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CONSTANTINE CONSTRUCTORS, LLC

UEI: HWVKLF5UXD25CAGE: 8R0W3

CONSTANTINE CONSTRUCTORS, LLC is a federal contractor, registered under UEI HWVKLF5UXD25 and CAGE code 8R0W3. It has been awarded $7,428,010 across 19 federal contracts. Primary work spans Water Supply and Irrigation Systems. Top awarding agencies include Department Of Defense (dod).

Contact Information

Registration and classification details

Address123 Main St, City, ST 12345

Registration

UEI Code

HWVKLF5UXD25

CAGE Code

8R0W3

Entity Structure

Corporate Entity (Not Tax Exempt)

Established

N/A

Business Classifications

2XLJ

Federal Contracting Overview

Award totals, agency breakdown, NAICS distribution, and geographic footprint.

AI Capability Profile

CONSTANTINE CONSTRUCTORS, LLC specializes in civil infrastructure construction under NAICS 237110, focusing on the design and execution of public works projects including water and wastewater systems, stormwater management, and utility relocation. The firm delivers turnkey construction services with...

Key Performance Metrics

Awards Count

0

All time

Active

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Completed

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Past period of performance

Total Awards

All time

Contracts

Prime · all time

Subcontracts

Sub · all time

Grants

Prime · all time

Subgrants

Sub · all time

Award Analytics & Distribution

Awards by Agency

Department Of Defense (dod)$7.4M100%

Awards by NAICS

221310 - Water Supply and Irrigation Systems$7.4M100%

Awards by Agency Over Time

Awards by Place of Performance

Open opportunities in CONSTANTINE CONSTRUCTORS, LLC's top NAICS codes and agencies

Palisade, MN Water Supply System Improvements

Solicitation # palisade-mn-water-supply-system-improvements

The City of Palisade is undertaking significant water supply system improvements including the construction of a new water treatment facility, rehabilitation or removal of the existing well house, and refurbishment of current wells, all while integrating these upgrades into the municipal water system. Work will also involve full restoration of areas disturbed during construction. The scope is broad, encompassing demolition, cast-in-place concrete, masonry, metal and wood fabrications, interior and exterior finishes, plumbing, HVAC, electrical systems, structured cabling, earthwork, utility upgrades, and pollution control equipment. All work must be executed to meet high standards of quality and compliance. Bids for this project are due by August 18, 2026, at 12:00 p.m. and must be submitted to estimating@ricelake.org. The solicitation is open to Minority Business Enterprises certified by NMSDC and Women Business Enterprises certified by WBENC, reflecting a commitment to inclusive contracting practices. The project falls under NAICS code 221310 for water supply and irrigation systems. Rice Lake Construction Group is the administering organization, with Karen Calabro listed as the primary point of contact for inquiries. The project is located in Palisade, Minnesota, and all work must be performed on-site.

Rice Lake Construction Group

POSTED

about 6 hours ago

DEADLINE

Replace filter media of water treatment plant, CP Humphrey

Solicitation # W51LL526QA008

The contract pertains to the replacement of filter media for the water treatment plant at CP Humphrey, identified by solicitation number W51LL526QA008, issued by the Department of Defense under the office of 0906 Aq Co Det B Contracti. The solicitation was posted on July 9, 2026, with a response deadline of July 23, 2026, at 04:00 hrs (KTS), coinciding with an amendment that extended the original closing date from June 26 to the new deadline. The NAICS code 221310 classifies this as a water treatment and supply activity, and the place of performance is associated with the military postal address in APO, AP, 96224-5228, USA. Primary point of contact is U Kap Son, reachable via email and phone, with Yun Chae Yi listed as secondary contact for inquiries. The opportunity is open under a general solicitation with no specified set-aside classification, and further details are accessible via the provided SAM.gov link.

0906 Aq Co Det B Contracti

POSTED

about 10 hours ago

DEADLINE

Consolidated SWP and CVP Authorized Places of Use Water TransferThe California Department of Water Resources and the Bureau of Reclamation are proposing a water transfer of up to 392,300 acre-feet south of the Delta under a suite of permits and licenses held by both agencies, including DWR Permit 16479 and multiple Reclamation licenses and permits编号. This transaction is authorized under the Consolidated SWP and CVP Authorized Places of Use Water Transfer agreement and is intended to facilitate water exchanges that support regional water supply needs while adhering to existing regulatory frameworks. The transfer involves coordination across multiple permit holders and is designed to optimize water use efficiency in the State Water Project and Central Valley Project systems. The action is forecasted to be initiated in August 2026 and is overseen by the State Water Resources Control Board’s Division of Water Rights. Primary point of contact for technical and regulatory matters is Patricia Fernandez, Senior Engineer, with additional support from Vanessa Emerzian of the Bureau of Reclamation and Victor Vasquez of the California Department of Water Resources. The transaction will be implemented within California, with all activities governed by state and federal water rights authorities, and no set-aside provisions or NAICS code classification are specified. The project’s regulatory and operational details are accessible through the California Environmental Quality Act portal.

SWRCB, Division of Water Rights

POSTED

about 15 hours ago

DEADLINE

PEO-M Unmanned Surface Vehicle (USV) Poseidon's Fury Collaboration Event (CE)

Solicitation # PEO_M_USV_Poseidon_s_Fury_CE

SOFWERX and the USSOCOM Program Executive Office Maritime (PEO-M) are hosting the Poseidon’s Fury Collaboration Event to accelerate the development of the Unmanned Surface Vehicle Mission-Aligned Reference Architecture (MARA), a standards-based framework designed to improve interoperability across Joint Force manned and unmanned maritime systems while eliminating redundant, service-specific platform development. This initiative is open exclusively to U.S. persons and involves a two-phase process beginning with a virtual collaboration event on August 26, 2026, where SOF operators and industry partners will engage in breakout sessions to define operational needs around user interface, autonomy, command and control, and platform effectiveness. Participation in this event is optional but strongly encouraged to align solutions with warfighter requirements, with registration closing August 14, 2026. Those who do not attend the CE may still submit capabilities for consideration during the Assessment Event, which opens on September 14, 2026, and closes October 2, 2026. A virtual Q&A session is available on September 23 for clarification on technical expectations. Selected submissions will undergo a downselect process, with winners invited to participate in a comprehensive on-water Assessment Event at Stennis Space Center, Mississippi, between November 2 and 20, 2026. Participants must demonstrate their USV capabilities in real-world conditions, with evaluations conducted by Subject Matter Experts from USSOCOM, JHU APL, WARCOM, and MARSOC using predefined technical and operational criteria. Successful performers may be transitioned to Phase 5, where potential pathways for follow-on acquisition include Other Transaction Authorities (OTAs) under 10 U.S.C. §4022, research agreements under 15 U.S.C. §3715, cooperative R&D agreements, experimental procurement under §4023, or prize competitions—potentially leading to non-competitive production awards based on successful prototype outcomes. All awardees must comply with NIST SP 800-171 for securing Controlled Unclassified Information, and eligibility is limited to U.S. persons and organizations capable of supporting USSOCOM’s unique maritime missions.

Department Of Defense

POSTED

DEADLINE

Operation of Continuous Chlorination at Well 2 Water Supply Permit Amendment (Project)The Applicant seeks approval to implement a continuous chlorination system at the Well 2 water supply facility, replacing the existing chlorine dosing infrastructure to improve water disinfection efficiency and regulatory compliance. This permit amendment is managed by the State Water Resources Control Board under the jurisdiction of California, with the project scoped to enhance the operational reliability and safety of the potable water supply through automated, ongoing chlorination. The initiative is aimed at ensuring consistent water quality standards by eliminating the limitations of the prior system and maintaining disinfection throughout the distribution network. The primary point of contact for technical inquiries is Sudarshan Poudyal, District Engineer, reachable via phone or email, while John Bath serves as the administrative liaison for procedural or documentation-related matters. The project is publicly listed under the California CEQA Net portal with a posted date of August 4, 2026, signaling an upcoming opportunity for regulatory review or public input, though no formal solicitation has been issued as of now. The facility’s location is within California, and no specific city or zip details are provided, suggesting the permit applies broadly to the water system’s operational area under state oversight.

State Water Resources Control Board

POSTED

DEADLINE

Z--IRRIGATION SYSTEM FOR NATL WEATHER SVC IN TEXAS

Solicitation # 1305M326Q0268

This contract solicits non-personal services for the complete removal and replacement of existing irrigation systems and associated landscape drainage repairs at three National Weather Service facilities in Texas—Corpus Christi, Midland, and New Braunfels. It is issued as a Request for Quotation under the Revolutionary FAR Overhaul Part 12, designated exclusively as a small business set-aside with a NAICS code of 221310 and a size standard of $41.0 million. The work must be performed within 120 days of contract award, with an estimated award date of August 17, 2026, and quotes are due by 10:00 a.m. MDT on August 7, 2026, submitted electronically to kerri.coffey@noaa.gov. Each location has a distinct CLIN, requiring full turnkey execution including supervision, labor, tools, materials, and equipment to install modern weather-based irrigation systems, restore sod and rock, correct drainage slopes, replace edging, and remove debris, all in compliance with the attached Statement of Work and OSHA, NEC, EPA, and NFPA standards. The contract requires adherence to the U.S. Department of Labor wage determination 2015-4137 Revision 31 for each site, and contractors must submit pricing on SF 18 or company letterhead, including UEI and CAGE codes from SAM.gov. The Government emphasizes site visits as critical to understanding site conditions, with Jorge Negrete coordinating access to the locations, and explicitly states that failure to inspect the site will not constitute grounds for claim post-award. Evaluation will be based on a trade-off process where technical approach and relevant experience are of equal importance and significantly outweigh price, which is not scored but reviewed for completeness and reasonableness. Payment must be processed through the Invoice Processing Platform, and contract administration is handled by Kerri Coffey as the primary point of contact. Additional requirements include mandatory sexual harassment and assault prevention training for all personnel within 30 days of assignment, annual renewal by March 1, and strict adherence to non-personal services terms prohibiting any form of Government supervision or control over contractor personnel. The contract incorporates multiple FAR clauses by reference, including those related to System for Award Management maintenance, prohibition of internal confidentiality agreements, and subcontract reporting, while explicitly noting that deviations in SAM.gov representations do not affect award eligibility. There are no options, no packaging or marking requirements specified, and

Department Of Commerce Noaa

POSTED

DEADLINE

City of Lethbridge - Request for Proposal - WTP Filter Media Replacement

Solicitation # AB-2026-05467

The City of Lethbridge is seeking qualified vendors to replace the filter media at its Water Treatment Plant as part of a broader expansion initiative aimed at improving operational efficiency. The primary objective is to optimize filter performance by evaluating alternative media types that can enhance flow rates and overall treatment capacity, based on preliminary desktop assessments. This effort is critical to ensuring the plant meets future demand while maintaining water quality standards. Full-scale pilot testing will be required to validate performance under real-world conditions before any final selection or implementation, providing confidence in the long-term reliability and effectiveness of the chosen media. Interested parties must submit proposals in response to solicitation number AB-2026-05467, with a deadline of September 3, 2026, at 8:00 PM MT. The procurement is open to all eligible suppliers without set-aside provisions, and all work must be performed in Lethbridge, Alberta. Point of contact for questions and submissions is Nicki Van Eck, the Buyer, reachable via email at nicki.vaneck@lethbridge.ca. Proposals must demonstrate technical expertise in water treatment filtration systems, experience with pilot-scale testing, and a clear plan for evaluating and comparing media options to meet the city’s performance goals.

City of Lethbridge

POSTED

DEADLINE

Rental and Maintenance of Reverse Osmosis System

Solicitation # 060-3042002-CC

The contract involves the rental and maintenance of a reverse osmosis system for the Sheriff-Coroner agency in California, specifically based in Santa Ana with a ZIP code of 92701. The solicitation number is 060-3042002-CC, and responses are due by September 4, 2026, at 11:00 PM. This opportunity is open to state, local, and educational government entities and does not specify a NAICS code or set-aside classification. The system will be used for water purification needs critical to agency operations, though the exact location of performance is not detailed beyond the state of California. The primary point of contact for questions or submissions is Courtland Carey, Procurement Buyer Trainee, reachable via email at ccarey@ocsheriff.gov or phone at 714-832-4312. All bids must be submitted through the designated online portal before the deadline to be considered.

Sheriff-Coroner

POSTED

DEADLINE

in about 1 month

WVWA-FOD-27-03 Water Meters & Appurtenances

Solicitation # IFB-125440

The Western Virginia Water Authority is soliciting bids for water meters and associated appurtenances under solicitation number IFB-125440, titled WVWA-FOD-27-03. All supplies must be delivered to the authority’s warehouse located at 3322 Hollins Road NE, Roanoke, VA 24012, with bids due by August 18, 2026, at 7:00 PM Eastern Time. The bid documents are available for download through the official portal, and interested parties are expected to review them thoroughly prior to submission. This procurement is issued by a state and local government entity under the agency name Virginia, with no specific set-aside designation indicated. Contact for inquiries is Trent Cox, reachable at 540-283-2973 or trent.cox@westernvawater.org. The opportunity is open to qualified suppliers with no NAICS code specified, and performance is limited to the Roanoke, Virginia area.

Western Virginia Water Authority

POSTED

DEADLINE

William Beaumont Army Medical Center, Fort Bliss, Texas Water Purification and Treatment Services

Solicitation # W81K0026QA253

The U.S. Department of Defense, through W40M MRC0 West, is soliciting proposals under contract number W81K0026QA253 for water purification and treatment services at William Beaumont Army Medical Center, Fort Bliss, Texas. The acquisition is structured as a Small Business Set Aside, open only to small businesses including Women-Owned, Economically Disadvantaged Woman-Owned, and Service-Disabled Veteran-Owned Small Businesses, with a NAICS code of 221310. The contract requires the lessee to provide, install, operate, and maintain a mobile water purification system under a Firm Fixed Price arrangement, with a base performance period of one year starting October 1, 2026, and two optional one-year extensions through September 30, 2029. The technical scope includes site preparation, utility connections, system commissioning, 95% uptime compliance, adherence to Joint Commission and OSHA standards, infection control protocols, and providing technical training to medical center staff. All proposals must meet strict technical acceptability criteria, including delivery and installation capability, before price is evaluated. The award will be made on a Lowest Price, Technically Acceptable basis, with failure to meet any technical requirement resulting in disqualification. Offers must be submitted electronically to designated points of contact by August 27, 2026, and contractors must be registered in SAM.gov with valid UEI and CAGE codes. Required compliance includes NIST SP 800-171, DFARS safeguarding clauses, antiterrorism training, PIV identification, and exclusion screenings via HHS OIG and TRICARE lists. Contractors are prohibited from engaging with entities linked to the Maduro regime or Xinjiang Uyghur Autonomous Region and must adhere to subcontracting limitations, with no more than 50% of payments going to non-similarly situated subcontractors. All invoicing must be submitted through WAWF, and the government retains full authority for inspection and acceptance at the Fort Bliss site. The Contracting Officer’s Representative will conduct continuous surveillance, and unprofessional conduct or noncompliance may lead to immediate termination. No contract value is available as pricing data is not included in the solicitation, but full pricing by CLIN is mandatory for proposal eligibility.

POSTED

DEADLINE

Repaint Exterior of Raw Water Tank S-425

Solicitation # W91QVN26RA082

The contract solicitation titled Repaint Exterior of Raw Water Tank S-425 is issued under solicitation number W91QVN26RA082 and is restricted to vendors holding an Area III MATOC. The opportunity is posted on July 31, 2026, with a response deadline of August 13, 2026, at 4:00 a.m. Eastern Time. The North American Industry Classification System code is 221310, indicating it relates to water and wastewater treatment and distribution. The contracting office is part of the Department of Defense under the 0411 Aq Hq Contract Augmented organization, located in APO, AP, with a ZIP code of 96271-5289. The place of performance details are unspecified. Myong Hui Hong is the primary point of contact, reachable via email at myonghui.hong.ln@army.mil. This is a combined solicitation with no set-aside designation specified.

0411 Aq Hq Contract Augmented

POSTED

DEADLINE

Well System Operation & Maintenance ServicesThe contract encompasses the routine operation, monitoring, preventive maintenance, and compliance reporting for Begonia Well 3, requiring continuous pump operation, regular water quality sampling, and systematic integrity checks to ensure reliable and safe water production. All activities must adhere to established regulatory standards and include detailed documentation to support ongoing compliance obligations. The work is performed under a subcontract titled Well System Operation & Maintenance Services, issued by the California State Water Resources Control Board, and falls under NAICS code 221310 for Water Supply and Irrigation Systems. Services are to be carried out in accordance with state requirements, with the performance location tied to the well site, though specific geographic details are not provided. The contract was posted on July 31, 2026, and all responsibilities must be fulfilled to maintain operational continuity and regulatory alignment throughout the contract period.

State Water Resources Control Board

POSTED

DEADLINE

California American Water Company Monterey Operation of Begonia Well 3 Water Supply Permit AmendmentThe California American Water Company seeks approval to operate Begonia Well 3, a newly constructed water supply well in Monterey County that replaces an existing well within its system. The proposal is submitted as an amendment to the water supply permit under the jurisdiction of the State Water Resources Control Board, with the well site located in California and subject to local regulatory oversight. The well was constructed under a permit issued by Monterey County, and the amendment seeks formal recognition and authorization for its integration into the company’s water supply network to maintain service reliability and compliance with state standards. Key contacts for this permit amendment include Jonathan Weininger, District Engineer at the State Water Resources Control Board, who serves as the primary point of contact for regulatory review, and Spencer Vartanian, Director of Operations for California American Water Company, representing the applicant’s operational perspective. Roger Van Horn from Monterey County’s Drinking Water Protection Program also plays a critical role in local permitting and well compliance. The request was posted on July 31, 2026, and additional details can be accessed through the California Environmental Quality Act network portal, reflecting the procedural and environmental review process required for such water infrastructure changes.

State Water Resources Control Board

POSTED

DEADLINE

Establishment of Water and Sewer Availability Charges for the Murrieta Service Area for Fiscal Year 20262027For fiscal year 2026–2027, the Western Municipal Water District will establish water and sewer availability charges applicable to land within the Murrieta Service Area in California. These charges are designed to fund the ongoing operational and capital expenses required to sustain existing water and sewer infrastructure, ensuring reliable service delivery to connected properties. The district is authorized to collect these charges through the Riverside County tax roll, integrating them into the property tax billing system for efficient and consistent revenue generation. The initiative is managed by the district’s Finance Department, with Veronica Zheng, Director of Finance, serving as the primary point of contact for inquiries and coordination.

Western Municipal Water District

POSTED

DEADLINE

RO/DI Water System Preventive Maintenance & ServiceThis contract requires monthly preventive maintenance, disinfection, calibration, and continuous performance monitoring of medical-grade reverse osmosis and deionized water systems, along with associated water softening equipment, to ensure they meet stringent healthcare standards. The services are critical for maintaining water purity in clinical and operational environments where compromised water quality could impact patient safety or facility compliance. All work must be performed on a recurring monthly basis, with strict adherence to protocols designed to uphold system integrity, functionality, and regulatory compliance. The contract is issued under the NAICS code 221310, classifying it as water treatment services, and is managed by the Department of Veterans Affairs through the 250-NETWORK Contract Office 10. Performance is required at a specific location in Dayton, Ohio, with a zip code of 45248. The solicitation was posted on July 30, 2026, and offers must be submitted by August 7, 2026, by 2:00 PM. This is a subcontract opportunity, and while no set-aside designation is specified, interested parties should ensure alignment with the technical, scheduling, and compliance expectations outlined in the full solicitation materials.

250-NETWORK Contract Office 10 (36C250)

POSTED

DEADLINE

H946--Separate RO/DI Requirement Dayton - Services

Solicitation # 36C25026Q0820

The Dayton Veterans Affairs Medical Center is seeking information from qualified firms to support the preventative maintenance of reverse osmosis systems, water softeners, and related hemodialysis and laboratory water purification equipment. The requirement mandates comprehensive, scheduled service including monthly, quarterly, semiannual, and annual tasks such as filter and membrane replacements, chemical and ozone disinfections, water hardness testing, and system inspections, all performed in strict compliance with ANSI/AAMI ST108 and VHA Directive 1061. Contractors must provide all labor, materials, parts, and supervision, and must coordinate directly with the Contracting Officer’s Representative, Robert Rhoad, submitting service reports via email and adhering to strict on-site protocols including VA-issued identification badges and key handling procedures. The scope encompasses maintenance for multiple systems including the SPS Evoqua RO system, six water softeners, the B330-2B100 RO system, and specialized dialysis and lab purification units requiring ultra-pure deionized and carbon filtration systems. Replacement components such as DI exchange tanks, carbon tanks, UV lamps, endotoxin filters, and other consumables are specified with defined frequencies, and contractors must supply all required materials unless otherwise noted. Work must occur during standard business hours Monday through Friday excluding federal holidays at the Dayton VA Medical Center, with performance monitored and accepted solely by the COR. No government-furnished equipment or security accreditation is required, and all shipping must include purchase order numbers. The solicitation is a sources sought notice open through August 7, 2026, using NAICS code 221310, and responses must be submitted to Ronald Heidemann via email with company details, socioeconomic status, available contract vehicles, and any suggested NAICS code changes.

250-NETWORK Contract Office 10 (36C250)

POSTED

DEADLINE

J047--Water Piping Rebuild

Solicitation # 36C26226Q1132

The solicitation for the J047—Water Piping Rebuild project, identified by solicitation number 36C26226Q1132, is a Service-Disabled Veteran-Owned Small Business (SDVOSBC) set-aside under NAICS code 221310, administered by the Department of Veterans Affairs’ Network Contracting Office 22 in Long Beach, California. The contract action is being advanced through an amendment issued under FAR 43.103(b), which administratively extends the offer submission deadline to August 7, 2026, at 10:00 a.m. PDT. The amendment also schedules a mandatory site visit at the VA Sepulveda Ambulatory Care Center in North Hills, California, on July 29, 2026, where participants must meet with Dexter Jones at Building 200; interested parties must confirm attendance via email to Ositadima.ndubizu@va.gov. All offers must acknowledge receipt of this amendment either by completing designated form fields, including the acknowledgment on each submitted offer, or via a separate letter or electronic communication referencing the solicitation and amendment numbers; failure to provide timely acknowledgment may result in rejection of the offer. The contract type is listed as "combined," though no specific classification such as FFP or IDIQ is defined, and no pricing data, contract value, CLINs, or performance period details are provided in the available documentation. The place of performance is indicated implicitly through the site visit location but remains formally undefined in the contract template. The contracting office address is consistently listed as 4811 Airport Plaza Drive, Suite 600, Long Beach, CA 90815, which also serves as the submission point for proposals and amendments. No formal contract clauses, inspection and acceptance criteria, packaging requirements, evaluation factors, or special requirements such as security clearances, key personnel, or options have been included in the provided material. Offerors are expected to comply with standard federal acquisition procedures, including the requirement to maintain current UEI or CAGE codes and to self-certify as an SDVOSBC, though no completed representations or certifications from respondents are present in the documentation. Electronic submissions are permitted, with email as the designated alternative channel, though no specific file formats or submission portals are specified.

262-NETWORK Contract Office 22 (36C262)

POSTED

DEADLINE

Coachella Valley Water District - System Conservation Implementation Agreement - Lower Colorado Conservation and Efficiency Program 2027-2028The Coachella Valley Water District is extending its System Conservation Implementation Agreement for the Lower Colorado Conservation and Efficiency Program through 2027 and 2028, building on an initial two-and-a-half-year effort that ran from 2024 to 2026. Under this temporary program, CVWD will enter into agreements with participating agricultural growers within its service area in the Eastern Coachella Valley to fallow irrigated farmland and conserve up to 10,000 acre-feet of Colorado River water annually. The conserved water will not be used consumptively by CVWD or other Colorado River contractors but will instead be made available through forbearance to help stabilize reservoir levels in the Lower Basin amid ongoing drought conditions. Growers will receive compensation for voluntarily taking land out of production, but they must maintain the fallowed land by controlling weeds and dust and are prohibited from increasing water use on other irrigated lands or shifting water demand to pumped groundwater. The program is explicitly designed as a short-term drought response and does not intend to permanently alter land use or agricultural practices in the region. CVWD typically supplies about 245,000 acre-feet per year for agricultural irrigation, making the 10,000 acre-feet conservation target a small but strategically significant portion of its overall allocation.

Coachella Valley Water District

POSTED

DEADLINE