This Solicitation opportunity from California was posted on March 4, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Ophir Water Treatment Plant

Closed

2025-02State & Local

Submission Closed06/03/2026, 09:00:00 PM UTC

Contract Overview

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

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NAICS: 237110

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The IEUA RMPU Basin Improvements Project involves construction improvements at Montclair Basin 2 and 3 in Chino, California. The primary objective is to divert available storm flows from the San Antonio Creek Channel into existing basins to facilitate groundwater recharge. The scope of work is comprehensive, requiring all materials, labor, tools, equipment, and transportation necessary to furnish, install, commission, and deliver a fully functional project for the Inland Empire Utilities Agency Recharge Master Plan Update. Norstar Plumbing and Engineering, Inc. is seeking certified DBE, MBE, SBE, and WBE subcontractors and suppliers to support various project needs. Key work activities include civil and site work such as grading, demolition, saw cutting, cold planing, trucking, and SWPPP implementation. Additionally, the project requires the installation of concrete pipes and structures, fabricated pipes and fittings, as well as specialized services including electrical work, welding, construction surveys, traffic control, and preconstruction video. Bids for this solicitation are due by October 29, 2026, at 2:00 PM.

Norstar Plumbing and Engineering, Inc

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DEADLINE

Morgans Branch Force Main and Pump Station Improvements

Solicitation # SRP-W-134-0290

The Morgans Branch Force Main and Pump Station Improvements project, solicitation number SRP-W-134-0290, involves the construction of 16,435 linear feet of new 20-inch ductile iron force main and extensive upgrades to the existing Morgans Branch Pumping Station in North Carolina. The scope of work includes the installation of a new wet well, valve vault, and associated appurtenances, as well as the demolition of existing pumps and piping. Additional deliverables include the installation of new gravity sewers, manholes, and a fully operational pumping station equipped with mechanical and electrical systems, a generator, and odor control equipment. The project has an estimated value of 16,690,000 dollars. This solicitation is set aside for Small Businesses, including certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. The contract will be awarded to the responsible bidder submitting the lowest responsive bid, with evaluation criteria focusing on qualifications, financial ability, and strict adherence to bidding documents, including the submission of MWBE Good Faith Efforts and Table A. The agreement is based on EJCDC standard forms, requiring performance and payment bonds, as well as proof of insurance. Bids are due by November 10, 2026, with a final bid opening date of November 12, 2026. Contract administration involves monthly progress payments due 30 days after presentation to the owner, subject to review by the Engineer and the Resident Project Representative. The contractor must adhere to rigorous technical standards, including AWS D1.2 for welding and NEMA standards for motors. Materials must be delivered in original manufacturer packaging with specific labeling and storage requirements, such as maintaining a minimum ambient temperature of 45 degrees Fahrenheit for coatings. The project commences upon the issuance of a Notice to Proceed, which typically occurs within 30 to 60 days of the bid opening or effective date.

Don Moorhead Construction, Inc.

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DEADLINE

WC 1456 Lead Pipe Inspection

Solicitation # wc-1456-lead-pipe-inspection

Spiniello Companies is seeking quotes from Minority and Women-Owned Business Enterprises for the City of Baltimore Department of Public Works project WC 1456, which focuses on lead pipe inspection and replacement in Maryland. This solicitation is open to various small business set-asides, including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone certified businesses. While the primary NAICS code is 237110, the project also considers codes 237310, 561990, 238910, 541730, and 237990. Interested parties must submit their quotes to [email hidden] by the response deadline of November 4, 2026. For further inquiries, the primary point of contact is Katherine Snider.

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Recharge Master Plan Update (RMPU) Basin Improvements Project Montclair Basin Improvements

Solicitation # recharge-master-plan-update-rmpu-basin-improvements-project-montclair-basin-improvements

The Recharge Master Plan Update Basin Improvements Project focuses on infrastructure enhancements for the Montclair Basin in San Bernardino County, California. Commissioned by the Inland Empire Utilities Agency and managed through Big Ben Engineering, this solicitation is identified by contract number IFB-JV-26-015 and falls under NAICS code 237110 for heavy and civil engineering construction. This opportunity is specifically set aside for small businesses. Interested parties should coordinate with the primary point of contact, Sep Sharifi, regarding the submission process. The solicitation was posted on October 28, 2026, with a response deadline set for October 29, 2026.

POSTED

DEADLINE

Alvarado Trunk Sewer Ph IV and Water Main Relocations Bid Package A, Contract K-27-2470-DBB-3-C

Solicitation # K-27-2470-DBB-3-C

Flatiron Dragados Constructors, Inc. has issued an Invitation to Bid for the Alvarado Trunk Sewer Ph IV and Water Main Relocations Bid Package A, Project No. K-27-2470-DBB-3-C, for the City of San Diego. This CASRF and EPA funded project seeks quotes from subcontractors and suppliers for various scopes of work, including aggregate supply, asphalt paving, electrical work, and piping. The solicitation is set aside for SBA certified Women-Owned Small Businesses and encourages Disadvantaged Business Enterprise participation. Qualified bidders must possess a valid California contractor license and be registered with the California Department of Industrial Relations in accordance with Public Contract Code Section I725.5. The project is subject to a Project Labor Agreement and requires compliance with specific insurance standards. Flatiron Dragados reserves the right to require payment and performance bonds equal to 100 percent of the contract value, with reimbursement for bond premiums up to 3 percent. Bids must remain valid for 120 days and should be submitted via email or fax to the primary point of contact, Veronica Garcia.

Flatiron Dragados Constructors, Inc.

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DEADLINE

Greenfield Wastewater Treatment Plant Upgrade Project

Solicitation # greenfield-wastewater-treatment-plant-upgrade-project-0

The City of Greenfield is seeking proposals for the Greenfield Wastewater Treatment Plant Upgrade Project, identified by contract number 2026-03. Located in Monterey, California, this solicitation is managed by Anderson Pacific Engineering Construction, Inc. under NAICS code 237110. The project is specifically set aside for various small business categories, including SBA certified Women-Owned Small Businesses, HUBZone Small Businesses, Small Disadvantaged Businesses, and Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 10, 2026. All inquiries and submissions should be directed to the Estimating Department at Anderson Pacific Engineering Construction, Inc. via email or phone. Detailed information regarding the solicitation can be accessed through the provided agency links.

Anderson Pacific Engineering Construction, Inc.

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DEADLINE

AMERICAN BOTTOMS RWTP – SLUDGE HANDLING FACILITY

Solicitation # american-bottoms-rwtp-sludge-handling-facility

River City Construction, LLC is seeking qualified subcontractors for the American Bottoms RWTP Sludge Handling Facility project located in Illinois. The comprehensive scope of work includes site and structural activities such as earthwork, concrete, masonry, metals, and finishes, as well as the installation of plumbing, HVAC, electrical, and utility systems. Additionally, the project requires specialized expertise in process interconnections, material processing and handling equipment, and water and wastewater purification and storage systems. This solicitation is specifically targeted toward Small Business Enterprises, Disadvantaged Business Enterprises, Minority Business Enterprises, Women's Business Enterprises, Service Disabled Veteran Owned, and Veteran Owned businesses. To be considered, bidders must submit their DBE, WBE, MBE, SDVOB, or VOB certification along with their proposal. Awards will be granted based on the lowest responsive bid received. The bid opening is scheduled for November 5, 2026, at 2:00 PM. Interested parties should contact JR Peterson via email at [email hidden] to obtain project documents through the SmartBidNet system.

River City Construction, LLC

POSTED

DEADLINE

BOZEMAN WATER RECLAMATION FACILITY PHASE 1 IMPROVEMENTS

Solicitation # bozeman-water-reclamation-facility-phase-1-improvements

Prospect Construction, Inc. is seeking pricing for the Bozeman Water Reclamation Facility Phase 1 Improvements project located in Montana. The solicitation covers a wide range of construction scopes, including aggregate, electrical, paving, concrete, landscape and seeding, construction survey, testing and inspection, traffic control, metal fabrications, industrial coatings, and rough carpentry. Bidders must adhere to AIS and Montana CGR requirements and comply with Prevailing or Davis Bacon Wage standards. The response deadline for this solicitation is November 19, 2026. This opportunity is designated for small businesses, including certified Veteran-Owned, Service-Disabled Veteran-Owned, Women-Owned, and HUBZone small businesses. Prospect Construction, Inc. is an equal opportunity employer and strongly encourages submissions from SBEs and DBEs, noting a willingness to divide larger contracts among multiple firms to accommodate smaller businesses.

PROSPECT CONTSTRUCTION, INC.

POSTED

DEADLINE

MWWTP Secondary Reactors Rehabilitation, Phase 2

Solicitation # mwwtp-secondary-reactors-rehabilitation-phase-2-0

The MWWTP Secondary Reactors Rehabilitation, Phase 2 project, identified by contract number SD-462, involves rehabilitation work located in Oakland, Alameda, California. The project is owned by the East Bay Municipal Utility District and is being managed by Anderson Pacific Engineering Construction, Inc. under NAICS code 237110. This solicitation is specifically set aside for Small Businesses, including SBA certified Women-Owned Small Businesses, SAM.gov designated Small Disadvantaged Businesses, and Department of Transportation Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 18, 2026. Inquiries regarding the project should be directed to the Estimating Department at Anderson Pacific Engineering Construction, Inc.

Anderson Pacific Engineering Construction, Inc.

POSTED

DEADLINE

Main Wastewater Treatment Plant Secondary Reactors Rehabilitation Phase 2 in CA

Solicitation # main-wastewater-treatment-plant-secondary-reactors-rehabilitation-phase-2-ca

Garney Pacific, Inc. is seeking quotes from qualified subcontractors for the Main Wastewater Treatment Plant Secondary Reactors Rehabilitation Phase 2 project located in Oakland, California, for the East Bay Municipal Utility District. The comprehensive scope of work involves the rehabilitation of covered and open concrete structures, including concrete resurfacing, restoration, and the installation of FRP reinforcing systems. Mechanical and structural requirements include the relining, modification, or replacement of small and large diameter steel and ductile iron pipes, pipe supports, valves, and piping appurtenances, as well as the installation of new slide gates and modifications to existing sluice gates. Additional technical tasks include the rehabilitation of reactor mixers and aerators, the installation and operation of a temporary 11 MGD pumped bypass, and extensive electrical and instrumentation upgrades, including the replacement of motor control center components. This solicitation is open to small businesses, including certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone small businesses. All subcontractors are required to utilize union labor and must be prepared to provide a 100 percent Payment and Performance Bond from a US Treasury listed Surety Company, with bond rates provided at the time of bid for reimbursement. Requested services and supplies include lead abatement, metals fabrication, painting and coatings, trucking and hauling, and the provision of access hatches. Quotes are due by November 17, 2026, at 2:00 PM PT, with the final bid date set for November 18, 2026. Submissions should be based on Garney Standard PO and Subcontract Forms, with any exceptions submitted as redlines.

POSTED

DEADLINE

Construction of the Recharge Master Plan Update Basin Improvements Project Montclair Basin Improvements, Project No. RW15003.03

Solicitation # construction-recharge-master-plan-update-basin-improvements-project-montclair-basin-improvements

The Inland Empire Utilities Agency is soliciting bids for the Construction of the Recharge Master Plan Update Basin Improvements Project, specifically focusing on Montclair Basins 2 and 3. The primary objective of this project is to construct improvements that divert storm flows from the San Antonio Creek Channel into existing basins to facilitate groundwater recharge. The selected contractor will be responsible for providing all necessary materials, labor, equipment, and facilities to ensure the project is fully installed, commissioned, and functional according to the bid documents. This solicitation, identified as Project No. RW15003.03, is designated for small businesses, including small disadvantaged, women-owned, HUBZone, and veteran-owned enterprises. The work will be performed in California under NAICS code 237110. Interested parties must adhere to the response deadline of October 29, 2026, and may contact Jordan Villalobos for further information regarding the submission process.

Inland Empire Utilities Agency

POSTED

DEADLINE

IEUA RP-5 Offsite Facilities Project No. EN19001.03 and Butterfield Lift Station Improvements Project No. EN26054

Solicitation # EN19001.03 / EN26054

Filanc is soliciting quotes for the IEUA RP-5 Offsite Facilities (Project No. EN19001.03) and Butterfield Lift Station Improvements (Project No. EN26054) located in Chino and Chino Hills, California. The comprehensive scope of work involves significant wastewater infrastructure improvements, including the installation of approximately 6,200 linear feet of 14 to 16-inch diameter HDPE DR 11 dual force mains from El Prado Road to Kimball Avenue. Additionally, the project requires the construction of a new Mountain Avenue Lift Station with two submersible pumps and a new SCE power connection, modifications to the RP-2 Lift Station to include a standby generator and an elevated electrical platform for flood protection, and the replacement of the motor control center, pumps, and motors at the Butterfield Lift Station while maintaining continuous operation. Filanc is seeking quotes across a wide array of trades, including SWPPP, survey, aggregates, demolition, fencing, paving, striping, precast concrete, rebar, masonry, metals, coatings, signage, process equipment, pre-engineered FRP enclosures, fire suppression, piping, valves, pipe supports, and electrical and instrumentation and control. This solicitation is open to small businesses, including SDB, WOSB, HUBZone, and VOSB certifications, with a strong emphasis on encouraging participation from minority-owned and disadvantaged business enterprises. Bids are due by October 29, 2025, at 2:00 PM.

Filanc

POSTED

about 1 hour ago

DEADLINE

in about 7 hours

AI Contract Overview

The contract involves the construction and completion of a drinking water treatment plant with a capacity of ten million gallons per day at the Ophir Road Water Treatment Plant site in California. Work includes modifications to the existing raw water pump station to install new pumps, as well as the construction of several key facilities such as a Powdered Activated Carbon Building, Process Building, Chemical Building, Treated Water Reservoir, Treated Water Pump Station, Backwash and Decant Holding Basins, plate settler units, gravity thickeners, Solids Handling Building, drying beds, and various pump stations and structures. The project also encompasses the installation of all related piping, equipment, electrical systems, instrumentation, controls, HVAC, plumbing, fire protection, security, and site improvements including grading, paving, yard piping, and duct banks for electrical and chemical systems. General contractors and electrical subcontractors must be prequalified to participate in the bidding process. The solicitation is issued by the Placer County Water Agency and was posted on March 4, 2026, with a response deadline of June 3, 2026. The project follows detailed plans and specifications prepared by Black and Veatch, and it requires comprehensive coordination of construction services and materials to ensure proper operation of the new treatment plant facilities. Interested parties can find further information and submit bids via the agency’s public procurement portal.

General Info

Construction of a 10 MGD water treatment plant with pump stations, buildings, and site improvements.

Agency

California → Placer County Water Agency

NAICS

237110 - Water and Sewer Line and Related Structures Construction

Place of Performance

CA, USA

Set-Aside

NONE

Documents

Addendum No. One to Contract 2025-02 Ophir Water Treatment Plant

amendment

High

Addendum No. Three for Ophir Water Treatment Plant Contract 2025-02

amendment

High

Addendum No. Two for Ophir Water Treatment Plant Contract 2025-02

amendment

High

Ophir Water Treatment Plant IFB Volume 1 of 6 Contract 2025-02

ifb

High

Ophir Water Treatment Plant IFB Volume 2 of 6 Contract 2025-02

ifb

High

Ophir Water Treatment Plant IFB Volume 3 of 6 Divisions 13-16

ifb

High

Ophir Water Treatment Plant IFB Volume 4 of 6 Appendices

ifb

High

AI Contract Breakdown

Uniform Contract Format

Timeline

1 update

PhaseClosed

PostedMar 4

Solicitation

Deadline changedMar 4

Response deadline changed from Jun 17, 2026 to Jun 3, 2026.

Response DeadlineJun 3

Deadline has passed

Submission Closed

06/03/2026, 09:00:00 PM UTC

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Organization & Contact Information

AgencyCalifornia → Placer County Water Agency

Contacts1 person available

OfficeN/A

Organization / AgencyCalifornia → Placer County Water Agency

Office AddressN/A

Contacts

Stephanie Wens

contact@example.gov

+1 (555) 000-0000

Full Description

Project Description: In accordance with plans and specifications prepared by Black and Veatch, the Work includes the furnishing of all labor, materials, tax, equipment and services for the construction and completion of a ten (10) million gallons per day capacity drinking water treatment plant at the Ophir Road Water Treatment Plant site. The work is broadly described as follows: Modifications to the existing Ophir Road Raw Water Pump Station located onsite to install new raw water pumps. Construction of new Powdered Activated Carbon Building, Process Building, Chemical Building, Treated Water Reservoir, Treated Water Pump Station, Backwash and Decant Holding Basins, plate settler units, gravity thickeners, Solids Handling Building, drying beds, miscellaneous pump stations and structures, and associated piping, equipment, electrical, instrumentation, controls, and accessories. Sitework including grading paving, yard piping, electrical and chemical duct banks and all site improvement work associated with the new facilities. All HVAC, plumbing, fire protection, electrical, instrumentation and controls, and security associated with new facilities and required for proper plant operation. General Contractors and Electrical Subcontractors have been prequalified, see Section 00020-3.