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<br /> <br />Page 5 of 9 <br /> <br />H. Drainage Wetlands and Flood Plain – Section 1325.05 Subd. 2 – Meets Requirements <br />The City Code requires stormwater management be provided to meet water quantity, infiltration, <br />and water quality requirements. The project was previously approved for construction of three <br />(3) stormwater ponds. The first pond is located in the middle of the loading area. The other two <br />(2) ponds were to be located adjacent to 694 and 35W. The proposed parking lot expansion <br />would be constructed in the general area of the previously identified pond adjacent to 35W. <br /> <br />It was noted in the October 2020 Staff Report that when the proof of parking stalls are needed <br />that the Applicant would need to construct an underground retention area in the same area to <br />replace the existing stormwater pond located adjacent to 35W. The Applicant as part of this Site <br />Plan Review is proposing to construct an underground retention system. City code requires that <br />off-street parking areas and drives shall be improved with a paved surface and that such areas <br />shall be so graded and drained so as to dispose of all surface water accumulation within the area <br />as required by the City and the Rice Creek Watershed District. The Public Works Director/City <br />Engineer is reviewing the underground retention system design and infiltration rates with regards <br />to potential impacts of existing wetlands, public versus private runoff, and access to nearby <br />utilities and easements. The parking lot expansion from a zoning review may seem simplistic, <br />but that far be the case from a Public Works/Engineering standpoint. Planning Staff has included <br />the Public Works Director/City Engineer preliminary comments under Additional Review. <br />However given the complexity of this design and parking lot location with the logistics of <br />easements, wetlands, and stormwater maintenance a full review will not be complete for <br />inclusion with this report. Staff will work to have an update on the PW/Engineering review for <br />the Commission at the meeting. <br /> <br />In addition, the Applicant has indicated that the updated site plans and underground retention <br />systems plans have been submitted to the Rice Creek Watershed District, but they have not <br />received a comment review letter or approval from the Watershed. Therefore, Planning Staff <br />recommends Planning Commission consideration of a condition of Site Plan Review would be <br />subject to approval of the Rice Creek Watershed District. <br /> <br />Lastly, it should be noted that upon the determination of the Public Works Director/City <br />Engineer that the proposed plans would be compliant then the Applicant would be required to <br />apply for a separate land disturbance permit for construction of the parking expansion area. This <br />work may not be completed under any of the previously issued permits for this project. Prior to <br />the issuance of a land disturbance permit for the parking lot expansion area, the Applicant shall <br />submit an amended operation and maintenance plan for the long-term care of all onsite <br />stormwater facilities subject to the satisfaction of the City Engineer. The stormwater <br />maintenance plan shall also require review of the City Attorney prior to approval of the City <br />Council. This agreement needs to be fully executed prior to issuance of the land disturbance <br />permit. <br /> <br />3. Easements <br />The Subject Parcel was required to dedicate several easements as part of the platting process <br />with the subdivision of land that occurred as part of the approvals for construction of the new <br />building. The City required dedication of drainage and utility easements over the existing