3815_PGSF WMVD Pkg 2_Vol 4-3_03.03.2026_BXWA_Certified

3rd Interim Action Construction Report Kimberly-Clark Upland Site 0121049.080.084 July 30, 2024 2-1 landauinc.com 2.0 IMPLEMENTATION OF THE INTERIM ACTION The Project, which included implementation of the Interim Action, commenced in October 2021 and concluded in May of 2023. Interim Action portions of the Project generally included site grading, cap construction, utility installation, outfall reconstruction, soil and groundwater management, and security fencing installation. Preload ground improvement activities to support cap construction were conducted in portions of the Site prior to approval of the Work Plan; this work was proposed in the Preload Ground Improvement technical memorandum (Preload Memo) that was approved by Ecology, which was included as an attachment to the Work Plan. Preloading activities are discussed in this report as a part of the Interim Action. 2.1 Ecology Coordination and Permitting The Interim Action was implemented in accordance with the second amendment to the AO. In addition to Ecology approval of the Work Plan, the Port maintained consistent communication with Ecology’s Site manager, Andy Kallus, during the Project, which included weekly coordination meetings, requests for reviews of contractor submittals, and general updates of observations at the Site. The Port also obtained the following permits and approvals for the Project: • NOAA Fisheries Section 7 Endangered Species Act (ESA) Letter of Concurrence (February 10, 2021) • US Fish & Wildlife Section 7 ESA Letter of Concurrence (March 11, 2021) • US Army Corps of Engineers Nationwide Permit 7 Authorization (June 14, 2021) • City of Everett Shoreline Substantial Development Permit, Height Modification, and Landscaping Modification Approval (September 23, 2021) • Washington State Department of Archaeology and Historic Preservation No Historic Properties Affected Concurrence Letter (March 17, 2021) • Port State Environmental Policy Act mitigated determination of non-significance (March 8, 2021) • Ecology Administrative Order for compliance with Water Pollution Control Act, Water Quality Standards, and National Pollutant Discharge Elimination System Construction Stormwater General Permit (CSGP; August 3, 2021) • Washington State coverage under the CSGP (August 6, 2021) • City of Everett Public Works Permit (October 26, 2021) • Maritime Administration National Environmental Policy Act Record of Categorical Exclusion (April 15, 2021) • City of Everett Letter of Substantive Requirements (August 10, 2021) • Washington Department of Fish & Wildlife Letter of Substantive Requirements of the Hydraulic Code (July 8, 2021). Copies of permits and approvals are held by the Port and can be provided upon request.