2514 51ST ST SW Geotech Report 2022-10-25

GEO Group Northwest Inc. Geotechnical Engineers, e ists &Environmental Specialists June 23, 2017 Project No. G-4400 Mr. Edward Koltonowski 2514-51'Street SW Everett,Washington 98203 Subject: GEOTECHNICAL ENGINEERING EVALUATION Koltonowski Residence Underpinning 2514- 51'Street SW Everett,Washington 98203 Dear Mr. Koltonowski: Foundation settlement has occurred in the northeast corner of the residence. It is recommended that the northeast corner be underpinned to stabilize the foundation and prevent additional settlement. Lifting of the foundation to relevel the foundation is optional. The purpose of this report is to evaluate the subsurface soil conditions and provide recommendations for the underpinning. Our scope of work included a review the area geologic map, a site reconnaissance, evaluation of the foundation settlement, subsurface evaluation of the site soils with a hand augered boring and by probing, engineering analysis and preparation of this report. SURFACE CONDITIONS The subject residence is located in a residential neighborhood on the south side of 51'Street SW, approximately as illustrated on the Vicinity Map, Plate 1. The lot,Tax Parcel No. 00568000000400, is 0.28 acres in size. The home is a split-level entry with a daylight basement and attached garage. The parcel slopes down gradually to the northeast and it appears some fill was placed in the northeastern portion of the lot to create a more level yard. Approximately 3/4 inches of settlement has occurred at the northeast corner of the structure. A foundation settlement crack was observed on the east basement wall, approximately 8.4 feet south of the northeast corner of the house and a crack was observed in the foundation for the fireplace chimney on the east wall. The crack in the chimney foundation is an old crack that was patched over 10 years 13705 Bel-Red Road - Bellevue,Washington 98005 Phone 425/649-8757 • Fax 435/649-8758