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, PC Exhibit L <br /> Memorandum �Bonestroo <br /> 2335 Highway 36 W <br /> St.Paul,MN 55113 <br /> Project: Orono Senior rei es�-63e-a�ao <br /> To: Melanie Curtis Housin Date: 2-15-11 Fax 651-636-1311 <br /> From: John Smyth, CVUD Client: CI�/ Of 000110 www•banestroo.com <br /> Re: Orono Wetland Cade Review File No.: 139-09000 <br /> Background <br /> The project site wetland delineation was completed by Arrowhead Environmental <br /> Consulting in November of 2009. The site contained four wetlands labeled <br /> Wetland 1, 2, 3 and A (see attached Figure SA). The applicant's consultant <br /> claimed that Wetland A and 2 were not jurisdictional because they were artificially <br /> formed by grading activities and stormwater discharge. This was reviewed and <br /> approved by the Minnehaha Creek Watershed District and results in only two <br /> wetlands, Wetland 1 and 3, being jurisdictional basins. Wetland 1 is the large <br /> basin in the southwest portion of the site and Wetland 3 is the smaller basin <br /> along Wayzata Boulevard West and is labeled Wetland 2 on the Orono Senior <br /> Housing submittals. <br /> The first plans submitted and reviewed by Bonestroo were dated 6-23-10. <br /> Bonestroo provided Wetland Code compliance comments to this submittal in a <br /> memo dated 7-9-10. <br /> Wetland Code Compliance <br /> The latest submittal dated 2-3-1i also has proposed site improvements that <br /> trigger the requirements of the City Wetland Code. The wetland classification <br /> map indicates one large wetland, however as discussed above the onsite <br /> delineation indicates that there are two jurisdictional wetlands. Wetland 1 was on <br /> the classification map and has a Manage 1 classification and requires a 35 foot <br /> buffer. Wetland 2 has been determined to be a Manage 2 classification and <br /> requires a 25 foot buffer. All buildings principal and accessory, must be set back <br /> at least 20 feet from the upslope edge of the buffer of both basins. <br /> This development is also subject to the Minnehaha Creek Watershed District rules <br /> regarding wetland buffers. The Minnehaha Creek District requires 40 foot buffer <br /> for Manage 1 and 30 foot buffer for Manage 3 basins with no structural setback <br /> from the bufFer. The applicant has provided the bufFer width for the watershed <br /> district which exceeds the City buffer width requirement and has provided a 20 <br /> foot setback from the buffer to meet the City Code. <br /> C:\Users\mcurtlsWppData\Local\MkrosoR\Windows\Temporary Intemet Flles\Content.0utlook�ZOZACO5qJ5_Melanfe^875 Wayzata Blvd West^2-15-11.doa �TNS 06-2010] Page 1 of 2 <br />