This Solicitation opportunity from California was posted on September 8, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Stormwater Treatment BMPs

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20260908023State & Local

Submission Closed09/23/2026, 05:00:00 PM UTC

Contract Overview

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

Active Opportunities Like This One

NAICS: 237110

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IEUA RMPU Basin Improvements Project Montclair Basin Improvements

Solicitation # ieua-rmpu-basin-improvements-project-montclair-basin-improvements

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 for the Inland Empire Utilities Agency. The scope of work is comprehensive, requiring all materials, labor, tools, equipment, and transportation necessary to furnish, install, commission, and deliver a fully functional system. Norstar Plumbing and Engineering, Inc. is seeking certified DBE, MBE, SBE, and WBE subcontractors and suppliers to support various specialty trades. Key work activities include civil and site work such as grading, demolition, saw cutting, cold planing, and trucking, as well as infrastructure needs including concrete structures, concrete pipe, welding, and electrical work. Additional support services required include traffic control, SWPPP, construction surveys, and preconstruction video. Bids for this solicitation are due by October 29, 2026, at 2:00 PM.

Norstar Plumbing and Engineering, 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 in North Carolina 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. Key infrastructure work includes the installation of a new wet well, valve vault, and associated appurtenances, as well as the demolition of existing pumps and piping. The scope further encompasses the installation of mechanical and electrical systems, including pumps, a generator, and odor control equipment, along with gravity sewers, manholes, stormwater facilities, and site restoration. The project has an estimated value of 16,690,000 dollars and a substantial completion timeline of 560 calendar days. This solicitation, identified as SRP-W-134-0290, is a unit price contract awarded to the responsible bidder submitting the lowest responsive bid. Bidders must provide a completed EJCDC C-410 Bid Form, a bid bond, and evidence of authority to sign, while also demonstrating good faith efforts toward MWBE goals. The contract requires performance and payment bonds and adherence to strict technical standards, including AWWA Specification C-600 for pipelines and NEMA standards for motors. Payment is processed via monthly applications for payment, with funds becoming due 30 days after presentation to the owner. The project is set aside for small businesses, including certified veteran-owned, women-owned, and HUBZone small businesses.

Don Moorhead Construction, Inc.

POSTED

DEADLINE

WC 1456 Lead Pipe Inspection

Solicitation # wc-1456-lead-pipe-inspection

Spiniello Companies is seeking quotes from Minority and Women-Owned Business Enterprises (MWBEs) 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 designations, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone small businesses. Interested parties should submit their quotes to [email hidden] by the response deadline of November 4, 2026. While the primary NAICS code is 237110, the project also considers codes 237310, 561990, 238910, 541730, and 237990. For further inquiries, the primary point of contact is Katherine Snider.

POSTED

DEADLINE

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 must adhere to a tight timeline, with the solicitation posted on October 28, 2026, and a response deadline of October 29, 2026. Primary coordination for the project is handled by Sep Sharifi at Big Ben Engineering.

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 California for the City of San Diego. 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, landscaping, irrigation, and QC testing. 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 December 3, 2026, and must remain valid for 120 days. All subcontractors are required to hold valid California contractor licenses 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 actual bond premium costs reimbursable 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 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. The solicitation was posted on October 28, 2026, and requires all responses to be submitted by the deadline of November 10, 2026. Interested parties should coordinate with the Estimating Department at Anderson Pacific Engineering Construction, Inc. for further inquiries. Additional project details and submission guidelines are available through the provided agency links.

Anderson Pacific Engineering Construction, Inc.

POSTED

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 set aside for Small, Disadvantaged, Minority, Women’s, Service Disabled Veteran Owned, and Veteran Owned businesses. To be considered, bidders must submit their official certification of status along with their proposal. Awards will be granted based on the lowest responsive bid received. The deadline for bid submissions is November 5, 2026, at 2:00 PM, with project documentation managed 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 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 the installation of platforms and access improvements. Mechanical and piping requirements include the relining, modification, or replacement of small and large diameter steel and ductile iron pipes, associated supports, valves, and piping appurtenances. Additionally, the project requires the installation and operation of a temporary 11 MGD pumped bypass, the rehabilitation of reactor mixers and aerators, and the rerouting of sump pump discharge lines. Electrical and instrumentation work includes the installation of new or improved instrumentation, the rehabilitation and replacement of motor control center components, and modifications to existing sluice gates alongside the installation of new slide gates. The project also involves excavation, trench work, and surveying of key points around the reactors. This is a union project, and all subcontractors must utilize union labor. Potential subcontractors must be prepared to provide a 100 percent Payment and Performance Bond from a US Treasury listed Surety Company, providing their bond rate at the time of the bid for reimbursement. Quotes are due by November 17, 2026, with the final bid date set for November 18, 2026. This opportunity is set aside for small businesses, including certified VOSB, SDVOSB, WOSB, and HUBZone firms.

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 is designated as a small business set-aside, welcoming applications from various certified entities including small disadvantaged, women-owned, HUBZone, and veteran-owned small businesses. The work will be performed in California under NAICS code 237110. Interested parties must submit their responses by October 29, 2026, and can coordinate with the primary point of contact, Jordan Villalobos, for further details.

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 featuring a concrete wet well and submersible pumps, modifications to the RP-2 Lift Station to include an elevated electrical platform and standby generator, and the replacement of the motor control center, pumps, and motors at the Butterfield Lift Station while maintaining continuous operation. Filanc is seeking quotes from various trades, including SWPPP, survey, aggregates, demolition, paving, precast concrete, masonry, metals, coatings, process equipment, fire suppression, piping, 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 equal opportunity and DBE participation. Bids are due by 2:00 PM on October 29, 2025. The primary point of contact for this opportunity is Julia Masaitis.

Filanc

POSTED

15 minutes ago

DEADLINE

in about 11 hours

AI Contract Overview

The City of Rancho Santa Margarita in California is soliciting bids for Project No. 410-900-970.006, which focuses on Stormwater Treatment Best Management Practices (BMPs). This SLED organization project falls under NAICS code 237110 and is located in Rancho Santa Margarita, California 92679. The solicitation was posted on September 8, 2026, with a response deadline and bid opening scheduled for September 23, 2026, at 5:00 PM. The project specifications, prepared in August 2026, include detailed requirements for sealed bids, general and special provisions, and necessary contract documentation. Qualified contractors must adhere to specific licensing requirements, comply with prevailing wage laws, and meet all submittal requirements to be eligible for the award. Andrea Brahm serves as the primary point of contact for this solicitation.