This Subcontract opportunity from Vermont was posted on June 5, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Hydraulic & Hydrologic (H&H) Modeling for Aquatic Organism Passage (AOP)

Closed

State & Local

Submission Closed07/08/2026, 06:00:00 AM EDT

Contract Overview

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

Active Opportunities Like This One

NAICS: 541620

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DIBBS

Military Grade Packaging and Marking ServicesThis subcontract, titled Military Grade Packaging and Marking Services, is issued by the Department of Defense under the DLA Weapons Support Strategic Acquisition Program Directorate. The project is designated as a Total Small Business Set-Aside under NAICS code 541620. The contractor is responsible for providing specialized packaging and marking for components intended for prime contractors fulfilling DLA supply contracts, ensuring all deliverables are ready for FOB Origin shipment. Technical requirements mandate strict adherence to military standards, specifically MIL-STD-129 for marking, MIL-STD-2073-1E for packaging, and RP001 for palletization. Additionally, the contractor must execute specific cleaning, drying, and preservation protocols as defined by packaging data, including Preservation Method 10 and Cleaning/Drying 1. The solicitation was posted on November 8, 2026, with a response deadline of November 23, 2026.

DLA WEAPONS SUPPORT STRATEGIC ACQ PROGRAM DIRECTORATE

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DEADLINE

Biological Monitoring for 2026-2027 Maintenance and Wood Pole Projects (WPP), Western Area Power Administration, Desert Southwest Region, PhoenixThe Western Area Power Administration, under the Department of Energy, is forecasting a requirement for biological monitoring services to support maintenance and wood pole projects within the Desert Southwest Region of Phoenix. This project, scheduled for the 2026-2027 period, will be performed in Arizona and falls under NAICS code 541620. The opportunity is designated as a small business set-aside. Vernadero Group Incorporated is listed as the incumbent contractor for these services. Interested parties can coordinate with the Small Business Program Managers for further information regarding this upcoming acquisition.

Western Area Power Administration

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U.S. DEPARTMENT OF ENERGY/NATIONAL NUCLEAR SECURITY ADMINISTRATION (DOE/NNSA)OFFICE OF COUNTERTERRORISM AND COUNTER-PROLIFERATION (NA-80) TECHNICAL SUPPORT SERVICESThe National Nuclear Security Administration, an agency of the Department of Energy, is forecasting a requirement for technical support services to benefit the Office of Counterterrorism and Counter-proliferation. This procurement is categorized under NAICS code 541620 and is intended to be set aside for small businesses. The work is expected to be performed in the District of Columbia. The current incumbent contractor for these services is Project Enhancement Corporation. Interested parties may coordinate with the Small Business Program Manager, Chelsea Murphy, regarding this upcoming opportunity.

National Nuclear Security Administration

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On-Call Biological Support Services for 2026 Integrated Vegetation Management Work, Western Area Power Administration, Desert Southwest Region, PhoenixThe Western Area Power Administration, under the Department of Energy, is forecasting a requirement for on-call biological support services to assist with 2026 integrated vegetation management work. This project will be centered in the Desert Southwest Region in Phoenix and falls under NAICS code 541620 for environmental consulting services. The current incumbent contractor for these services is Klamath Wildlife Resources. Interested parties can coordinate with the Small Business Program Managers at the agency for further information regarding this upcoming procurement opportunity.

Western Area Power Administration

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Radiological Technical Services & Air MonitoringThis SBA set-aside subcontract for the Environmental Protection Agency Region 9 involves providing radiological technical services and air monitoring for environmental remediation projects. The selected provider will support prime contractors by delivering health physics oversight, radiation scanning, and air sampling for particulates. Technical execution requires the use of SKC Particulate Monitors and MultiRAE Pro Pumped equipment, with a mandate for personnel to hold Radiation Technician certifications or be Certified Health Physicists. The scope of work includes the delivery of daily and weekly air monitoring reports to ensure safety and compliance. Interested parties should note that the response deadline is January 5, 2027, and the project falls under NAICS code 541620.

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Site Conditions and Geotechnical AnalysisThis subcontract for Site Conditions and Geotechnical Analysis involves performing technical investigations of existing site conditions for prime contractors working on Housing Corporation of East Windsor projects. The selected provider will utilize soil sampling equipment and geotechnical testing tools to evaluate physical and environmental constraints, identifying critical issues that may impact overall project feasibility. These efforts will culminate in the delivery of essential technical input for the Existing Conditions and Constraints Memorandum. Managed by DAS Procurement for the state of Connecticut, the contract requires the provider to hold a Professional Geologist or PE license and maintain Professional Liability insurance. Interested parties must respond by November 14, 2026, regarding this opportunity which falls under NAICS code 541620.

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Geotechnical and Materials TestingThis subcontract for Geotechnical and Materials Testing involves providing quality control services for prime contractors working on Kansas Turnpike Authority projects. The scope of work focuses on the testing of soil and asphalt materials, specifically requiring the establishment of maximum density-optimum moisture curves per ASTM D 698, in-place density determinations, concrete compressive strength tests, and sieve analysis for granular subbase. The selected contractor will utilize nuclear density gauges and compression machines to perform these technical evaluations and is responsible for delivering all resulting testing reports and curves. This opportunity falls under NAICS code 541620 and is associated with the state of Kansas.

Kansas Turnpike Authority

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Windstorm Risk Assessment & Mitigation ConsultingThis subcontract for Windstorm Risk Assessment and Mitigation Consulting supports prime contractors working on projects for the Housing Authority of the City of Brownsville in Texas. The selected consultant will provide technical windstorm risk analysis, utilizing catastrophe modeling and geospatial risk tools to perform risk modeling for weather-related perils. The scope of work includes evaluating the physical vulnerability of properties and delivering detailed risk assessment reports. The primary objective of these services is to provide data-driven recommendations to improve the insurability of the properties. This opportunity falls under NAICS code 541620 and requires the delivery of specific mitigation strategies to protect assets against windstorm damage. Interested parties must respond by December 17, 2026.

Brownsville Housing Authority

POSTED

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CONSULTING SERVICES - Rural School Septic System Studey

Solicitation # RFP27-31

The Lakehead District School Board is seeking proposals for consulting services to conduct a Rural School Septic System Study. This solicitation, identified as RFP27-31, is open for electronic submissions only. The request for proposals was posted on November 7, 2026, and the deadline for responses is December 10, 2026, at 7:00 PM. The resulting work will be performed within Canada.

Lakehead District School Board

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Groundwater Data Processing and Hydrogeological ModelingThis subcontract for Groundwater Data Processing and Hydrogeological Modeling supports UNICEF projects in Vanuatu by providing specialized geophysical data analysis. The selected contractor will be responsible for inverting raw TEM data to create inversion outputs, interpretive sections, and maps. By integrating these results with topography, geology, borehole records, and water quality data, the contractor will rank borehole investigation targets and deliver comprehensive technical groundwater assessment reports and site maps. To qualify for this engagement, the contractor must possess professional credentials as a hydrogeologist or geophysicist and have access to necessary GIS software. The work falls under NAICS code 541620 and focuses on delivering critical data processing and modeling services to assist prime contractors in identifying viable groundwater sources within the region.

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Certified Industrial Hygienist (CIH) Reporting ServicesThis subcontract for Certified Industrial Hygienist (CIH) Reporting Services involves providing professional analysis of laboratory data for prime contractors working on California Department of General Services facility projects. The selected provider will analyze results to establish risk thresholds and author 100 signed final survey reports delivered in a room-by-room format including professional recommendations. To qualify for this engagement, the provider must hold Certified Industrial Hygienist (CIH) certification and maintain AIHA Competent Professional status. The solicitation was posted on November 6, 2026, with a response deadline of November 23, 2026, falling under NAICS code 541620.

California Department of General Services

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Legionella Water Sample Collection ServicesThis subcontract for Legionella Water Sample Collection Services involves performing on-site water sample collection for prime contractors working on California Department of General Services facility projects. The scope of work includes conducting routine and investigative sampling of both domestic and non-potable water systems, specifically focusing on pre and post flush sampling and the measurement of residual disinfectant, temperature, and pH levels. The selected provider must manage the Chain of Custody and ensure all activities adhere to the AIHA Technical Framework: Legionella 2020 standards. Responsibilities include the delivery of collected samples accompanied by completed Chain of Custody forms. This opportunity falls under NAICS code 541620, with a response deadline of November 23, 2026.

California Department of General Services

POSTED

2 days ago

DEADLINE

in 15 days

AI Contract Overview

This contract involves conducting detailed hydraulic and hydrologic modeling, specifically using tools such as HEC-RAS, to ensure that culvert designs effectively support the passage of aquatic organisms and maintain stream stability. The work requires applying technical expertise to simulate water flow and environmental conditions to develop sustainable infrastructure solutions that align with ecological requirements. The contract is categorized under the NAICS code 541620, indicating professional scientific and technical consulting services. Issued by the Vermont Department of Economic Development, this subcontract opportunity was posted on June 5, 2026, with a response deadline of July 8, 2026. The contract focuses on leveraging advanced modeling techniques to promote environmental stewardship and compliance with aquatic habitat protection standards. While specific organizational or geographic details are not provided, the scope emphasizes enhancing infrastructure design to support ecological connectivity and hydrologic function.