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blockages in the temporary trench. However, it appears that a trench/pipe to the river still <br />acts as a beneficial outlet to relieve rising pond levels due to the influx of groundwater <br />from the current East Boundary Trench and future Phase 1 French Drain location. The <br />trench has already been backfilled to UDFCD specifications (as it was originally <br />constructed -ASCI has those plans) and has additional rip -rap emplaced within the trench <br />area to create a more porous area of the barrier to facilitate drainage in the short term <br />from the pond. Additionally, ASCI will construct a new piped outlet from the pond <br />where the terminus of the Phase 2 French Drain is to be placed at the northwest corner of <br />the former pit area. In short, ASCI will construct the Phase 2 terminus (as designed and <br />approved by the DRMS) of the French Drain and will connect the current pond to the <br />South Platte River in that location. The location for the terminus is not in an area that <br />requires any UDCFD improvements. nor have any improvements been made by the <br />UDFCD. This work will be completed by April 30, 2015. See #4. <br />4. Phase 1 of the French Drain on this site will be completed by April 30, 2015 and will <br />utilize the existing East Boundary Trench as the bed for the drain. Until the April 30`" <br />deadline for this construction completion, the current trench will be monitored for <br />continued functioning as it was intended. It is currently performing as designed and <br />upgradient groundwater levels are significantly lower than several months ago. ASCI will <br />also keep in touch with Mr. Levi Kirby should it appear that for some reason the trench is <br />backing -up with groundwater and flooding of his basement could occur. <br />5. ASCI cannot give a completion date for Phase 2 of the French Drain, as that date is <br />unknown at this time. The pit must be filled with inert material in order to create an <br />"outboard" wall of material in which to set the perforated collection pipe and pipe <br />bedding into. That will be some years in the future. Attachment 3 contains <br />correspondence with the DRMS concurring with this timeline from David Bird and <br />copied to Tony Waldron. <br />6. As was committed to in the amendment (AM -04 approved 1 -29 -2010 by the DRMS) for <br />this site, ASCI will submit certification consisting of a letter report by a qualified <br />engineer within 60 -days of completion of each phase of the French Drain, confirming that <br />the drain was constructed as designed. We are currently putting together some minor <br />design changes (pipe type and bedding material) for approval with the engineering <br />company that did the original design and also getting a cost schedule for onsite <br />construction review. <br />This should complete the responses to your preliminary adequacy review of TR -02 for this site. <br />Please contact me if there are any further questions or concerns you may have. <br />Sinc , <br />Rob Laird, Resource Manager <br />cc: file <br />Dan Hunt <br />