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Report (61) s7 his a� 6e Real-World Geotechnical Solutions Investigation• Design•Construction Support December 15, 2015 Project No. 13-3243 Pacific Evergreen Homes 7410 SE Oleson Road#133 Portland, OR 97223 Phone 503-64-6423 Fax Via email: alarwofFmoredpamait.com Subject: FOUNDATION SUBGRADE REVIEW Graceland Lot 2 Tigard, Oregon GeoPacific Engineering Inc. visited the site December 15'h to review the single family home foundation subgrade on Lot 2. We understand that the proposed building is a two-story home. In our opinion, the observed subgrade is adequate for support to an allowable bearing pressure of 1,500 psf. The expected maximum anticipated total and differential footing movements (generally from soil expansion and/or settlement) are 1 inch and % inch, respectively, over a span of 20 feet. At the time of our site visit, the excavation was nearly complete and soil subgrade exposed in foundation excavation consisted of predominantly stiff native soils that probed stiff at about 1 to 12 inches deep with heavy pressure using a steel T"bar probe. Footing-to-wall and footing-to-slope setbacks are not an issue and foundation embedment depths appeared adequate. Due to relatively impervious silty and clayey soils encountered throughout the site, all foundations should incorporate appropriate drainage measures in accordance with the International Residential Code. Adequate crawlspace drainage is not something that geotechnical consultants can verify; the purpose of our visit is for observations of foundation bearing conditions only. Our work scope pertains to a geotechnical engineer's foundation excavation review only and the conditions existing and exposed at the time of our site visit. Within the limitations of scope, schedule and budget, GeoPacific attempted to execute these services in accordance with generally accepted professional principles and practices in the fields of geotechnical engineering and engineering geology at the time the report was prepared. No warranty, express or implied, is made. If you have any questions, please call. Sincerely, ��PkD PROFESS �y �GtNP �O GeoPacific Engineering,Inc. 1 _ OREGO 23 � James D. Imbrie,G.E. � SD.IPM1G� Geotechnical Engineer EXPIRES:06j30/20!7_ 14835 SW 72nd Avenue Tel(503)598-8445 Portland,Oregon 97224 Fax(503)941-9281