07-22-2002 Council Packet - Laserfiche WebLink

Home Browse Search

m Peterson Environmental Consulting, Inc. July 17,2002 Mr. Paul Weinberger City ofOrono 2750 Kelley Parkway, P. O. Box 66 Crystal Bay. MN 55323 »»ccxitsjn 'JUL P 2 2002 CIIYUHOHUVU Subject;Wetland Buffer Observations Revis Stephenson Property Orono, Minnesota PEC Project No. 2002-037 Dear Paul: Peterson Environmental Consulting, Inc. (PEC) has field reviewed an alleged wetland buffer encroachment on the Revis Stephenson property at 1850 Fox Ridge Road. We specifically reviewed the magnitude of the alleged encroachment and the quality of re vegetation and erosion control efforts on the property. As discussed at the Orono City Council meeting on July 8, 2002, we found it necessary to refine the winter wetland delineation done on the property by EnviroData, Inc., from which the 26-foot buffer was measured. Our observations and recommendations are as follows; Observations and Recommendations The previous delineation was too conservative (an understandable result given the conditions under which the delineation was performed) and encompassed a strip of upland along most of the wetland boundary. The rationale for the refinement of the delineation is provided below. • The wetland fringe appears to be partially due to the depressed elevation of the wetland ’s outlet structure under the Luce Line Trail. With the refined wetland boundary, the total area of grading that occurred within the 26-foot buffer totals less than 300 square feet. The entire slope has been successfully stabilized with erosion control fabric, herbaceous vegetation and silt fencing. Minimal erosion and sedimentation has occurred since the site was re-vegetated, despite record storm events in June of 2002. 1353 M;.*ndoij Heights Road. Suite 100 Mendota Heights. MN 35120*»I *2 Tcl 63l-6Sh-OI51 Fax 65l•^8h•03^9 www.petersoncnv.eor*