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  5. ›Tomahawk Creek Wastewater Treatment Facility Process Improvements P…

Johnson County·Kansas

Tomahawk Creek Wastewater Treatment Facility Process Improvements Project

Closes 7/1/2026$5M – $15MInvitation for Bid
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Description

The Tomahawk Creek Wastewater Treatment Facility Process Improvements Project involves various improvements to the facility, including odor control, sidestream nitrogen treatment, gravity thickener H2S reduction, co-thickening, and more. The project requires the installation of new equipment, modification of existing systems, and construction of new structures. The successful bidder will be responsible for completing the work within the specified timeframe and budget. Key aspects of the project include: • Odor control improvements: installation of covers on the BNR Basin anaerobic and pre-anoxic basins, and addition of Odor Control System No. 4 • Sidestream nitrogen treatment improvements: separation of centrifuge startup/shutdown slop flows from the main centrate discharges and redirection to the plant drain • Gravity thickener H2S reduction: addition of ferric chloride feed capability to the Primary Sludge Gravity Thickener/Fermenter • Co-thickening improvements: modifications to allow thickened primary sludge to discharge directly to the Co-Thickened Sludge wetwell • Other improvements: primary clarifier improvements, micro-C dosing improvements, pre-anoxic mixers, digester no. 3 access improvements, and more The project requires a high level of technical expertise and experience in wastewater treatment facility construction and process improvements.

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Nicole Averell(Senior Purchasing Administrator)

[email protected]

(913) 715-0595

Key dates

Opened
5/20/2026
Questions due
6/18/2026
Pre-bid meeting
5/29/2026Mandatory
Site visit
5/29/2026Mandatory
Closes
7/1/2026
Duration
365 days

Last updated

Details

Type
Invitation for Bid
Industry
Civil Engineering
NAICS
221320
Solicitation №
2026-017 Addendum 2

Budget estimate

$5,000,000 – $15,000,000

Based on the project description, the budget for this project is estimated to be between $5 million and $15 million. This estimate is based on the scope of work, which includes various improvements to the wastewater treatment facility, and the typical costs associated with such projects. The actual budget may vary depending on the bids received and the final contract award. Factors that may influence the budget include the complexity of the work, the materials and equipment required, and the labor costs associated with the project.

AI estimate from the solicitation

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