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City of Caldwell was Thickening Improvements Daft Tender - 139975046

The WASTE WATER has issued a Tender notice for the procurement of a City of Caldwell was Thickening Improvements Daft Building Construction in the USA. This Tender notice was published on 23 Apr 2026 and is scheduled to close on 25 May 2026, with an estimated Tender value of Refer Document. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 139975046, while the tender notice number is and Registering on the platform.

Procurement Summary

Country: USA

Summary: City of Caldwell was Thickening Improvements Daft Building Construction

Deadline: 25 May 2026

Posting Date: 23 Apr 2026

Other Information

Notice Type: Tender

TOT Ref.No.: 139975046

Document Ref. No.:

Competition: ICB

Financier: Self Financed

Purchaser Ownership: Public

Tender Value: Refer Document

Purchaser's Detail

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Tender Details

The City of Caldwell, Idaho will receive bids for Project Title.Bids are currently due on or before Proposal Submission Time, on Proposal Submission Date. Prospective bidders are requested to attend a non-mandatory pre-bid meeting at 1:00 PM on Wednesday, May 6th, 2026 at the City of Caldwell Wastewater Treatment Plant, 208 Johnson Ln, Caldwell, ID 83605.This project focuses on the construction and commissioning of DAFT Room No. 2 (approximately 1000 sq. ft., roughly 18 ft. tall), including supporting site, structural, and process improvements. Work begins with selective demolition and excavation to prepare the site for new foundations, followed by construction of the DAFT tank foundation, floor slab, and installation of a fully welded, watertight DAFT tank. Subgrade piping and structural penetrations will be completed early to ensure seamless integration with existing facilities and future above‑grade systems.Subsequent phases include yard improvements such as roadway realignment, paving, grading, sidewalks, and protective bollards, along with full completion of the DAFT Room No. 2 building enclosure. The project culminates in installation of the complete DAFT No. 2 treatment system, including new sludge pumps, process piping, valves, electrical and control systems, HVAC, plumbing, and a new polymer dosing system. Additional process and utility upgrades will be completed within the Blower/Solids Handling Building. Overall, the project represents a comprehensive upgrade to treatment infrastructure and offers opportunities for qualified vendors with expertise in civil, structural, mechanical, and process systems to contribute to a critical, integrated facility improvement.NOTE: The DAFT tank will be supplied by OVIVO, but will be installed/welded on site. This tank is expected to arrive Dec 2026-Jan 2027. The OVIVO equipment purchase has been executed by the Owner with an initial downpayment. The equipment purchase contract and remaining balance shall be assigned ...

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