This Subcontract opportunity from California was posted on July 29, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Underground Utility Subcontractor

Closed

State & Local

Submission Closed09/14/2026, 05:00:00 PM PDT

Contract Overview

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

Active Opportunities Like This One

NAICS: 237110

New

26350 Lynchburg, VA - CSO 70 Sewer Improvements

Solicitation # 2027-027

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 SBA-certified small businesses, including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone small businesses. Interested firms must submit their responses by December 4, 2026. The scope of work involves comprehensive sewer improvements, including the installation of PVC sanitary sewers ranging from 6 to 30 inches and DIP sewers from 18 to 24 inches using both open cut and trenchless crossing methods. Key deliverables include the construction of standard and doghouse manholes, drop assemblies, and a CSO regulator fit out. Additional requirements encompass general site preparation such as SWPPP implementation, clearing and grubbing of 5,130 square yards of wooded areas, seeding, fine grading, and the removal of select trees. Specialized project needs include geotechnical instrumentation and monitoring, the procurement of railroad insurance, and the maintenance of flows and bypass.

Cleary Construction, Inc.

POSTED

DEADLINE

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, managed by W.M. Lyles Co., is categorized under NAICS code 237110 for water and sewer line construction. Interested parties must submit their responses by the deadline of November 17, 2026. This opportunity is specifically set aside for various small business classifications, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, and Women-Owned Small Businesses, as well as SAM.gov designated Small Disadvantaged Businesses. Primary inquiries and submissions should be directed to Scott Fults via the provided contact information.

POSTED

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 includes replacing 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 specifically set aside 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.

Specialty Construction, Inc.

POSTED

DEADLINE

IEUA Regional Water Recycling Plant No. 5(RP5) Offsite Facilities and Butterfield Lift Station

Solicitation # ieua-regional-water-recycling-plant-no-5rp5-offsite-facilities-butterfield-lift-station

The IEUA Regional Water Recycling Plant No. 5 Offsite Facilities and Butterfield Lift Station project, managed by Norstar Plumbing and Engineering, Inc. for the Inland Empire Utilities Agency, involves the comprehensive installation, commissioning, and delivery of critical water and sewer infrastructure in Chino, California. The scope of work is centered on four major components: the Butterfield Dual Force Main, the Mountain Avenue Lift Station, the RP-2 Lift Station, and the Butterfield Lift Station. To achieve a fully functional system, the project requires a wide array of materials and services, including AC paving, pipes and fittings, traffic loops, jack and bore operations, cold planing, SWPPP, demolition, potholing, and welding. This solicitation is specifically targeting certified and qualified partners, including HUBZone Small Businesses, Disadvantaged Business Enterprises, and other minority or women-owned business entities. Interested subcontractors must submit their responses by the deadline of November 19, 2026, at 2:00 PM. Primary points of contact for this effort are Destiny Plummer and Nathan Plummer, who are coordinating the outreach and bidding process for the project.

Norstar Plumbing and Engineering, Inc

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. is soliciting bids 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 requires subcontractors and suppliers for a wide range of scopes, including aggregate and pipe supply, asphalt paving, electrical work, minor concrete, surveying, and landscaping. 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 by the deadline, with conflicting dates listed as October 28 and December 3, 2026. All quotes must remain valid for 120 days. Qualified subcontractors must hold a valid California contractor license and be registered with the California Department of Industrial Relations. The project is subject to a Project Labor Agreement, and the contractor reserves the right to require payment and performance bonds equal to 100 percent of the contract value, with bond premium reimbursement available up to 3 percent.

Flatiron Dragados Constructors, Inc.

POSTED

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 the Machado Wastewater Treatment Facility. 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. Further details regarding the scope of work and submission requirements can be accessed through the provided agency links.

Cushman Contracting Corporation

POSTED

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 administration building. Additionally, the project requires expertise in electrical and SCADA systems, yard piping, and general sitework. This solicitation is specifically set aside for 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 submissions should be directed to Michael Demissie via the estimating department at GSE Construction Co., Inc.

GSE Construction Co., 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 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. As an equal opportunity employer, the agency strongly encourages submissions from Small Business Enterprises and Disadvantaged Business Enterprises, including women, minority, and veteran-owned firms. To support these entities, the company may divide larger contracts among multiple SBE or DBE firms. Interested parties should contact Ryan Sondgroth for further coordination.

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, California, managed by Anderson Pacific Engineering Construction, Inc. for the East Bay Municipal Utility District. Identified by contract number SD-462 and NAICS code 237110, this project focuses on the rehabilitation of secondary reactors at a municipal wastewater treatment plant. 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 solicitation should be directed to the Estimating Department at Anderson Pacific Engineering Construction, Inc.

Anderson Pacific Engineering Construction, Inc.

POSTED

DEADLINE

Pump Station 2 Improvements and Modernization

Solicitation # pump-station-2-improvements-modernization

Filanc is soliciting quotes for the Pump Station 2 Improvements and Modernization project located in California. The scope of work is extensive, covering demolition, rebar, metals, roofing, coatings, insulation, process equipment, piping, valves, pipe supports, HVAC, electrical, and instrumentation. This opportunity is designated as an SBA set-aside, welcoming bids from small businesses, including certified veteran-owned, service-disabled veteran-owned, women-owned, and HUBZone small businesses. Interested parties must submit their responses by the deadline of December 10, 2026. The primary point of contact for this solicitation is Dan Phelan. The project falls under several NAICS codes, primarily 237110, reflecting a broad range of industrial construction and specialty trade requirements.

POSTED

DEADLINE

Long Prairie MN Water Treatment Plant Rehab

Solicitation # long-prairie-mn-water-treatment-plant-rehab

CC Steel LLC is soliciting bids from subcontractors and material suppliers for the Long Prairie MN Water Treatment Plant Rehab project in Minnesota. This comprehensive rehabilitation effort spans numerous construction divisions, including concrete, metals, rough carpentry, thermal and moisture protection, openings, and finishes. The scope also covers specialized installations such as plumbing, HVAC, electrical systems, and exterior improvements like roads and curbs. Significant technical requirements include process interconnections, water valves, instrumentation, refrigerant dryers, and various water and wastewater equipment including chlorination and fluoridation systems. This solicitation is set aside for small businesses, including certified Veteran, Service-Disabled Veteran, Women-Owned, and HUBZone small businesses. Interested parties must respond by November 16, 2026, and can coordinate with primary point of contact Pete Aldritt.

POSTED

DEADLINE

Chiquola and Clatworthy Subbasing Sewer Rehab Ph. 3- Town of Honea Path, SC

Solicitation # chiquola-clatworthy-subbasing-sewer-rehab-ph-3-town-honea-path-sc

North American Pipeline Management, LLC is seeking Disadvantaged Business Enterprise subcontractors for the Chiquola and Clatworthy Subbasin Sewer Rehab Phase 3 project located in Honea Path, South Carolina. The solicitation focuses on several specialized scopes of work, including trucking and hauling, traffic control, clearing and grubbing, CCTV services, manhole rehabilitation, CIPP, surveying, and erosion control. The project is designated for specific set-asides, including SBA certified Women-Owned Small Businesses, SAM.gov designated Small Disadvantaged Businesses, and Department of Transportation DBEs. Interested parties must note that the bid date is November 24, 2026, at 2 PM, with a response deadline for the solicitation set for November 19, 2026. Contract documents and plans are available for review through the primary point of contact, Bryce Yarbrough.

North American Pipeline Management, LLC

POSTED

about 7 hours ago

DEADLINE

in 6 days

AI Contract Overview

This subcontract involves the installation of underground water distribution, sanitary sewer, and storm drainage systems for community center projects in the City of Manhattan Beach. The selected subcontractor will be responsible for installing fire hydrants, valves, manholes, and Ecorain Tank biofiltration systems, utilizing ductile iron pipe and PVC pipe to deliver a fully tested and connected utility network. The opportunity is managed by the California Public Works agency under NAICS code 237110. Interested parties must submit their responses by the deadline of September 15, 2026.

General Info

Subcontract for water, sewer, and storm drainage installation in Manhattan Beach by 09/15/2026.

Agency

California → Public Works

NAICS

237110 - Water and Sewer Line and Related Structures Construction

Place of Performance

CA, USA

Set-Aside

NONE

Documents

This scope was carved out of EI304-26S.

The full solicitation package (23 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Professional Project Management, Construction Management, and Inspection Services for Senior and Scout House Community Center Project (D-950)

AI Contract Breakdown

Uniform Contract Format

No documents to break down

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Timeline

PhaseClosed

PostedJul 29

subcontract

Response DeadlineSep 14

Deadline has passed

Submission Closed

09/14/2026, 05:00:00 PM PDT

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Organization & Contact Information

AgencyCalifornia → Public Works

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → Public Works

Office AddressN/A

ContactsNo contact information available

Full Description

Installs underground water distribution, sanitary sewer, and storm drainage systems for prime contractors on City of Manhattan Beach community center projects. Installs fire hydrants, valves, manholes, and Ecorain Tank biofiltration systems using ductile iron pipe (AWWA C151) and PVC pipe (ASTM D1785/D3034). Delivers a fully tested and connected underground utility network.