This Government Contract opportunity from California was posted on August 11, 2025. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Enrichment by Culture Method

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State & Local

Submission Closed10/09/2025, 12:00:00 AM UTC

Contract Overview

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

Active Opportunities Like This One

NAICS: 541380

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Certified Hazardous Waste Analytical TestingThis subcontract opportunity with the California Department of Transportation involves providing certified chemical analyses of waste samples for prime contractors working on hazardous waste projects. The selected provider will conduct laboratory testing to determine disposal requirements and deliver analytical reports essential for manifest and profiling purposes. Performance of these services is centered in Inyo. To be eligible, the contractor must operate a state-certified laboratory holding both SWRCB-ELAP and CalEPA Environmental Laboratory Accreditation Program certifications. Interested parties must submit their responses by November 10, 2026, under NAICS code 541380.

California Department of Transportation

POSTED

DEADLINE

Lead Testing and Environmental SamplingThis subcontract for Lead Testing and Environmental Sampling supports prime contractors on Gwinnett County Government firing range projects. The scope of work involves performing lead-level testing and wipe sampling on cleaned surfaces and within mechanical rooms to ensure lead concentrations remain below the threshold of 400 ug/ft2. All activities must be conducted using lead sampling kits and laboratory analysis in strict accordance with EPA and OSHA lead testing standards. The selected provider is responsible for delivering comprehensive testing reports and official clearance documentation to verify that the facilities are safe for occupancy and use. This opportunity falls under NAICS code 541380 and is associated with the state of Georgia. Interested parties should note the response deadline of November 13, 2026.

Gwinnett County Government

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DEADLINE

Third-Party Construction Materials Testing & InspectionThis subcontract for Third-Party Construction Materials Testing and Inspection supports the University of Massachusetts Medical School West Garage Modernization projects in Shrewsbury. The selected provider will perform independent quality assurance, field inspections, and materials testing for concrete, asphalt, and steel to ensure all construction materials comply with engineering specifications. Key deliverables include the submission of certified test reports and detailed inspection logs. To qualify for this engagement, the contractor must hold professional PE licensure and maintain laboratory accreditation through AASHTO or ASTM. The solicitation was posted on October 27, 2026, with a response deadline of November 17, 2026. The project falls under NAICS code 541380 and is managed through the University of Massachusetts System.

University of Massachusetts System

POSTED

DEADLINE

West Garage Modernization - 3rd Party Testing

Solicitation # BD-27-1109-UMMS-UMMS-134854

The University of Massachusetts System, specifically the UMass Medical School, has issued solicitation BD-27-1109-UMMS-UMMS-134854 for third party construction materials testing and inspection services as part of the West Garage Modernization project. This open market procurement is based in Shrewsbury, Massachusetts, with the performance of services occurring at the Washington Street location. The solicitation was posted on October 27, 2026, and requires responses by November 17, 2026. Administrative oversight is managed by the UPST Procurement Office, with Toby Lau serving as the primary purchaser. All inquiries and billing are directed to the office located at 50 Washington Street, Shrewsbury, MA 01581. While the contract specifies a single line item for the required testing and inspection services, the total contract value and specific unit pricing are not disclosed in the provided documentation. Proposals must be submitted through the COMMBUYS system.

University of Massachusetts System

POSTED

DEADLINE

Structural Special Inspections and Third-Party Review

POSTED

DEADLINE

Construction Materials Testing (CMT)This subcontract for Construction Materials Testing (CMT) involves providing specialized laboratory testing services for prime contractors operating on projects at California State University, Chico. The scope of work includes the collection of field samples for asphalt, soil, and concrete, followed by rigorous laboratory analysis to determine composition, compaction, and strength utilizing sieves and compression machines. All testing procedures must strictly adhere to ASTM standards to ensure structural integrity and quality control. The selected provider is responsible for delivering detailed daily reports and comprehensive material test result summaries. This opportunity is categorized under NAICS code 541380 and is centered in Chico, California. Interested parties must submit their responses by the deadline of November 5, 2026.

California State University, Chico

POSTED

DEADLINE

Certified Welding Inspection ServicesThis subcontract for Certified Welding Inspection Services involves providing specialized inspection and testing of structural steel components and welding for prime contractors at California State University, Chico. The scope of work includes conducting visual inspections of welds, performing non-destructive testing on structural joints, and verifying that all welding procedures are followed correctly. All services must be delivered in the form of detailed welding inspection reports and test results. To ensure quality and safety, the contractor must employ AWS/SNT Certified Welding Inspectors and maintain strict compliance with AWS and ANSI standards. The project is located in Chico, California, under NAICS code 541380. Interested parties must submit their responses by the deadline of November 5, 2026.

California State University, Chico

POSTED

DEADLINE

Campus Consulting – Construction Materials Testing And Special Inspection Services

Solicitation # RFP2026-08AM

California State University, Chico is soliciting proposals under RFP2026-08AM for a non-exclusive Task Order Service Agreement to provide special inspection and materials testing services. The selected service provider will supply certified staff, including ICBO Certified Special Inspectors and AWS/SNT Certified Welding Inspectors, to support contractors on an as-needed basis. All work must comply with the 2025 California Building Code and relevant ASTM, ICBO, and ANSI standards. The contract has an initial term of two years, with the option to renew for two additional two-year terms. Proposals are due by November 5, 2026, at 3:00 PM and must be submitted electronically to Amber Marquis. Evaluation criteria include a standard fee schedule, firm experience, staffing resumes, project history regarding scale and average cost, and specific experience with California State University institutions. Awarded providers must register with the Department of Industrial Relations for prevailing wage compliance and maintain comprehensive general liability insurance with a 4 million dollar general aggregate. Additionally, the contract requires that all work be performed within the United States and prohibits the provider from advising the university on public contracting. Payments will be processed monthly in arrears using the CSU invoice format.

California State University, Chico

POSTED

DEADLINE

Water Treatment & Chemical Dosing Systems

City & County of Swansea

POSTED

DEADLINE

Groundwater Sampling and Compliance Testing

Environment, Conservation and Parks

POSTED

DEADLINE

Asphalt and Concrete Materials TestingThis subcontract for Asphalt and Concrete Materials Testing involves providing specialized laboratory testing and calibration services for prime contractors working on Virginia Department of Transportation projects in Prince William County. The scope of work includes the preparation of job-mix formulas for asphalt and Crushed Hydraulic Cement Concrete, aggregate property testing, and ignition furnace calibration in accordance with VTM 102. To be eligible, the contractor must operate a VDOT-approved testing laboratory and be capable of delivering certified test results and approved job-mix formulas. The solicitation was posted on October 27, 2026, with a response deadline of November 18, 2026, falling under NAICS code 541380.

Virginia Department of Transportation

POSTED

DEADLINE

Systems Integration & Qualification TestingThis subcontract for Systems Integration and Qualification Testing supports US Navy NAWCAD WOLF radar projects under the Department of Defense. The selected provider will perform integration and test services, qualification testing, and the development of Engineering Development Modules for prime contractors. Key deliverables include comprehensive test reports and functional modules, requiring the contractor to possess specialized testing facilities capable of simulating radar system components and a deep understanding of Navy qualification protocols. The project is categorized under NAICS code 541380 and will be performed in Sparks. Interested parties must adhere to the response deadline of November 12, 2026.

Naval Air Warfare Center Air Division

POSTED

about 20 hours ago

DEADLINE

in 16 days

AI Contract Overview

The California Department of Food and Agriculture is seeking a subcontract for the implementation of enrichment by culture methods. The primary objective of this project is to utilize selective enrichment cultures to amplify target bacteria, specifically Salmonella or E. coli, from complex agricultural matrices to facilitate more effective detection. This opportunity was posted on August 11, 2025, with a response deadline set for October 9, 2025. The project falls under NAICS code 541380, focusing on specialized technical services related to agricultural food safety and bacterial amplification.