Laserfiche WebLink
14.11 Surface Water Quality Data <br />Regionally, surface water flows from the Cresson Project area are tributary to the Upper <br />Arkansas River basin. At the Cresson Project, surface water would flow into Grassy Valley, a <br />tributary to Beaver Creek on the north side. Surface water would flow into Theresa Gulch and <br />Bateman Creek that are tributaries to Wilson Creek, which flows into Fourmile Creek on the <br />south. The drainages flowing west are Poverty Gulch, Squaw Gulch, and Arequa Gulch, from <br />north to south. These streams are all tributaries to Cripple Creek, which also flows into Fourmile <br />Creek. A discussion of surface water quality, including existing receiving stream standards, <br />where applicable, is contained in Section 4.6.1. of the Project Description and Appendix 2, <br />Volume II of this document. Drawing G -2 in Exhibit G shows the surface water rights for a two - <br />mile radius around the permit boundary. Section 4.6.1 and Appendix 2, Volume II contain flow <br />and water quality data for CC &V surface water monitoring stations. The data include at least <br />five successive calendar quarters. <br />14.12 Water Quality Monitoring Plan <br />A water quality monitoring plan for both surface and ground water is contained in Section 11.0 <br />of this Project Description. <br />14.13 Climate <br />Climatic data, including evaporation, mean annual precipitation, temperature, and average wind <br />direction, are provided in Section 4.11 of the Project Description. <br />14.14 Geochemical Data and Analysis <br />Information addressing the geochemical evaluation of the materials to be developed as part of <br />MLE2 is provided above in Section 4.5 of this Project Description and in Appendix 1, Volume <br />II. Prior studies have evaluated the acid - generating potential and acid - neutralizing potential of <br />sulfur oxidation of the rockmass within the District. The environmental effects of weathering of <br />overburden and exposed rock slopes were evaluated in detail by the performance of detailed <br />testing of rock samples from the District as described in Section 4.5 and Appendix 1, Volume II. <br />The 2011/2012 study updated the regional hydrology and geochemistry of MLE2. The study <br />focused on the evaluation of ground water flow and transport in Grassy Valley and the footprint <br />of the proposed redesigned ECOSA. <br />The geochemical evaluations have been conducted on rock samples from drilling throughout the <br />Cresson Project and from blast hole data, and is considered representative of the materials to be <br />mined, stockpiled or backfilled. The geochemical evaluations have also included an analysis of <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension 2 <br />14 -14 <br />