2930 MAPLE ST KAISER PERMANENTE Geotech Report 2025-03-07

Geotechnical Engineering Report-Revised lrerracon Kaiser Everett Medical Center Everett,Washington -- s--- y� December 18, 2019 Terracon Project No. 81195071 GeORepOrf Item Description Existing Based on the information provided, the current Kaiser Medical Office Improvements Building is a 58,501 square foot medical office building. Current Ground Paved parking and landscaped areas. Cover Based on our review of Google Maps and field reconnaissance, the site appears to slope gently up from east to west, south to north. There appears to be a slight grade differential between the southeast corner of the existing Existing Topography building and the parking lot to the south supported by a short, approximately 3-foot high retaining wall and rockery. Grades trend down sharply at the access road to the south of the existing building down to the east toward Maple Street. In general, the geology observed consisted of a relatively thin layer of asphalt and aggregate base course overlying loose to medium dense fill or Geology reworked glacial till that is further underlain by dense to very dense glacial till. Lacustrine deposits were observed below the fill and above the glacial till in the northern portion of the site in Boring B-09-19. PROJECT DESCRIPTION Our initial understanding of the project was provided in our proposal and was discussed during project planning. We have made certain assumptions regarding site grading, the extents of cuts and fills for the final development, and structure and pavement loading conditions. The design team should confirm our assumptions are consistent with the planned design. In the event that design plans differ from the assumptions in this report, we should be consulted to provide additional recommendations or modifications to this report as appropriate. Our understanding of the project conditions is as follows: Item Description Our office was provided with documents titled: "Due Diligence Locations" identifying the parcel boundaries at and adjacent to the site. ■ "Everett Preliminary Site Plan 4.19"showing an aerial photograph Information Provided of the site with sketched boundaries and square footage of the existing building and proposed improvements. ■ "KE-ASC Blocking Plans—2 Options_Updated2 dated September 8, 2019 Based on the information provided there are two possible options for site Project Description development including construction of a new parking structure and new medical office building. Responsive ■ Resourceful ■ Reliable 2