Project Information

Bid Title

South Treatment Plant Dissolved Air Flotation Thickener Tanks Rehabilitation

Issuing Agency

King County

Location

Washington

Published Date

Aug 7, 2026

Closing Date

Aug 12, 2026

Government Level

State & Local

Status

Closed

Ref. #

KC001675

Original Source

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Bid Documents

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Project Description

	Abstract: Construction Solicitation KC001675,3
	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 3 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-3.pdf (6.61 MB) KC001675-addendum-1.zip (1.5 MB) KC001675-itb-documents.zip (344.7 MB) KC001675-addendum-2.pdf (2.43 MB) Open Date 8/7/26 11:12:19 AM Close Date 8/12/26 01:30:59 PM Posting Date 8/7/26 Additional Information KC Solicitation NAICS Code(s) 221320;237110 Small Business Requirements Apply? Yes Department NATURAL RESOURCES AND PARKS Division WASTEWATER TREATMENT
	O K

Commodity Codes

• NAICS 237110Water and Sewer Line and Related Structures Construction
• NAICS 237990Other Heavy and Civil Engineering Construction

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