10200 19TH AVE SE Geotech Report 2018-01-02 MF Import

: � 3• Pn�vide recommendations for earthwuck including stripping, remocal of organic or otha unsuitable matuial,grading, bacictill compaction,and evaluating the effects of weather and constxuction equipment on the site soils. 4. Develop reconvnendations for foundation design, including allowable soil bearing pressures and settlement estimates for shallow foundations. 5. Provide pusive ea�th pressures and the coefficieot of base fric;ion against sliding for ` resistance to lateral loads. ' 6. Provide recommendations for slab-on-grade conshvction. 7. Provide recommendations for pavement design f�r truck tra�c azeas and pazking azeas, inciuding subgrade p�eparation requirements. ' 8• Provide recommexidations for loading dock wall and other retaining walls, 9• Provide rewmmer�dations for surface and subsurface drainage systems bued on the ground water wnditions encountered or ezpected. SITE CONDITIONS SURFACE CONDITIONS ' The 22.5 acre site is located between 19th Avenue Southeast and Interstate 5 at about lOSth Streec Southezst. The site gronnd surface generally slopes downwazd to the eut with approaimately 20 feet of topographic relief. 'Ihe high�t portion of the site, az the western end, � is at an approximate ground surface elevation of 580 fcet above mean sea level bazed on topograp6ic information on plans prepazed for the sitr by Bazghausen Consulting Engineers Inc. � (see appendix for reference). Two unoccupied wooden structures are located in an open field in the northern/central portion vf the si:e. Three single-farnily residences aze located on site near the eastem property line. Each residence on site has at least one storage shed or gazage associated with ic. We were uaable to observe the immediate vicinity of single-family residences to eval�iate whether there aze underground heating oil tanks associated with these swctures. Mae Landscaping, Inc., operates out of one of the single-family residences. An office trailer and a covered pazking azea, consisting of a concrete slab-0n-grade with an unenclosed shed, aze located on the Mae I.andscaping propeRy. The remainder of the site area is undeveloped. We observed several azeas of ponded water �� on the site surface at the time of our site visits. Most of these azeas have been delineated as wetlands as noted on Figure 2. Vegetation on the site consists of tall gracs, tall brush and forest. Some areas of the site were inaccessible at the time of our site visits because of dense vegetation and blackberry bushes. Ne observed occasional locations of discarded refuse on the site,paziiculazly in and azound the wooden structures at the northem porcion of the site and in the wooded azeas throughout the site. 1'he refuse we observed in and azound the unoccupiefl wooden stcuctures of the site consisted of household debris including household appliances, fumiture and building materials. G e o E o y i n c e r ■ 2 Fle No.0975-017-A73/062993