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determinations for the Colorado pikeminnow, (Ptychocheilus lucius ,razorback sucker <br />(Xyrauchen tesanus), boneytail (Gila ele2ans), and humpback chub Gila cyyha)due to a 165.45 <br />ac/ft water depletion. USF&WS required Twentymile Coal Company to pay $2,102.87 to the <br />Recovery Program for this estimated 165.45 aclft water depletion. <br />In a memorandum dated August 5, 1997, (ES/OSM GJ-6-CO-97-F-014 CO/KS/NE/UT) the <br />USF&WS concurred with OSM's "may effect" determinations for the Colorado pikeminnow, <br />(Ptychoeheilus lucius ,razorback sucker (Xyrauchen texanus , boneytail (Gila ele ans ,and <br />humpback chub (Gila c2wha)due to a 134.89 ac/ft increase in water depletions for a new total <br />water depletion of 299.54 ac/ft. USF&WS required Twentymile Coal Company to pay an <br />additiona] $1,808.88 to the Recovery Program. <br />In a memorandum dated November 14, 1997, (ES/CO: OSM MS 65412 GJ) the USF&WS stated <br />it had no comments regarding Twentymine Coal Company's Permit Revision No. 4 since there <br />was no change in the previously consulted on water depletion. <br />As a part of the TR-59 permit application process Twentymile Coal Company revised their water <br />depletion estimates for the Foidel Creek mine to take into account water consumption associated <br />with [he increase in coal recovery from 10 million tons per year to 12 million tons per year, <br />changes mining operations and the operation of the new wash plant. Twentymile Coal Company <br />has provided the following consumptive use in acre feet per year for the remainder of the mine's <br />life at anticipated production levels with both washplants in full operation: <br />CateQOrv <br />Year <br />2007 2008 2009 2010 2011 2012 2013 <br /> <br />Coal Production (MM tons per year) 11.5 10.7 11.7 12.0 11.0 9.6 8.4 <br />Surface Moisture (Coal Shipments) 265.5 247.1 270.2 277.1 254.0 221.8 194.0 <br />Dust Control <br />Washdown Water <br />Evaporative Loss (Active Ponds) <br />Total Consumptive Use <br />17.7 17.7 17.7 17.7 17.7 17.7 17.7 <br />6.8 6.8 6.8 6.8 6.8 6.8 6.8 <br />14.0 14.0 14.0 14.0 14.0 14.0 14.0 <br /> <br />304.0 285.6 308.7 315.6 292.5 260.3 232.5 <br />Based upon Twentymile Coal Company's information the water depletions will peak in 2010 and <br />then decrease for the remainder of the mine's life. These figures show that the average annual <br />depletion will be 285.6 ac/ft per year through the end of the mine. <br />The USF&WS has previously determined that water depletions in the Upper Colorado River <br />System are a major source of impact to the endangered fish species. Continued water <br />withdrawals have restricted the ability of the Colorado River system to produce the flow <br />