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June 2023



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CLOSED-Landfills Post-Closure Operation Support; SPU RFP/Contract# 23-039-S

Original Date Posted: June 9, 2023 7:30 am

Due Date:

5:00 PM Pacific Time on Wednesday, July 12, 2023

Request for Proposals (RFP) for

Landfills Post-Closure Operation Support
SPU RFP/Contract# 23-039-S

The City of Seattle Public Utilities (SPU) is requesting proposals from qualified consultants to provide expertise in qualified consulting firms to provide continued engineering and environmental consulting services related to the operation and maintenance of the closed Kent Highlands and Midway Landfills.

SPU is seeking one (1) qualified consulting firm to perform services including engineering, report creation, consulting, regulatory agency negotiation support, and trouble-shooting for operations and maintenance that will ensure compliance with Superfund site regulations and site RODs. This contract will be for a minimum of 7 years (2024-2030) and estimated to be up to $3 Million.

Interested consultants are encouraged to review the RFP, background documents, and any RFP addenda online at

The deadline for submitting Proposals is 5:00 PM Pacific Time on Wednesday, July 12, 2023, electronic submittals are to be uploaded to the City’s Procurement Portal:

SPU PRE-SUBMITTAL CONFERENCE:  An optional pre-submittal conference will be held on Friday, June 16, 2023 from 10:00AM to 11:00AM Pacific Time, via MS Teams Meeting ID: 219 224 918 33, meeting password: kniXL4 at URL:

Or join by phone at: +1 206-686-8357; 124 388 156#. SPU will review the scope of work, consultant expectations, and answer questions from the prospective bidders. Although attendance at this meeting is not mandatory, attendance is highly encouraged.

Proposers may submit questions to the procurement portal (Bonfire) under the Vendor Discussions section. The City strongly prefers that consultants submit questions in Bonfire, but will accept questions submitted to the Contract Administrator in email format, as well. Questions shall be directed to Jamie Cortez, Contract Administrator & SPU’s designated contact person, at To facilitate preparation of responses to questions, please submit questions by no later than 5:00 PM Pacific Time on Wednesday, June 21, 2023. All responses to questions will be posted at under the Public Notices Section in the respective procurement opportunity.

The City of Seattle is an Equal Opportunity Employer and selection of the Consultant is subject to applicable laws and ordinances regarding equal opportunity employment.

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