1613 ORCA VIEW LN 2016-01-01 MF Import

DAVID L. NELSON AND ASSOCIATES, INC. Cansulting Engincering Geulugy December 5, 1987 � Project No. 14187 ' Page 2 sharply over a top-of-slope t� the northeast. A utility line easement occurs along the northerly side of the lot, which consists of an existing sanitary sewer line. Vegetation within the proposed development (level) portion cf the lot consists of scattered evergreen trees and grass. Vegetation within the steep slope area consists of underbrush and grass, with all trees removed. Soils Conditions Although no specific exploration was performed within this lot area, several exposures of the underlying soils conditions were available for us to observe. � Additionally, we have performed exploration within the lot area irt�mediately to � the north, and have reviewed the general soils report for the Edgemore Heights � I� plat area. We fcund the area to be underlain by grey-brown to grey, medium � � dense to dense, �eorly sorted silty sand with gravel, considered to be well I � consolidated glacial soils. Just downslope, the materials become much more � sandy and somewhat less compact, indicating them to be glacial outwash soils. ' The surficial soils within the proposed residence area appears to consist of � 0.5 feet of topsoil , underlain by 1.5-2.0 feet of brown loose silty sand with ' roots, underlain by about 1.0 foot of grey-brown medi�... dense gravelly silty sand, which overlies the dense basal glacial soils. Some artificial fill can be found within the area of the existing sanitary sewer line easement, probably derived from placement and filling of the utility line. Hydrologic Conditions I The ground water table was not encountered within the site area, bu', some ' outcropping ground water can be seen downslope. This outcropping ground water I does not appear to be derived from on-site. Some �urface water ponding and flowing over the top-of-slope was observed. This is considered normel where dense, relatively impermeable glacial soils occur near surface, and surface waters do not readily penetrate, but run laterally downslope.