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' � r Memorandum �Bonestroo 2335 Highway 36 W To: Melanie Lurtis Project: Safar Parcel - Partenwood Road Date: I 2/8/2009 Sc vau�,MN 55113 From: John Smyth (lient: City or Orono Tel 651-636-4600 Fax 651-636-131I Re: Wetland Buffer Ordinance file No: 139-09000 www.bonescroo.com Remarks: The proposed building triggers the requirements of the wetland ordinance. The site investigation took place on 12-8-09. Frozen soil conditions required a wetland boundary estimate rather then a formal delineation. A formal delineation will likely be required by the �ity prior to issuance of the certificate of occupanry. The wetland boundary was marked in the field with pink ribbon tied to shrubs and trees. The boundary is marked at a distinct topographic and vegetative break. There is one wetland located on the lot and it has a Manage 3 classification. This classification requires a 16.5 foot buffer and 20 foot setback from the buffer. Buffer Condi6on and Requirements The buffer is predominately oak woodland and has a significant amount of buckthorn in the understory. According to Division 3 sec 18-1605 buckthom is considered to be an undesirable plant species and should be removed from the buffer area. Due to the density of the buckthorn within the buffer the area will need to be seeded or planted with native species once the buckthorn is removed. The applicant will need to provide a ManagemendLandscaping plan that includes the following: I. Method proposed to be used to control buckthorn (MN DNR website source for options). All buckthom 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. 1. Method o( establishing native vegetation in buffer for areas. (MN BWSR Web Site — Publication: "Restoring & Managing Native Wetland and Upland Vegetation" source for options). 3. Species proposed to be seeded or planted. According to the ordinance Div. 3 Sec. 18-1605 (3) the seed mix must contain at least 12 pounds (PLS) per acre of native prairie grass seed and 5 pounds (PLS) per acre of native wildFlower seed. The grass mixture must contain a minimum of four species while the wildflower mixture must contain a minimum of five species. (MN BWSR Web Site — Publication: "Restoring & Managing Native Wetland and Upland Vegetation" source for options). 4. A schedule of activities that are part of the management and maintenance for the removal of buckthorn and the establishment of vegetation in the buffer shall be provided. Survey Requirements A legal description for the upslope edge of the buffer will need to be submitted with the Restrictions and Covenants (see below).