Laserfiche WebLink
• -\ material was placed in the embankment to meet or exceed the design <br />J specifications. The compaction tests exceeded the design <br />specifications. This as-built report confirms the construction of this <br />structure meets or exceeds the Rules and Regulations of the Colorado <br />Mined Land Reclamation Division. The structure is stable, evidencing no <br />indications of slope instability. <br />• .~ <br /> <br />To the best of my knowledge, based upon my professional expertise, and <br />to the extent possible, this sedimentation pond at the Nucla Mine was <br />constructed in accordance with the prudent state-of-the-art of earthen <br />embankment construction. Further, the structure was constructed in <br />compliance with the approved design, to the extent possible, as <br />specified in Tab 13, Attachment E of Peabody Coal Company's approved <br />mine permit. Minor field adjustments .in horizontal and vertical <br />alignment were necessary during construction to compensate for <br />unanticipated natural conditions, achieve the necessary storage <br />capacity, limit the disturbed area, and construct a structure consistent <br />with the existing and reclaimed topography. To the best of my knowledge <br />and belief, field adjustments made during construction to the structure <br />are in conform~Q~~~with the Rules and Regulations and the intent of the <br />approved de~~4P~~a~y;'bRd specifications (see Exhibit 13-15A). <br />JanS~s G. <br />Colorado <br /> <br />-npR ~ 8 ~sa~ <br />Date <br />Conclusion <br />Sedimentation Pond 005 does meet or exceed the design and performance <br />requirements of the CMLRD's regulations. Peabody will inspect the pond <br />quarterly to evaluate structural integrity,. storage capacity conditions, <br />and remedial work requirements in accordance with the approved mine <br />permit. Therefore, pursuant to Rule 4.05.6(7), the above is <br />Sedimentation Pond 005's as-built certification report. <br />7 <br />