This Solicitation opportunity from Kansas was posted on May 20, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Tomahawk Creek Wastewater Treatment Facility Process Improvements Project

Closed

2026-017State & Local

Submission Closed06/25/2026, 08:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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NAICS: 221320

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Solicitation # FA448627Q0002

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FA4486 765 Abs Conf

POSTED

16 days ago

DEADLINE

in 27 days

AI Contract Overview

The contract calls for a series of process improvements at the Tomahawk Creek Wastewater Treatment Facility to enhance odor control, sludge handling, and operational efficiency. Key upgrades include installing covers and odor control systems on anaerobic and pre-anoxic basins, improving sidestream nitrogen treatment by rerouting certain flows to prevent solids buildup, and reducing hydrogen sulfide emissions through ferric chloride dosing. Other enhancements include modifications to allow co-thickened sludge discharge directly to the wetwell, adding mixers to pre-anoxic zones to improve scum movement, replacing a ladder with a safer stair tower for digester access, and upgrading chlorine contact basin components to corrosion-resistant materials. Additional improvements focus on safety and operational automation, such as electric actuators installed on various influent gates, safety platforms for disk filters, and a new storm drain isolation system near ferric chloride unloading to prevent chemical spills. Bidders are required to submit sealed bids electronically through IonWave by June 25, 2026, including a bid bond equal to 5% of the total bid amount issued by a surety licensed in Kansas. The project is managed by Johnson County, Kansas, with Nicole Averell as the primary contact.

General Info

Process improvements at Tomahawk Creek plant including odor control, sludge handling, safety, and automation upgrades.

Agency

Kansas → Johnson County

NAICS

221320 - Sewage Treatment Facilities

Place of Performance

KS, USA

Set-Aside

NONE

Documents

2026-017 Tomahawk Creek Wastewater Treatment Facility Process Improvements Project Invitation for Bid

ifb

High

Bid Bond for Johnson County Wastewater Tomahawk Creek WWTF Process Improvements

bid-bond

High

Questionnaire for Manufacturer Information Submission

questionnaire

High

Tomahawk Creek Contract 26 WWTF Expansion Electrical and Mechanical Plans V4

specifications

High

Tomahawk Creek Contract 26 WWTF Expansion General Notes Volume 6

specifications

High

Tomahawk Creek Contract 26 WWTF Expansion Structural and Mechanical Plans V2

specifications

High

Tomahawk Creek Contract 26 WWTF Expansion Structural Drawings Volume 4

specifications

High

Tomahawk Creek Contract 26 WWTF Expansion Volume 1 of 8

specifications

High

Tomahawk Creek Contract 26 WWTF Expansion Volume 7 of 8

specifications

High

Tomahawk Creek Contract 26 WWTF Expansion Volume 8 of 8

specifications

High

Tomahawk Creek WWTF Process Improvements 100% Drawings

specifications

High

Tomahawk Creek WWTF Process Improvements 100% Specifications and IFB

ifb

High

AI Contract Breakdown

Uniform Contract Format

Timeline

PhaseClosed

PostedMay 20

Solicitation

Response DeadlineJun 25

Deadline has passed

Submission Closed

06/25/2026, 08:00:00 PM UTC

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Organization & Contact Information

AgencyKansas → Johnson County

Contacts1 person available

OfficeKS, USA

Organization / AgencyKansas → Johnson County

Office AddressKS, USA

Contacts

Nicole Averell

+1 (555) 000-0000

Full Description

S e a l e d b i ds f or Bi d R e q u est No. 2026-017 f or J o h nson C o u n t y W a s te w a ter Tomahawk Creek WWTF Process Improvements Project – Contract No. THM1-C031. The w ork co n s i s ts of th e f ol l o w i n g improvements to the Tomahawk Creek WWTF : A. Odor Control Improvements: Installation of covers on the BNR Basin anaerobic and pre-anoxic basins, and addition of Odor Control System No. 4. Customized rubber mat covers will also be added to the BNR Influent Splitter Box and RAS Splitter boxes to mitigate odor complaints and improve operational flexibility for VFA production. B. Sidestream Nitrogen Treatment Improvements: Separation of centrifuge startup/shutdown slop flows from the main centrate discharges and redirection to the plant drain to reduce solids accumulation in the Centrate Holding Basin. C. Gravity Thickener H 2 S Reduction: Addition of ferric chloride feed capability to the Primary Sludge Gravity Thickener/Fermenter to reduce hydrogen sulfide generation and loading on odor control units. D. Co-Thickening Improvements: Modifications to allow thickened primary sludge (TPS) to discharge directly to the Co-Thickened Sludge (CTS) wetwell, addition of a fifth digester feed pump for continuous mixing, and installation of pressure sensors on digester feed pump discharge piping with SCADA integration. E. Sludge Cleanout Manhole: Addition of a sludge cleanout manhole over the (3) 4” CTS lines between the Solids Processing Building and Digester Control Building to facilitate future line cleaning. F. Primary Clarifier Improvements: Construction of an access drive and installation of cleanouts for scum pit drainpipes, and addition of electric actuators to six PC Influent Slide Gates at the Headworks Building. G. Micro-C Dosing Improvements: Replacement of potable water with Plant Effluent Water (PEW) as carrier water for Micro-C dosing, and rerouting of Micro-C discharge lines above grade for improved visibility and control. H. Pre-Anoxic Mixers: Addition of a second submersible mixer in pre-anoxic zones PAX1-1 and 3-1 to facilitate the movement of scum out of pre-anoxic zones. I. Digester No. 3 Access Improvements: Replacement of the existing 21-ft tall cageless ladder with a stair tower to improve safety and accessibility to the digester roof. Demo of existing ladder. J. Chlorine Contact Basin Improvements: Replacement of all aluminum slide gates with corrosion-resistant materials due to chloride-induced deterioration. K. Filter Complex Improvements: Installation of an electric actuator on the secondary effluent/filter influent gate for automated wet weather operation, and addition of safety platforms to the eight disk filter basins to enhance maintenance access and safety. L. Storm Drain Isolation near Ferric Tanks: Installation of an isolation drainage system near the ferric chloride truck unloading station to prevent chemical spills from entering the storm sewer system, as identified by KDHE. Bi d d e rs s h a l l su b m i t w i th t h e i r b i d a b i d b o n d i ss u e d b y a s u r e t y c o m p a n y l i c e n se d to do b us i n ess i n t he S t a te of K a nsas i n t h e a m o u nt of f i v e p e r ce nt (5%) of the to t al a m o u nt of th ei r b i d. S aid g u ara n tee s h a l l b e m a d e p a y a ble to the B o a rd of Co u n t y Co m m i ss i o n ers of Jo h nson C o u n t y , K a nsas. All bids shall be submitted electronically on IonWave .