South Treatment Plant Dissolved Air Flotation Thickener Tanks Rehabilitation

Agency: King County
State: Washington
Type of Government: State & Local
NAICS Category:
  • 237110 - Water and Sewer Line and Related Structures Construction
  • 237990 - Other Heavy and Civil Engineering Construction
Posted Date: Aug 11, 2026
Due Date: Aug 18, 2026
Solicitation No: KC001675
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Description
Abstract: Construction Solicitation KC001675,4
Title South Treatment Plant Dissolved Air Flotation Thickener Tanks Rehabilitation
Solicitation Type Construction Solicitation
Status Active
Buyer Lea McCormick
Email lmccormick@kingcounty.gov
Synopsis The project work is located at the South Treatment Plant, 1200 Monster Road SW, Renton, Washington 98057. The purpose of this project is to modify and replace six dissolved air flotation thickener (DAFT) mechanisms, piping and appurtenances, their related cover systems and access hatches, and associated electrical equipment. This project also includes the modification of the existing concrete tank walls for four DAFTs.
Addendum Description Addendum 4 has been issued. Suppliers must acknowledge all addenda before submitting a response. If a supplier has already submitted a response, they MUST log into the E-Procurement Supplier Portal, acknowledge the addendum, and resubmit.
Attachments
KC001675-addendum-4.pdf (766.29 KB)
KC001675-addendum-2.pdf (2.43 MB)
KC001675-itb-documents.zip (344.7 MB)
KC001675-addendum-1.zip (1.5 MB)
KC001675-addendum-3.pdf (6.61 MB)
Open Date 8/11/26 03:33:13 PM
Close Date 8/18/26 01:30:59 PM
Posting Date 8/11/26
Additional Information
KC Solicitation NAICS Code(s) 221320;237110
Small Business Requirements Apply? Yes
Department NATURAL RESOURCES AND PARKS
Division WASTEWATER TREATMENT
O K
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