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Hole Completion -Due to long-term access issues and/or the depth of the holes, OMLLC does <br />not plan to complete the exploration holes as water monitoring wells or methane vent wells. The <br />hole depths are noted above. <br />Site Reclamation -Upon completion of drilling and related activities, all drill holes will be <br />backfilled, sealed and abandoned. During drilling, fluid return will be monitored to identify the <br />depth and extent of any water-producing zones. Upon abandonment, bentonite chips or a <br />bentonite gel or similar seal will be established in the bottom of the hole, extending to at least <br />within 10' of the surface. Accumulations of drill cuttings and mud will be buried in the mud pit <br />(if any). A cement plug will be set in the drill hole ten (10) feet below the ground to within three <br />(3) feet of the surface. <br />Excavations, including mud pits, will be backfilled. Where mud pits are necessary, they will be <br />allowed to dry and/or backfilled with drill cuttings and/or previously excavated material. During <br />backfilling, the material will be mixed and compacted as it is replaced, by running the equipment <br />over the backfilled area during placement of successive lifts. Following backfilling, disturbance <br />azeas will be graded to their approximate original configuration and drainage will be <br />reestablished. Any salvaged topsoil materials will be re-spread onto the regraded surface. A <br />metal post with identifying brass tag will be placed in the vicinity of the hole as a permanent <br />mazker. All trash and debris will be removed from drill sites for disposal. <br />For pre-existing disturbance azeas, the disturbed configuration will be reestablished as needed for <br />future operations. For other exploration disturbance azeas, reclamation will be completed after <br />regrading by scarifying the regraded surface as needed, redistributing stockpiled topsoil, and <br />reseeding the area using the certified weed free seed mixtures prescribed in the CDRMS Permit <br />C-1981-022, Volume 12, Exhibit 2.05-E6, Revegetation Plan. Oxbow will be also be responsible <br />for the control of noxious weeds in accordance with CDRMS Permit C-1981-022. <br />Project-Saecifie Plans and Parameters -Exploration activities aze expected to be typically <br />completed by the middle of October because of weather and or hunting season considerations. <br />The exploration program will otherwise comply with the requirements of Rule 2.02 of the <br />Regulations of the Colorado Mined Land Reclamation Boazd. <br />6.0 CULTURAL RESOURCES AND BIOLOGICAL CLEARANCES <br />Cultural and paleontological resources, threatened and endangered (T & E) species block <br />clearance assessments have been completed in 2005 for the roads and sites included in this NOI. <br />Copies of the reports have previously been forwazded to the Division and appropriate agency(s) <br />as soon as they were completed. The areas to be drilled aze located in the mountain shrub and <br />Juniper woodland vegetative communities and the block clearance report indicate no need to <br />conduct nesting raptor surveys due to the lack of nesting habitat. <br />9.0 RECLAMATION COST ESTIMATE <br />There is approximately 17,200' of new temporary road construction, 1.75 acres of pad <br />disturbance and 6,900' of total drill depth. OMLLC requests that the Division prepaze the <br />reclamation cost estimate for the 7 drill pads and road reclamation. <br />• Page 5 <br />