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

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Environmental Consulting Services

Closed

State & Local

Submission Closed09/23/2026, 11:00:00 AM EDT

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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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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Brownsville Housing Authority

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DEADLINE

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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DEADLINE

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California Department of General Services

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On-Call Solid Waste Data Analysis and Economic Services

Solicitation # 26-202-S

Seattle Public Utilities is seeking an on-call consultant to provide expert solid waste data analysis and economic services to support the city's Zero Waste goals. This contract, with an estimated value of $625,000 and a duration of up to five years, focuses on leveraging extensive datasets to evaluate the effectiveness, equity, and feasibility of solid waste incentives, programs, and policies. The scope of work includes program evaluation using causal inference, economic modeling, demand forecasting, longitudinal analysis of waste characteristics, and the extraction of data from Microsoft Access databases. A key component of the engagement is the translation of complex technical findings into actionable insights through data visualization, strategic storytelling, and high-quality reports for both technical and non-technical audiences. The selection process is based on a weighted evaluation of project team qualifications and research and analytical capabilities, with a strong emphasis on equity-centered analysis and the ability to manage multiple projects in an on-call environment. Awarded consultants must adhere to strict compliance standards, including mandatory WMBE inclusion plans for contracts over $343,000, adherence to the Americans with Disabilities Act and WCAG accessibility guidelines, and compliance with Seattle's Equal Benefits and minimum wage ordinances. The contract is governed by a template that incorporates FAR Part 31 for allowable overhead costs and requires specific insurance coverages, including Commercial General Liability and Worker's Compensation. Work is assigned via individual work assignments, each with its own defined schedule and deliverables.

Seattle Public Utilities

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Environmental and Resource Agency Permitting ConsultantThe Environmental and Resource Agency Permitting Consultant subcontract involves securing necessary resource agency permits for prime contractors working on bridge projects for the County of San Mateo. The selected consultant will be responsible for coordinating with the California Department of Fish and Wildlife and the US Army Corps of Engineers to obtain permits for work conducted in wetland drainage areas, while ensuring all activities remain compliant with Planning Permit PLN2013-00451. This engagement requires specialized expertise in resource agency permitting processes and a deep understanding of wetland regulations to successfully deliver approved permits. Managed by the Planning and Building agency, the solicitation was posted on November 6, 2026, with a response deadline of November 17, 2026.

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Solicitation # 2027-RFP - Big Wave Bridge-00211

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Planning and Building

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Environmental Compliance and DrainageThis subcontract for the California Department of Transportation focuses on environmental compliance and drainage installation for highway projects in San Diego. The selected provider will be responsible for developing critical documentation, including Lead Compliance and Water Pollution Control Plans, while ensuring all operations adhere to Senate Bill 1383 regulations concerning treated wood waste. Technical deliverables include the installation of Modified Type OS Inlets and Temporary Drainage Inlet Protection. The contractor must provide both the approved compliance plans and the physical installation of drainage hardware to support prime contractors in meeting state environmental standards.

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Environmental and Archaeological Compliance MonitoringThis subcontract focuses on providing environmental and archaeological compliance monitoring for prime contractors working on Texas Parks and Wildlife Department projects. The primary scope of work involves coordinating with cultural resource personnel to establish machinery access routes that avoid archaeological features and overseeing the strict implementation of environmental Best Management Practices. The selected provider is responsible for delivering essential compliance reports and official resource protection sign-offs to ensure all regulatory requirements are met. This opportunity falls under NAICS code 541620 and is associated with the state of Texas, with a response deadline set for November 19, 2026.

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DEADLINE

Mine Rehabilitation Reporting and Technical SupportThis subcontract for Mine Rehabilitation Reporting and Technical Support involves providing specialized technical monitoring and progressive reporting for prime contractors working on Ontario Ministry of Energy and Mines projects. The scope of work requires high-level expertise in geotechnical, water resource, geochemical, and ecology fields to ensure all rehabilitation efforts comply with the Species at Risk Survey and other regulatory standards. The project is managed under the Government of Ontario's Energy and Mines agency and is categorized under NAICS code 541620. Interested parties must submit their responses by December 7, 2026, to support the delivery of essential progressive rehabilitation reports and technical oversight within Canada.

POSTED

DEADLINE

Environmental Due Diligence and Site AssessmentThis subcontract focuses on providing technical due diligence and environmental assessments for prime developers working on land projects managed by the City of Cleveland Department of Economic Development. The scope of work includes conducting Phase I and II Environmental Site Assessments, producing geotechnical reports, and performing land surveys to evaluate the buildability of designated sites. The primary objective is to deliver comprehensive due diligence reports and necessary environmental documentation to support development decisions. The project falls under NAICS code 541620 and is associated with the state of Ohio. Interested parties should note that the response deadline for this opportunity is January 4, 2027. All activities are centered on ensuring that land projects meet the required technical and environmental standards before construction begins.

Economic Development

POSTED

1 day ago

DEADLINE

in about 2 months

AI Contract Overview

This subcontract for Environmental Consulting Services, managed by the Economic Development agency in Connecticut, focuses on providing environmental consulting and assessment services for residential preservation projects in the City of Meriden. The selected provider will support prime contractors by performing site assessments and environmental testing using specialized sampling equipment, culminating in the delivery of detailed environmental assessment reports. Qualified candidates must hold professional environmental certification and operate under NAICS code 541620. The solicitation was posted on September 1, 2026, with a response deadline of September 23, 2026.

General Info

Environmental consulting subcontract for residential preservation site assessments and testing in Meriden, Connecticut.

Agency

Connecticut → Economic Development

NAICS

541620 - Environmental Consulting Services

Place of Performance

CT, USA

Set-Aside

NONE

Documents

This scope was carved out of RFQ027-24.

The full solicitation package (5 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Construction Services for Meriden's Neighborhood Preservation Program

AI Contract Breakdown

Uniform Contract Format

No documents to break down

The breakdown needs solicitation documents. None were found from this contract's source.

Timeline

PhaseClosed

PostedSep 1

subcontract

Response DeadlineSep 23

Deadline has passed

Submission Closed

09/23/2026, 11:00:00 AM EDT

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Organization & Contact Information

AgencyConnecticut → Economic Development

ContactsNo contacts available

OfficeN/A

Organization / AgencyConnecticut → Economic Development

Office AddressN/A

ContactsNo contact information available

Full Description

Provides environmental consulting and assessment services for prime contractors on City of Meriden residential preservation projects. Performs environmental testing and site assessments using specialized sampling equipment. Requires professional environmental certification. Delivers environmental assessment reports.

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