WWTP Filter Building Flocculation Equipment (Mixer) 2025

Location: Idaho
Posted: Oct 29, 2025
Due: Nov 14, 2025
Agency: City of Caldwell
Type of Government: State & Local
Category:
  • 46 - Water Purification and Sewage Treatment Equipment
  • 73 - Food Preparation and Serving Equipment
  • Y - Construction of Structures and Facilities
  • Z - Maintenance, Repair or Alteration of Real Property
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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
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