711 112TH ST SE 7 ELEVEN Geotech Report 2018-01-02 MF Import

Su6surJace Ecplormron and Proposed 7-Eleven Praperry Geotrchnica! Engineering Repon Everetr, Warhingmn Project and Sitr Conditions may represent gradational variations between sediment rypes. Our explorations were approximately located in the field by measuring from known site features shown on the aforementioned site plan (Figure 2). The conclusions and recommendations prescnted in this report are based on the five exploration pits completed for this swdy. Becausc of the nature of exploratory work below ground, extrapolation of subsurface conditions between field explorations is necessary. It should be noted that differing subsurface conditions may sometimes be present due to the random nature of dcposition and the alteration of topography by past gr�ding and/or filling. Tlie nature and extent oF any variations between the field explorations may not become fully eviJent until construction. If variations are observed at that time, it may be necessary to re- evaluate specific recommendations in this report and make the appropriate changes. 3.1 Exploration Pits Five exploration pits were excavated with an owner-provided and -operated backhoe on January 30, 2001. The pits permitted direct, visual observation of subsurface conditions. Materials cncountercd in the exploration pits were studied and classifiec; in the field by a geologist from our firm. All cxploration pits were backfilled immediately after examination and logging. Selected samples were then transported to our laboratory for Curther visual classification, as necessary. 4.0 SUIISURFACE COND[TIONS Subsurface conditions on the parcel were inferred from the field explorations accomplished far this study, visual reconnaissance of the site, and review of topography provided on the previously mentioned Site and Exploration Plan. As shown on the ficld logs, the exploration hales gcnerally encountered fill soil of v�riable density, overlying medium dense to densc sedimcnt. 4.1 Stratigraphy Fill Marerial interpreted as fill (soil placed by people) �vas encountered at the surface in all of the exploration pits ro depths bclow existing site grade ranging from 3�h fect in EP-1 to 11'h feet in EP-4. The fill material appearcd to consist of two layers of different rypcs of material. The upper layer consistcd of inedium dense to very dense, moist, tan, brown and gray, gravelly, h/nrcli /9, 2Wl ASSOGATED 6U2TH SCIENCES SR/Cup � A'f.p491.4�/ � D�dCP'�yn {.0l - lCA' PBgC 3 /�