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According to the most current FEMA Flood Plain Map (reference FEMA Map #08-335A-080075-Pg. 12) the <br />proposed site is not within a flood plain. <br />There is no surface water present directly at the site. The potential impacts to surface waters are managed through <br />the Stormwater and BMP plan described above (attached in this appendix). The proposed removal and offsite <br />processing, of the existing waste rock dumps of the Clear Creek watershed will significantly lower the potential for <br />pollution to surface water and groundwater in the vicinity of this project. <br />6.3.3(1)(j) <br />The US EPA and the CDPHE are currently doing extensive monitoring of ground water sources (as stated earlier, <br />The Argo Tunnel drainage is monitored, collected, and treated at the Argo Tunnel Treatment Facility located in <br />Idaho Springs). <br />There are no known domestic wells or springs downgradient of the site (reference CO Div. of Water Resources map <br />attached). Groundwater flow beneath the site is controlled by mine openings as discussed above in 6.3.3(1)(i). <br />As described earlier in 6.3.3(1)(h), water for the operations is obtained from the municipal water supply of the City <br />of Idaho Springs via a "Water Fill Station Usage Permit". <br />6.3.3(1)(k) <br />There will be NO designated chemicals used in this proposed operation. NO processing is done at this location. <br />There will be, however, small scale handling of potentially acid forming material in the form of abandoned mine <br />waste rock. There are carefully designed and managed measures in place to limit exposure and contamination. <br />Within the Affected Area there pre-exists approximately 1,000 tons of abandoned mine waste rock. This operation <br />will be removing this material and processing offsite to remove trace precious metal content as well as heavy metal <br />contamination. To mitigate any acidic runoff, best management practices within the proposed Affected Area will be <br />conducted as follows (see more detailed SWMP in the appendix of this Exhibit C and Exhibit E): <br />• Install perimeter silt fences. <br />• Staged excavation and removal of waste rock dump. <br />• Re-grade site. <br />• Re-vegetate site using appropriate controls, i.e. biodegradable netting and/or hydro-mulch using specified <br />NRCS seed mix (see Exhibit D). <br />Due to the remote nature of the site location, visual nuisance impact to the public is minimal if not non-existent. <br />The site cannot be readily seen from any major public roadways. The waste has no adverse odor. Because of the <br />short project duration, there is very limited noise pollution. Heavy equipment and truck traffic will result in a <br />maximum of transporting ten load-outs per day, during the daylight hours. <br />6.3.3(1)(1) <br />Please refer to 6.3.3(1)(i), 6.3.3(1)0), and Exhibit D for a detailed explanation of how this operation will minimize <br />disturbance to the hydrologic balance, prevent off-site damage, and provide a stable configuration of the reclaimed <br />area. <br />6.3.3(1)(m) <br />There will be NO mineral processing conducted on-site within this Affected Area. ALL material is pre-existing and <br />will be removed to an offsite location for processing: Venture Resources' Hukill Gulch Millsite in Clear Creek <br />County - DRMS Permit 4M-2009-076. <br />Page 6 of 8