This Government Contract opportunity from Department Of The Interior was posted on May 15, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Stable Isotope Ratio Mass Spectrometry (SIR-MS) Analysis Services

Closed

Federal

Submission Closed05/22/2026, 11:00:00 PM UTC

Contract Overview

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

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NAICS: 541380

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Geotechnical Laboratory Soil TestingThe contract involves conducting comprehensive geotechnical laboratory testing on soil samples, including analyses such as grain size distribution, Atterberg limits, moisture content, density, swell potential, and soil classification following USCS and AASHTO standards. These tests are critical for assessing soil properties and behavior, supporting infrastructure projects managed by the Tennessee Department of Transportation (TDOT). The work is designated as a subcontract under NAICS code 541380, which pertains to testing laboratories. The contract is posted with a deadline for responses on June 26, 2026, and the laboratory testing will be performed primarily in the Maury area. No specific set-aside designation or organization type is specified. The solicitation is managed by TDOT, and the project documentation and proposal submission details are accessible through the TDOT bidding platform.

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DEADLINE

Third-Party Testing and Quality AssuranceThis contract involves performing independent testing and quality assurance services for materials and construction processes related to a project overseen by the Tennessee Department of Transportation (TDOT). The contractor is responsible for conducting thorough tests and delivering detailed reports within specified timelines to CSX for evaluation and approval. This ensures compliance with required standards and supports the overall integrity and safety of the construction work. The solicitation, titled "Third-Party Testing and Quality Assurance," is a subcontract opportunity identified by the NAICS code 541380, which pertains to testing laboratories. The work is to be performed in Davidson, Tennessee. Proposals were due on June 26, 2026, aligning with the posted date, indicating a tight response window. The contract emphasizes the importance of independent verification to maintain quality control throughout the construction process.

POSTED

DEADLINE

Construction Materials Testing and InspectionThis contract involves subcontracting third-party testing and inspection services for construction materials, specifically concrete and structural steel, to ensure compliance with the standards set by the Tennessee Department of Transportation (TDOT) and CSX. The primary focus is on verifying the quality and safety of these materials used in construction projects located in Sullivan, Tennessee. The contract falls under the NAICS code 541380, which covers testing laboratories, and it was posted and set with a response deadline on June 26, 2026. The Tennessee Department of Transportation is overseeing the contract, although specific details about the office address and point of contact are not provided. Interested parties are directed to submit proposals by the deadline through the TDOT bidding portal. This subcontract aims to support the integrity and regulatory compliance of infrastructure projects in the region.

Tennessee Department of Transportation

POSTED

DEADLINE

Intelligent Compaction (IC) ServicesThis contract requires the provision and operation of an Intelligent Compaction (IC) system during asphalt placement projects in Sequatchie. The IC system must monitor compaction in real time, producing color-coded maps that visually represent the compaction progress and quality. Additionally, the collected data is required to be uploaded daily to cloud storage to ensure compliance with Tennessee Department of Transportation (TDOT) standards and facilitate ongoing project oversight. The solicitation, identified under the NAICS code 541380, is a subcontract opportunity issued by TDOT with a response deadline of June 26, 2026. Although specific organizational qualifications or set-aside provisions are not mentioned, the contractor must have the capability to deliver both the technology and operational expertise to support advanced asphalt compaction monitoring. The place of performance is Sequatchie, Tennessee, emphasizing the local application of this technology in TDOT infrastructure projects.

POSTED

DEADLINE

Intelligent Compaction (IC) Monitoring and ReportingThe contract involves providing real-time monitoring and reporting of compaction data during Hot Mix Asphalt (HMA) paving operations using Intelligent Compaction (IC) certified equipment. The key requirement is the integration of this data with the Tennessee Department of Transportation’s (TDOT) Electronic Technical Automation System (ETAS) to ensure seamless data exchange and enhanced project oversight. The subcontract focuses on the use of advanced technology to improve paving quality and operational efficiency. This opportunity is issued by the Tennessee Department of Transportation, with the place of performance specified as Grundy. The contract is categorized under NAICS code 541380, which relates to testing laboratories, indicating a technical and specialized service scope. The solicitation and response deadlines both fall on June 26, 2026, emphasizing prompt submission from interested subcontractors. Overall, this contract is targeted at firms equipped with IC technology and capable of integrating their systems with TDOT’s platforms to support infrastructure projects.

Tennessee Department of Transportation

POSTED

in 10 days

DEADLINE

in 10 days

AI Contract Overview

This contract involves subcontracting specialized analytical services for high-precision isotopic analysis of biogenic calcium carbonate samples. The required analyses include δ¹⁸O, δ¹³C, and δ¹⁵N isotopic ratios, utilizing advanced instrumentation such as IRMS combined with Gas-Bench II or Thermo Flash EA - ConFlo IV systems. The work is issued by the Department of the Interior's Office of Acquisition Grants at the national level, focusing on delivering accurate stable isotope ratio mass spectrometry (SIR-MS) results to support scientific or environmental investigations. The solicitation was posted on May 15, 2026, with responses due by May 22, 2026, emphasizing a prompt turnaround for interested subcontractors. Classified under NAICS code 541380, this opportunity targets providers capable of highly technical laboratory services within the research domain. Details regarding specific performance locations, points of contact, or set-aside provisions are not specified, indicating a potentially broad or flexible scope of work, with all further contracting information accessible through the official federal contracting platform.

General Info

Subcontract for high-precision isotopic analysis of biogenic carbonates using IRMS technology.

Agency

Department Of The Interior → Ofc Of Acqusition Grants-national

NAICS

541380 - Testing Laboratories and ServicesView NAICS

Place of Performance

Set-Aside

NONE

Documents

(0)

No documents available

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Timeline

PhaseClosed

PostedMay 15

subcontract

Response DeadlineMay 22

Deadline has passed

Submission Closed

05/22/2026, 11:00:00 PM UTC

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Organization & Contact Information

AgencyDepartment Of The Interior → Ofc Of Acqusition Grants-national

ContactsNo contacts available

OfficeN/A

Organization / Agency

Department Of The Interior → Ofc Of Acqusition Grants-national

Office AddressN/A

ContactsNo contact information available

Full Description

Perform high-precision δ¹⁸O, δ¹³C, and δ¹⁵N isotopic analysis on biogenic calcium carbonate samples using IRMS with Gas-Bench II or Thermo Flash EA - ConFlo IV systems.