Professional Services for the Regional Wastewater Services Plan Update

Agency: King County
State: Washington
Type of Government: State & Local
NAICS Category:
  • 541330 - Engineering Services
  • 541611 - Administrative Management and General Management Consulting Services
  • 541620 - Environmental Consulting Services
  • 541990 - All Other Professional, Scientific, and Technical Services
  • 611430 - Professional and Management Development Training
Posted Date: Oct 3, 2025
Due Date: Oct 29, 2025
Solicitation No: KC001495
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Description
Abstract: A&E Solicitation KC001495,2
Title Professional Services for the Regional Wastewater Services Plan Update
Solicitation Type A&E Solicitation
Status Active
Buyer Debora Hall
Email debhall@kingcounty.gov
Synopsis The purpose of this contract is to provide engineering, strategic, planning, communications, engagement, and related services to King County Wastewater Treatment Division (“County”), leading to the development of an updated general sewer plan (“Regional Wastewater Services Plan Update” or “RWSP Update”). This effort will update the County’s existing sewer plan, the Regional Wastewater Services Plan (“RWSP”), which was developed in the late 1990s.
Addendum Description Addendum 2 has been issued.

Consultants must acknowledge all addenda before submitting a proposal. If a Consultant has already submitted a proposal, they must log into the E-Procurement Supplier Portal, acknowledge the addendum, and resubmit.
Attachments
KC001495-addendum-2.pdf (356.59 KB)
KC001495-rfp-documents.zip (2.71 MB)
KC001495-addendum-1.pdf (388.19 KB)
Open Date 10/3/25 08:15:03 AM
Close Date 10/29/25 12:00:59 PM
Posting Date 10/3/25
Additional Information
KC Solicitation NAICS Code(s) 541330
Small Business Requirements Apply? Yes
Department NATURAL RESOURCES AND PARKS
Division WASTEWATER TREATMENT
O K
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