This Subcontract opportunity from Department Of The Interior was posted on August 28, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Estuary Hydrodynamic and Oil-Particle Aggregate (OPA) Modeling Consultant

Closed

Federal

Submission Closed09/18/2026, 05:00:00 PM MDT

Contract Overview

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

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NAICS: 541620

New

Federal

H941--Chemical Hoods & HEPA PM

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250-NETWORK Contract Office 10 (36C250)

POSTED

DEADLINE

Core Environmental Compliance Support Services – Darby Military Community (DMC), USAG Italy

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Norstar Plumbing and Engineering, Inc

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DEADLINE

National Firm to Support MPA managers, officers, authorities and communities

Solicitation # UNDP-VNM-02438

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DEADLINE

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POSTED

DEADLINE

RFP27-013 Hazard Mitigation Plan Update Services

Solicitation # PE-66300-NONST-2027-000000132

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Glynn County Board of Commissioners

POSTED

DEADLINE

Construction Management ServicesThis subcontract for Construction Management Services involves the oversight and management of construction activities for prime contractors working on utility projects within Pinellas County, Florida. The selected provider will be responsible for critical project controls, including scheduling, quality assurance, site inspections, and the coordination of contractors. To be eligible, firms must possess a valid Florida business license. The scope of work requires the delivery of essential project documentation, such as construction progress reports, detailed inspection logs, and comprehensive project closeout materials. Interested parties must submit their responses by December 10, 2026, in accordance with the solicitation posted by the Florida Utilities agency.

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DEADLINE

Environmental & Hazardous Waste ServicesThis subcontract for Environmental and Hazardous Waste Services supports prime contractors on utility projects within Pinellas County, Florida. The scope of work involves performing comprehensive environmental assessments, hazardous waste management planning, and site contamination analysis. The selected provider is responsible for conducting compliance monitoring in accordance with the Clean Air Act and the Federal Water Pollution Control Act, while ensuring all activities adhere to the Solid Waste Disposal Act and EPA-designated recovered materials guidelines. Key deliverables include the production of detailed environmental impact reports and the execution of compliance audits. Interested parties must submit their responses by the deadline of December 10, 2026. The project falls under NAICS code 541620 and is managed through the Florida Utilities agency.

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Solicitation # 26RFP20017

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POSTED

DEADLINE

Climate Adaptation & Vulnerability ConsultantThe City of Courtenay is seeking a Climate Adaptation and Vulnerability Consultant for a subcontracting role to analyze physical and socio-economic risks associated with climate change for municipal project prime contractors. The selected consultant will be responsible for mapping flood zones, performing heat stress analysis, and conducting comprehensive infrastructure vulnerability audits. These tasks require specialized expertise in GIS mapping and a deep understanding of regional climate projections. The primary deliverables for this engagement include a detailed Risk Report and a Vulnerability Assessment Map. Interested parties must submit their responses by December 1, 2026. This opportunity falls under NAICS code 541620 and is situated within the Province of British Columbia, Canada.

City of Courtenay

POSTED

about 22 hours ago

DEADLINE

in 21 days

AI Contract Overview

This subcontract, issued by the Department of the Interior's Office of Acquisition Grants-Denver, seeks a consultant to provide technical assistance and scientific consulting for USGS estuary projects. The selected party will focus on reviewing open-source hydrodynamic and spill models, defining model boundaries for the Bad River estuary, and offering expert guidance on the formation, transport, and deposition mechanisms of Oil-Particle Aggregates. All work must be performed using open-source hydrodynamic models and technical reporting software, with final deliverables consisting of technical reports, fact sheets, and model boundary definitions. The opportunity is designated as a total Small Business Set Aside under NAICS code 541620. Due to the nature of the work, the consultant must undergo a background investigation in accordance with FISMA form A08. Interested parties must respond by September 18, 2026.

General Info

Small business consultant providing technical and scientific assistance for USGS estuary projects.

Agency

Department Of The Interior → Ofc Of Acquisition Grants-Denver

NAICS

541620 - Environmental Consulting Services

Place of Performance

Set-Aside

SBA

Documents

This scope was carved out of 140G0226Q0161.

The full solicitation package (4 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

ESTUARY MODELING ASSISTANCE

AI Contract Breakdown

Uniform Contract Format

No documents to break down

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Timeline

PhaseClosed

PostedAug 28

subcontract

Response DeadlineSep 18

Deadline has passed

Submission Closed

09/18/2026, 05:00:00 PM MDT

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Organization & Contact Information

AgencyDepartment Of The Interior → Ofc Of Acquisition Grants-Denver

ContactsNo contacts available

OfficeN/A

Organization / AgencyDepartment Of The Interior → Ofc Of Acquisition Grants-Denver

Office AddressN/A

ContactsNo contact information available

Full Description

Performs technical assistance and scientific consulting for prime contractors on USGS estuary projects. Reviews open-source hydrodynamic and spill models, defines model boundaries for the Bad River estuary, and provides guidance on OPA formation, transport, and deposition mechanisms. Utilizes open-source hydrodynamic models and technical reporting software. Requires background investigation per FISMA form A08. Delivers technical reports, fact sheets, and model boundary definitions.