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locations to minimize the disturbance at each site. For instance, sites along steeper <br />slopes will be longer and narrower, taking advantage of space created along the <br />access road. Also, where possible, the access road and/or site(s) will be moved or <br />adjusted to avoid large well-established stands of mountain shrubs or aspen. <br />In general, all drill site locations will be cleared and grubbed. Topsoil will be <br />removed and stockpiled before the site is leveled. Shallow foam or mud pits will be <br />dug to detain drilling fluids and possibly precipitation runoff from the drill site. <br />All proposed drill locations are shown on the enclosed map <br />Preventative Measures <br />Fire The use of open fires will be prohibited. Welding operations will only be <br />permitted when adequate fire protection is on hand. Weed burners and similar <br />equipment used to warm parts on the drill rig or other support equipment during <br />periods of extreme cold temperatures may be needed, and will only be permitted <br />when adequate fire protection is on hand. Portable fire extinguishers will be <br />provided on various pieces of equipment, and the water trucks supporting the <br />drilling operation will also serve as backup fire protection. <br />Soil Erosion As mentioned above, measures will be taken to protect the topsoil <br />resource. In addition to salvaging and stockpiling the topsoil resource during road <br />and drill location construction, once the road or drill location is no longer needed <br />for its intended purpose, the topsoil will be respread with the regrading operation. <br />Once the topsoil is regraded, it will be scarified and seeded. With the inclusion of <br />runoff controls mentioned above, no other impacts causing erosion to the topsoil <br />resource are anticipated. <br />For drill site locations that do not drain to a sediment pond, sediment control <br />measures utilized by Colowyo will be a combination of one or several of the <br />following: berms, mud pits, rough soil conditions of the pad site, brush left in the <br />soil materials, diversion ditches, and/or contour furrows. <br />Surface and Groundwater Pollution Construction of access roads, drill locations, <br />and any other disturbance associated with the exploration will be conducted in <br />accordance with all applicable Federal, State, and Local governmental rules and <br />regulations pertaining to protection of the hydrologic balance. Site specific <br />conditions at each drill location or access road to a drill location will dictate what <br />controls will be incorporated into the construction plan to control sediment and <br />protect surface water from pollution. The groundwater resource will be protected <br />by utilizing non-toxic drilling fluids during the drilling process and sealing the drill <br />holes in accordance with the applicable rules and regulations when the drill hole is <br />no longer needed for its intended purpose. Ground water monitoring holes will not <br />be installed as part of the exploration program. <br />N:\CCC_ENGUUAN\DMG\NOI DOC\OSNOI\OSNOI Textdoc <br />t/26/OS <br />