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control berm. Please respond <br />9. Please clarify whether the "Sediment Trap" as shown on Sheet 6 (Index CS) is to be a temporary or <br />permanent feature, it's installation cost, and plans for final reclamation if it is to be a temporary feature. <br />10. Please discuss the de-watering or water diversion measures to be employed for management of the <br />Cache La Poudre River flows during final reclamation of the berm for those sections of the flood control <br />berm where the south bank of the river is coincident with the north outslope of the berm, ie: the historic <br />south bank of the river has been replaced with the outslope of the flood control berm. <br />11. Please clarify whether there is a need fora 2nd inlet spillway? Why or why not? <br />12. Please clarify whether there is a need for an outlet (return) spillway? Why or why not? <br />13. The Division understands the potential of broken concrete rubble for use as riprap material; however, <br />the "Construction Specifications" provided by Anderson Consulting Engineers state that broken concrete is <br />not acceptable for use as riprap. Please verify that broken concrete on site at the Durham Pit will not be <br />used as riprap material for Flood Control Mitigation. <br />Please contact me at (303) 866-3567 if you have any questions. <br />Sincerely, <br />-~?(~'~ <br />Thomas A. Schreiner <br />Environmental Protection Specialist <br />Cc: Carl Mount, DMG (via E-Mail) <br />Bradford Janes, VCI <br />Chris Varra, VCI <br />