This Subcontract opportunity from California was posted on September 22, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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HERS Rating and Duct Testing

Closed

State & Local

Submission Closed10/20/2026, 02:00:00 PM PDT

Contract Overview

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

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NAICS: 541620

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DIBBS

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DLA WEAPONS SUPPORT STRATEGIC ACQ PROGRAM DIRECTORATE

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U.S. DEPARTMENT OF ENERGY/NATIONAL NUCLEAR SECURITY ADMINISTRATION (DOE/NNSA)OFFICE OF COUNTERTERRORISM AND COUNTER-PROLIFERATION (NA-80) TECHNICAL SUPPORT SERVICESThe National Nuclear Security Administration, an agency of the Department of Energy, is forecasting a requirement for technical support services to benefit the Office of Counterterrorism and Counter-proliferation. This procurement is categorized under NAICS code 541620 and is intended to be set aside for small businesses. The work is expected to be performed in the District of Columbia. The current incumbent contractor for these services is Project Enhancement Corporation. Interested parties may coordinate with the Small Business Program Manager, Chelsea Murphy, regarding this upcoming opportunity.

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Radiological Technical Services & Air MonitoringThis SBA set-aside subcontract for the Environmental Protection Agency Region 9 involves providing radiological technical services and air monitoring for environmental remediation projects. The selected provider will support prime contractors by delivering health physics oversight, radiation scanning, and air sampling for particulates. Technical execution requires the use of SKC Particulate Monitors and MultiRAE Pro Pumped equipment, with a mandate for personnel to hold Radiation Technician certifications or be Certified Health Physicists. The scope of work includes the delivery of daily and weekly air monitoring reports to ensure safety and compliance. Interested parties should note that the response deadline is January 5, 2027, and the project falls under NAICS code 541620.

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Site Conditions and Geotechnical AnalysisThis subcontract for Site Conditions and Geotechnical Analysis involves performing technical investigations of existing site conditions for prime contractors working on Housing Corporation of East Windsor projects. The selected provider will utilize soil sampling equipment and geotechnical testing tools to evaluate physical and environmental constraints, identifying critical issues that may impact overall project feasibility. These efforts will culminate in the delivery of essential technical input for the Existing Conditions and Constraints Memorandum. Managed by DAS Procurement for the state of Connecticut, the contract requires the provider to hold a Professional Geologist or PE license and maintain Professional Liability insurance. Interested parties must respond by November 14, 2026, regarding this opportunity which falls under NAICS code 541620.

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Geotechnical and Materials TestingThis subcontract for Geotechnical and Materials Testing involves providing quality control services for prime contractors working on Kansas Turnpike Authority projects. The scope of work focuses on the testing of soil and asphalt materials, specifically requiring the establishment of maximum density-optimum moisture curves per ASTM D 698, in-place density determinations, concrete compressive strength tests, and sieve analysis for granular subbase. The selected contractor will utilize nuclear density gauges and compression machines to perform these technical evaluations and is responsible for delivering all resulting testing reports and curves. This opportunity falls under NAICS code 541620 and is associated with the state of Kansas.

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CONSULTING SERVICES - Rural School Septic System Studey

Solicitation # RFP27-31

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Groundwater Data Processing and Hydrogeological ModelingThis subcontract for Groundwater Data Processing and Hydrogeological Modeling supports UNICEF projects in Vanuatu by providing specialized geophysical data analysis. The selected contractor will be responsible for inverting raw TEM data to create inversion outputs, interpretive sections, and maps. By integrating these results with topography, geology, borehole records, and water quality data, the contractor will rank borehole investigation targets and deliver comprehensive technical groundwater assessment reports and site maps. To qualify for this engagement, the contractor must possess professional credentials as a hydrogeologist or geophysicist and have access to necessary GIS software. The work falls under NAICS code 541620 and focuses on delivering critical data processing and modeling services to assist prime contractors in identifying viable groundwater sources within the region.

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Legionella Water Sample Collection ServicesThis subcontract for Legionella Water Sample Collection Services involves performing on-site water sample collection for prime contractors working on California Department of General Services facility projects. The scope of work includes conducting routine and investigative sampling of both domestic and non-potable water systems, specifically focusing on pre and post flush sampling and the measurement of residual disinfectant, temperature, and pH levels. The selected provider must manage the Chain of Custody and ensure all activities adhere to the AIHA Technical Framework: Legionella 2020 standards. Responsibilities include the delivery of collected samples accompanied by completed Chain of Custody forms. This opportunity falls under NAICS code 541620, with a response deadline of November 23, 2026.

California Department of General Services

POSTED

2 days ago

DEADLINE

in 15 days

AI Contract Overview

This subcontract opportunity is for the provision of HERS rating and duct testing services for prime contractors working on projects for the Housing Authority of the County of San Joaquin in Stockton, California. The selected provider will be responsible for performing energy efficiency testing using blower door equipment and duct leakage tools to identify necessary repairs, ultimately delivering certified HERS rating reports and documentation required for invoice processing. To qualify for this engagement, contractors must hold a Certified HERS Rater credential and maintain valid California Department of Industrial Relations registration. Interested parties must submit their responses by October 20, 2026, under NAICS code 541620.

General Info

HERS rating and duct testing services for San Joaquin Housing Authority by October 2026.

Agency

California → HOUSING AUTHORITY OF THE COUNTY OF SAN JOAQUIN

NAICS

541620 - Environmental Consulting Services

Place of Performance

Stockton, CA, 95206, USA

Set-Aside

NONE

Documents

This scope was carved out of 2526-015.

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

View the prime solicitation

Diablo And Conway Homes Hvac Replacement

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Timeline

PhaseClosed

PostedSep 22

subcontract

Response DeadlineOct 20

Deadline has passed

Submission Closed

10/20/2026, 02:00:00 PM PDT

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Organization & Contact Information

AgencyCalifornia → HOUSING AUTHORITY OF THE COUNTY OF SAN JOAQUIN

ContactsNo contacts available

OfficeN/A

Organization / AgencyCalifornia → HOUSING AUTHORITY OF THE COUNTY OF SAN JOAQUIN

Office AddressN/A

ContactsNo contact information available

Full Description

Performs energy efficiency testing for prime contractors on Housing Authority of the County of San Joaquin projects. Conducts HERS ratings using blower door equipment and duct leakage testing tools to identify required duct repairs. Requires Certified HERS Rater credential and CA DIR registration. Delivers HERS rating reports and certified paperwork for invoice submission.

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