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TO: <br />FROM: <br />DATE: <br />EXHIBIT <br />Jeanne A. Mabusth, Zoning Administrator <br />Michael P. Gaffron, Septic System Inspector <br />April 6, 1982 <br />£ <br />SUBJECT: #677 David Duff & Willicun Gregory, Shoreline Drive <br />Subdivision <br />I have reviewed the site evaluation report submitted and wish <br />to make the following comments: <br />In general the slopes and soils moderately limit the future <br />location of houses and buildings. Soils are mostly clay <br />loams and loams. Some lots require further testing at this <br />point since acceptable drainfield sites have not been demonstrated. <br />Lot 1 - Average perc rate for holes 1-4 was 115 mpi. The <br />slope in this area is too steep to allow a mound system <br />to be used, hence this area is unsuitable for use as <br />drainfield. Average perc rate for holes 5 and 6 <br />was 23 mpi with slopes in the range of 15-18%. This <br />area was chosen by the site evaluator as the primary <br />site, with an untested secondary site just uphill <br />to the west. Because of the close proximity to an <br />existing foundation, I would recommend that an <br />additional 2 to 4 perc tests be conducted in the <br />alternate and primary site to confirm that the entire <br />area designated is suitable for drainfield. <br />Lot 2 - Testing for Lot 2 indicated acceptable perc rates <br />averaging 40 mpi. Slopes are acceptable for a <br />standard system in the designated sites. As an <br />added note of caution, however, the drainfield sites <br />will limit the house location to the east and <br />northeast portions of the lot. <br />Lot 3 - This proposed lot has an existing house with well <br />and septic system. The septic system was functioning <br />acceptably during my most recent inspection. No <br />suitable alternate drainfield site has yet been found <br />on this lot. Additional site investigation is needed <br />before tnis lot can be approved. In addition, should <br />the existing house ever be replaced, the existing <br />drainfield would have to be abandoned since it is less <br />than 75 feet from /.he lake shore. <br />Lot 4 - This lot has an existing house with well and septic <br />system. The septic system was repaired by adding <br />drainfield in 1965, but it has been in a state of failure <br />since at least 1979. Also, this existing drainfield <br />actually is located 60' into the proposed Lot 3, not <br />as shown on the site evaluators report. Since the <br />existing drainfield has to be replaced now, both a <br />primary and secondary site should be located. The <br />proposed "alternate" site, southeast of the house, needs <br />further testing but may well prove adequate for a primary <br />system. Because of space limitations, slopes, house