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To: Jared Ebert <br />Date: February 14, 2018 <br />Page 7 <br />RULE 6.4.7 EXHIBIT G — WATER INFORMATION <br />Comment 28a <br />LRM did not include an estimate of the consumptive use of water for the office and batch <br />plant because municipal water will be used for this. However Rule 6.4.7(3) and (4) <br />requires an estimate of the annual volumes of water to be used for these facilities and a <br />projected amount from each of the sources of water to supply the project. Please provide <br />this information. <br />Response 28a <br />LRM utilized a dynamic systems model (DSM) to evaluate its water requirements over <br />the 10-year anticipated life of the Knox Pit. The consumptive use results of this model <br />are documented in the request for a substitute supply plan from the Colorado Division of <br />Water Resources(DWR, Attachment 8). <br />Comment 28b <br />Upon review of Attachment 8 the consumptive use for the office and batch plant could not <br />be found. Please provide an estimate of the annual volumes of water to be used for these <br />facilities and a projected amount from each of the sources of water to supply the project. <br />Response 28b <br />The estimated annual use for inside the offices and batch plant is 45,000 gallons. Water <br />consumed in bathrooms and sinks only. The source of the water will be an existing tap <br />from the West Fort Collins Water District. <br />Water for batching concrete will come from the water management pond, it is estimated <br />to be 20 ac-ft per year and will be supplied through the substitute water supply plan <br />referenced in Response 28a. <br />Comment 29a <br />How has the water management pond been sized to provide adequate infiltration for the <br />constant incoming volume of water from dewatering discharge?Is there enough capacity <br />to account for increased pumping volumes if the Little Cache La Poudre Ditch leaks <br />during periods offlow?Please provide documentation to substantiate your response. <br />Response to DRMS Adequacy Review 3 comments T E L E S T O