Psst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveCLEATUS Webinar: AI for Government Contracting — Free Webinar — Wednesday, October 28 at 2:00 PM ET

Register Free →

Search

Top

Back to Contracts

Hydrologic Science and Radionuclide Transport Modeling

Active

Federal

Response Deadline11/12/2026, 11:00:00 PM UTC

Contract Overview

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

AI Contract Overview

Show more

This subcontract, titled Hydrologic Science and Radionuclide Transport Modeling, is issued by the Department of Energy's Contracting Operations Division. The project focuses on performing subsurface hydrology analysis and radionuclide transport modeling to support prime contractors on NNSA contaminated site closure projects. Key technical responsibilities include conducting paleohydrology research and analyzing radioactive transport mechanisms specifically within regional basins. Qualified providers must possess a DOE Q clearance and demonstrate specialized expertise in Great Basin regional hydrology. The primary deliverables for this engagement are validated radionuclide transport models and comprehensive technical reports. The solicitation was posted on October 27, 2026, with a response deadline of November 12, 2026, falling under NAICS code 541620.

General Info

DOE subcontract for radionuclide transport modeling and hydrology analysis requiring Q clearance.

Agency

Department Of Energy → Contracting Operations Division

NAICS

541620 - Environmental Consulting Services

Place of Performance

Not specified

Set-Aside

NONE

Documents

This scope was carved out of 89233127RNA000340.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Technical Research, Engineering, and Development Services (TREDS) III supportin

AI Contract Breakdown

Uniform Contract Format

No documents to break down

The breakdown needs solicitation documents. None were found from this contract's source.

Timeline

PostedOct 27

subcontract

Response DeadlineNov 12

Submission deadline

Response Deadline

11/12/2026, 11:00:00 PM UTCin 15 days

Ready to pursue this opportunity?

Start your free trial to track this contract, build proposals with AI assistance, and manage your pipeline.

Organization & Contact Information

Show more

AgencyDepartment Of Energy → Contracting Operations Division

ContactsNo contacts available

OfficeN/A

Organization / AgencyDepartment Of Energy → Contracting Operations Division

Office AddressN/A

ContactsNo contact information available

Full Description

Show more

Performs subsurface hydrology analysis and radionuclide transport modeling for prime contractors on NNSA contaminated site closure projects. Conducts paleohydrology research and analyzes radioactive transport mechanisms in regional basins. Requires DOE Q clearance and expertise in Great Basin regional hydrology. Delivers validated radionuclide transport models and technical reports.

Similar Contracts

Same NAICS industry code

SWPPP Implementation and MaintenanceThis subcontract opportunity with Cleary Construction, Inc. focuses on the implementation and maintenance of the Stormwater Pollution Prevention Plan for municipal sewer improvement projects. The selected contractor will be responsible for installing and managing critical erosion control measures, such as straw wattles, silt fences, and erosion control blankets, to ensure full compliance with State and EPA environmental regulations. The primary objective is to deliver a site that maintains active and effective erosion and sediment controls throughout the project duration. This is an SBA set-aside opportunity open to various small business certifications, including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone small businesses. Interested parties must submit their responses by December 4, 2026. The work falls under NAICS code 541620 and is associated with the Lynchburg VA CSO 70 sewer improvements.

Cleary Construction, Inc. Cleary Construction, Inc

POSTED

about 6 hours ago

DEADLINE

in about 1 month

ENVIRONMENTAL TRUST Comprehensive E mergency Management Plan Update & Environmental Engineering and Consulting Services

Solicitation # Environmental-Trust_RFP_FY-2027_Emergency-Plan-Update-Environmental-Services_10202026.pdf

The Confederated Tribes of the Colville Reservation is seeking professional services for a combined maximum budget of $289,497, divided into two primary functional areas. The first area, Emergency Management Planning, is capped at $150,000 and involves updating the 2014 Comprehensive Emergency Management Plan, developing Emergency Support Functions, creating hazard-specific annexes, and establishing the Tribes' first Continuity of Operations Plan and Tribal Threat and Hazard Identification and Risk Assessment. This scope also includes the development of an all-hazards tabletop exercise package and the facilitation of coordination workshops to integrate these planning components. The second area, Environmental Engineering and Consulting Services, is capped at $139,497 and focuses on technical field operations in Nespelem, Washington. Key tasks include biannual groundwater monitoring and testing at the Nespelem Post and Pole site, as well as the characterization, removal, and lawful disposal of hazardous materials at the Nespelem Recycle Center. The contractor must adhere to strict quality standards, including the use of approved Quality Assurance Project Plans and Health and Safety Plans, and provide detailed verification reports. Mandatory monthly progress reports are required for all activities, and all project communication costs must be integrated into the respective task budgets. TERO fees are handled separately by the Tribal Employment Rights Office and are not included in the scope of work budget.

Confederated Tribes of the Colville Reservation

POSTED

about 11 hours ago

DEADLINE

Erosion and Sediment Control ServicesThis subcontract for Erosion and Sediment Control Services supports prime contractors on City of Pueblo Public Works projects in Colorado. The selected provider is responsible for the development and execution of a comprehensive Erosion and Sediment Control Plan, which includes the installation of essential infrastructure such as silt fences and wattles. The primary objective is to deliver a fully compliant sediment control system that adheres to all applicable state and federal permit regulations. The opportunity is categorized under NAICS code 541620 and was posted on October 27, 2026. Interested parties must submit their responses by the deadline of November 17, 2026, at 5:00 PM. This project ensures that public works construction activities maintain environmental standards and regulatory compliance through professional sediment management.

POSTED

about 14 hours ago

DEADLINE

Environmental Monitoring & MitigationThis subcontract for Environmental Monitoring and Mitigation supports prime contractors on BC Timber Sales bridge projects within Canada. The primary objective is to provide comprehensive environmental oversight, which includes monitoring sediment transport, preventing fluid leaks in water bodies, and managing the Environmental Management System in accordance with FS11 standards. The selected provider must ensure strict compliance with regulations set by Fisheries and Oceans Canada and the BC Ministry of Environment. Key deliverables include the submission of EMS incident reports and detailed compliance documentation to verify that all environmental safeguards are maintained throughout the project duration.

BC Timber Sales Branch

POSTED

about 15 hours ago

DEADLINE

Watercourse Risk Assessment Framework ConsultantThe City of Hamilton is seeking a consultant for a subcontract to develop a risk-based condition assessment and prioritization framework for prime contractors working on watercourse projects. The primary objective is to create prioritization logic that ranks rehabilitation projects based on environmental mitigation and public safety, ensuring all processes align with ISO 31000:2018 Risk Management Guidelines. The final deliverables for this engagement include a completed prioritization framework and a set of risk evaluation tools. Qualified candidates must possess P.Eng or P.Geo professional designations and have access to specialized risk modeling software. This opportunity was posted on October 27, 2026, with a response deadline of December 14, 2026. The project will be performed in Canada under NAICS code 541620.

City of Hamilton

POSTED

about 17 hours ago

DEADLINE

in about 2 months

CEQA & Environmental Review Specialist

Purchasing Department

POSTED

about 18 hours ago

DEADLINE

in about 1 month

Environmental Challenge Assessment & PermittingThis subcontract, titled Environmental Challenge Assessment and Permitting, involves performing critical environmental assessments to identify and mitigate potential challenges for prime contractors working on Northwest Hills Council of Governments trail projects. The selected provider will be responsible for conducting site assessments and ecological surveys using specialized sampling equipment and tools to ensure full regulatory compliance. Key deliverables include the production of detailed impact reports, comprehensive mitigation plans, and the preparation of necessary permit applications. Managed by DAS Procurement for the state of Connecticut under NAICS code 541620, the contract requires deep expertise in environmental impact analysis and regulatory standards. The solicitation was posted on October 27, 2026, with a response deadline set for November 30, 2026. Interested parties can find further information through the CTSource Bid Board.

DAS Procurement

POSTED

about 18 hours ago

DEADLINE

in about 1 month

Climate and Environmental Data SpecialistThis subcontract opportunity is for a Climate and Environmental Data Specialist to support prime contractors on projects for the South East Wales Corporate Joint Committee. The selected specialist will be responsible for the technical analysis and synthesis of carbon, climate, and environmental data sets, with a specific focus on sourcing Wales-specific data and analyzing environmental vulnerability indicators. Key deliverables include a technical data requirements document and a comprehensive environmental vulnerability framework to define scientific parameters for climate adaptation. Qualified candidates must possess deep expertise in climate science and have access to professional climate modeling software. The contract is categorized under NAICS code 541620. Interested parties should note that the response deadline for this opportunity is November 13, 2026.

South East Wales Corporate Joint Committee

POSTED

about 20 hours ago

DEADLINE

Debris Monitoring Services

Solicitation # 2026-281

Collin County, Texas, is soliciting proposals for a stand-by contract for debris monitoring services to be utilized on an as-needed basis. The primary objective is to secure qualified firms to provide disaster recovery technical program management assistance and constant observation of debris removal operations. This ensures that all activities, documentation, and expenses strictly comply with FEMA Public Assistance Program guidelines, 2 CFR 200, and other federal or state relief program regulations to maximize cost recovery eligibility. The contract features an initial one-year term with five optional one-year renewals. The selected contractor must provide a comprehensive range of personnel, including project inspectors, grant management consultants, and safety managers, with pricing based on hourly unit rates. All submitted prices must be all-inclusive of insurance, taxes, overhead, and profit, with no separate payments for mobilization or demobilization. Any additional charges must be reasonable, necessary, and structured as direct reimbursable expenses adhering to FEMA policies. Award decisions will be based on a best-evaluated offer process considering knowledge of TCEQ regulations, organizational capacity, pricing, and references. Contractors are required to maintain rigorous documentation, including load tickets and daily logs, for at least seven years after project closeout and must resolve eligibility or safety issues within 24 hours. Mandatory requirements include the provision of performance and payment bonds within six days of a Notice to Proceed, compliance with the Davis-Bacon Act for applicable construction contracts, and adherence to the Buy America Act. Proposals must be submitted by October 29, 2026, and must include a Conflict of Interest Questionnaire and certification that the firm is not debarred from federal assistance programs.

POSTED

about 20 hours ago

DEADLINE

Ecological Restoration Preliminary Study ServicesThe Ecological Restoration Preliminary Study Services subcontract involves performing essential ecological and environmental assessments for prime contractors working on Massachusetts Department of Fish and Game facility projects. The scope of work includes conducting field surveys of bridges and culverts, analyzing fish passage barriers, and evaluating biological data. Additionally, the selected provider will utilize GIS software to map site conditions within Projected Transition Zones to produce a Preliminary Study Report and provide site designation recommendations. Qualified candidates must hold professional certification in Biology, Environmental Science, or Ecology. This opportunity is categorized under NAICS code 541620 and is based in Boston, Massachusetts. Interested parties should note the response deadline of November 3, 2026.

Department of Fish and Game

POSTED

about 20 hours ago

DEADLINE

Environmental Consulting and TestingThis subcontract for Environmental Consulting and Testing supports prime contractors on Architecture and Engineering projects for the Glendale Unified School District in Glendale, California. The scope of work involves performing comprehensive site assessments and hazardous material testing, specifically focusing on asbestos and lead-based paint surveys, soil contamination testing, and Phase I and II Environmental Site Assessments. The selected provider is responsible for delivering detailed environmental assessment reports and providing professional remediation recommendations. Interested parties should note that the response deadline for this opportunity is November 20, 2026.

GLENDALE UNIFIED SCHOOL DISTRICT

POSTED

about 21 hours ago

DEADLINE

SD Multi-Hazard Mitigation Enhanced Plan Update

Solicitation # 26RFP20017

The South Dakota Department of Public Safety, Office of Emergency Management, issued solicitation 26RFP20017 on October 5, 2026, seeking a qualified consultant to provide professional services for the update of the Enhanced State Hazard Mitigation Plan. The project will be performed within the state of South Dakota, and any resulting contract award is strictly conditioned upon the receipt of federal funds. The state will not award contracts to any entity that is in arrears on obligations to the State of South Dakota or is deemed irresponsible or unreliable. Proposals must be submitted by November 16, 2026, at 5:00pm CT. Submissions must not be sent through ESM Sourcing; instead, they must be delivered as three signed originals and one digital identical copy in sealed envelopes. Envelopes must be marked with the RFP number and title and addressed to Jim Poppen at the Department of Public Safety in Pierre, South Dakota. All proposals require an ink signature from an authorized officer of the responding firm.

South Dakota State Government

POSTED

about 22 hours ago

DEADLINE

More opportunities from Department Of Energy → Contracting Operations Division

Same awarding agency

Laboratory & Technical Evaluation ServicesThis 8A set-aside subcontract, managed by the Department of Energy Contracting Operations Division, provides laboratory testing and technical medical evaluations for prime contractors supporting the Office of Secure Transportation. The scope of work involves performing clinical laboratory tests, specifically blood and toxicology screenings, to ensure compliance with established OST Medical Standards. Eligible providers must utilize CLIA-certified laboratories or technical medical testing facilities to deliver accurate test results and comprehensive medical reports. The opportunity is categorized under NAICS code 624190 and was posted on October 27, 2026, with a response deadline of October 28, 2026.

Other Individual and Family Services

POSTED

DEADLINE

in about 11 hours

HRP Certification Training SupportThe HRP Certification Training Support subcontract, issued by the Department of Energy's Contracting Operations Division, focuses on providing specialized training services for prime contractors working on NNSA federal and contractor personnel projects. The selected provider will be responsible for developing and delivering comprehensive training modules that align with HRP certification requirements and NNSA suitability standards. This effort requires deep subject matter expertise to ensure all training materials and sessions accurately reflect current regulations. Key deliverables for this engagement include the execution of training sessions, the provision of all necessary instructional materials, and the maintenance of certification records. This opportunity is designated as an 8A set-aside under NAICS code 611430. Interested parties should note the tight turnaround between the posting date of October 27, 2026, and the response deadline of October 28, 2026.

Professional and Management Development Training

POSTED

DEADLINE

in about 11 hours

Occupational Safety & Environmental Health ServicesThis 8A set-aside subcontract for Occupational Safety and Environmental Health Services supports the Department of Energy Office of Secure Transportation. The selected provider will perform critical environmental, safety, and emergency management evaluations for prime contractors to ensure strict adherence to OST Worker Protection Management and General Safety Plans. All work must be executed in accordance with 29 CFR 1910 and 29 CFR 1926 standards, with a primary focus on delivering comprehensive safety evaluation reports and OSHA compliance documentation. To qualify for this engagement, the contractor must provide personnel with specialized certifications, specifically Certified Safety Professionals or Industrial Hygienists. The project falls under NAICS code 541620 and is managed by the Contracting Operations Division. Interested parties should note the tight response window following the October 27, 2026, posting date.

Environmental Consulting Services

POSTED

DEADLINE

in about 11 hours

Specialized Nursing & Case ManagementThis 8A set-aside subcontract through the Department of Energy Contracting Operations Division focuses on providing specialized nursing and case management services for prime contractors working on Office of Secure Transportation projects. The scope of work involves the delivery of certified Registered Nurses to perform nursing case management support and the coordination of medical evaluation issues, which includes the specific provision of a HU Lead Nurse Coordinator. The selected provider will be responsible for managing medical case files and coordinating necessary follow-up actions for HRP candidates. All personnel assigned to these tasks must maintain certified RN licensure to ensure compliance with the medical standards required for the project.

Home Health Care Services

POSTED

DEADLINE

in about 11 hours

Psychological Evaluation & Mental Health ServicesThis 8A set-aside subcontract through the Department of Energy Contracting Operations Division requires licensed psychologists to provide specialized psychological assessments and mental health evaluations. Supporting prime contractors on Office of Secure Transportation projects, the selected provider will execute rigorous testing protocols to identify any conditions that may impair judgment or reliability, ensuring personnel meet high-stakes security suitability standards. The scope of work focuses on the delivery of comprehensive psychological evaluation reports and formal mental suitability certifications. Operating under NAICS code 621340, this engagement is critical for maintaining the security integrity of DOE operations through professional clinical screenings and certifications.

Offices of Physical, Occupational and Speech Therapists, and Audiologists

POSTED

DEADLINE

in about 11 hours

Occupational Health & Clinical Medical ServicesThis 8A set-aside subcontract, managed by the Department of Energy Contracting Operations Division, focuses on the delivery of occupational health and clinical medical services for prime contractors supporting the Office of Secure Transportation. The scope of work involves performing comprehensive medical evaluations and testing for Federal Pilots and Nuclear Material Couriers to ensure compliance with Approved OST Medical Standards. The selected provider must strictly adhere to federal regulations 5 CFR 339 and 10 CFR 851 while conducting these assessments. Key deliverables include the submission of detailed medical evaluation reports and final suitability determinations. The project falls under NAICS code 621391 and is designated for specialized clinical medical services.

Offices of Podiatrists

POSTED

DEADLINE

in about 11 hours

Radiological and Chemical Laboratory AnalysisThis subcontract, titled Radiological and Chemical Laboratory Analysis, is issued by the Department of Energy's Contracting Operations Division. The project involves providing specialized laboratory testing and analysis of environmental samples, including soil, air, surface water, and springs, to identify both radioactive and non-radioactive contaminants. These services are intended to support prime contractors working on NNSA projects. To be eligible, providers must maintain NELAP accreditation and strictly adhere to DOE radiological safety standards. The primary deliverable consists of certified laboratory analysis reports. Interested parties should note the response deadline of November 12, 2026, and the associated NAICS code 541380.

Testing Laboratories and Services

POSTED

DEADLINE

Nuclear Nonproliferation Diagnostics and Engineering SupportThe Nuclear Nonproliferation Diagnostics and Engineering Support subcontract, issued by the Department of Energy Contracting Operations Division, provides critical technical engineering and subject matter expertise for the Defense Nuclear Nonproliferation program. The scope of work involves supporting prime contractors on NNSA projects through the characterization and calibration of diagnostics, as well as geospatial pointing determination. Key deliverables include the provision of calibrated diagnostic systems and the development of technical research road maps. Due to the sensitive nature of the work, personnel are required to hold either a DOE Q or Department of Defense Top Secret clearance. This opportunity falls under NAICS code 541330 and was posted on October 27, 2026, with a response deadline of November 12, 2026.

Engineering Services

POSTED

DEADLINE

Cultural Resources Management and Archaeology ServicesThis subcontract for Cultural Resources Management and Archaeology Services supports prime contractors on NNSA projects under the Department of Energy. The scope of work involves performing archaeological reconnaissance and historic preservation, including site inventories and osteological and faunal analysis. Additionally, the contractor is responsible for facilitating government-to-government interactions with Native American tribes. Compliance with specific federal regulations is mandatory, requiring adherence to SOI Professional Qualification Standards and the delivery of archaeological reports and curated artifact collections. The opportunity was posted on October 27, 2026, with a response deadline of November 12, 2026, falling under NAICS code 541620.

Environmental Consulting Services

POSTED

DEADLINE

CEMP Field Operations and Environmental MonitoringThe CEMP Field Operations and Environmental Monitoring subcontract involves providing specialized environmental monitoring services for prime contractors on NNSA projects located at the NNSS and NTTR. The scope of work includes the collection of meteorological data, radiological sampling of surface water and springs, and the operation of telemetric data collection systems. The primary deliverables for this engagement are raw meteorological data and collected environmental samples. Managed by the Department of Energy Contracting Operations Division under NAICS code 541620, this opportunity requires strict adherence to the 10 CFR 851 Worker Safety and Health Program. Additionally, personnel must possess either a DOE Q or DoW Top Secret security clearance. The response deadline for this subcontract is November 12, 2026.

Environmental Consulting Services

POSTED

DEADLINE

Request for Proposal - OST Human Reliability Progr

Solicitation # 89233125RNA000257

The Department of Energy's National Nuclear Security Administration, through the Office of Secure Transportation, is soliciting proposals for medical support services to maintain the medical readiness of Federal Agents within the Human Reliability Program. This 8A set-aside contract, identified as solicitation 89233125RNA000257, requires the contractor to provide health professionals capable of supporting diverse occupational health services, including clinical, psychological, and technical evaluations, as well as training support for HRP certification. The work is governed by strict federal regulations and OST medical standards to ensure personnel with access to nuclear explosive devices meet the highest physical and mental suitability standards. The contract is structured as a Time and Material (T&M) award with a performance period beginning with a phase-in from July 28, 2026, to August 27, 2026, followed by a base period and one option year. Award selection is based on best value, evaluated through a two-phase process focusing on technical approach, management approach, program manager qualifications, past performance, and oral presentations, with cost being the least important factor. Performance is monitored via a Quality Assurance Surveillance Plan with specific metrics for customer satisfaction and product accuracy. All services will be administered and delivered through the Albuquerque, New Mexico office.

All Other Miscellaneous Ambulatory Health Care Services

POSTED

DEADLINE

in about 11 hours

Technical Research, Engineering, and Development Services (TREDS) III supportin

Solicitation # 89233127RNA000340

The Technical Research, Engineering, and Development Services (TREDS) III contract, solicitation number 89233127RNA000340, is a cost-reimbursement no-fee acquisition managed by the National Nuclear Security Administration (NNSA) for the Department of Energy. The contract provides multidisciplinary technical research, engineering, and operational support focusing on nuclear nonproliferation, cultural resources management, community environmental monitoring, and hydrologic science. Work is performed across the Nevada National Security Site, the Nevada Test and Training Range, and over 24 monitoring locations in Nevada, Utah, and California. The total estimated value exceeds 89 million dollars over a ten-year period of performance, which consists of a two-year base period and four subsequent two-year options, with a potential six-month extension per FAR 52.217-8. The government is currently pursuing a proposed sole-source award to the Nevada System of Higher Education, doing business as the Desert Research Institute, under NAICS 541715. However, a Notice of Intent has been issued to determine if a competitive procurement is necessary based on the receipt of capability statements. Key requirements for any provider include active organizational Facility Security Clearances and personnel with DOE Q or DoW Top Secret clearances. Additionally, the contractor must demonstrate scientific independence and trust with state regulatory authorities, such as the Nevada Division of Environmental Protection, and adhere to strict worker safety and security requirements under DEAR 952.204-2 and NNS-H-1019.

Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)

POSTED

DEADLINE

Ready to Pursue This Opportunity?

Get AI-powered intelligence on this solicitation and the ones like it

Every page of the solicitation package shredded into a compliance breakdown

AI-powered matching based on your capabilities and past performance

Competitor and incumbent history on the requirement

Automated alerts on amendments, Q&A deadlines, and award

Join 750+ contractors already using CLEATUS