12/20/2006 Env Bd Packet - Laserfiche WebLink

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Nature's Refuge DRAFT DECEMBER 14, 2006 EAW Record of Decision page 11 Response: It is the goal to minimize the impact of development on the annual runoff loading (volume). • RCWD notes that the wetland delineation for this property has not been formally approved and at this point is considered preliminary. Response: This statement is correct. Many, though not all of the wetlands have been delineated, but there has been no formal approval by the Watershed District. The delineation will need approval by the RCWD. • RCWD notes the approximate proposed wetland impacts of 7 acres will be subject to WCA sequencing and mitigation through the RCWD permitting process and should be considered as only an initial estimate at this time. < Jason et al to address> • RCWD notes that wetlands serve both hydrologic and water quality functions. The RCWD strongly encourages the project proposer to conduct a functional assessment of both the water quality and hydrology of the existing wetland to ensure the avoidance and minimization of impacts to these functions. <Jason et al to address> • RCWD notes that there is an indication of some floodplain fill. The RCWD is concerned about how this will affect the hydrology of the adjacent wetlands in complex 7. Response: The City and project proposer share the understanding that minimizing the impact to the hydrology of the wetlands is a critical component to maintaining the integrity of the wetland complexes. Floodplain fill will be minimized in recognition of this project goal. • RCWD notes that no comparison of quantity and quality of runoff pre- and post - construction was constructed. Because the project site ultimately discharges to Marshan Lake which is an impaired waterbody under the MPCA 303(d) list, such an assessment needs to be conducted. •