5016 HARBOR LN 2016-01-01 MF Import

� � � ,� M r� �� DAVID L. NELSON AND ASSOCIATES, INC. Consulting Engineering Geology October 27, 1988 ProJect No. 1328b Page 2 Location 6 51te Description The investigated site area consists of lot 11 of Harbor Ridge, located in Everett. Mashington. The proposed development portion of the lot con�ists of the upland portion between Harbor Lane and the located top-of-slope. The site area consists generally of tMo distinct portions; an easterly upland area between the top-of-slope and Harbor Lane where proposed development is :.o occur, and a westerly steep slope area belav the top-uf-slo�e. The easterly portion is relatively flat lying, with a slight ►vesterly slope toward the top- of-slope. Yegetation within this portion cansists primarily of small sized deciduous trees, and scattered medium to large sized evergreen and deciduous trees, with open areas covered with grass. The area downslape of the top-of- slope slopes steeply Loward the west in the direction of Merrill and Ring Creek. Yegetation upon the slope consists of mixed small to large sized evergreen and deciduous trees and underbrush. Some thinning and pruning of the slope vegetation has occurred. Soils Conditions The subsurface soils conditions can best be seen on the enclosed test pit logs. In general, the site appears to be underlain by compact glacial soits, with areas of surficial artificial fill. Explorations performed around the proposed development area encountered dense glacial soils at depth. These materials were found to consist of grey, dense, poorly s�rted, silty sand with gravel, considered glacial till, found at depths ranging from below 2 to 10 feet belav grade. Overlying the dense basal sotls are variably thick surficial soils, ranging from native to artificial fi11. Wiihin the majority of native areas, the surficial soils were found to consist of 0.5 to 2 feet of grey-brown, medium dense, gravelty si17y sand, considered the weathered upper portion of the dense basal soils. These soils