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To: Building & Zoning Administrator Mabusth From: Michael P. Gaffron, Asst Planning & Zoning Administrator Date: Ju , 1987 Subject- #1163 cDowell/Woodhill - Septic Testing Review I have reviewed the site evaluation information submitted and would make the following comments: 1. Each proposed lot contains both a primary and alternate drainfield site. Three of the five lots have sites suitable for trench drainfield systems. Lots 2 and 3 will require mound systems. 2. In every case, the two sites tested are probably the only feasible sites for on-site sewage systems. This is especially true on Lots 2, 3, and 4, which all contain steep slopes, wetlands, and a single relatively level area where the systems must go. Lots 1 and 5 have a slight bit of leeway in that sites could shift slightly to allow for alternate house sites. 3. In every case, we would want to have the septic sites fenced off prior to issuance of building permits, since if the sites are disturbed, the lots would become unbuildable. A review of each lot follows: Lot 1 - Both sites suitable for trenches, on the crest of a long hill. House site is west of the septic sites. The house site will be limited by the setbacks from front and right (south) side, but is feasible. System will undoubtedly require a pump. Lot 2 - The sites are both suitable only for mounds and are located at the easterly corner of the lot. These sites are the only sites available on the lot. The anticipated house site is downhill from the mound site. Lot 3 - The mound sites are across a minor ravine from the anticipated house site. No other septic sites are feasible. The alternate mound site is about 40' from a low area we will be designating as a wetland, however, the alternate mound will be vertically about 10' above that area, hence we have no problem recommending approval of this site given that this is essentially a closed basin. PIE Lot 4 - Trench systesms could be installed on and just west of the "saddle" area, with the house site further north. Note that 50' front and rear setbacks will force the house to be wider and may tend to force encroachment on drainfield sites - I would suggest a 30' rear setback be allowed if possible. Lot 5 - Trench sites are along the top of the long hill. The house site is at the east end of that hill. There might be some potential to "flip-flop" the house and drainfeld sites, but the house site has not been tested for septic. Everything downhill is steep or is low and wet. With driveway proposed from the east end, an easterly walkout is anticipated.