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

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Stormwater Management System Construction

Closed

State & Local

Submission Closed07/16/2026, 03:00:00 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 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 scope of work involves comprehensive sewer infrastructure improvements, including the open-cut installation of PVC and Ductile Iron Pipe ranging from 6 to 30 inches in diameter, as well as 24-inch diameter trenchless crossings with associated launch and receiving shafts. Additional requirements include the installation of standard and doghouse manholes, drop assemblies, and a CSO regulator fit out. Site preparation tasks consist of clearing and grubbing over 5,100 square yards of wooded areas, seeding, fine grading, and the implementation of a Stormwater Pollution Prevention Plan. Key operational deliverables include the maintenance of flows and bypass for all pipes and manholes during construction, geotechnical instrumentation and monitoring, and the procurement of railroad insurance. The project also involves various abandonment tasks for existing pipes and manholes and extra depth excavation. Point of contact for this solicitation is John Connelly.

Cleary Construction, Inc.

POSTED

DEADLINE

Morgans Branch Force Main and Pump Station Improvements

Solicitation # SRP-W-134-0290

The Morgans Branch Force Main and Pump Station Improvements project for the City of Belmont, North Carolina, involves the construction of 16,435 linear feet of new 20-inch ductile iron force main and extensive upgrades to the Morgans Branch Pumping Station. Key scope elements include the installation of a new wet well, valve vault, and associated appurtenances, as well as the demolition of existing pumps and piping. The project also requires the installation of new gravity sewers and manholes. The estimated project value is 16,690,000 dollars, and the contract will be awarded to the responsible bidder submitting the lowest responsive bid. The contract is governed by EJCDC standard general and supplementary conditions and requires bidders to provide a bid bond, performance bond, and payment bond. Compliance with North Carolina Administrative Code regarding Minority and Women-Owned Business Enterprise (M/WBE) requirements is mandatory, necessitating the submission of a Good Faith Efforts Form and Table A. Performance is subject to liquidated damages of 1,000 dollars per day for failure to achieve substantial completion. Payment is processed monthly via applications for payment submitted to the Engineer, with payments becoming due 30 days after presentation to the owner. All work must adhere to strict technical standards, including AWWA Specification C-600 for pipelines and NEMA standards for electric motors.

Don Moorhead 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. under contract number 12700259, falls under NAICS code 237110 for heavy and civil engineering construction. Interested parties must submit their responses by the deadline of November 17, 2026. This opportunity is specifically set aside for small businesses, 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 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 this opportunity 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

Norstar Plumbing and Engineering, Inc

POSTED

DEADLINE

Jefferson St. Pump Station Replacement

Solicitation # ITB-2026141

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 the installation of site electrical, 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. The contract will be awarded to the lowest responsive and responsible bidder. Bidders must be registered in the Commonwealth of Virginia and provide a bid guarantee via a certified check or bid bond, with the successful awardee required to provide performance and payment bonds for 100 percent of the contract amount. The project is subject to Davis-Bacon wage determinations and requires compliance with OSHA, ADA, and various non-discrimination and labor laws. WG Construction is specifically seeking MBE/WBE subcontractor participation for paving, material supply, site development, fencing, MEP, roofing, and carpentry. Sealed bids must be submitted electronically via the City's e-Procurement Portal by 2:00 pm on November 12, 2026.

WG Construction Co., 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, located in the City of San Diego, California. This CASRF and EPA funded project seeks quotes from subcontractors and suppliers for a wide range of scopes, including aggregate and pipe supply, asphalt paving, electrical work, minor concrete, surveying, QC testing, and landscaping. The solicitation is designated as a set-aside for SBA certified Women-Owned Small Businesses and encourages Disadvantaged Business Enterprise participation. Bids must be submitted via email or fax by December 3, 2026, and must remain valid for 120 days. All subcontractors are required to maintain a valid California contractor license and be registered with the California Department of Industrial Relations per Public Contract Code Section I725.5. The project is subject to a Project Labor Agreement. Additionally, Flatiron Dragados reserves the right to require payment and performance bonds equal to 100 percent of the contract value, with bond premium reimbursements available up to 3 percent of the contract value.

Flatiron Dragados Constructors, Inc.

POSTED

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 as 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, 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. Primary 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 SBA and project links.

Anderson Pacific Engineering Construction, 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 improvement and enlargement of wastewater treatment facilities. Cushman Contracting Corporation is serving as the agency for this effort, with Melia Raj listed 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 solicitation was officially posted on November 9, 2026, and is open to qualified contractors capable of performing the specified infrastructure upgrades in California.

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 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

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. 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 performed in Virginia across two primary areas, including the Langley Circle Pump Station vicinity and a section of Mercury Boulevard. 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 heavy and civil engineering construction. Interested parties should note the tight response window following the November 9, 2026, posting date.

Garney Companies, Inc.

POSTED

DEADLINE

City of Redlands - Wastewater Treatment Plant Upgrades Phase 2 (521006), Redlands, CA

Solicitation # city-redlands-wastewater-treatment-plant-upgrades-phase-2-521006-redlands-ca

GSE Construction Co., Inc.

POSTED

39 minutes ago

DEADLINE

in 2 days

AI Contract Overview

The contract pertains to the construction of a stormwater management system in San Diego, with a focus on installing biofiltration basins and connecting storm drains. The work must comply with environmental regulations aimed at treating runoff and maintaining water quality, ensuring sustainable and effective stormwater infrastructure. Classified under the NAICS code 237110, which relates to water and sewer line and related structures construction, this subcontract is issued by San Diego County, California. The solicitation was posted on June 4, 2026, with responses due by July 16, 2026. While specific contact details and set-aside information are not provided, the project clearly targets improving stormwater treatment capabilities through engineered solutions. This effort supports local environmental standards and reflects the county’s commitment to sustainable water management practices.

General Info

Construction of stormwater biofiltration basins and drains in San Diego, ensuring environmental compliance.

Agency

California → San Diego County

NAICS

237110 - Water and Sewer Line and Related Structures Construction

Place of Performance

San Diego, CA, USA

Set-Aside

NONE

Documents

This scope was carved out of BPM013149.

The full solicitation package (15 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

RFB - S. MISSION RD (NORTH SEGMENT) GREEN STREET P2

AI Contract Breakdown

Uniform Contract Format

No documents to break down

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Timeline

PhaseClosed

PostedJun 4

subcontract

Response DeadlineJul 16

Deadline has passed

Submission Closed

07/16/2026, 03:00:00 PM PDT

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Organization & Contact Information

AgencyCalifornia → San Diego County

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → San Diego County

Office AddressN/A

ContactsNo contact information available

Full Description

Construction of stormwater infrastructure including biofiltration basins and storm drain connections, compliant with environmental standards for runoff treatment and water quality.