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SUBJECT: SEATTLE PUBLIC UTILITIES SHIP CANAL WATER QUALITY PROJECT: TUNNEL EFFLUENT PUMP STATION - BALLARD CONVEYANCE CONTRACT (PW# 2021-029) INDUSTRY OUTREACH INSTRUCTIONS: REQUEST FOR FEEDBACK ON RE-BID CONTRACT DOCUMENTS Industry Outreach Documents Issue Date: July 10, 2023 Industry Outreach Documents Comments Due Date: July 26, 2023 (by 5:00pm PDT) Contractor Response Form Link: TEPS-BC Industry Outreach Questionnaire We want your feedback on an exciting construction project in Seattle and want to work in partnership with you. Bids for the Tunnel Effluent Pump Station (TEPS)/Ballard Conveyance contract were opened in April 2023. Seattle Public Utilities (SPU) decided to re-bid the project which will begin between 4th quarter 2023 and early 2024. We are seeking feedback from both primes and subs through 6 questions to develop improved contract documents for the contracting industry. The questions are related to packaging, contract terms, and critical elements. Future Advertisement The TEPS/Ballard Conveyance contract is expected to be advertised for bids in 4th quarter 2023 or early 2024. Notice to Proceed is anticipated in late summer or early autumn of 2024. The sequence from bid opening to Notice to Proceed includes 80 days after contract execution for the contractor to prepare early submittals, obtain permits, and procure long lead-time items. Future Changes to Re-bid Contract Documents Bids were opened for the TEPS/Ballard Conveyance project in April 2023. SPU decided to revise and re-bid the project with substantial changes. Some of the changes will be based on feedback from this Industry Outreach. Other changes that will be made include the following: A mutual waiver of, or cap on, Consequential Damages will be included in the contract. Architect/Engineer Professional Liability Insurance will be reduced to $10M policy, with the option of the General Contractor to fully or partially indemnify subs. The pump station tower lattice fabricator certification requirement will be removed and replaced with project experience qualifications. Will provide more clarity on permit requirements. There may also be a limit on liquidated damages and Consent Decree penalties and more flexibility for contractor designed elements. Industry Outreach Process Below is a link to complete a Contractor Response Form to facilitate Contractor feedback and suggestions to SPU prior to the re-bid. While the process is not confidential (in that responders are requested to identify themselves and provide contact information for potential follow-up), we are not planning on publishing any feedback received. We request your feedback by 5 PM PDT on July 26, 2023. Below the link to the Response Form is additional reference information. We have also included the following documents for reference on Procureware: Draft- Project plans and specifications, updated to include addenda from initial bid process. A PowerPoint presentation summarizing the overall Ship Canal Water Quality Project, the TEPS/Ballard Conveyance contract, and planned changes to the TEPS/Ballard Conveyance contract. Click below to complete the Contractor Response Form (access through link below). TEPS-BC Industry Outreach Questionnaire Note: Providing answers to the Outreach Questionnaire will not preclude any contractor from bidding the project in the future. We look forward to receiving your feedback and thank you in advance for your participation. Sincerely, Ken Lee [email protected] TEPS/Ballard Conveyance Project Manager Additional Reference Information Project Overview Seattle Public Utilities (SPU) and the King County Department of Natural Resources and Parks (DNRP) are constructing a 29-million-gallon underground storage facility to temporarily hold peak combined sewage flows that exceed the collection system capacity (Combined Sewer Overflows, CSO) and then gradually release the excess volume back into the sewer collection system for conveyance to the King County West Point Treatment Facility. The overall Ship Canal Water Quality Project (SCWQP) facility is required by a federal Consent Decree and is being led by SPU. The Consent Decree states that the Facility must be operational by 12/31/2025; however, SPU and DNRP are in discussion with regulators about extending this date. The SCWQP will be constructed through several contract packages, and this Industry Outreach process is specific to the Tunnel Effluent Pump Station (TEPS)/Ballard Conveyance package, the final construction package. The TEPS/Ballard Conveyance contract includes construction of a 12 MGD pump station within the drop shaft constructed by a prior contractor. The pump station extends 108 ft below grade and 80 ft above grade. The pump station also includes 1000 kW generator, electrical building, landscaping, and street end restoration. The Ballard Conveyance portion of the contract includes a below grade diversion structure and approximately 2,000ft of 8.5 ft diameter microtunnel to bring flows to the pump station and storage facility. The microtunnel includes 6 shafts, 4 of which will be contractor designed. The TEPS/Ballard Conveyance contract also includes testing and final commissioning scope for the overall SCWQP facility. This includes scope to make final connections at 4 flow diversion structures in East Ballard, Fremont, North Queen Anne, and Wallingford to allow combined sewer flows to enter the storage facility. The overall SCWQP facility commissioning has a staffing allowance for 4 months of testing the new facility with storm flows. Major Activities Mobilization at the sites Construction of pump station below grade and above grade Construction of transformer, generator, and electrical building at pump station site Site piping and finishes at the pump station site and 24th Ave NW street end Procurement of Microtunnel Boring Machine (MTBM) Excavation support and dewatering systems at the microtunnel shaft sites Mining of microtunnel Flow diversion structure and conveyance piping at the upstream end of the microtunnel Removing CDF, temporary piping, etc. and making final connections at 4 previously constructed flow diversion structures Startup, testing, and commissioning of the entire Ship Canal Water Quality Facility, including work completed previously by others Staffing allowance for 4 months of storm flow testing through the facility Key Contract Items Schedule constraint included in Temporary Construction Easement from Seattle Pacific University (used to make final connection of the previously constructed flow diversion structure) Opportunities exist for contractor-obtained Temporary Construction Easements from Stimson Marina (adjacent to the pump station site) and Ballard Oil property (2619 NW 54th St) City of Seattle’s Community Workforce Agreement applies (Section 00 73 00) American Iron & Steel requirements & Davis-Bacon wages apply to this contract due to federal funding Puget Sound Energy has already relocated buried gas lines in several locations to accommodate construction of microtunnel shafts An agreement is in place for coordination with Ballard Terminal Railroad located along the north side of the pump station site, including a process for temporary track outages (Section 00 73 00) Seattle City Light has already completed designs for temporary relocation of overhead lines and poles at several locations to expedite the work when the contractor requests the relocations Seattle Department of Construction & Inspection (SDCI) Construction permit has been obtained for the pump station Seattle Department of Transportation (SDOT) street improvement permits have been obtained for right-of-way restoration. Contractor must obtain street use permits for lane closures specific to their means and methods. SDCI, Army Corps of Engineers, Washington Department of Ecology, and Washington Department of Fish and Wildlife permits have been obtained for work within 200 ft of the shoreline King County Industrial Wastewater Discharge Permit has been obtained Washington Department of Ecology Construction Stormwater General Permit and Administrative Order have been obtained and will be transferred to the Contractor Four microtunnel shafts will be contractor-designed and permitted. Permitting will be through SDOT, not SDCI. The shafts located at 28th Ave NW & NW 56th St and Station 219+40 (south of 24th Ave NE and NW 54th St have been designed and permitted.

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