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Second Submittal <br /> simulated, pre-mining loss rates for the ditches were 6.98, 2.57, and 6.02 cfs for the Little <br /> Cache la Poudre, Taylor and Gill, and Larimer and Weld ditches, respectively. Due to its <br /> distance from the Site, no impacts were predicted on the Larimer and Weld ditch. The <br /> simulated pre-mining discharge for the Callahan and Childer's drains were 0.93 and 5.37 <br /> cfs, respectively. <br /> Little Cache la Poudre Ditch <br /> The model predictions indicate that additional losses to the Little Cache la Poudre ditch are <br /> minimal during the first half of mining of Phase 1. This is primarily due to the"silting up <br /> of the ditch" (silt layer restricts flow into and out of the ditch). Personal communications <br /> with Jeff Smith, manager of the ditch at the time indicate that they measured inflow and <br /> outflow of the ditch as it passes through the Site. They did not measure any ditch losses at <br /> that time, corroborating the model predictions. The model shows that there is a potential <br /> to decrease the ditch loss by approximately 4% after reclamation because the pit liners <br /> reduce loss through the Site. <br /> Taylor and Gill <br /> Due to the drawdown downgrddient of the Site(south of 54G),the model predicts that there <br /> could be a potential increase in ditch loss of up to 7% (0.1 cfs). After reclamation, <br /> predictions are that the additional potential ditch loss is essentially zero(0.03 cfs). Because <br /> ditch losses were not measured, the accuracy of the predictions cannot be verified. <br /> However, given the small potential change in flows indicated,we do not anticipate that the <br /> Taylor and Gill will be impacted. <br /> Drains <br /> The model predicted the maximum reduction in the Callahan drain of 15.8% (0.14 cfs) to <br /> occur during Phases 1 through 3. After reclamation,the drain flow is predicted to increase <br /> by 2.1% (0.02 cfs). Given the small potential change in flows indicated, we do not <br /> anticipate that the Callahan drain will be significantly impacted. If flows do decrease <br /> significantly, dewatering water can be returned to the Taylor and Gill ditch to make up the <br /> reduction. <br /> Loveland Ready-Mix Concrete 20 Telesto Solutions,Inc. <br /> 20180112_gotaiawat�smdy_2iuisunimmtaI(1— January 2018 <br />