Agenda Packet Cc - regular meeting 1/11/1988

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Zoning File #1201 January 6, 1988 Page 3 of 5 Septic Review (Exhibits H, 1, & L) All ten undeveloped lots have been confirmed as meeting all required septic standards. Of the total test areas, 4 tested out as standard systems and the remaining 16 as mound systems. Gaff ron has met with the applicants and on -site evaluator to resolve the issues raisee. in his letter of December 22, 1987. In his most recent memo he coriiirmed that the realignment of the road greatly improved the severely restricted envelope of Lot 6. Additional soil borings for Lot 7, Block 1 and Lot 2, Block 2 confirm suitable soils for septic treatment area.. Percolution tests will be completed in early spring. Drainage/Roads - The Engineer has reviewed the proposed access for the private road at Old Crystal Bay Road and has found no sighting problems. There is adequate site distance at 325' in both directions. in reviewing the road layout and gentle topography of the property, the Engineer sees little concern with meeting the required vertical and horizontal control standards (vertical 12%, 275' minimum curved radius). The east/west road and the north spur road qualify for 24' minimum paved widths as with the recent wear subdivision of 6 lots, and the 6 lot Peterman Second Addition immediately to the south. Review Exhibit G, the wetlands boundaries, as shown on Lots 5 and G, are satisfactory. The Engineer recommends placement of 15" cu.-.verts at 2 designations on the plat (review Exhibit G, map attachment). mote that we also have recommended that the existing drainageway within Lot 2 be relocated along the east lot line at the time of preliminary site grading. The revised preliminary plat shows a 15' wide drainage easement along the east side of Lot 2. Planning Commission voiced concern with underground drainage tiles on the west side of Old Crystal Bay Road that may drain to the east within the subject property. The specific concerns were with land alterations that could take place on the subject property that would affect such drainage (review Exhibit E). If drainage were to be affected by land alterations on the subject property, drainage would be picked up at road ditches on Old Crystal Bay Road, but once again the area is minimal and we have no record of such underground lines exi,.+-ii.q.