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• BOLTON <br /> Consulting Engineers & Surveyors <br /> �� 2638 Shadow Lane,Suite 200•Chaska, MN 55318-1172 <br /> Phone(952)448-8838•Fax(952)448-8805 <br /> www.bolton-menk.com <br /> May 31, 2012 <br /> City of Orono <br /> Attn: Christine Mattson <br /> PO Box 66 <br /> Orono,Mn 55323 <br /> RE: Wetland Delineation/Bldg.Permit#2012-00339 <br /> 4115 Watertown Road <br /> Dear Christine: <br /> As requested,we have reviewed the wetland delineation for 4115 Watertown Road. Based on our review, <br /> we offer the following comments for your consideration: <br /> 1. The wetland delineation report is complete. <br /> 2. We concur with the findings of the report regarding the location,identification,and the <br /> boundaries of the three wetlands. <br /> 3. The report does need to be forwarded to the MCWD for dissemination to the Technical <br /> Evaluation Panel. <br /> 4. The Functional Assessment of Wetlands (FAW)Map indicates the wetlands located on site are <br /> classified as Preserve level. If the Wetland Protection ordinance requirements are triggered due <br /> to new development or redevelopment,the following should also be considered: <br /> a. The wetlands will require 50 foot buffers. <br /> b. Buckthorn and turf grass were found in the buffers and are considered to be undesirable <br /> plant species. The Owner will be required to remove these species from the buffer. In <br /> areas where turf is removed,native vegetation will need to be established. MnDOT seed <br /> mix 350 is recommended for upland buffer areas. <br /> c. A Landscape Plan including methods for removal and control of turf grass and buckthorn <br /> and a schedule of native vegetation establishment should be submitted for review. <br /> d. Wetland Buffer Markers should be placed at the upland boundary of the buffer edge, <br /> located at the lot lines and spaced a maximum 100 feet apart. <br /> e. A $5,000 escrow should be submitted by the Owner to cover the cost of buffer <br /> development if not completed by the applicant. <br /> Please contact me if you have any questions or need additional information. <br /> Sincerely, <br /> BOLTON&MENK, INC. <br /> -L)1--Q ? V1& <br /> David P. Martini,P.E. <br /> Principal Engineer <br />