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circumneutral, and sulfate and total dissolved solids is typically above the US <br /> Environmental Protection Agency's(EPA's) secondary drinking water standard. Past and <br /> contemporary agricultural activities and septic/municipal discharges in the area are <br /> evidenced by the average nitrate values above the 10 mg/L drinking water standard. Figure <br /> 7 shows the Site in comparison to the measurements reported by Flynn (2003). Shallow <br /> agricultural wells in the region reported uranium concentrations ranged from 0.13 to 146 <br /> p.g/L with a median of 6.8 µg/L and a 19% exceedance of standards (Musgrove, 2014, p. <br /> Table 5). <br /> 1.3 Objectives <br /> The overall objectives of this report are to: <br /> • Provide a thorough description of the Site's baseline water quality <br /> • Form a technically defensible prediction of groundwater quality impacts <br /> associated with mining, and future pit closure and reclamation <br /> Additionally, the intent of this report is to address a recommendation by DRMS to show <br /> how LRM's activities might influence sources that contribute to background or baseline <br /> groundwater quality. <br /> 1.4 Approach <br /> The overall approach to meeting the report objectives are threefold: <br /> 1. Describe data collected to date <br /> 2. Identify any COCs in site data that could potentially exceed WQCC standard in <br /> LRM's discharge(i.e., WMP) <br /> 3. Develop a robust, quantitative description of the baseline water quality and <br /> evaluate potential water quality changes in the water management system <br /> 1.4.1 Data Collection <br /> Well completion logs for each of the 14-site monitoring well are included in Appendix B. <br /> Telesto conducted quarterly water quality sampling on wells MW-02, MW-06, MW-10, <br /> MW-12, and MW-13 from February 2018 to present per the sampling and analysis plan <br /> (Appendix A). Initial sampling in the norther portion of the Site indicated alluvial water <br /> Loveland Ready-Mix Concrete 4 December 2019 <br /> � <br /> ,02 ,o,_ <i,_ l„e„e 9..hnsumsummon does T E L E S T O <br />