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TO: Jeanne A. Mabusth, Building and Zoning Administrator <br />FROM: Stephen Weckman, On Site System Manager <br />DATE: May 6, 1992 <br />SUBJECT: Subdivision #1734, John Burger -Septic Review <br />I have reviewed the proposed septic system testing and design for <br />this property and would make the following comments. <br />Parcel C <br />Depth of seasonal saturation (mottling) is l' 2" to 2' <br />for both primary and alternate drainfield sites. <br />Slope at both sites 1 to 3%. <br />Percolation rates average 13.8 minutes per inch at 12 <br />inches due to shallow seasonal saturation. <br />Both sites require mound drainfields. <br />Topographic location and site drainage is adequate. <br />All setbacks meet city code. <br />Based on the above soil testing information and site inspection, <br />both drainfield sites are adequate to serve 5 bedroom home <br />meeting all code and setback requirements. Soil testing and <br />septic system design have been approved as submitted with the <br />following note; snow fencing must be placed around the alternate <br />drainfield site to assure that construction activies for both the <br />house and the primary drainf ield site do not compact this site. <br />Snow fencing must be placed around the alternate drainfield site <br />prior to the issuance of a building permit. <br />Parcel A/B <br />This lot has an existing residence with an on-site sewage <br />treatment system. The system is listed as code conforming in <br />compliance and the system appears to be functioning adequately at <br />this time. A municipal sewer system has been proposed for the <br />Stubbs Bay area and if approved would require that residence be <br />hooked up to the sewer system within 16 months of sewer <br />availability. If the proposed sewer project is rejected, the <br />septic evaluation made by City of Orono staff indicates that an <br />alternate drainfield site is likely available for this residence.