09-14-1992 Council Minutes2 - Laserfiche WebLink

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TO:Jeanne A. Mabusthr Building & Zoning Administrator PROM;Stephen Weckman, On-Site System Manager DATE;July 15, 1992 SUBJECT: #1757 CUP - A. Hanser - Septic Review Septic testing is required for this parcel indicating alternate sites for both the guest house and the main residence. During the review of this subdivision by Jean Mabusth, it was determined that the ordinary high water level of Lake Minnetonka encroachea within 75' of the existing guest house as well as the septic system for the residence. This encroachment makes the septic system non-conforming based on the shoreland regualtions and revised spetic code requirements. Jean noted in her March 12, 1992 review for the subdivision request that additional testing must be submitted indicating a second alternate drainfield site for the guest house as well as the abandonment of the existing septic system with the installation of the replacement system using one of the alternate site for the guest house within one year of the final subdivision. In order to be consistent with Orono Septic Code Section 12.30 however, the septic system for this guest house must be replaced within 90 days of the approval of a CUP. Mark Gronberg has been contacted regarding this issue and indicated that the two alternate drainfield sites for the guest house as well a'j the alternate site for the main residence should be feasib'^e and will submit an addendum identifying these sites on the property survey. As per our discussion, best way to acheive adequate sites for sewage treatment would be to have one alternate site for the guest house while extending the other alternate site already designated to make i. large enough for both the main residence as well as the guest house. Based on the soil testing information already provided and previous inspections of the property in question, the drainfield sites should have no problem in treating septic effluent affectively. 1^.