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1 <br /> ' June 23,2014 <br /> Project No. T-6241 <br /> ' C Foundations <br /> o Slab-on-grade floors <br /> ' Lateral earth pressure for below-grade walls <br /> • Site retaining walls <br /> ' • Storrnwatcr detention pond <br /> o Drainage <br /> a Utilities <br /> o Pavements <br /> ' It should be noted that the recommendations outlined in this report regarding drainage are associated with soil <br /> strength, design earth pressures, erosion, and stability. Design and performance issues with respect to moisture <br /> as it relates to the structure enviromnent (i.e., humidity, mildew, mold) is beyond Terra Associates' purview. A <br /> ' building envelope specialist or contractor should be consulted to address these issues, as needed. <br /> 3.0 SITE CONDITIONS <br /> 3.1 Surface <br /> ' The project site is an irregular shaped 35.74-acre parcel located east of and adjacent 36th Avenue West and <br /> northeast of' the intersection of 36th Avenue West and Seaway Boulevard in Everett, Washington. The <br /> ' approximate location of the site is shown on the Vicinity Map, Figure 1. <br /> The site is bordered to the north by the existing Interrnec development as well as undeveloped forested land, to <br /> ' the east and south by undeveloped forested land, and to the west by 36th Avenue West. <br /> The currently undeveloped site is heavily forested with both young and mature coniferous and deciduous trees <br /> ' and thick undergrowth consisting of blackberries, ferns, and brush. Site topography is undulating with the overall <br /> gradient falling from west to east-northeast. A generally moderately inclined slope exists in the eastern portion <br /> of the site, outside of the proposed development area. <br /> 1 <br /> 3.2 Soils <br /> ' Soils we observed in the test pits generally consisted of three to six inches of forest duff overlaying loose to <br /> medium dense, reddish-brown silty sand followed by medium dense to dense variations of brown and gray silty <br /> ' sand to sand with silt. Soils underlying the surficial organic and weathered soils varied from east to west. In <br /> general, with exception to Test Pit TP-5, soils in the eastern majority of the site consisted of medium dense to <br /> dense outwash deposits composed of silty sand to sand with varying silt content. Soils in the western portion of <br /> ' the site consisted of medium dense to very dense, weakly to moderately cemented glacial till composed of silty <br /> sand with gravel. <br /> Page No. 2 <br />