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Memorandum �Bonestroo <br /> To: Evelyn Turner Project; 430 Stubbs Bay Rd Date: 5116/2007 2335 Highway 36 W <br /> St.Paul,MN 55113 <br /> From: Amy Carolan Client: City of Orono Tel 651-636�600 <br /> Fax 651-636-1311 <br /> Re: Pool construction File No: 139-06000 www.bonesVoo.com <br /> Remarks: <br /> Per Division1. Sec.78-1601 of Orono's Wetland Protection Ordinance,the proposed pool <br /> construction on the above listed property triggers the city's ordinance due to the following: <br /> • Disturbed property drains towards a wetland. <br /> • Grading exceeds 50 cubic yards. <br /> • Net increase in the square footage of impervious surface area. <br /> The wetlands found on this property have been classified as preserve and manage 3 wetlands, <br /> which require a 50 foot and 16.5 buffer respectively. <br /> Based on an 8 May 2007 field inspection, and review of the submitted pool building plans,the <br /> pool will be situated outside of basin#1's 50 foot buffer and 20 foot setback. Construction of <br /> the pool should not impact basin#1. Basin#2 may be impacted by a driving area that appears <br /> to be within the wetlands 16.5 foot buffer,this is described below. <br /> The following is a summary of remaining issues regarding wetland basin#1: <br /> Per Division 3. Sec.78-1605(b. 2}the buffer surrounding basin 1 contains unacceptable buffer <br /> vegetation due to large amounts of buckthom and a lack of herbaceous ground cover(a result <br /> of shading caused by the buckthorn shrubs). <br /> Unacceptable plant species(mainly buckthom)should be removed by hand-as large <br /> mechanical equipment may further disturb the wetland buffer. Following buckthom removal,all <br /> bare areas should be seeded with an approved native seed mix containing a minimum of four <br /> species of native grasses and five species of native forbs at a rate of 12(PLS} pounds per acre <br /> (seed mix should be submitted for approval pnor to planting). <br /> All silt fences should stay in place(outside the wetland buffer)during pool construction to <br /> protect wetland basin#1 from sediment. <br /> Issues regarding wetland basin#2: <br /> Per Division 3. Sec 78-1605 (b. 2)the buffer surrounding basin#2 also contains unacceptable <br /> buffer vegetation due to the presence of buckthorn,reed canary grass, and garlic mustard. <br /> Unacceptable species should be removed by hand or with appropriate herbicide(herbicide <br /> should be approved for use near water and be applied by a certified applicator)and the <br />