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 7, 2026
Due Date:	Aug 12, 2026
Solicitation No:	KC001675
Original Source:	Please Login to View Page
Contact information:	Please Login to View Page
Bid Documents:	Please Login to View Page

Abstract: Construction Solicitation KC001675,3

Title

Solicitation Type

Construction Solicitation

Status

Active

Buyer

Lea McCormick

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

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