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1. SAMPLING AND ANALYSIS PLAN <br />A sampling and analysis plan has been developed for groundwater monitoring at the JD -9 Mine. <br />Presently, there is a monitoring well downgradient from the current mine workings and a lysimeter at the <br />site. To date, no water has been recovered from the lysimeter indicating that and conditions at the site are <br />inadequate to recharge the waste rock pile. Water quality analysis from the existing monitoring well has <br />previously been submitted to the DBMS. <br />As part of the permitting process, the DRMS has required the installation of two additional monitoring <br />wells, one upgradient of the mine workings and one at the downgradient boundary to determine the <br />presence of groundwater and quantify water quality. <br />This plan provides details on the well locations and construction, sampling methods and schedules, as <br />well as the chemical constituents that will be selected for analysis. <br />1.1 Groundwater Monitoring Program <br />1. L I Monitoring Well Locations <br />Cotter proposes to install two new monitoring wells at the JD -9 site to comply with DRMS regulations. <br />One monitoring well will be located upgradient of the underground workings and a second monitoring or <br />compliance well will be located downgradient of the southernmost proposed mine workings near the DOE <br />lease boundary. Currently, there is a monitoring well that has been sampled for several years and the <br />results have been reported to the DRMS and are included in the permit application. <br />The monitoring wells will be located in the Salt Wash Member of the Morrison Formation. There is no <br />indication that the Salt Wash Formation provides reasonable quantities of water and the limited amount of <br />water is generally of low quality and has no economic value. <br />The proposed well locations are shown in Figure 1. The locations are based on the geologic structural <br />contour map for the region based on the assumption that groundwater flow is controlled by the dip of the <br />bedrock. The upgradient well is up dip of the mine workings that have encountered groundwater and <br />have the potential to impact the limited resource in the area. This well will provide background water <br />quality for the Salt Wash Formation. The second monitoring well will be placed near the property <br />boundary downgradient of the southernmost proposed underground workings. Once again, it is expected <br />that if groundwater is encountered it will be in low quantities. <br />All monitoring wells would be permitted through the Colorado Division of Water Resources and will be <br />drilled, completed, and developed in accordance with standard environmental protocols for monitoring <br />well construction following the approval of the JD -9 Mine Permit Amendment. <br />The wells will be completed in the Salt Wash Formation just below the corresponding elevation as the <br />groundwater encountered in the mine. The groundwater zone coincides with the mineralized zone that <br />can be identified during drilling by the cuttings. This same approach was used to identify water bearing <br />zones in the existing monitoring well. <br />