat elevated in <br />the early sample event, possibly due to the power plant <br />tailings removal project. <br />2) American Tunnel area <br />Cement Creek monitoring reflects some improvement due to the <br />effect of the water treatment plant through September 2004 <br />when the plant was operated by Gold King. After that time the <br />concentrations are similar with some elevation between the <br />upstream and downstream points. <br />The seep ATS2, originally from the toe of the American Tunnel <br />waste dump, has either relocated or dried up. The seep ATS1 <br />appears to have disappeared or relocated due to the <br />reclamation of the waste dump. <br />3) Terry Tunnel/Lake Emma <br />Eureka Creek monitoring above the Terry Tunnel continues to <br />show the same level of concentrations, compared to previous <br />years. <br /> <br />