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MINNEHAHA CREEK r WATERSHED DISTRICT QUALITY OF WATER QUALITY OF LIFE May 31, 2013 Jim and Heidi Williams 840 Old Crystal Bay Road Orono, MN 55391 Dear Mr. & Mrs. Williams, On May 28, 2013, Minnehaha Creek Watershed District(MCWD) staff conducted a final inspection for permit#11-308 for the construction of a single family home at 840 Crystal Bay Rd S in Orono. Staff verified that the buffer signs had been installed in accordance with the approved plan, but new potential violations were observed and is described below: • Fill within a wetland o A large area of exposed soil was observed partially in the wetland at the east end of the property and partially in the required wetland buffer area. The area was apparently used for a hockey rink over the winter. It appeared the area had been graded (cut on the upland side and filled on the wetland side), and the grading appears to have resulted in fill within the wetland and buffer area. The site plan included in the declaration that is recorded on the property for the wetlands/ wetland buffers onsite and the presence of original wetland delineation flagging and buffer monuments indicates that the wetland and wetland buffer were impacted by the grading. • Mowing within wetland buffer east of the house o The wetland buffer along the wetland east of the house have been mowed where there should be no disturbance. Please take the following corrective actions immediately: • Install temporary soil stabilization (e.g. erosion control blanket) to the exposed soil area • Install perimeter control along the downgradient edge of the disturbance to prevent additional erosion impacting the wetland • Contact me at 952-641-4504 or cbach@minnehahacreek.org to set up an on-site meeting during the week of June 3-7,2013 to discuss a removal and restoration plan for the wetland & buffer impacts.