Project Information

Bid Title

WWTP Filter Building Flocculation Equipment (Mixer) 2025

Issuing Agency

City of Caldwell

Location

Idaho

Published Date

Oct 29, 2025

Closing Date

Nov 14, 2025

Government Level

State & Local

Status

Closed

Original Source

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Bid Documents

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Project Description

Project ID:

Title: WWTP Filter Building Flocculation Equipment (Mixer) 2025

Addenda: 1

Release Date: 10/20/2025

Due Date: 11/14/2025

Post Information

Posted At:Mon, Oct 20, 2025 10:00 AMSealed Bid Process:Yes (Bids Sealed / Pricing Sealed)Private Bid:No

Overview

Summary

This City of Caldwell is requesting proposals from qualified companies to provide the City Wastewater Treatment Plant (WWTP) Filter Building with flocculation mixers inside each of two flash mixing basins. The flocculators will enable the City WWTP staff to dose flocculation chemicals ahead of their filter.

All proposals shall be submitted online through the City’s OpenGov procurement portal prior to the due date and time. No late proposals will be accepted.

Background

The City of Caldwell WWTP holds an NPDES permit with phosphorus limits to be met by 2026.

PURPOSE: The City of Caldwell (Owner) is adding a flocculation stage to their existing wastewater treatment plant (WWTP) as part of a project to add chemical addition to their tertiary filtration process. Procurement Contract Documents have been prepared to solicit Proposals to be submitted for review. The purpose of this Request for Proposals (RFP) is to select a Supplier with demonstrated experience with flocculation equipment.

Timeline

Release Project Date:

October 20, 2025

Question Submission Deadline:

November 5, 2025, 5:00pm

Question Response Deadline:

November 7, 2025

Submission Deadline:

November 14, 2025, 3:00pm

Evaluation of Proposals:

11/21/2025

Interviews of Firms If Needed:

Date - Date

Contract to City Council for Approval:

December 1, 2025

Commodity Codes

• NAICS 236220Commercial and Institutional Building Construction

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