2014-11-25_REVISION - M1979191 (22)

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y RECEIVED ec5 -'-/Nnv 2 5 2014 Jsj DIVISION OF RECLAMATION 1. Lhibit G - Water Information MINING AND SAFETY 1.1 Introduction The Three Bells Mine operation is not expected to directly affect surface water or groundwater. The mining is relatively shallow, typically to a depth of approximately 20 feet below ground surface. Impact to groundwater will be minimal along the west side of the existing mine, west of the Cache la Poudre River. Any depletions to the Cache la Poudre River that are associated with mining are currently mitigated to prevent injury to the vested senior water rights by having an approved Temporary Substitute Water Supply Plan in place. This plan will remain in effect until the liners have been certified or backfilling is complete and there is no longer a need for processing water. No toxic or hazardous chemicals or liberating agents are used for mineral extraction. Estimated water requirements for the project vary depending on several factors including season and precipitation. Projected water usage estimates range from 75,000 - 900,000 gallons per month. Monthly water usage and future estimates provided by Martin Marietta (MM) are shown in Table 4. Table 1: Three Bells Makeup Water Month Wash Water (gallons) Water for Dust Control and Construction (gallons) September 2013 - 850,000 October 2013 - 600,000 November 2013 - 250,000 December 2013 - 150,000 January 2014 - 75,000 February 2014 - 75,000 March 2014 - 800,000 April 2014 - 800,000 May 2014 136,560 800,000 June 2014 131,040 900,000 July 2014 163,200 900,000 August 2014 115,920 900,000 September 2014 105,120 850,000 October 2014 193,920 600,000 November 2014 181,920 250,000 December 2014 110,400 150,000 January 2015 72,000 75,000 February 2015 132,000 75,000 March 2015 132,000 800,000 April 2015 144,000 800,000 May 2015 180,000 800,000 June 2015 180,000 900,000 July 2015 180,000 900,000