IMCO General Construction 5/9/2022

City of Everett,Washington I Water Filter Plant- Phase 2 Capital Upgrades PDB Project Progressive Design-Build Contract I Draft Exhibit C. Phase 1 Scope of Services • Identify planned field inspection methods, testing methods, repair procedures for any destructive testing that will be conducted, and lab procedures for any lab testing that will be conducted • Identify plans and methods to protect existing site infrastructure and plant operations from damage or disruption during field investigations consistent with the Owner's Project Criteria (Exhibit B). • Identify plans and methods to protect drinking water conveyed by or stored in site infrastructure from contamination during field investigations consistent with the Owner's Project Criteria (Exhibit B). Field Investigations (Project Conditions and Geotechnical): The Design-Builder shall conduct the following field investigations: • Perform all necessary field investigations required to verify exterior and interior conditions at all locations associated with the proposed scope of work, to support development of the Design-Builder's improvement concepts, repair/replacement methods, materials selection, process improvements, valve/vault seismic improvements, construction access, construction sequencing, and permitting/design documents. • Perform follow-up investigations during design development (prior to GMP) as needed to verify conditions and locations. • Geotechnical investigations are anticipated to be required to assess the viability of providing improved seismic stabilization for the buried valve vaults, and any proposed bypass structures. Design-Builder shall propose recommended methods to improve seismic stabilization, provide guidance regarding possible differential settling between seismically stabilized infrastructure and adjacent non-seismically stabilized infrastructure, and provide support for the design of any seismic improvements to proposed structures and any flexible, resilient connections between seismically and non-seismically stabilized infrastructure. [Note to Proposers: The geotechnical work required for the Project is difficult to define independent of the Proposer's strategy for conducting improvements. This draft Phase 1 Scope of Services does not define the required geotechnical work. Proposers shall provide their recommended geotechnical scope (including investigations and a resulting geotechnical report) in their Proposal. Proposal submittal requirements are described in the RFP.] Geotechnical work under this task shall be performed by a geotechnical engineer licensed in the State of Washington. The Washington Department of Labor and Industries may consider access of portions of the project to be a permit-required confined space entry. The City will dewater plant facilities to provide the Design-Builder access to project infrastructure as required but all confined space entry plans, procedures, and safety equipment will be the responsibility of the Design-Builder. Page 5 of 20