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Nelson Geotech Fld Rpt 1 Binder - corrected 9.1.2020FIELD REPORT NELSON Project: GEOTECHNICAL Owner: ASSOCIATES, INC. Location: 17311 135TH Ave. NE #A-500 Weather: Woodinville, WA 98072 Purpose of Binder Residential Development Deborah Binder Edmonds, WA Sunny; 70's Geotechnical Consultation and File No.: 11544B-20 Date: 8/7/2020 Report No: 1 Page 1 of 2 (425) 486-1669 FAX 481-2510 Visit: Construction Monitoring By: AJS East Wenatchee, WA 98802 (509) 665-7696 We visited the site today at the request of Deborah Binder to provide geotechnical consultation and earthwork construction monitoring services for the residential development project located at 8912 — 192nd Street SW in Edmonds, WA. Upon arrival, we met with Leif, the contractor on site, to discuss the current excavation progress. We noticed that the foundation and basement subgrade had been completely excavated. We were requested to evaluate the subgrade for bearing capacity. Foundation and basement subgrade consisted of a gray silty sand with gravel which we interpreted as native glacial till. We evaluated the subgrade with a lh inch diameter steel probe rod under moderate pressure. Probing yielded less than %2 inch, which we interpreted as dense or better conditions. It was noted that a roughly 100 square foot portion of the foundations in the southwestern corner probed up to 4 inches. We interpreted this as medium dense and recommended its removal before foundations were placed. The contractor on site said this would be done. While on site we also evaluated the cut stability of the basement excavations. Excavation cuts were roughly 8 feet in height and consist completely of the native glacial till. We observed no signs caving or signs of imminent failure while on site. Basement cuts appeared stable at the time of our site visit. Our findings and conclusions are based on observations made while on site. Foundation subgrade and the temporary basement cuts appear to be prepared in accordance to the approved site plans and our recommendations and should support the planned loads. We are able to return to the site upon request. Attachment: Distribution: Signed: ixg", Austin Slabaugh Binder Res Dee Site Plan 115 B-20 Date: 700) 3 FR# I Page: of a jeend Area of Excavation Basement Exc_ Drawings Not To .kale