11-19-2007 Planning Commission Packet

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� , PC Exhibit H 'i Memorandum �Bonestroo To: Evelyn Turner Projecr. Stonegate Farm �ate: 1 1/1/2 O O 7 2335 Highway 36 W St.Paul,MN 55113 Ftom: lohn Smyth,CWD Client; City or Orono Tel 651-636-4600 Fax 651-636-1311 Re: Wetland Ordinance Review Memo Flle No: 139-07000-1 www.bonestroo.cam Remarks: Per section 78-1601 of the Wetland Ordinante the project will require wetiand buffers and setbacks due this being considered a new development. Plan Sheet C-4.01 labels the wetland as Wetland A west of the access trai!and culvert and Wetland B east of the trail and cuivert. 7he applicant shall provide the Ciry a copy of the approval letter o�notice of decision for the wetiand delineation from the MCWD to verify the delineated wetland boundaries have been accepted. The wetland is ciassified as Manage 1 and requires a 35 foot buffer and 20 foot setback. Currently the plan shows a buffer and setback on the portion of the wetland adjatent to the homes as shown on the plat. The buffer and setback requirements are required to be around the entire perimeter of the wetland within the plat and this should be reflected on the next plan submittal. Buffer Condition and Requirements A site evaluation was completed on 1 November 2007 to determine the condition of the � vegetation in the existing upland buffer. The upland buffer of Wetland A is wooded, old field and turf grass. The upland buffer of Wetland B is o!d field and turf grass. The old field of Wetland A and B have invasive species that include reed canary grass and thistle. The old field and turf grass areas will require supplemental seeding and removal of the invasives to betome acceptable buffers. The wooded area will need to have the buckthorn removed as well as some seeding to become acceptable. The applitant will need to provide a Management/Landscaping plan that includes the fallowing: 1. Method proposed to be used to control buckthorn{MN DNR website source for options). All buckthorn removal should be done using hand tools as large equipment can further disrupt the wetland buffer. At a minimum buckthorn should be cut and the remaining stems should be treated with an approved herbicide following label instructions. Treating the cut stumps will help prevent regrowth of the buckthorn. 2. Method of establishing native vegetation in turf areas{MN BWSR Web Site— Publication: "Restoring&Managing Native Wetland and Upland Vegetation" source for options).