Wild Horse Freedom Federation researches public lands issues.
Regarding the Draft Environmental Impact Statement (DEIS) for McEwen Mining Inc.’s (MMI) Gold Bar Mine Project (Project)
Wild Horse Freedom Federation created the following maps:
Map # 1 – (Figure 4.23-11 of the DEIS) shows the Gold Bar Mine Wild Horse CESA (Cumulative Effects Study Area). On page 4-265 of the DEIS, it states “The CESA for the wild horses and burros includes Roberts Mountain, Whistler Mountain, and portions of the Fish Creek HMAs, as well as Kobeh Valley and Roberts Mountain HAs where wild horses exist based on past inventories, and where they could be potentially affected by the Project…”
Map 2 – has the approximate 10′ water drawdown area added – (Figure 4.19-3 of Gold Bar Mine Project), 500 gpm (gallons per minute) for 10 years.
Map 3 – added the approximate HMA and HA boundaries.
Map 4 – added approximate Mt. Hope Mine Project area and well field – (Figure 3.13.1 Mt. Hope Project EIS).
Map 5 – added the approximate Mt. Hope Mine 10″ water drawdown area – (Figure 3.2.18 Mt Hope Project EIS).
Map 6 – approximate sketch of Gold Bar Mine and Mt Hope Mine with HMA and HA boundaries
Map 7 – approximate HMA boundaries on grazing allotments map – (Figure 3.7 – 1, Gold Bar Mine EIS)
Map 8 – sketch of approximate mining, water drawdown, and grazing with the HMA and HA boundaries.
Per the Gold Bar DEIS, page 4-147, under 2 different scenerios, the mine will either pump 380 gpm (gallons per minute) or 500 gpm (gallons per minute).
If the mine pumps 380 gpm, this equals 22,800 gallons per hour, 547,200 gallons per day, and 199,728,000 gallons per year. Over 10 years, it will pump over 2 billion gallons of water.
If the mine pumps 500 gpm, this equals 30,000 gallons per hour, 720,000 gallons per day, and 262,800,000 gallons per year. Over 10 years, it will pump over 2 1/2 billion gallons of water.
This isn’t even counting the water the Mt. Hope mine will use once mining begins. Mt. Hope is projected to use 7,000 gallons per minute for the life of the mine (40-50 years).
This DEIS minimizes the impact on water resources by this mine by not providing 5’ or 1’ water drawdown maps, thus minimizing the area of land that will be effected. A stream can dry up with as little as 1’ of water drawdown.
Regarding little information available on the new BLM website (as of 4/15/17)