11020 19TH AVE SE BARTELL DRUGS 2016-01-01 MF Import

� � Subsarjace Erplorntion nad Si(rer I.nke:19n1!Bnnell Dn�g Store Geotechnica.+E'ngineering Report E�'e��(!. IVnShfn,�ton Prolect and Site Cortditions I4.1 Strati�raphy Fill Fil] soils (those not naturally placed) were encountered in 17 of the 19 explorations completed � at the site. The fill ranged in diicl:ness from approximately 1 to 5.5 feet. As noted on the exploration logs, the fili consisted of two types: I) sand, and 2) crushed rock. The sand filt I typically consisted of loose to medium dense, moist, brown, silty sand with scattered peat and medium dense, moist, gray, gravelly sand. The sand fill covere�l the surface of the site and was approximatcly 1.5 to 4 fec[ thick. � The crusl�ed rock fill was located towrrd [hc south-centrai �ortion of the site (Figure 3) and cunsisted of 2- to d-inch-diameter crusi�ed rock that direcdy overlaid native glacial till. The � ; crushed rock fill varied from about 1.5 to 2.5 feet thick where encountered. � The shallow sand fill is generally loose, and not suitable tbr support of foundations or parhing � a:eas or sfabs unless it is removed and recompacted in accordance widi the recommendations presented in Section 6.0 of this report. The crushed rock fill is firm and unyielding and is suitable for support of foundations, slabs, or parking areas if prepared according to the � recotrunendations presented in Section 6.0 of this report. � Pertr Pcat �vas encounte;ed below d�e fill iu explorations EL'-Z, EP-1 through EP-5, and EP-9 � throagh GP-I 1. 1'he peat extended beyond the no:th end of the site and to a depth of about 8 feet below existing site grade and typically cunsisted of soft, moist, dark brown peat with some organic silt. The peat likely represents a past time when Silver Lake or wedands surrounding � Silver Lake extended into this area. This material is not suitable for support of structures or pavements. � G/ncia! Till Natural soils beneath the pavemen[, fill, and peat rypically consisted of very dense, moist to I s:�mrated, gray, silry, gravelly sand with scattered cobUles and boulders and are interpre[ed to � be glaci:il till. This material was overrun by several �iousand feet of ice durine the last glacial � advance that resulted in a compact soil possessir.g hi��h strength, low compressibility, and low permeability charac[eristics. This materia( is suitable for support of structures and pavements. I � December 30. 2004 .aSSOClATED F11RTH SClENCES. IIJC. I �.vs,re-xfoJ�nu>-r.��rri_ai�r�vnxEnvr Page 4 .��