3617 UPLAND AVE Geotech Report 2025-03-28

GeoTest Services, Inc. April 15, 2021 3617 Upland Avenue, Everett,WA Project No. 21-0375 PURPOSE AND SCOPE OF SERVICES The purpose of this evaluation is to establish general subsurface conditions beneath the site from which conclusions and recommendations pertaining to project design can be formulated. Our scope of services includes the following tasks: • Explore soil and groundwater conditions underlying the site by advancing 4 test pit explorations via a track-mounted excavator subcontracted by GeoTest. • Perform laboratory testing on representative samples to classify and evaluate the engineering characteristics of the soils encountered and to assess on-site infiltration capability. • Provide a written report containing a description of subsurface conditions and exploration logs. The findings and recommendations in this report pertain to site preparation and earthwork, fill and compaction, seismic design, foundation recommendations, concrete slab-on-grade construction, foundation and site drainage, infiltration feasibility, temporary and permanent slopes, geotechnical consultation, and construction monitoring. • Assess Geologically Hazardous Areas (if present) per Everett Municipal Code (EMC). PROJECT DESCRIPTION The trapezoidal-shaped, approximately 19,600 square foot subject property is located on the northeast corner of Geyer Lane and Upland Avenue in Everett, WA. The project site contains an existing single-family residence with an attached garage. A driveway originating from Upland Avenue serves the existing garage. GeoTest understands that the subject property will be split into two single-family lots.The existing residence will occupy the new eastern lot and will remain as part of the new development. This residence will be renovated to include additional living space and a new detached garage. A new single-family residence will be constructed on the western lot. This residence will likely consist of a one- or two-story structure with a north-facing daylight basement. Due to the presence of a 10- to 15-foot-high steep slope that bisects the subject property, it is expected that some site grading will be required to establish a buildable lot adjacent (west) of the existing house. Preliminary information regarding infiltration or stormwater detention facilities was not developed at the time that this report was written. Any proposed facilities would likely be constructed on the northern portion of the new short plat. 1