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Brock Bowles <br />Page 4 of 8 <br />December 12, 2014 <br />Rule 2.05.6(3)(b)(i) and (ii): Sections 2.05.3(4) and 2.05.6(3) and Appendices 2.05.3(3) -1, 2.05.3(4)- <br />1, 2.05.3(4) -6, and 2.05.3(4) -7 of the approved permit application package detail the plan for <br />control of surface water drainage into, through and out of the permit area. Surface water running <br />into and across the disturbed area will be treated in one of three proposed sedimentation ponds to <br />be constructed to treat drainage leaving the permit area. <br />Rule 2.05.6(3)(b)(iii): A determination of the probable hydrologic consequences is presented in <br />Section 2.05.6(3) and Appendix 2.05.6(3) -2 of the approved permit application package. WFC has <br />predicted that total dissolved solids (TDS) will increase in Tuttle Draw, but the increase is not <br />expected to negatively impact the hydrologic regime and the quality and quantity of surface water <br />systems in and adjacent to the operation. The permit application package, on page 24 of Section <br />2.05.6(3), states that water infiltration into backfilled spoil material will likely result in the <br />development of spoil springs. Discharge from those spoil springs is expected to be high in TDS, and <br />will remain so for about 350 years. WFC predicts that when spoil spring TDS is at its highest <br />projected concentration, there will be an increase in TDS in Tuttle Draw, during the non - irrigating <br />season, from 2244 mg /I to 2270 mg /I. <br />Rule 2.05.6(3)(b)(iv): The proposed surface water monitoring plan is presented in Appendix <br />2.05.6(3) -3 of the approved permit application package. The monitoring plan is adequate to verify <br />the prediction of probable hydrologic consequences and to determine whether there are any <br />impacts from the operation on the hydrologic balance. The 2012 and 2013 Annual Hydrology <br />Reports submitted by WFC indicate that the required surface water monitoring has been <br />conducted. The data provided in the 2012 report will supplement the baseline information in the <br />permit application; the 2013 report includes data collected after commencement of surface mining <br />activities at the site. <br />Rule 2.05.6(3)(b)(v): Appendix 2.05.6(3) -2 includes proposed preventive and remedial measures to <br />prevent material damage and minimize hydrologic impacts. Preventive measures (treatment of <br />surface water in proposed sedimentation ponds) have been implemented; monitoring data to date <br />does not indicate any negative impacts to the hydrologic balance or any need for remedial <br />measures. <br />Rule 2.05.6(3)(b)(vi): The location of each water diversion, collection, conveyance, treatment, <br />storage, and discharge facility to be used within the permit area is discussed in Section 2.05.3(4) <br />and Figures 1 through 7 of Appendix 2.05.3(4) -1, page 16 of Appendix 2.05.3(4) -7, and depicted on <br />Maps 2.05.3(4) -1, 2.05.3(4) -6, 2.05.3(4) -7, and 2.05.3(4) -8. <br />Rule 4.04 Support Facilities <br />