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� . ; � O� �O O � -�;-- !=- �1 CITY of ORONU -� '� ,� ,'°,`:`�r��...� �; \,�,� E'•�, �t Y,X,� �l5� Municipal Offices � �� 7y;i�`k�,�G Street Address: Mailing Address: �t'EgHOg' 2150 Kelley Parkway P.O. Box 66 Orono, MN 55356 Crystal Bay, MN 55323•0066 December 4, 1998 Mr. Donald Chase 365 Ferndale Road North Wayzata MN 55391 Dear Mr. Chase; This letter is in response to your recent phone calis and letter regarding drainage concerns with the new house constructed next to your lot. We have discussed this situation �vith the Building Inspector, Bruce Vang, and I have completed a site inspection with Bruce to view the drainage issues. My understanding of the history of this project from Bruce is as follows. The approved site plan for this house showed surface drainage going to the southwest. The builder first constructed a temporary drainaae ditch heading to the south. Because of concern for maintaining septic sites, located west of the house, they could not determine exactly w�here the final ditch to the southwest should be located. They later installed a perforated drainpipe in the ditch to the south. The builder's plan was to use this pipe to drain the depressed area for the walkout basement entrance and then grade the site to drain the remainder of the property to the southwest. The builder was informed by Bruce that draining the walkout depression through this pipe was not acceptable. The builder then graded a lazge ditch deep enough to drain the walkout area and remainder of the lot to the southwest. This is a substantial ditch with a five wide bottom and approximately five feet deep. This ditch is more than adequate to handle the drainage from the property. This ditch draining the surface water to the southwest is in conformance with the approved site plan. The amount of surface drainage going to the south should be reduced with the installation of the drainage ditch. It appears that before construction of the house large part of the lot drained overland across your drive�vay and into the wetland area to the south. The lot has now been graded to direct much of this water into the drainage ditch to the southwest. Telephone (612) 47�7357 • FAX 473-0510