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CAM MINING. LLC <br />McLANE CANYON MINE <br />IMPOUNDMENT YEARLY INSPECTION <br />In accordance with Rule 4.05.9(14), all impoundments shall be inspected at least yearly <br />to determine it the impoundment has been maintained as designed, and in accordance <br />with the approved plan and the applicable regulations. This yearly inspection is for the <br />impoundment located at the McClane Canyon Mme. <br />On March 24, 2006. I performed the required yearly inspection. I, J. E Stover, have a <br />wide variety of experience in the design and constn,ction of earth fill ernbankments. <br />Nothiny was observed during the inspection that would indicate the pond has a <br />potential for failure. There was no appearance of erosion, instability, structural <br />weakness or other hazardous conditions. There are no required monitoring procedures <br />or uistnuncniaUon other than monthly and yearly inspections. There are no aspects <br />which aught alfecl stabil,ty and there is no regwred maintenance. The sediment pond <br />had water standing 1.,5-feet above the primary spillway at approximate elevation of <br />5458.5. Even though water ~s standing above the level of the primary spillway, there is <br />still adequate capacity in the pond to contain the 10-year 24 hour event. <br />The required capacity of the sediment pond is 0.55 A-F. The required water capacity o1 <br />the sediment pond is 0.36 A-F and the required sediment capacity is 0.19 A-F (ref. PAP <br />Section 2.4.1 and Table 4.2-12) The actual size of the pond exceeds the required <br />capacities listed ui the permd. <br />The sediment pond has the following estimated capacity based on the existing water <br />level in the pond: <br />,.~ <br />POND CAPACITY -ACRE FEET <br />Water Sediment Total <br />IC.67 Maxi <br />0.51 {50°a v1 0.28. <br />0.14 0.65 <br />To the best of my knowledge and belief, the impoundment sediment pond at the <br />McClane Canyon Mine has been maintained as designed and in accordance with the <br />approved plan and applicable regulations. <br />. ro~.~~ <br />James E. Stover ; ~ ~,.r ~~: r Date <br />Colorado ProfessiotS21 engineer <br />Registration No. 19230 s <br />