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To:Joanne A. Mabusth, Zoning Administrator <br />From: <br />Date: <br />Michael P. Gaffron, Assistant Zoning Administrator <br />August 20, 1985 <br />Subject: *928 Richard Pula, 2015 Webber Hills Road - <br />Review of Septic Report <br />The existing system is located in the front yard and contains approxi­ <br />mately 480 s.f. of drainfield. This has been functioning adequately for <br />the Pula's with no apparent problems. <br />Based on the perc rates provided by the applicant's site evaluator, a <br />5 bedroom house at 150 gal Ions per bedroom per day design rate would need <br />(5 BR X 150 GPD/BR x 2.2 SP/GPD) <br />Everything about these sites is a tight squeeze because of the loca­ <br />tion of the well dead-center on the lot. The areas that have been re­ <br />graded, west and south of the house, are likely not suitable for drainfield <br />because the soil structure has been disrupted. <br />I would suggest that based on the information given and the currently <br />functioning septic system, adequate sewage treatment can likely be <br />accomplished on this property for the existing and proposed uses, and an <br />alternate drainfield site can likely be developed if a few minor variances <br />are granted at some future time when it is needed. The septic system does <br />not appear to constitute a limitation to the guest apartment use on this <br />property. If the guest apartment use is granted, I would suggest that the <br />existing system be left as-is until such time that it becomes a problem <br />(the owner may wish to add on now anyway) and at that time proceed to <br />install the additional trenches. <br />i <br />This is an applicati''’' for a conditional use permit for a guest apart­ <br />ment on an unsewered pro. rty. The City asked the applicant to provide <br />information showing that che septic system could be expanded in order to <br />provide capacity for the added use, and to show an alternate site. <br />® 1650 square feet of drainfield, or more than 3 times the size of the <br />existing system. Obviously the Pulas are not over-using their existing <br />small system. They have a potential of increasing their trench system to <br />about 1330 square feet, or a 600 GPD capacity (8 persons at a standard <br />design rate of 75 GPD per person). This added drainfield presumes a 50' <br />rather than 75* setback from well to drainfield (state codes allow a 50' <br />setback minimum). <br />An alternate site has been proposed as a mound system located over the <br />trench system. This has been done successfully in one other location in <br />Orono, on Cygnet Place. A mound system for a 5-bedrooro usage would have to <br />be designed rather narrow and long to fit the site and maintain the 50' <br />well setback. It would be nearly impossible for this system to meet a 10' <br />setback from the lot lines, but with certain design considerations it could <br />be placed within the property boundaries.