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I have no concerns in regards to the provided Report however, I believe some additional <br /> discussion needs to added for clarification by Ieserado regarding the proposed RP-A. <br /> Please include the following comments to your adequacy letter. <br /> * After reviewing l e erado Mine' TR-72 for the proposed refuse pile RP-A, there <br /> was no provided information in how the su bgrade or foundation of RP-A will be <br /> developed prior to the placement of refuse. Please have Irdo provide <br /> additional discussion and information regarding the su grade or foundation <br /> development to RP-A prior to refuse placement. <br /> e In HB Engineering &Testing, LLC's Deport, they discuss the potential of <br /> increased pore water pressures within the refuse pile with the burial of saturated <br /> refuse. An increase in pore water pressure could impact the stability of the refuse <br /> pile. Given this concern, HB suggested the potential of including wire <br /> pie orn tern in the refuse pile to monitor pore pressure as an option. However, <br /> given the site's environment and characteristics, the requirement of pie or eter <br /> doesn't seem necessary under the assumption that refuse is allowed to properly <br /> dry before being spread, compacted and burial. Please have l eserado provide <br /> information and discussion on how they plan to allow refuse to reach are optimal <br /> state prior to burial to insure stability of FIB- . <br /> If you have questions, feel free to contact me. <br /> Sincerely, <br /> Zach Trujillo <br /> Environmental Protection Specialist <br /> (303) 866-3567 et. 8164 <br /> Z eh.Trujilto@state.eo.us <br /> 2 <br />