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BASELINE GROUNDWATER QUALITY DATA <br /> 1. Groundwater Baseline Quality and Quantity Data <br /> Peak Materials has gathered data from 11 monitoring wells located around the property. This <br /> data shows the baseline groundwater condition within the alluvial aquifer of the Blue River. The <br /> locations of the sampled and measured wells can be found on Figure 1, below. One is located at <br /> each corner of the mining area and one is located near the entrance. In particular, GW-2 and P1 <br /> through P-6 are located adjacent to the wetlands to allow for monitoring of the water level near <br /> the wetlands throughout mining operations. The depth from the top of casing to groundwater for <br /> each well is shown in Table 1,below. Water quality data can be seen in Table 2,below. The <br /> depths are based on the static water level from each well that were measured during sampling of <br /> the wells. Quality data sampled is based on typical analytes evaluated by the Colorado Division <br /> of Reclamation, Mining, and Safety during their review of Designated Mining Operation <br /> permits. These permits are typically metal mines with a risk of toxic or acid producing materials; <br /> the Peak Ranch Resource operation does not pose this risk. These sampling was conducted to <br /> thoroughly establish the groundwater baseline for the site and to allow for long-term water <br /> quality and water level monitoring at the site in order to determine if gravel pit operations have <br /> impacted the alluvial aquifer. <br /> Four quarters of data(Q2-4 2019, Q-2 2020)have been collected. Q1 2020 sampling was unable <br /> to occur due to lack of access from snow cover on the ranch and the stay-at-home order <br /> mandated by the Governor of Colorado. The groundwater wells will continue to be monitored for <br /> water depth to improve the operator's knowledge of the water table onsite during operations. <br /> Monitoring well installation reports and ACZ Labs sample results can be found at the end of this <br /> Appendix. Figure 1 shows the well locations. Table 2 shows a summary of the well sample <br /> results. <br /> Peak Ranch Resource HERESOURCE <br /> July 2020 N 1 E E i N � <br />