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��Y' O` V �'�, <br /> ��0 :.,, 0������ <br /> �( �-������-�_._ ���� CITY of ORONO <br /> � �a � ���,� ��� � ' <br /> � �� ; � . �,,j Ytunicipal Offices <br /> `�'C� ` 1 �^"'. �'�'���.� O~�i� Mailin Address: <br /> ,� ��,,;�������� ,� ,� Street Address: g <br /> 'kESII�� ' 2750 Kelley Parkway �.0. Box 66 <br /> Orono, MN 55356 Crystal Bay, MN 55323-0066 <br /> November 12, 1993 <br /> � <br /> � ' �L - <br /> j�ave_PerersE�-�-_ ]� 1��'�'� ._ <br /> 625 Fox Street �, G�—�- �� <br /> � %��� <br /> Wayzata, ��L ,�.Cy.� �-� <br /> RE: Approval of Septic System '( - � � <br /> Dear Mr. Peterson: <br /> This letter is to confirm the City of Orono's position regarding your recently constructed septic <br /> system. The system consists of septic tanks and a shallow trench drainfield with a curtain drain, <br /> all located generally in the front yard. <br /> Soil borings performed by S-P Testing, Inc. indicated that soil mottling (an indicator of seasonal <br /> water table) was encountered at a depth of less than 4' and a mound treatment system would <br /> normally have been required at the site. However, no area on the site met the required 20' <br /> drainfield setback or had a slope suitable for a mound. <br /> Therefore, the Inspection Department allowed the installation of a shallow trench system with <br /> a curtain drain around the uphill perimeter to intercept and eliminate any seasonal ground water <br /> that may occur in the area of the drainfield. With this curtain drain in place, this system as built <br /> is considered by the City of Orono as a conforming system, meeting the code requirements for <br /> separation from the seasonal water table. <br /> Sincerely, <br /> `�.ce�2� / ' �`6�/,�`-�-" �,u�) <br /> Michael P. Gaffron <br /> Assistant Planning & Zoning Administrator <br /> MPG/lsv <br /> cc: Jeanne A. Mabusth, Building & Zoning Administrator <br /> Stephen Weckman, On-Site Systems Manager <br /> Telephone (612) 473-7357 • FAX 473-0510 <br />