This Subcontract opportunity from New York was posted on September 23, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Tertiary Disc Filtration Systems

Closed

State & Local

Submission Closed10/28/2026, 12:00:00 AM EDT

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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26350 Lynchburg, VA - CSO 70 Sewer Improvements

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Cleary Construction is soliciting quotations from certified Disadvantaged Business Enterprises (DBEs) for the City of Lynchburg CSO 70 Sewer Improvements project in Virginia, identified by solicitation number 2027-027. This opportunity is open to various small business set-asides, including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone certified firms. Interested parties must submit their responses by December 4, 2026. The primary point of contact for this solicitation is John Connelly. The scope of work involves comprehensive sanitary sewer infrastructure improvements, including the open cut installation of PVC pipes ranging from 6 to 30 inches and Ductile Iron Pipe (DIP) in 18 and 24-inch diameters. Key technical requirements include the installation of standard and doghouse manholes, interior drop assemblies, and 24-inch diameter trenchless crossings with associated launch and receiving shafts. Additional deliverables include a CSO regulator fit out, an outfall, and the implementation of a Stormwater Pollution Prevention Plan (SWPPP). Contractors are responsible for maintaining flows and bypass during construction, providing geotechnical instrumentation and monitoring, and securing required railroad insurance. General site work such as clearing, grubbing, and seeding is also required.

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DEADLINE

Morgans Branch Force Main and Pump Station Improvements

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The Morgans Branch Force Main and Pump Station Improvements project, solicitation number SRP-W-134-0290, is a construction contract for the City of Belmont, North Carolina, with an estimated value of 16,690,000 dollars. The scope of work involves the construction of 16,435 linear feet of new 20-inch ductile iron force main and comprehensive upgrades to the Morgans Branch Pumping Station. Key deliverables include the installation of a new wet well, valve vault, pumps, a generator, and odor control equipment, as well as the demolition of existing pumps and piping. Additional requirements include the installation of new gravity sewers, manholes, stormwater facilities, and site restoration. The contract will be awarded to the responsible bidder submitting the lowest responsive bid, with a strong emphasis on qualifications, financial ability, and compliance with M/WBE requirements, including the submission of Good Faith Efforts forms. Bidders must adhere to strict technical standards, such as AWWA Specification C-600 for pipelines and NEMA standards for motors. Contract administration is managed by Willis Engineers on behalf of the City of Belmont, utilizing EJCDC standard forms for agreements and payment applications. Required security includes performance and payment bonds, and insurance providers must typically maintain an A.M. Best rating of A-VII or better.

Don Moorhead Construction, Inc.

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Wellhead Treatment Improvement PS102A

Solicitation # wellhead-treatment-improvement-ps102a

The City of Fresno is seeking proposals for the Wellhead Treatment Improvement PS102A project located in Fresno, California. This solicitation, identified by contract number 12700259, is being managed by W.M. Lyles Co. and falls under NAICS code 237110 for heavy and civil engineering construction. The opportunity is specifically set aside for various small business categories, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, and Women-Owned Small Businesses, as well as Small Disadvantaged Businesses. Interested parties must submit their responses by the deadline of November 17, 2026. Primary inquiries regarding this project should be directed to Scott Fults.

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DEADLINE

Machado Wastewater Treatment Facility (WWTF) Upgrade and Expansion

Solicitation # machado-wastewater-treatment-facility-wwtf-upgrade-expansion

The Machado Wastewater Treatment Facility Upgrade and Expansion project involves the modernization of an existing facility in California. The primary scope of work is to replace the current pond-based process with a membrane bioreactor system. A critical requirement of the contract is the maintenance of continuous treatment operations throughout the construction, commissioning, testing, and final acceptance phases. This solicitation is issued by Specialty Construction, Inc. and is set aside specifically for small businesses under NAICS code 237110. Interested parties must submit their responses by the deadline of December 4, 2026. Primary points of contact for the bidding process are Tom Seidel and Sheri Shambli.

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DEADLINE

Jefferson St. Pump Station Replacement

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The City of Winchester is soliciting bids for the Jefferson Street Pump Station Replacement project in Virginia. The scope of work includes the construction of a new pump station featuring a precast concrete building, controls, and a standby generator, as well as site electrical work, yard piping, security fencing, grading, and paving. Additionally, the project requires the relocation of an existing fuel tank and the demolition of existing facilities. All work must be completed within 610 calendar days following the Notice to Proceed, with liquidated damages set at 1,000 dollars per day for delays. WG Construction is seeking MBE/WBE subcontractor participation for paving, material supply, site development, fencing, MEP, roofing, and carpentry. Bids are due by 2:00 pm on November 12, 2026, and must be submitted via the City's e-Procurement Portal. The contract will be awarded to the lowest responsive and responsible bidder. Requirements for the successful bidder include providing performance and payment bonds equal to 100 percent of the contract amount, adhering to Davis-Bacon wage determinations, and ensuring all new sidewalks and ramps meet ADA standards. Bidders must be registered in the Commonwealth of Virginia and provide a 5 percent bid guarantee.

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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 electrical, paving, pipe supply, and aggregate supply. The solicitation is set aside for SBA certified Women-Owned Small Businesses and encourages Disadvantaged Business Enterprise participation. Bids must be submitted via email or fax, with a final response deadline of December 3, 2026. All participating subcontractors must maintain 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 adherence to Flatiron Dragados insurance requirements and contract terms. Bids must remain valid for 120 days from the due date. Additionally, the company reserves the right to require payment and performance bonds equal to 100 percent of the contract value, with actual bond premium costs reimbursable up to 3 percent of the contract value.

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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 bids 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 small businesses, including SBA certified Women-Owned Small Businesses, HUBZone 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 10, 2026. Inquiries regarding the bidding process should be directed to the Estimating Department at Anderson Pacific Engineering Construction, Inc. via email or phone. Detailed information and submission guidelines are available through the provided solicitation links.

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DEADLINE

Machado WWTF Upgrade and Expansion

Solicitation # machado-wwtf-upgrade-expansion

The Machado WWTF Upgrade and Expansion project is a solicitation for construction services located in San Miguel, San Luis Obispo, California. Managed by the San Miguel Community Service District under contract number EJCDC C-111, the project focuses on the upgrade and expansion of wastewater treatment facilities. The solicitation is being handled by Cushman Contracting Corporation, with Melia Raj serving as the primary point of contact. This opportunity falls under NAICS code 237110 for water and sewer line construction. Interested parties must submit their responses by the deadline of November 20, 2026. The project is open for bids following its posting on November 8, 2026, and is associated with Disadvantaged Business Enterprise guidelines through the Department of Transportation.

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DEADLINE

NTUA - Tuba City WWTP Improvements (NTUA-2026), Tuba City, AZ

Solicitation # ntua-tuba-city-wwtp-improvements-ntua-2026-tuba-city-az

GSE Construction Co., Inc. is soliciting quotes from subcontractors and suppliers for the NTUA Tuba City WWTP Improvements project in Tuba City, Arizona. The scope of work is extensive, encompassing the construction of headworks, an influent pump station, aeration basins, blower and dewatering buildings, UV disinfection, and an admin building. Additionally, the project requires electrical and SCADA systems, yard piping, and general sitework. This opportunity is designated as an 8A set-aside, specifically targeting 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 November 24, 2026. Primary inquiries and quotes should be directed to Michael Demissie at GSE Construction Co., Inc.

GSE Construction Co., Inc.

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DEADLINE

Magruder Mercury Interceptor Force Main Replacement – Section B (YR010520/VCWRLF)

Solicitation # magruder-mercury-interceptor-force-main-replacement-section-b-yr010520vcwrlf

The Magruder Mercury Interceptor Force Main Replacement Section B project, managed by Garney Companies, Inc., involves the installation of approximately 4,480 linear feet of ductile iron pipe to replace existing 24-inch and 30-inch sanitary force mains in Virginia. The scope of work includes two trenchless crossings, the replacement of a meter vault and site yard piping at the Langley Circle Pump Station, and the abandonment of the old 30-inch force main. Work will be concentrated in two primary areas: the vicinity of the Langley Circle Pump Station spanning Thornrose, Bland, and Doolittle Streets, and a section of Mercury Boulevard between Air Power Park and a specific vacant parcel for connection in Doolittle Road. This solicitation is designated as a set-aside for Small Businesses, including SBA certified Women-Owned Small Businesses and Disadvantaged Business Enterprises. The project falls under NAICS code 237110 for water and sewer line construction. Interested parties must adhere to the response deadline of November 10, 2026, with primary coordination handled through Kruti Patel at Garney Companies, Inc.

Garney Companies, Inc.

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 scope of work is extensive, covering various trades 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. This solicitation is open to a wide range of small businesses, including certified Veteran, Service-Disabled Veteran, Women-Owned, and HUBZone small businesses. The company actively encourages submissions from SBEs and DBEs, noting a willingness to split contracts among multiple firms if the project size exceeds a single firm's capacity. Interested parties must submit their pricing by November 19, 2026, and can coordinate with Ryan Sondgroth for further details.

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 is a solicitation for construction services located in Oakland, Alameda, California. Managed by Anderson Pacific Engineering Construction, Inc. for the East Bay Municipal Utility District under contract number SD-462, the work falls under NAICS code 237110. This opportunity 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.

Anderson Pacific Engineering Construction, Inc.

POSTED

about 5 hours ago

DEADLINE

in 10 days

AI Contract Overview

This subcontract for the Niagara Falls Water Board involves the supply and installation of tertiary disc filtration systems for wastewater treatment plant projects. The scope of work includes the installation of filtration units, effluent flow piping, backwash systems, and control integration, utilizing automated backwash controllers and effluent pumps. The final deliverable is a fully installed and commissioned disc filtration system. Qualified candidates must hold a Professional Engineer license and possess specific experience with secondary treatment filtration. The project falls under NAICS code 237110, with a response deadline of October 28, 2026.

General Info

Subcontract for installing tertiary disc filtration systems at Niagara Falls Water Board by 10/28/2026.

Agency

New York → Niagara Falls Water Board

NAICS

237110 - Water and Sewer Line and Related Structures Construction

Place of Performance

NY, USA

Set-Aside

NONE

Documents

This scope was carved out of 2139286.

The full solicitation package (3 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Request for Qualifications (“RFQ”) No. 2026-01 Biological Treatment Upgrade

AI Contract Breakdown

Uniform Contract Format

No documents to break down

The breakdown needs solicitation documents. None were found from this contract's source.

Timeline

PhaseClosed

PostedSep 23

subcontract

Response DeadlineOct 28

Deadline has passed

Submission Closed

10/28/2026, 12:00:00 AM EDT

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Organization & Contact Information

AgencyNew York → Niagara Falls Water Board

ContactsNo contacts available

OfficeN/A

Organization / AgencyNew York → Niagara Falls Water Board

Office AddressN/A

ContactsNo contact information available

Full Description

Supplies and installs disc filtration systems for prime contractors on Niagara Falls Water Board WWTP projects. Installs filtration units, effluent flow piping, backwash systems, and control integration. Utilizes disc filters, automated backwash controllers, and effluent pumps. Requires PE license and experience with secondary treatment filtration. Delivers an installed and commissioned disc filtration system.

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