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April 21,2021 C-2010-089/New Horizon North Mine LJW <br /> Inspection Topic Summary <br /> NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable <br /> N -Air Resource Protection N -Roads <br /> N -Availability of Records N -Reclamation Success <br /> R -Backfill&Grading N -Revegetation <br /> N -Excess Spoil and Dev. Waste N - Subsidence <br /> N -Explosives N - Slides and Other Damage <br /> N -Fish&Wildlife N - Support Facilities On-site <br /> N -Hydrologic Balance N - Signs and Markers <br /> N -Gen. Compliance With Mine Plan N - Support Facilities Not On-site <br /> N -Other N - Special Categories Of Mining <br /> N -Processing Waste N -Topsoil <br /> COMMENTS <br /> This was a partial inspection conducted by Lucas West of the Colorado Division of Reclamation,Mining and <br /> Safety as part of the normal monitoring program for permitted sites. Frank Ferns of Elk Ridge Mining and <br /> Reclamation accompanied the inspection and represented the Operator. The site is in Final Reclamation and was <br /> not active the day of the inspection. the weather was clear and dry, Two photos accompanty this report to <br /> illustrate site conditions. <br /> BACKFILL and GRADING—Rule 4.14 <br /> Contemporaneous Reclamation 4.14.1;Approximate Original Contour 4.14.2;Highwall Elimination 4.14.1(2)(f); <br /> Steep Slopes 4.14.2,4.27;Handling of Acid and Toxic Materials 4.14.3; Stabilization of Rills and Gullies 4.14.6: <br /> Two areas on the western edge of the reclaimed area have recently been repaired. The areas were low <br /> spots that had the topsoil stripped back, and the low area filled with"bench 1 material"that has been stored on <br /> site. The topsoil was then replaced and the landowner has seeded these small areas with Alfalfa to support the <br /> post mining land use. Post reclamation it is the intention that the landowner will add and additional section to the <br /> center pivot sprinkler system to incorporate this area into the irrigated area. The areas that were filled can be seen <br /> in Photos One and Two. The source of the fill material,the "bench 1 material'pile has been shaped and <br /> stabilized. No evidence of settling, slumping or erosion of the pile was observed. <br /> HYDROLOGIC BALANCE -Rule 4.05 <br /> Drainage Control 4.05.1,4.05.2,4.05.3; Siltation Structures 4.05.5,4.05.6; Discharge Structures 4.05.7,4.05.10; <br /> Diversions 4.05.4;Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; <br /> Drainage —Acid and Toxic Materials 4.05.8; Impoundments 4.05.6,4.05.9; Stream Buffer Zones 4.05.18: <br /> The center pivot irrigation system was actively watering the Alfalfa crop at the time of the inspection. <br /> Discussions with the Operator indicate that irrigation waters arrived in the weekend predating this inspection so <br /> irrigation has only recently commenced. The facilities area located at the south end of the permit area was also <br /> observed and to overland flow of irrigation tail water was observed. So signs of erosion,settling or slumping was <br /> observed as a result of irrigation activities on the property. <br /> Number of Partial Inspection this Fiscal Year: 7 <br /> Number of Complete Inspections this Fiscal Year: 3 <br /> Page 2 of 4 <br />