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Memorandum Bonestroo <br /> To: Melanie Curtis _ Project: Ebertz-1220Tonkawa Road Date: 9/7/2007 2335 Highway 36W <br /> St.Paul,MN 55113 <br /> From: John Smyth Client: City or Orono Tel 651-636-4600 <br /> —- - —- -------- -- _ ------ Fax 651-636-1311 <br /> Re: Wetland Buffer Ordinance File No: 139-07000-1 www.bonestroo.com <br /> Remarks: <br /> According to the submitted building plan two wetlands have been delineated within the <br /> property boundaries at 1220 Tonkawa Road. The following is a summary regarding information <br /> on each of the wetlands and the associated requirements to be in compliance with the wetland <br /> protection ordinance. <br /> Maxwell Bay Wetland#1 (Located adjacent to Maxwell Bay) <br /> According to the city's wetland classification system,wetland#1 has been classified as a <br /> preserve wetland which requires a 50'upland buffer. <br /> Review of the submitted building plans has indicated that wetland#1 and its upland buffer <br /> should not be disturbed due to the construction that will occur on the property. Currently the <br /> patio slab is located within the setback but not in the buffer.According to the city's wetland <br /> protection ordinance,Div.5 Sec 78-1608 2a—patio slabs may be placed in the setback area so <br /> the patio slab location is acceptable. The existing shed may need to be moved outside of the <br /> buffer,however we may need to discuss the language within the ordinance to determine if it is <br /> required to be moved. <br /> A site evaluation was completed on September 4,2007 to determine the condition of the <br /> vegetation in the existing upland buffer.A large amount of buckthorn(includes mature plants <br /> .as well as seedlings)was documented in the buffer of the wetland during this site evaluation <br /> (see photo last page). According to Division 3 sec.78-1605(2)buckthorn is considered to be an <br /> undesirable plant species and should be removed from the upland buffer area. After buckthorn <br /> is removed,bare or disturbed areas in the understory should be seeded with a shade tolerant, <br /> approved native seed mix(see general comments bottom of memo).There is also a portion of <br /> the buffer that is currently turf(see photos last page). This area will need to be converted to <br /> native plantings through seed or plants. <br /> Wetland#2:(Located adjacent to Tonkawa Road) <br /> Wetland#2 has also been classified as a preserve wetland and will require a 50'buffer. <br /> There is a narrow finger of wetland that parallels County Road No.135 and extends from the <br /> main portion of the wetland to the northwest. I recommend that we waive the buffer and <br /> setback requirement from this portion of the wetland,as stated on the plan,because it appears <br />