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V <br />~, II <br />methods are wntained within the approved DMG permit application. Best management practices foi the <br />areas listed in Section 5 are described in detail below. <br />-Trailer and Topsoil Stockpile SAE I <br />The trailer pad and adjacent topsoil stockpile constitute a small disturbed area isolated from drainage <br />control access to the sediment pond. The existing approved runoff control for this area includes a stockpile <br />containment ditch, and berms and graveled road surfaces for the trailer pad. The topsoil has adequate <br />vegetation to limit erosion. In addition, the wntainment ditch is designed to contain the 10 year, 24;hour <br />storm event: Designs for the containment ditch are attached in Exhibit I. <br />The topsoil stockpile containment ditch and graveled road provide adequate stormweter sedim nt <br />control. The containment ditch and road , as designed and maintained, provide low potential for significant <br />adverse impacts to State waters. I i <br />-Mine Access Road (I-ower Section) <br />Storm runoff from the lower section of the mine access road (approximately 1130 feet length,; 20 <br />frat width) is not controlled under effluent limitations. Energy Fuels maintains a gravel surface on the 'toad, <br />snd maintains the road and associated ditches. The road has not ahowo indications of significant erosioa'pr <br />deposition of sediment to adjacent drainages. ~ i ~I <br />Storm runoff and sediment control are being provided by maintenance of the existing road surface. <br />The road access, as designed and maintained, affords low potential for significant adverse effects to~State <br />waters. I <br />-Sediment Pond Embankment Outslope <br />The mine site wntaios one sediment pond with an embankment and associated outslope. Ia ordento <br />control erosion and runoff from the pond embankment outslopes, embankment top and outslope have'I been <br />revegetated. I 'j <br />The total area of the pond embankment top and autslope is relatively smell end well vegetated. <br />Since no discharge other than stormwater runoff occurs from this area, and vegetative cover is maintained, <br />there is low potential for significant effects to State waters. <br />-Santa Fe Leases No. 1 and No. 2 <br />Storm runoff at the Santa Fe leases (3.32 acres total) is controlled by containing runoff in tliree <br />designed; non-discharging sumps. The sumps are designed to contain the runoff from the 10 year, 24' hour <br />event in the separate lease areas. Design calculations for the sumps and associated drainage control <br />structures ere included in Exhibit 1. ~ i <br />Energy Fuels is currently in process of completing final reclamation of both Santa Fe leases ~in <br />accordance with the DMG permit application. Concurrently, Energy Fuels is working with the DMG and;the <br />Santa Fe Railway Co. to verify and agree on post-reclamation drainage and sediment control. Any revisions <br />w the existing permit will be submitted to the Department of Health as an amendment request following <br />initial approval of any revisions by the DMG. <br />Given the small area and flat terrain of the railroad yards, and wmpaction of the yard surfaces, <br />there is low potential for significant adverse effects to State waters from storm runoff. ' . I <br />i <br />-Burlington Loadout Lease <br />The Burlington lease area is a small (3 acre) site with anon-discharging sump to control stn <br />runoff according to the DMG permit. This site has been completely reclaimed by Energy Fuels, notifieati'on <br />of which has been submitted to DMG as a request for full bond release. Since wmpletion of reclamation, <br />the.site'and adjacent lands have bcen purchased by the City of Trinidad. The City has completely re-worked. <br />the site in preparation for their plans for an industrial site. ''~~..1; <br />.'rp. . <br />,,~ ' <br />..t ~~a '$ <br />eti 4 3, r~~ <br />' r . f '~ti <br />1 ~ 1~ 1 <br />~~ 4 J ~ tit: <br />. n <br />.'iyUa}yrg t'. .. ..... <br />