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is mostly all developed in single family residences. The slope <br /> vegetati.on consists primarily of deciduous trees and underbrush, <br /> with sone evergreen trees scattered throughout the slope srea. <br /> Local surface failure scars occur throughout •thP slope area, <br /> particularly Nithin the centrnl portion. Some tree r.utting <br /> along the slope is evident. Both Powder Mill Gulch to the east <br /> and Edgewater Creek to the weat are .well incised into the area <br /> and are year around streame which outfall into Possession Sound. <br /> FIELD EXPI.ORATION <br /> The field exploration technique used to gather data for this <br /> study consisted QP performing four borings along Shore Avenue <br /> (approximate locations show�i �n the enclosed location map) , <br /> and traversing the subject area. Field mapping was performed <br /> of strata outcroppings and correllated with the boring informa- <br /> tion for preparation oP the enclosed geologic map. <br /> The borings ranged in depth from 19.0' to 29•0' along Shore <br /> Avenue� and were performed using a mobile heavy duty rotary drill <br /> advancing 5' sections of hollow stem auger. Soil saiapling was <br /> performed at S' intervals beginning at 2.5' below grade using <br /> standard penetration equipment. Piezometers, consisting of 1" <br /> diameter slotted plastic pipe, were installed in TB-1 (1 @ 13' <br /> and 1@ 29� ). TB-3 �10' J and TB-4 (24' ). These were installed <br /> to allow monitoring of ground water and surface water within <br /> these areas. A previously perforu�ed boring (R-101 by CH2M-Hill) <br /> of approximately 132' deep is approximately shown on the enclosed <br /> location map and was reviewed for pertainen�t data and informa- <br /> tion. 4he data from thia boring was generally considered unuseable <br /> due to the limited descriptions of soil strata encountered and <br /> h�nce, lack of correlation with our data. <br /> Observation and geologic mapping was performed during the traverse <br /> o� the slope area. These observations were ma3e along the top- <br /> of-slope, toe-of-slope and the slope itself. Several observations <br /> were perfor�ned uD thE �Slope face . in surface failure scar areae <br /> -2- <br />