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The monitoring schedule for the lysimeter installation will be to sample on a monthly <br />basis as long as adequate sample quantities can be collected, to establish a baseline set of <br />data. Following the initial collection efforts sampling maybe reduced to a quarterly basis <br />depending on the concentrations of the potential contaminants in the samples. <br />Also included with this information is a report from GeoScience Services titled "The role <br />of fractures in unsaturated transport". This report discusses how the faults and fractures <br />in the area of the JD-6 mine waste dump should limit the transportation of potential <br />contaminants from the mine waste material. <br />If you have further questions regazding these issues, please call Glen Williams, Manager, <br />at Cotter's Nucla office, 970-864-7347. <br />Respectfully, <br />Dick White, Project Geologist <br />Cotter Corporation <br />G~ ~~~ <br />JD-6 geo_lsup - 3 - <br />