4849 SPIRE LN 2023 Geotech Report 2025-10-15

Proposed Remedial Excavation: 4849 Spire Lane, Everett, WA December 8, 2022 residence to the north, Spire Lane to the south and west, and Vesper Drive to the south and east. The site is occupied by a one-story single-family residence with attached garage at the approximate center of the property. The house is surrounded with landscaped yard and lawn areas. The site grade is relatively flat except for a short rockery at the east side of the lot providing a grade break with the Vesper Drive right-of-way sloping down to the north. We understand that a remedial excavation of impacted soils up to about 15 feet deep may be needed directly south of the residence and west of the driveway area (see Plate 1, below). We understand that the excavation is not planned to extend within the footprint of the house. The approximate location of the proposed excavation is shown on the attached Figure 2 (prepared by Bluestone Environmental, NW). Plate 1. Looking approxiniately north at the intersection of Spire Lane (picture left) and Vesper Drive (picture right). The proposed excavation will take place along the sotith side of the residence in the landscaped area between the right-of-way and driveway (center of photo). Due to the depth of the proposed excavation, to limit the extent of disturbance to the adjacent structure, which could occur due to sloughing of the cut, we understand that sequential excavation methods may be utilized in close proximity to the existing structure. 22-389_4849 spire lane everett_rpt.docx Page 2 PanGEO, Inc.