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DESIGN REVIEW <br />Design of the Sediment Pond Embankments was completed by Leonard <br />Rice Consulting Water Engineers, Inc., Chen & Associates and Dave <br />Gossett. Specific portions of the design were completed by each <br />group or individual. Hydrologic investigations required for <br />the design and placement of each embankment was completed by <br />Leonard Rice, Consulting Water Engineers, Inc. Chen & Associates <br />determined the soils and geologic condition at each site selected <br />by Leonard Rice. Determination of. each embankment's specific <br />design and constructed dimensions were then completed. Dave Gossett <br />completed construction drawings for each embankment utilizing these <br />designed dimensions. <br />ACZ INC. utilized these design parameters in completion of this <br />project. Slight additional adjustments were made to the design <br />dimensions to ensure that the structures would serve the purpose <br />for which they were designed and be built in accordance with <br />Colorado Regulations. These changes consisted of the following <br />items: <br />• Utilization of overburden material from the pit <br />as fill material <br />~ Excavation of a portion of the soil material <br />upstream from embankments "B" and "C" to <br />ensure adequate sediment storage volume <br />Fill material for the embankment was required to be compacted to <br />95% Standard Proctor density. Placement of fill material in lifts <br />not to exceed 8 inches and compacted by a sheep's foot roller or <br />equivalent was required. <br />2 <br />A ~ ~ tHC. <br />