2019-09-10_REVISION - C1994082 - Laserfiche WebLink

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big-game proof fence enclosures. These enclosures where required by permit conditions during the ten-year liability term. Prior to final bond release the gates to the plots will be opened to demonstrate the shrubs can withstand the existing wildlife and livestock foraging pressure. SEDIMENT PONDS Permanent pond demonstrations have been approved for three of the five remaining sediment ponds. The three sediment ponds that have CDRMS and the State Engineers Office (SEO) approval include ponds 10, 13, and 14. SPL plans to get approval on the remaining sediment ponds to leave them as permanent features as well. The three permanent ponds meet the criteria specified under Rule 4.05.9(13) and will be used to support the post mining land use. The permanent pond demonstration can be found in Appendix 20-1.2 of the approved mine PAP. STOCK PONDS Within the Yoast permit area there are two ponds that have been specified as "Stock Ponds", ST- 1 and 11A. Both of these stock ponds have been approved through the CDRMS and the SEO to remain as permanent features. They each have a storage capacity of less than two-acre feet and an embankment no greater than five feet high measured from the invert of the spillway to the upstream toe of the embankment. The permanent pond demonstrations for these stock ponds can be found in Appendix 20-1.2 in the approved mine PAP. MISCELLANEOUS BOUNDARY AND GRAZING FENCES There are a variety of fences throughout the Yoast Mine permit area.All of the current fences will remain as permanent features following final bond release. These fences delineate property boundaries,and grazing areas.The fences support reclamation success along with post mining land use. HYDROLOGY *All Tables,Figures, and Attachments referenced in the below Hydrology discussion are located in Attachment I. Water Quality data Phase II - Suspended Solids Evaluation SL-7 - 31