1986-11-10 Letter, Alteration to Wetland

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CITY of ORONO V10%t llffice lks" 66"Cryrafal Itay, Mlflnerlta 55CJZJ•Municipal ()ffk= On the North Shore of Lake Minnetonka November 10, 1986 Mary Anderson 4185 Bayside Road Maple Plain, MN 55359 RE: Changes to Designated Wetland Dear Ms. Anderson, This letter is to follow up our inspection and conversation of October 29, 1986 regarding potential changes to the wetland on your property. You noted that there is some concern by your neighbors of the relatively high water level in the wetland and you wished to know the procedure necessary to obtain a permit to lower the water elevation in the wetland. I would make the following response to that request. 1. The wetland on your property and on your neighbor's property is a "designated wetland" as indicated by the attached copy of the City's official we, -lands mhps. The boundaries of such wetland are shown approximately on those maps. 2. Your culvert on 10/29/86 was discharging a slight amount of runoff, hence without doing any actual elevation shots, it appears that the water level in the pond is at its probable maximum and any additional water going into the wetland will be discharged through the culvert. 3. You noted that a few years ago you re -set your driveway culvert in the drainageway east of the wetland. It would appear that if you were to lower the culvert more than 3" or so, you would have to regrade a good length of the natural channel east of the driveway also. This in itself would require a grading permit. 4. It is my opinion that the wetland is wetter than usual because we have received unusually high levels of precipitation the last few years, and the water level in the wetland is a natural result of that precipitation and the generally high water tables in the area. BUILDING & IONING - 473 7357 • AIMMISTRATION A FINANCE - 473 7 338 • PURLIC WORKS - 473.7339 ASSESSING