This Subcontract opportunity from California was posted on June 1, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Geotechnical Testing and Soil Analysis

Closed

State & Local

Submission Closed06/17/2026, 12:00:00 PM PDT

Contract Overview

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

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NAICS: 541360

New

Federal

SOLICITATION NUMBER 393274 “HANFORD TANK FARMS VADOSE GEOPHYSICAL LOGGING”

Solicitation # SOLICITATION_NUMBER_393274

Hanford Tank Waste Operations & Closure Llc - DOE Contractor

POSTED

DEADLINE

Borehole Geophysical Logging and Soil SamplingThis subcontract involves performing borehole geophysical logging and soil sampling for prime contractors supporting U.S. Department of Energy projects at the Hanford Field Office. The scope of work is specifically focused on the vadose zone within the Hanford Tank Farms hydrogeologic setting, with the final deliverables consisting of completed geophysical logs and soil samples. To be eligible, the contractor must possess at least 10 years of corporate experience and maintain a warehouse and mechanical shop for equipment fabrication and storage located within 75 miles of the Hanford Site. The solicitation was posted on November 11, 2026, with a response deadline of December 8, 2026, falling under NAICS code 541360.

POSTED

DEADLINE

HANFORD TANK FARMS VADOSE GEOPHYSICAL LOGGING

Solicitation # 393274

Hanford Tank Waste Operations & Closure, LLC (H2C) is soliciting proposals for Hanford Tank Farms Vadose Geophysical Logging under a Firm Fixed Price contract. This effort supports Prime Contract 89303324DEM000096 with the U.S. Department of Energy, Hanford Field Office. The period of performance extends from the award date through September 30, 2027. The acquisition falls under NAICS code 541360 for Geophysical Surveying and Mapping Services, with a small business size standard of 28.5 million dollars. The subcontract will be awarded to the responsible offeror based on a Lowest Price and Technically Acceptable (LPTA) basis. Proposals are subject to a pass/fail screening process focusing on four key evaluation factors: the ability to furnish and decontaminate necessary sampling equipment, access to a mechanical shop and warehouse within 75 miles of the Hanford Site, a minimum of ten years of corporate experience in borehole geophysical logging and soil sampling, and the ability to provide qualified personnel. Compliance requirements include adherence to the Fair Labor Standards Act, Service Contract Act, and State of Washington equal employment opportunity statutes. Offerors must provide an Organizational Conflict of Interest certification, OSHA 300 logs, and proof of insurability. Proposals must be submitted electronically in two separate volumes: a Technical Proposal and a Business and Price Proposal featuring a detailed hourly rate breakdown.

POSTED

DEADLINE

Ground Penetrating Radar (GPR) Field Services & AnalysisThis subcontract for Ground Penetrating Radar (GPR) Field Services and Analysis supports prime contractors on Federal Highway Administration projects under the Department of Transportation's Eastern Federal Lands Division. The scope of work involves performing subsurface imaging using multi-channel, stepped-frequency vehicular GPR arrays to detect aquifers, groundwater tables, saturated zones, shallow water streams, and subgrade voids. The selected provider is responsible for delivering subsurface profile maps and both draft and final GPR data reports. All electronic deliverables must maintain compliance with Section 508 and FHWA Form 4260. The place of performance is located in Ashburn, Virginia, under NAICS code 541360.

693C73 Eastern Federal Lands Division

POSTED

DEADLINE

PROJECT MS NP NATR 3P29 - GROUND PENETRATING RADAR (GPR) DATA COLLECTION

Solicitation # 693C7327Q000003

The Federal Highway Administration (FHWA) Eastern Federal Lands Highway Division is seeking to procure Ground Penetrating Radar (GPR) data collection and analysis services for Project MS NP NATR 3P29. The scope of work requires the creation of a detailed subsurface profile map to identify saturated zones, shallow water streams, the existing groundwater table, and surgrade voids. The agency has issued a notice of intent to sole source this requirement to ECS Southeast, LLC, citing their specialized multi-channel, stepped-frequency vehicular GPR array as essential for meeting the project's technical and logistical constraints. However, other responsible sources may submit quotations by the deadline of November 20, 2026. The contract requires the delivery of a draft GPR data report for approval followed by a final GPR submittal. All electronic deliverables must comply with Section 508 of the Rehabilitation Act and FHWA Form 4260 ICT Conformance Criteria to ensure accessibility for persons with disabilities. Administratively, the contractor must maintain an active registration in the System for Award Management (SAM) and utilize the Delphi eInvoicing web-portal for all payment requests. This procurement is not a small business set-aside and is governed by various FAR clauses, including those regarding commercial services, sustainable products, and security prohibitions.

693C73 Eastern Federal Lands Division

POSTED

DEADLINE

26П-694П_713500006 Науково-технічні послуги в галузі інженерії (Державна експертиза матеріалів звіту "Геолого-економічна оцінка запасів вуглеводнів Західно-Соснівського газоконденсатного родовища Харківської області України" (станом на 01.01.2026 р.)

Solicitation # UA-2026-11-09-014795-a

This solicitation, issued by JSC Ukrgazvydobuvannya under the Government of Ukraine, seeks scientific and technical engineering services. The specific scope of work involves the state expertise of report materials regarding the geological and economic assessment of hydrocarbon reserves at the Zakhidno-Sosnivske gas condensate field located in the Kharkiv region of Ukraine, with data current as of January 1, 2026. The procurement process is identified by solicitation number UA-2026-11-09-014795-a and was posted on November 9, 2026. The contracting agency is based in Kyiv, and the performance of the services will take place within Ukraine. In accordance with Ukrainian law regarding the prevention of money laundering and terrorism financing, certain information requirements regarding beneficial ownership do not apply to the State Commission of Ukraine on Mineral Reserves involved in this process.

АТ "УКРГАЗВИДОБУВАННЯ"

POSTED

DEADLINE

26П-693П _71350000-6 Науково-технічні послуги в галузі інженерії (Державна експертиза матеріалів звіту "Геолого-економічна оцінка запасів вуглеводнів Південно-Грабинського газоконденсатного родовища Львівської області України")

Solicitation # UA-2026-11-09-014409-a

This solicitation, issued by JSC Ukrgazvydobuvannya under the Government of Ukraine, seeks scientific and technical engineering services. Specifically, the contract involves the state expertise of report materials regarding the geological and economic assessment of hydrocarbon reserves at the Pivdenno-Grabinske gas condensate field located in the Lviv region of Ukraine. The procurement process is identified by solicitation number UA-2026-11-09-014409-a and was posted on November 9, 2026. The primary point of contact for this project is Nataliia Danyshurka, and the performance of the services will take place within Ukraine. Additionally, the documentation notes that the State Commission of Ukraine on Mineral Reserves is exempt from providing ultimate beneficial owner information in accordance with national anti-money laundering and counter-terrorism financing laws.

АТ "УКРГАЗВИДОБУВАННЯ"

POSTED

DEADLINE

Mineral systems inventory and assessments

Solicitation # GA2026/2574

Led by Geoscience Australia, Resourcing Australia’s Prosperity is a 35-year precompetitive geoscience initiative designed to facilitate the discovery and responsible development of strategic materials and critical minerals essential for the transition to net zero. The program focuses on improving the understanding of resource prospectivity and reducing investment risks through 12 detailed, multi-commodity Deep Dive assessments in onshore regions with unrealised potential. These assessments involve the collection, analysis, and interpretation of geoscientific data in partnership with state and territory governments. The specific solicitation for mineral systems inventory and assessments, identified by number GA2026/2574, was posted on November 9, 2026, with a response deadline of December 7, 2026. Performance of the contract is expected across major Australian cities, including Canberra, Sydney, Melbourne, Adelaide, Perth, Brisbane, Darwin, and Hobart. Interested parties may contact Megan Gray via the provided agency email for further information.

POSTED

DEADLINE

27П-029П_713500006 Науково-технічні послуги в галузі інженерії (Державна експертиза матеріалів звіту "Геолого-економічна оцінка запасів вуглеводнів Західно-Волохівської площі, в тому числі Західно-Білозірського та Моспанівського родовищ Харківської област

Solicitation # UA-2026-11-09-010192-a

This solicitation, issued by JSC Ukrgazvydobuvannya under the Government of Ukraine, seeks scientific and technical engineering services. Specifically, the contract involves the state expertise of report materials regarding the geological and economic assessment of hydrocarbon reserves within the West Volokhivska area, including the West Bilozirske and Mospanivske fields located in the Kharkiv region. The procurement process is identified by solicitation number UA-2026-11-09-010192-a and was posted on November 9, 2026. The primary point of contact for this project is Nataliia Danyshurka, with the agency based in Kyiv, Ukraine. Additionally, the documentation notes that the State Commission of Ukraine on Mineral Reserves is exempt from providing ultimate beneficial owner information in accordance with national anti-money laundering and counter-terrorism financing laws.

АТ "УКРГАЗВИДОБУВАННЯ"

POSTED

DEADLINE

Applied TEM and Groundwater Assessment Training, including field investigations at three schools in Teouma, Efate, Vanuatu. Pacific Supply - [email hidden]

Solicitation # LRQS-2026-9207201

UNICEF is soliciting proposals under solicitation number LRQS-2026-9207201 for an applied Transient Electromagnetic (TEM) and groundwater assessment training program in Teouma, Efate, Vanuatu. The primary objective is to strengthen the practical capacity of 15 to 20 local, regional, and UNICEF personnel to plan, conduct, and interpret TEM surveys. The scope of work includes the delivery of a five-day tailored course and the completion of field-based groundwater assessments and potential mapping at three specific sites: Nuakwanabu Primary School, Greenhill Primary School, and Nakuskasaru School. Key deliverables include quality-controlled TEM datasets, site maps, inversion outputs, ranked borehole investigation targets, standard operating procedures, and a final training package. Bids must be submitted by November 12, 2026, and must consist of a separate technical proposal and a signed financial proposal providing a lump sum amount for all deliverables. Proposals will be evaluated based on mandatory requirements, technical compliance, and commercial viability, with the award granted to the lowest priced technically compliant bidder. The contractor is responsible for the technical quality of all data and training, as well as ensuring valid health insurance and visas for personnel. All resulting contracts are governed by UNICEF's General Terms and Conditions of Contract for Services, and final acceptance of the deliverables is contingent upon approval by UNICEF and the DOWR/MOET.

POSTED

DEADLINE

Geotechnical InvestigationThis subcontract opportunity, managed by DAS Procurement for the State of Connecticut, involves performing essential subsurface investigations for bridge replacement projects in the Town of Killingly. The selected contractor will be responsible for conducting soil borings, cone penetration testing, and detailed laboratory analysis to establish soil bearing capacity and determine necessary foundation requirements. The final deliverable for this engagement is a comprehensive Geotechnical Engineering Report. To qualify for this project, the contractor must employ a Licensed Professional Geologist or a Professional Engineer. Interested parties should note that the response deadline is December 10, 2026, at 3:00 PM. This procurement falls under NAICS code 541360 and is intended for firms capable of providing specialized geotechnical expertise to support prime contractors on these infrastructure improvements.

POSTED

DEADLINE

Localized Wind Pattern Field ResearchThis subcontract for Localized Wind Pattern Field Research supports US Geological Survey projects within the Hakalau Forest National Wildlife Refuge. The selected provider will be responsible for the deployment and maintenance of weather stations, data loggers, and anemometers in high-elevation forest environments to measure localized wind speed and direction. All climatic data collection must strictly adhere to FGDC standards. The contractor is required to deliver raw climatic data sets, technical reports, and analyzed wind pattern maps. This opportunity falls under NAICS code 541360 and is managed by the Department of the Interior. Interested parties must submit their responses by the deadline of December 7, 2026.

US Geological Survey

POSTED

8 days ago

DEADLINE

in 24 days

AI Contract Overview

This contract involves performing comprehensive geotechnical field and laboratory testing to assist in engineering evaluations. Key tasks include soil classification, determination of Atterberg Limits, hydrometer analysis, and compaction testing. These services are essential to assess soil properties that impact construction and infrastructure projects. Issued by the Engineering Bureau of Public Works in California, the subcontract focuses on activities to be conducted primarily in Los Angeles. The solicitation was posted on June 1, 2026, with a response deadline set for June 17, 2026. The contract falls under NAICS code 541360, indicating professional scientific and technical services, and aims to provide specialized geotechnical analysis without any specified set-aside requirements.

General Info

Geotechnical testing and soil analysis services for construction projects in Los Angeles, issued June 2026.

Agency

California → Engineering Bureau, Public Works

NAICS

541360 - Geophysical Surveying and Mapping Services

Place of Performance

Los Angeles, CA, USA

Set-Aside

NONE

Documents

This scope was carved out of 230293.

The full solicitation package (3 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

TOS No. 21-024 - West Los Angeles Maintenance Yard Project - Limited Phase II Environmental Site Assessment

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Timeline

PhaseClosed

PostedJun 1

subcontract

Response DeadlineJun 17

Deadline has passed

Submission Closed

06/17/2026, 12:00:00 PM PDT

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Organization & Contact Information

AgencyCalifornia → Engineering Bureau, Public Works

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → Engineering Bureau, Public Works

Office AddressN/A

ContactsNo contact information available

Full Description

Perform geotechnical field and lab testing including soil classification, Atterberg Limits, hydrometer analysis, and compaction testing to support engineering evaluation.