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nickel, selenium, and silver in the ground waters at GRMW -1A, GRMW -2A, and <br />GRMW -3A were less than the analytical detection limits. The median concentration of <br />arsenic at GRMW -1A was above the analytical detection limit, but low. Trace metal data <br />also are provided in Tables 5 -9, 5 -10, and 5 -11. <br />5.3.4.4 MLE2 Impacts to Ground Waters <br />No impacts are anticipated to the ground water resources in the Gold Run drainage due to <br />MLE2. Water level and water quality conditions at GRMW -1A, GRMW -2A, and <br />GRMW -3A are expected to remain consistent with historic measurements. <br />The ground water levels and water quality conditions in the Gold Run drainage will <br />continue to be monitored by GRMW -1A, GRMW -2A, and GRMW -3A. <br />5.4 Arequa Gulch <br />5.4.1 Current Conditions <br />The Arequa Gulch drainage and MLE permit boundary are shown on Figure 2 -1. Arequa <br />Gulch is a west - oriented, ephemeral drainage. Arequa Gulch drains into Cripple Creek <br />approximately 5,250 feet west of the AGVLF. <br />The current Cresson Project disturbance in the Arequa Gulch drainage consists of the <br />AGVLF, the AGADR, and other infrastructure. Operation of the AGVLF will continue <br />through approximately 2032 under MLE. The existing EMPs that collect and dissipate <br />storm water runoff are shown on Figure 2 -1. <br />The boundary between the Diatreme and the surrounding granites passes through the <br />Arequa Gulch drainage and is shown on Figure 2 -2. <br />5.4.2 Mine Life Extension 2 <br />MLE2 does not propose to construct any new or expand any existing facilities in the <br />Arequa Gulch drainage. The EMPs will continue in MLE2. The disturbance limits and <br />the proposed facilities for MLE2 across the Cresson Project are shown on Figure2 -2. <br />'Cripple Creek & Victor Gold Mining Company <br />Cresson Project Hydrologic Evaluation for Mine Life Extension 2 <br />23 <br />